病毒载体疫苗
病毒载体疫苗为生物制药行业带来新的希望,解决了很多未满足的适应症。病毒载体领域采用40多种载体研究基因治疗和疫苗,其中腺病毒和改良的安卡拉痘苗病毒最常用于疫苗应用,腺相关病毒通常用于基因治疗,而慢病毒通常用于基因改造的细胞疗法。为了充分发挥病毒载体疫苗的潜力,很多生产商正在寻求创新的技术,以为更多产、强化和灵活的工艺提供支持。
病毒载体疫苗平台
了解病毒载体为什么是疫苗生产中最常用的平台之一。
病毒载体
我们邀请您了解赛多利斯专用于病毒载体生产和纯化的技术解决方案。在您探索包膜载体、非包膜载体和常用载体(例如腺病毒、AAV、慢病毒和MVA)的通用工艺概览时,您可点击每个步骤查看生产商在病毒载体疫苗开发工作中面临的挑战——并发现赛多利斯如何提供独特的解决方案来满足这些需求。您还将看到有关工艺步骤可用技术的相关文献。
通用病毒载体疫苗
细胞系/菌株选择
细胞系/菌株选择
Selecting cell lines and strains that produce commercially acceptable yields can be difficult and labor-intensive. Proper high throughput development tools — or a capable partner who has access to those tools — allow operators to confidently select a stable and safe cell line.
▶ Suspension Process
Need | Solution |
---|---|
Selecting the optimum cell line or clone for the target virus relies on low-volume screening tools and fast analytics Fully scalable HTPD tools, inline analytics are needed to quickly define the best operating conditions for cell expansion (media selection, process parameters optimization) and virus propagation (media, feed, multiplicity of infection, time of infection, harvest time, etc.) Many in industry are moving away from serum-containing media in favor of chemically defined (CD) media to support process safety and robustness Ultimately, having an experienced partner capable of providing the characterization tools for the cell line is the way to select a stable and safe cell line with confidence | The flexibility and functionality of Ambr® 15 & Ambr® 250 can accelerate cell line selection and process optimization. Ambr® is the only high-throughput cell culture system with scalable, multiparallel mini-bioreactors and automated functionality.
Additional Solutions to Consider:
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▶ Adherent Process
Need | Solution |
---|---|
Selecting the optimum cell line or clone for the target virus relies on low-volume screening tools and fast analytics Fully scalable HTPD tools with inline analytics are needed to quickly define the best operating conditions for cell expansion (media selection, microcarrier selection, process parameters optimization) and viral vector propagation by infection or plasmid transfection (media, feed, multiplicity of infection, time of infection, plasmid concentration, inducibility harvest time, etc.) In order to effectively evaluate adaptation of adherent cell line to suspension, there is a pressing need for low volume screening tools and fast analytics Many in industry are moving away from serum-containing media in favor of chemically defined (CD) media to support process safety and batch consistency Ultimately, having an experienced partner capable of providing the characterization tools for the cell line is the way to select a stable and safe cell line with confidence | A new generation of Ambr® 15 tailored to microcarriers applications and Ambr® 250 vessels designed for microcarriers can accelerate cell line selection and process optimization. Ambr® is the only high-throughput cell culture system with scalable, multiparallel mini-bioreactors, automated functionality and vessels developed for microcarriers.
Additional Solutions to Consider:
|
种子扩增
种子扩增
Seed expansion from cell bank to production bioreactor must be successfully achieved before the viral vector propagation in the production bioreactor. The latest innovations use process intensification to reduce the seed train and ensure the highest possible process consistency while Process Analytical Technologies enable full process control.
▶ Suspension Process
Need | Solution |
---|---|
Adjusting the seed expansion step to production scale relies on fully scalable technologies from process development to manufacturing Intensifying processes are critical to reduce the seed train and decrease cost of production while achieving higher cell concentration The sterility of the seed train relies on a closed process from the shake flask through the rocking motion bioreactor Process Analytical Technologies can ensure the robustness and control of the seed train | Biostat® RM, a fully GMP compliant, wave-mixed bioreactor, is an easy-to-use system for seed expansion offering the widest range of PAT in a Biosafety Level 2 environment
Additional Solutions to Consider:
|
▶ Adherent Process
Need | Solution |
---|---|
Adjusting the seed expansion step to production scale relies on fully scalable technologies from process development to manufacturing Evaluation and implementation of the correct parameters and mixing conditions is critical to avoid cell detachment from the microcarriers and microcarrier breakage The sterility of the seed train relies on a closed process from the shake flask through the rocking motion bioreactor Process Analytical Technologies can ensure the robustness and control of the seed train | Biostat® RM,, a fully GMP compliant, wave-mixed bioreactor, is an easy-to-use system for seed expansion offering the widest range of PAT in a Biosafety Level 2 environment
Additional Solutions to Consider:
|
病毒增殖
病毒增殖
Robust viral vector propagation in vaccine development relies on scalability from process development to production scale manufacturing while ensuring containment in a Biosafety Level 2 environment. The use of Process Analytical Technologies in viral vector applications enables process controls and monitoring to achieve a higher viral vector concentration.
▶ Suspension Process
Need | Solution |
---|---|
Fully scalable technologies, from process development to manufacturing, are needed to take virus propagation to production scale Achieving higher virus concentration while decreasing cost of production relies on process intensification It is imperative to ensure containment and reduce contamination risk while working with infectious viral particles classified as Biosafety Level 2 Process Analytical Technologies in this environment are essential to enable robust processes and infection monitoring and control | Biostat STR® is a single use bioreactor offering the widest range of PAT in a Biosafety Level 2 environment, making it the perfect match for viral production:
Additional Solutions to Consider:
|
▶ Adherent Process
Need | Solution |
---|---|
Fully scalable technologies, from process development to manufacturing, are needed to take viral vector propagation to production scale Evaluation and implementation of the correct parameters and mixing conditions is critical to avoid cell detachment from the microcarriers and microcarrier breakage It is imperative to ensure containment and reduce contamination risk while working with viral vectors, which are live viruses classified as Biosafety Level 2 Process Analytical Technologies in this environment are essential to enable robust processes and infection monitoring and control | The Biostat STR® is a single use bioreactor, offering the widest range of PAT in a Biosafety Level 2 environment, making it the perfect match for viral production:
Additional Solutions to Consider:
|
澄清
澄清
Clarification of viral vectors is a critical step that has a significant impact on product recovery and subsequent downstream purification. The main challenge of viral vector clarification is to recover a high yield of viral vector particles while efficiently removing cell debris, large aggregates and insoluble contaminants.
Clarification of Enveloped Viruses
▶ Suspension Process
Need | Solution |
---|---|
Viral vectors adsorb to depth filters, so it is critical to remove cells or cell debris while maintaining high product recovery Viral vectors are live particles, so containment during processing and disassembling is required to be compliant with Biosafety Level 2/3 requirements Enveloped viral vectors that are larger than 0.2µm make sterile filtration impossible, so the only way to ensure process sterility and operator safety in those circumstances is through pre-sterilized and closed solutions A high capacity clarification solution is needed to address the overall challenges of working with high cell density in a suspension process Enveloped viral vectors are fragile may be damaged by shear exposure during clarification, so low shear solutions are essential to protect the infectious nature of the virus | Ksep® single use centrifuge is the leading single-use centrifuge for clarification from low to high cell density.
Additional Solutions to Consider:
|
▶ Adherent Process
Need | Solution |
---|---|
Viral vectors adsorb to depth filters, so it is critical to remove cells or cell debris while maintaining high product recovery Viral vectors are live particles, so containment during processing and disassembling is required to be compliant with Biosafety Level 2 requirements Enveloped viral vectors that are larger than 0.2µm make sterile filtration impossible, so the only way to ensure process sterility in those circumstances is through pre-sterilized and closed solutions A separation solution dedicated to microcarriers is required in order to remove cells growing on them Enveloped viral vectors are fragile and may be damaged by shear exposure during clarification so low shear solutions are essential to ensure they remain infectiou | Sartopure® PP3 are high capacity pre-filters dedicated to non-intensified processes, providing the highest recovery of viral particles in combination with lowest filtration costs among polypropylene pre-filters available on the market
Additional Solutions to Consider:
|
Clarification of Non-Enveloped Viruses
▶ Suspension Process
Need | Solution |
---|---|
Viral vectors adsorb to depth filters, so it is critical to remove cells or cell debris while maintaining high product recovery Viral vectors are live particles, so containment during processing and disassembling is required to be in compliance with Biosafety Level 2 requirements The significant number of contaminants released during cell lysis including DNA and host cell proteins (HCPs) leads to filter blockage, which can only be mitigated by a high capacity clarification solution A high capacity clarification solution also is needed to address the overall challenges of working with high cell density in a suspension process | Clarification is a challenging unit operation for suspension and lytic viral processes. A single step is often not sufficient and multiple technologies must be tested and combined, including flocculation, filter trains, and single-use centrifugation A wide range of technical approaches can be optimized and sequenced to meet broad product requirements Sartorius offers a range of filters to meet different needs:
|
▶ Adherent Process
Need | Solution |
---|---|
Viral vectors adsorb to depth filters, so it is critical to remove cells or cell debris while maintaining high product recovery Viral vectors are live particles, so containment during processing and disassembling is required to be in compliance with Biosafety Level 2 requirements The significant number of contaminants released during cell lysis including DNA and host cell proteins (HCPs) leads to filter blockage, which can only be mitigated by a high capacity clarification solution A separation solution dedicated to microcarriers is required in order to remove any cells growing on them | Sartopure® PP3 are high capacity pre-filters dedicated to non-intensified processes, providing the highest recovery of viral particles combined with the lowest filtration costs among polypropylene pre-filters available on the market
Additional Solutions to Consider:
|
生物负载减低
生物负载减低
Bioburden reduction relies on membrane filtration of the clarified viral vector in order to protect the subsequent Downstream Unit Operations. A large range of membrane types and potential combinations create options to achieve the highest throughput while maintaining the highest recovery.
Need | Solution |
---|---|
Viral vectors are large particles, and while most of them can be filtered through sterilizing grade filters (0.2µm), some cannot – if the virus is not filterable, it is important to evaluate 0.2µm (sterile filtration) as well as 0,45µm (bioburden reduction) and select fully closed and pre-sterilized technologies for the entire downstream process. Viral vectors tend to adsorb to filters, so it is important to use non-adsorptive membranes as an alternative to maximize recovery Viral vectors are live particles and must be processed in an environment compliant to Biosafety Level 2, so containment is critical | Maxicaps® MR, a ready-to-use, pre-sterilized, pre-assembled and self-contained filtration device allows connection of up to nine capsules in parallel for large-scale filtration operations
Additional Solutions to Consider:
|
Application Data:
浓缩/透析
浓缩/透析
Concentration of viral vectors, contaminant removal and buffer exchange steps are essential steps in all viral vector-based vaccine processing, but these steps can be especially challenging when working with shear-sensitive viral vectors. The latest innovations combine low-shear operations and fully closed processing to allow the highest recovery with full containment – creating an ideal environment for viral vector manufacturing.
Need | Solution |
---|---|
Viral vectors are large particles that are easy to separate from small contaminants. The optimization of the operating conditions should consider the benefit of contaminant removal (host cell proteins, DNA) which requires large molecular weight cut-off membrane cassettes and high throughput process development systems Some viral vectors are larger than 0.2µm and cannot be sterile filtered, so those circumstances require closed & sterile environments Viral vectors are live viruses that must be compliant to Biosafety Level 2, so containment is critical The significant number of contaminants including DNA and host cell proteins in addition to viral vectors adsorb to membranes, prompting the need for low-adsorption membranes Enveloped viral vectors are fragile and may be damaged by shear exposure, so low shear systems and optimal cassette designs need to be used. | Hydrosart®, a state-of-the-art crossflow membrane designed for low adsorption of viral vectors has the benefit of resistance to chemicals, steam, heat and gamma-irradiation, allowing a wide range of operating conditions for viral-vector based vaccines
Additional Solutions to Consider:
|
Application Data:
病毒捕获层析
病毒捕获层析
Viral vector capture is a critical step in the Downstream process, removing the majority of contaminants while concentrating the viral vectors. Innovative chromatography membrane formats eliminate barriers to scalability and allow implementation of high capacity membranes at very large scale.
Need | Solution |
---|---|
Viral vectors are large particles that cannot diffuse into chromatography beads, and can be trapped in small pores leading to low recovery during elution, requiring alternatives to traditional bead-based chromatography media Addressing an array of viral vectors requires a wide range of chromatography media and operating conditions with screening to ensure both highest capacity and highest recovery of infectious particles, so high throughput screening tools and a variety of chromatography ligands are needed Some viral vectors are larger than 0.2µm and cannot be sterile filtered, so those circumstances require closed & pre-sterilized systems Viral vectors are live particles and must be processed in an environment compliant to Biosafety Level 2, so containment is critical | Sartobind® 8mm chromatography membranes offer the widest range of ligands and a unique cassette scale-up solution up to 100L of membrane volume, ideal for viral vector purification in bind and elute mode
Additional Solutions to Consider:
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Application data:
- Optimizing Adenovirus Purification Processes Using Sartobind® Q and STIC PA anion exchange membranes
- Poster: Implementation of a Process-Scale Adenovirus Purification with a Single-Use Platform
- Membrane Chromatography Cassettes for Bind & Elute Applications of Viruses and Large Proteins
精纯层析
精纯层析
A second step of chromatography for polishing might be required to remove remaining contaminants, such as DNA and HCP. Membrane adsorbers allow the easy implementation of this secondary chromatography step in a fully contained format.
Need | Solution |
---|---|
Viral vector processes can lead to cell lysis, releasing a significant number of contaminants including DNA that has to be removed in downstream processes without impact on the overall virus recovery – something that can be achieved through high recovery chromatographic solutions for polishing in flowthrough mode Viral vectors are large particles that can be trapped in small pores, leading to low recovery during flowthrough operations, requiring alternatives to traditional bead-based chromatography media Addressing an array of viral vectors requires a wide range of chromatography media and operating conditions with screening to ensure both maximum levels of impurity removal and highest recovery of infectious particles, so high throughput screening tools and diverse chromatography ligands are needed. Some viral vectors are larger than 0.2µm and cannot be sterile filtered, so those circumstances require closed & pre-sterilized systems Viral vectors are live particles and must be processed in an environment compliant to Biosafety Level 2, so containment is critical | Sartobind® 4mm chromatography membranes offer the widest range of ligands and a unique cassette scale-up solution up to 100L of membrane volume, ideal for contaminant removal in flowthrough mode
Additional Solutions to Consider:
|
Application Data:
- Optimizing Adenovirus Purification Processes Using Sartobind® Q and STIC PA anion exchange membranes
- Poster: Implementation of a Process-Scale Adenovirus Purification with a Single-Use Platform
- Rational Development of Two Flowthrough Purification Strategies for Adenovirus Type 5 and Retro Virus-Like Particles
浓缩/透析
浓缩/透析
Concentration of viral vectors, contaminant removal and buffer exchange steps are essential steps in all viral vector-based vaccine processing, but these steps can be especially challenging when working with shear-sensitive viral vectors. The latest innovations combine low-shear operations and fully closed processing to allow the highest recovery with full containment – creating an ideal environment for viral vector manufacturing.
Need | Solution |
---|---|
Viral vectors are large particles that are easy to separate from small contaminants. The optimization of the operating conditions should consider the benefit of contaminant removal (host cell proteins, DNA) which requires large molecular weight cut-off membrane cassettes and high throughput process development systems Some viral vectors are larger than 0.2µm and cannot be sterile filtered, so those circumstances require closed & sterile environments Viral vectors are live viruses that must be compliant to Biosafety Level 2, so containment is critical The significant number of contaminants including DNA and host cell proteins in addition to viral vectors adsorb to membranes, prompting the need for low-adsorption membranes Enveloped viral vectors are fragile and may be damaged by shear exposure, so low shear systems and optimal cassette designs need to be used. | Hydrosart®, a state-of-the-art crossflow membrane designed for low adsorption of viral vectors has the benefit of resistance to chemicals, steam, heat and gamma-irradiation, allowing a wide range of operating conditions for viral-vector based vaccines
Additional Solutions to Consider:
|
Application Data:
除菌过滤
除菌过滤
The final sterile filtration step is critical to prevent microbial contamination and ensure patient safety. Innovative risk mitigation strategies ensure safety of the complete solution, from sterile filtration to storage in single-use bags.
Need | Solution |
---|---|
Viral vectors are large particles, and while most of them can be filtered through sterilizing grade filters (0.2µm), some cannot. It is critical to evaluate 0.2µm (sterile filtration) as well as 0,45µm (bioburden reduction) and select fully closed and pre-sterilized technologies across the entire downstream process if a viral vector is not filterable Viral vectors adsorb to filters, so it is important to use non-adsorptive membranes as an alternative to maximize recovery Viral vectors are live particles and must be processed in an environment compliant to Biosafety Level 2, so containment is critical | Helium supplier integrity test and point-of-use leak test with Sartocheck® is the best risk mitigation strategy across the single-use bag portfolio, offering assurance of integrity when containment and product sterility are critical
Additional Solutions to Consider:
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其他技术
病毒载体定量,即在规定体积内测量病毒载体颗粒浓度,是开发病毒载体时所需要的宝贵信息,需要尽可能接近实时测量值。现有的技术均有局限性,因此需要采用互补性的新技术来确保快速且准确的定量。
需求 | 解决方案 |
---|---|
病毒传染性测试需要几天或几周的时间才能获得结果,因此,需要快速的检测分析来解决这一重要挑战 ELISA和PCR法比传染性测试更快,但由于它们测量病毒的组成部分并从这些数字中得出总滴度,误差变异性的发生率更高,因此需要替代的、可靠的分析方法 一般情况下需要现成的分析结果,但ELISA和PCR的开发和确认需要花费时间,才能确保方法的稳健性 病毒载体工艺开发和制造期间会生成大量的病毒样本,需要有更简单的工作流程,才能快速定量病毒样本 | Virus Counter®平台是一种独特、快速的病毒定量方法,它也是唯一一个能够直接量化已组装的病毒(蛋白质和核酸),实时进行分析的系统
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应用数据:
- 在Virus Counter® 3100上使用基于抗体检测的快速、实时定量慢病毒颗粒
- 具有高致病性潜力的病毒家族的快速总颗粒定量
先进的化学计量学方法,例如实验设计(DOE)和多变量数据分析(MVDA)为数据提供了广泛的可视性,除了节约成本外,最终还能提高工艺可靠性和稳健性
需求 | 解决方案 |
---|---|
质量源于设计(QbD)依赖于DoE来了解关键工艺参数,而后者取决于很多实验的实施——这个工具可帮助设计和计划实验,以帮助减轻负担 工艺分析技术产生了大量难以分析的数据,因此对评价历史数据的工具的需求巨大,以便识别相关性、进行故障排除并获得工艺理解 大多数病毒载体开发和生产人员并不是统计学家,而是依赖于用户友好型界面和软件 | Umetrics®套件包括三个专为工艺开发和生产人员设计的软件,其易于使用且界面直观,可通过独特的数据可视化、大量的向导模块和可定制绘图功能为数据分析提供支持,从而最大限度地提高可用性和通用性
这些软件解决方案在大多数赛多利斯系统中完全集成,并可用作单机程序 |
Application Data:
随着一次性技术的不断发展,集成了一次性传感器的一次性技术不仅实现了实时数据收集和分析,还提高了过程效率,降低了污染风险,提高了操作人员的安全性,并提高了整体滴度
需求 | 解决方案 |
---|---|
病毒载体制造商想要更好地理解并控制其工艺,这些工艺非常复杂而且受到高度监管,但是这样做需要实时测量关键工艺参数,以允许工艺监测、设定值控制(进料控制和出料控制)、事件时间点预测(收获和感染)以及工艺偏差的及时识别 需要一系列的PAT传感器,以有效应用QbD原则,并确保产品质量和数量的一致性,快速识别和纠正工艺偏差,以降低批次丢失的风险 将PAT集成至一次性系统中的能力将降低采样期间的泄露和污染风险 | BioPAT®工具箱是一系列完全合格的一次性传感器,其整合在赛多利斯产品组合中,使得赛多利斯成为PAT领域的市场领导者
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应用数据:
- 使用BioPAT®ViaMass在线活细胞密度测量的微载体病毒疫苗工艺的控制和放大
基于腺病毒的疫苗
腺病毒是经常用作病毒载体的非包膜DNA病毒,具备大量优势:
- 易于进行基因操控
- 非复制性
- 可接受较大转基因DNA插入
- 能产生稳健的转基因特异性T和B响应
其最初被评价为基因治疗载体,但现在大多应用在疫苗以及溶瘤病毒。今天,有50%以上基于病毒载体的疫苗在使用腺病毒。市场上销售的首个基于腺病毒的疫苗是埃博拉病毒疫苗。
我们诚邀您了解赛多利斯专用于病毒载体生产和纯化的技术解决方案。在您探索我们的通用腺病毒工艺概览时,您可点击每个步骤,查看制造商在腺病毒工作中面临的挑战——并了解赛多利斯如何提供独特的解决方案来满足这些需求。您还将看到有关工艺步骤的相关文献。
腺病毒疫苗
细胞系/菌株选择
细胞系/菌株选择
Selecting cell lines and strains that produce commercially acceptable yields can be difficult and labor-intensive. Proper high throughput development tools — or a capable partner who has access to those tools — allow operators to confidently select a stable and safe cell line.
Need | Solution |
---|---|
Selecting the optimum cell line or clone for the adenovirus relies on low-volume screening tools and fast analytics Fully scalable HTPD tools and inline analytics are needed to quickly define the best operating conditions for cell expansion (media selection, process parameters optimization) and adenovirus propagation (media, feed, multiplicity of infection, time of infection, harvest time, etc.) Many in industry are moving away from serum-containing media in favor of chemically defined (CD) media in an effort to support process safety and batch consistency. Ultimately, having an experienced partner capable of providing the characterization tools for the cell line is the way to select a stable and safe cell line (usually HEK293) with confidenc | The flexibility and functionality of Ambr® 15 & Ambr® 250 can accelerate cell line selection and process optimization. Ambr® is the only high-throughput cell culture and bioreactor system with scalable, multiparallel, automated functionality
Additional Solutions to Consider:
|
种子扩增
种子扩增
Seed expansion from cell bank to production bioreactor must be successfully achieved before the viral vector propagation in the production bioreactor. The latest innovations use process intensification to reduce the seed train and ensure the highest possible process consistency while Process Analytical Technology enables full process control.
Need | Solution |
---|---|
Adjusting the seed propagation step to production scale relies on fully scalable technologies from process development to manufacturing Intensifying processes are critical to reduce the seed train and decrease cost of production while achieving higher cell concentration The sterility of the seed train relies on a closed process from the shake flask through the rocking motion bioreactor Process Analytical Technologies can ensure the robustness and control of the seed train | Biostat® RM, a fully GMP compliant, wave-mixed bioreactor, is an easy-to-use system for seed expansion offering the widest range of PAT in a Biosafety Level 2 environment
Additional Solutions to Consider:
|
病毒增殖
病毒增殖
Robust viral vector propagation in vaccine development relies on scalability from process development to production scale manufacturing while ensuring containment in a Biosafety Level 2 environment. The use of Process Analytical Technologies in viral vector applications enables process controls and monitoring to achieve a higher viral vector concentration.
Need | Solution |
---|---|
Fully scalable technologies, from process development to manufacturing, are needed to take virus propagation to production scale Achieving higher adenovirus concentration while decreasing cost of production relies on process intensification It is imperative to ensure containment and reduce contamination risk while working with infectious viral particles classified as Biosafety Level 2, such as adenoviruses Process Analytical Technologies in this environment are essential to enable robust process and infection monitoring and control | Biostat STR® is a single use bioreactor offering the widest range of PAT in a Biosafety Level 2 environment, making it the perfect match for viral vector production:
Additional Solutions to Consider:
|
澄清
澄清
Clarification of viral vectors is a critical step that has a significant impact on product recovery and subsequent downstream purification. The main challenge of viral vector clarification is to recover a high yield of viral vector particles while efficiently removing cell debris, large aggregates and insoluble contaminants.
Need | Solution |
---|---|
Adenoviruses tend to adsorb to depth filters, so it is critical to remove cells or cell debris while maintaining high product recovery Adenoviruses are live virus particles, so containment during processing and disassembling is required to be in compliance with Biosafety Level 2 requirements The significant number of contaminants released during cell lysis including DNA and host cell proteins (HCPs) leads to filter blockage, which can only be mitigated by a high capacity clarification solution High capacity clarification solution also is needed to address the overall challenges of working with high cell density in a suspension process | Clarification is a challenging unit operation for suspension and lytic viral processes. A single step is often not sufficient and multiple technologies must be tested and combined, including flocculation, filter trains, and single-use centrifugation A wide range of technical approaches can be optimized and sequenced to meet broad product requirements Sartorius offers a range of filters to meet different needs:
|
生物负载减低
生物负载减低
Bioburden reduction relies on membrane filtration of the clarified viral vector in order to protect the subsequent Downstream Unit Operations. A large range of membrane types and potential combinations create options to achieve the highest throughput while maintaining the highest recovery.
Need | Solution |
---|---|
Adenovirus particles tend to adsorb to filters, so it is important to use non-adsorptive membranes as an alternative to maximize recovery Adenoviruses are live particles must be processed in an environment compliant to Biosafety Level 2, so containment is critical | Maxicaps® MR, a ready-to-use, pre-sterilized, pre-assembled and self-contained filtration device allows connection of up to nine capsules in parallel for large-scale filtration operations
Additional Solutions to Consider:
|
Application Data:
浓缩/透析
浓缩/透析
Concentration of viral vectors, contaminant removal and buffer exchange steps are essential steps in all viral vector-based vaccine processing, but these steps can be especially challenging when working with shear-sensitive viral vectors. The latest innovations combine low-shear operations and fully closed processing to allow the highest recovery with full containment – creating an ideal environment for viral vector manufacturing.
Need | Solution |
---|---|
Adenoviruses are large particles that are easy to separate from small contaminants. The optimization of the operating conditions should consider the benefit of contaminant removal (host cell proteins, DNA) which requires large molecular weight cut-off membrane cassettes and high throughput process development systems Adenoviruses are live particles that must be processed in an environment compliant to Biosafety Level 2, so containment is critical The significant number of contaminants including DNA and host cell proteins in addition to adenovirus can foul filter membranes prompting the need for low-adsorption membranes | Hydrosart®, a state-of-the-art crossflow membrane designed for low adsorption of viral vectors has the benefit of resistance to chemicals, steam, heat and gamma-irradiation, allowing a wide range of operating conditions for viral vector-based vaccines
Additional Solutions to Consider:
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Application Data:
病毒捕获层析
病毒捕获层析
Viral vector capture is a critical step in the Downstream process, removing the majority of contaminants while concentrating the viral vectors. Innovative chromatography membrane formats eliminate barriers to scalability and allow implementation of high capacity membranes at very large scale.
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Adenoviruses are large particles that cannot diffuse into chromatography beads, and can be trapped in small pores leading to low recovery during elution, requiring alternatives to traditional bead-based chromatography media Purification of adenoviruses require operating conditions with screening to ensure both highest capacity and highest recovery of infectious particles on anion exchangers, so high throughput screening tools are needed Adenoviruses are live particles that must be processed in an environment compliant to Biosafety Level 2, so containment is critical | Sartobind® 8mm chromatography membranes, designed for adenovirus purification in bind and elute mode, offer the widest range of ligands and a unique cassette scale-up solution up to 100L of membrane volume
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精纯层析
精纯层析
A second step of chromatography for polishing might be required to remove remaining contaminants, such as DNA and HCP. Membrane adsorbers allow the easy implementation of this secondary chromatography step in a fully contained format.
Need | Solution |
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Adenovirus processes lead to cell lysis, releasing a significant number of contaminants including DNA that has to be removed in downstream processes without impact on the overall adenovirus recovery – something that can be achieved through high recovery chromatographic solutions for polishing in flowthrough mode Adenoviruses are large particles can be trapped in small pores leading to low recovery during elution, requiring alternatives to traditional bead-based chromatography media Purification of adenoviruses requires a wide range of chromatography media and operating conditions with screening to ensure both highest impurity removal and highest recovery of infectious particles, so high throughput screening tools and diverse chromatography ligands are needed Adenoviruses are live particles that must be processed in an environment compliant to Biosafety Level 2, so containment is critical | Sartobind® 4mm chromatography membranes offer the widest range of ligands and a unique cassette scale-up solution up to 100L of membrane volume, ideal for contaminant removal in flowthrough mode
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Application Data:
- Optimizing Adenovirus Purification Processes Using Sartobind® Q and STIC PA anion exchange membranes
- Implementation of a Process-Scale Adenovirus Purification with a Single-Use Platform
- Rational Development of Two Flowthrough Purification Strategies for Adenovirus Type 5 and Retro Virus-Like Particles
浓缩/透析
浓缩/透析
Concentration of viral vectors, contaminant removal and buffer exchange steps are essential steps in all viral vector-based vaccine processing, but these steps can be especially challenging when working with shear-sensitive viral vectors. The latest innovations combine low-shear operations and fully closed processing to allow the highest recovery with full containment – creating an ideal environment for viral vector manufacturing.
Need | Solution |
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Adenoviruses are large particles that are easy to separate from small contaminants. The optimization of the operating conditions should consider the benefit of contaminant removal (host cell proteins, DNA) which requires large molecular weight cut-off membrane cassettes and high throughput process development systems Adenoviruses are live particles that must be processed in an environment compliant to Biosafety Level 2, so containment is critical The significant number of contaminants including DNA and host cell proteins in addition to adenovirus can foul filter membranes prompting the need for low-adsorption membranes | Hydrosart®, a state-of-the-art crossflow membrane designed for low adsorption of viral vectors has the benefit of resistance to chemicals, steam, heat and gamma-irradiation, allowing a wide range of operating conditions for viral vector-based vaccines
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Application Data:
除菌过滤
除菌过滤
The final sterile filtration step is critical to prevent microbial contamination and ensure patient safety. Innovative risk mitigation strategies ensure safety of the complete solution, from sterile filtration to storage in single-use bags.
Need | Solution |
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Adenovirus particles tend to adsorb to filters, so it is important to use non-adsorptive membranes as an alternative to maximize recovery Adenoviruses are live particles that must processed in an environment compliant to Biosafety Level 2, so containment is critical | Helium supplier integrity test and point-of-use leak test with Sartocheck® is the best risk mitigation strategy across the single-use bag portfolio, offering assurance of integrity when containment and product sterility are critical
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其他技术
先进的化学计量学方法,例如实验设计(DOE)和多变量数据分析(MVDA),最大限度可视化数据,不仅能节约成本外,同时还能提高工艺的可靠性和稳健性。
需求 | 解决方案 |
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质量源于设计(QbD)依赖于DoE来了解关键工艺参数,而后者取决于很多实验的实施——这个工具可帮助设计和计划实验,以帮助减轻负担 PAT会生成大量难以分析的数据,因此,用于评价历史数据的工具的需求大幅增长,旨在识别相关性、排除故障并对工艺有深入的理解 大多数疫苗开发和生产人员并不是统计学家,而是依赖于用户友好型界面和软件 | Umetrics®套件包括三个专为工艺开发和生产人员设计的软件,其易于使用且界面直观,可通过独特的数据可视化、大量的向导模块和可定制绘图功能为数据分析提供支持,从而最大限度地提高可用性和通用性。
这些软件选项完全集成在大多数赛多利斯系统中,并可作为单机程序使用 |
随着一次性技术的不断发展,集成了一次性传感器的一次性技术不仅实现了实时数据收集和分析,还提高了过程效率,降低了污染风险,提高了操作人员的安全性,并提高了整体滴度
需求 | 解决方案 |
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Viral vector-based vaccine manufacturers want to better understand and control their processes, which are very complex and highly regulated, but to do so requires real-time measurement of critical process parameters to allow process monitoring, set-point control (feed control and bleed control), event time point predictions (harvest and infection) and timely identification of process deviations A range of PAT sensors would be required to effectively apply QbD principles and ensure consistency in product quality and quantity, quickly identifying and correcting process deviations to reduce the risk of lost batches The ability to integrate PAT into single-use systems would mitigate risk of spillages and contamination during sampling | BioPAT® toolbox, an expending range of fully qualified single-use sensors, are integrated across the Sartorius portfolio making Sartorius the market leader for PAT
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