Memory CD4+ T cells are “experienced” T cells that lie dormant in tissues and protect the body from the re-emergence of potentially pathogenic or harmful cells (such as bacteria, viruses, cancer cells). Because memory CD4+ T cells have encountered their antigen in a previous infection, memory T cells can mount a faster and stronger response the second time around.
Memory CD4+ T cells
Our memory CD4+ T cells are collected at FDA-licensed donor centers and further processed at our cell isolation laboratory. Memory CD4+ T cells are isolated from PBMCs using negative immunomagnetic cell separation procedures. Each product is characterized by flow cytometry to ensure a highly pure and viable cell population. All donors are tested for HIV, Hepatitis B and C, WNV, CMV, and other blood-borne pathogens.
All biospecimens are obtained from properly consented donors. We conform to HIPAA standards to protect the privacy of the donor’s personal health information.
Human Material Precaution
It is best to use caution when handling any human cells. We recommend all human cells should be handled as if potentially infectious following biosafety level 2 procedures.
Even with infectious virus assays or viral antigen assays, a negative test result may leave open the possible existence of latent viruses.