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Differentiating Feline T and B Lymphocytes by Rosette Formation

From the University of Hawaii, Honolulu, Hawaii 96822

Abstract

The number of bone marrow-derived and thymus-dependent lymphocytes in the peripheral blood of felines was assessed. Feline bone marrow-derived lymphocytes were determined by erythrocyte antibody complement (EAC)-rosette formation and membrane immunofluorescence. A good correlation was observed between the cells forming EAC-rosettes (mean of 40.2 ± 9.7%) and those possessing membrane immunoglobulins (mean of 45.3 ± 4.1%).

Feline thymus-dependent lymphocytes form non-immune (E)-rosettes with rodent erythrocytes (mouse, rat, guinea pig) but not with erythrocytes from humans, monkeys, dogs, mongooses, chickens, rabbits, sheep, and hamsters. An average of 32.3 ± 9.2% of the peripheral blood lymphocytes of cats formed rosettes with guinea pig erythrocytes. Antibody blocking, cytotoxicity, and mix-rosette studies demonstrated that guinea pig red blood cells bind specifically to T lymphocytes. Of feline peripheral blood lymphocytes, 41.0 ± 7.5% showed fluorescent staining with fluorescein-labeled rabbit anti-cat thymus antiserum.

Footnotes

¹ Zoology Department, Edmondson Hall.

² Department of Pathology, School of Medicine.

³ Comparative Medicine, School of Medicine.

This article has been cited by other articles:

				N. Gengozian, R. E. Hall, and C. E. Whitehurst Erythrocyte-Rosetting Properties of Feline Blood Lymphocytes and Their Relationship to Monoclonal Antibodies to T Lymphocytes Experimental Biology and Medicine, October 1, 2002; 227(9): 771 - 778. [Abstract] [Full Text] [PDF]