Naive Non-human Primate Whole Bone Marrow Aspirate (Rhesus)Non human Primates (NHP) are the closest phylogenic relatives to man. They are often indispensable in biomedical and psychological research. The rhesus monkey is the most widely used laboratory primate. They are a small, Asian old world monkey which are often used in research due to ease of rearing in captivity. Rhesus monkeys can thrive in a variety of climates and habitats. They measure about 4764 cm (1925 inches) long, excluding the furry 2030 cm

such undifferentiated cells can be sorted out

Additionally

In 'Leucocyte typing 111: White cell differentiation antigens

Hopkinson A (Jun 2014)

20 million

The CD19 gene encodes a cell surface molecule that assembles with the antigen receptor of B lymphocytes in order to decrease the threshold for antigen receptor-dependent stimulation

Tenen DG (Apr 1992)

express CD19 from very early stages

Peripheral Blood Mononuclear Cells (PBMCs) are blood cells with a single round nucleus

pharmacology

NK cells constitute approximately 2–18% of peripheral blood mononuclear cells (PBMCs) and play essential roles in early defense against viral infections and tumor formation

central and effector memory T cells gain expression of CD45RO and lose expression of CD45RA