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ATCC virus reference materials are relisted! VR-1516 is now available for purchase!

Time:2024-03-29
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preface


Accurately determining dosage and efficacy is crucial for patient safety when evaluating gene therapy based on novel viral vectors. Highly characterized virus reference materials provide standardized benchmark tools for specific laboratory calibration reference standards and vector titers, and facilitate inter laboratory data comparison.


ATCC supports this demand by providing internationally recognized virus reference materials, thereby achieving standardization of quantitative techniques among different organizations.


At present, ATCC virus reference materials have been relisted, and products such as VR-1516 can be purchased immediately!


VR-1516 product, ordering quantity is no longer limited!


Order virus reference materials from today onwards

End users can enjoy a 15% discount immediately


The new reference material VR-1516 inventory will be produced and identified by ATCC, and will no longer be produced and stored by the original storage unit. Due to some differences in production and manufacturing between the new batch and the original batch from 2001, there have been some changes in the reference materials compared to the previous batch.


You can visit the following website to view the comparison results:

https://www.atcc.org/microbe-products/virology/viral-reference-materials/adenovirus-type-5-reference-material-new-lots


Virus reference material related products

Item number

Description

Introduction

VR-1516

Human adenovirus 5;Strain: Adenoid 75

人類5型腺病毒參考材料

VR-1616

rAAV2 RSS; Reference Material

腺相關病毒血清2型參考標準材料

VR-1816

rAAV8 RSS Reference Material

腺相關病毒血清8型參考標準材料

VR-3382

Lentivirus Vector Reference Materia

慢病毒載體參考材料即將上架


The ATCC virus reference material has distinct features and provides a large number of relevant documents on its development, validation, and measurement, with the following characteristics.

01 High standard identification and purity verification 

02 Quantitative infection titer and particle concentration 

03 Free from impurities, interference factors, endotoxins, and mycoplasma 

04 Provide stability data



background knowledge

Background

 Adeno associated virus

Adeno Associated Virus (AAV) belongs to the family Microviridae and is a type of icosahedral parvovirus that cannot replicate autonomously and has no envelope. It is cuhhently the simplest single stranded DNA replication defective virus discovered. 

About 50 years ago, it was first described as a pollutant in adenovirus preparations, hence the name adeno-associated virus (Atchison et al., 1965). There are many serotypes of adeno-associated viruses (AAV1-AAV12), and different serotypes have different affinities for tissues or organs.


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AAV genome and its encoded proteins(Eloise Hudry, et al,Neuron,2019)


The recombinant adeno-associated virus (rAAV) vector cuhhently used in clinical research is a gene vector modified from non pathogenic wild-type AAV. RAAV can be used to transfer exogenous genes into animal tissues and cells. Due to its diverse species, extremely low immunogenicity, high safety, wide host cell range, strong diffusion ability, and long in vivo gene expression time, rAAV is considered one of the most promising gene research and gene therapy vectors. 

In clinical practice, AAV is widely used in ophthalmic diseases, neurological diseases, metabolic diseases, and genetic modification fields, and is one of the safest viral vectors approved by the FDA for gene therapy drugs.


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Adeno-associated virus (AAV) recombinant vectors are important vectors for clinical gene therapy and other applications. Developing globally available AAV reference standard materials (RSMs) provides quantitative and standardized technical references for research and manufacturing organizations. 

AAV RSMs are intended to be used as internationally recognized standards for calibrating reference materials for specific internal products. 

ATCC can provide adenovirus serotype 2 reference standard material (AAV2 RSM): ATCC VR-1616, and adenovirus serotype 8 reference standard material (AAV8 RSM): ATCC VR-1816. Both are stored at ATCC by the Adenovirus Reference Standards Working Group (AAV2RSWG and AAV8RSWG).

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