Ki-67 staining for determination of rhesus macaque T cell proliferative responses ex vivo

(c) 2010 International Society for Advancement of Cytometry..

The capacity for robust proliferation upon re-infection is a hallmark of adaptive immunity and the basis of vaccination. A widely used animal model for the study of human disease is the rhesus macaque (RM), where capacity for proliferation can be assessed ex vivo using carboxyfluorescein succinimidyl ester (CFSE)-based dilution assays. However, we show over the course of the standard ex vivo proliferation assay that CFSE-labeling at commonly used dye concentrations induces significant cell death, but that this phenomenon is dose-dependent. Here, we describe an alternative semiquantitative method for estimating T cell proliferative responses that avoids the putative biases associated with chemical modification. RM peripheral blood mononuclear cells were stimulated ex vivo with cognate peptides for 5 days, immunostained for intracellular Ki-67, and then analyzed by flow cytometry. We describe a gating strategy using Ki-67 and side light scatter, also a marker of blastogenesis, which correlates strongly with data from CFSE dilution. We show that this method is a valid tool for measuring RM antigen-specific cellular proliferation ex vivo and can be used as an alternative to CFSE dilution assays.

Medienart:

E-Artikel

Erscheinungsjahr:

2010

Erschienen:

2010

Enthalten in:

Zur Gesamtaufnahme - volume:77

Enthalten in:

Cytometry. Part A : the journal of the International Society for Analytical Cytology - 77(2010), 3 vom: 01. März, Seite 275-84

Sprache:

Englisch

Beteiligte Personen:

Shedlock, Devon J [VerfasserIn]
Talbott, Kendra T [VerfasserIn]
Morrow, Matthew P [VerfasserIn]
Ferraro, Bernadette [VerfasserIn]
Hokey, David A [VerfasserIn]
Muthumani, Karuppiah [VerfasserIn]
Weiner, David B [VerfasserIn]

Links:

Volltext

Themen:

5-(6)-carboxyfluorescein diacetate succinimidyl ester
Antigens
Coloring Agents
Fluoresceins
Journal Article
Ki-67 Antigen
Research Support, N.I.H., Extramural
Research Support, Non-U.S. Gov't
Succinimides

Anmerkungen:

Date Completed 04.06.2010

Date Revised 20.10.2021

published: Print

Citation Status MEDLINE

doi:

10.1002/cyto.a.20857

funding:

Förderinstitution / Projekttitel:

PPN (Katalog-ID):

NLM194641988