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. 1990 Nov;71(3):442–448.

Lymphocyte activation and expression of the human leucocyte-endothelial cell adhesion molecule 1 (Leu-8/TQ1 antigen).

C Bührer 1, C Berlin 1, H G Thiele 1, A Hamann 1
PMCID: PMC1384446  PMID: 1702752

Abstract

The Leu-8/TQ1 antigen, recently shown to be the human equivalent of the murine MEL-14 lymph node homing receptor and now designated as leucocyte-endothelial cell adhesion molecule, LECAM-1, has been used to dissect T, B and natural killer (NK) cells into various subpopulations with different functional properties, such as suppressor-inducer (CD4+ Leu-8/TQ1+) or helper (CD4+ Leu-8/TQ1-) T lymphocytes. Diminished Leu-8/TQ1 antigen density has been reported after lymphocyte activation with B- or T-cell specific stimuli for several days. In the present study, we sought to determine the signal requirements for altered Leu-8/TQ1 expression. Exposure of freshly isolated peripheral blood lymphocytes to phorbol 12-myristate 13-acetate (PMA) and/or calcium ionophores was found to cause rapid down-regulation of the Leu-8 antigen, with little or no Leu-8 reactivity remaining 1 hr after simultaneous addition of PMA and calcium ionophores to the culture medium. TQ1 reactivity was changed in parallel with that of Leu-8. Leu-8 expression of T and B cells was sensitive to both PMA and calcium ionophores, whereas Leu-8 expression of NK cells was affected by PMA but not by the calcium ionophore A23187. The effect of PMA on Leu-8/TQ1 expression could be antagonized by pretreatment with the protein kinase C inhibitor, H7, whereas that of A23187 could not. Partial re-expression of the Leu-8 antigen was seen 3 days after addition of PMA alone but not when it was given together with calcium ionophores. After Leu-8 down-regulation induced by 1 hr treatment with PMA or calcium ionophores. Leu-8 re-expression was observed within 24 hr when stimuli were removed by washing. Activation of T cells with anti-CD3 antibody resulted in a partial reduction of Leu-8/TQ1 expression, first detectable after 1-3 hr of stimulation and maximal at 24 hr. Fully mitogenmic concentrations of concanavalin A (Con A) did not affect Leu-8 expression within the first hours of culture. Transient reduction of Leu-8 expression was seen 24 hr after supraoptimal dosages of Con A, but Con A-stimulated lymphocytes cultured for 4-12 days with interleukin-2 (IL-2) retained Leu-8/TQ1 reactivity to a similar degree as fresh cells. In contrast to Leu-8/TQ1, CD45RA expression was not altered after 1 hr treatment with PMA and/or calcium ionophores but gradually disappeared during 1 week after Con A stimulation.(ABSTRACT TRUNCATED AT 400 WORDS)

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Selected References

These references are in PubMed. This may not be the complete list of references from this article.

  1. Akbar A. N., Terry L., Timms A., Beverley P. C., Janossy G. Loss of CD45R and gain of UCHL1 reactivity is a feature of primed T cells. J Immunol. 1988 Apr 1;140(7):2171–2178. [PubMed] [Google Scholar]
  2. Butcher E. C. The regulation of lymphocyte traffic. Curr Top Microbiol Immunol. 1986;128:85–122. doi: 10.1007/978-3-642-71272-2_3. [DOI] [PubMed] [Google Scholar]
  3. Castagna M., Takai Y., Kaibuchi K., Sano K., Kikkawa U., Nishizuka Y. Direct activation of calcium-activated, phospholipid-dependent protein kinase by tumor-promoting phorbol esters. J Biol Chem. 1982 Jul 10;257(13):7847–7851. [PubMed] [Google Scholar]
  4. Clark E. A., Ledbetter J. A. Leukocyte cell surface enzymology: CD45 (LCA, T200) is a protein tyrosine phosphatase. Immunol Today. 1989 Jul;10(7):225–228. doi: 10.1016/0167-5699(89)90257-0. [DOI] [PubMed] [Google Scholar]
  5. Crabtree G. R. Contingent genetic regulatory events in T lymphocyte activation. Science. 1989 Jan 20;243(4889):355–361. doi: 10.1126/science.2783497. [DOI] [PubMed] [Google Scholar]
  6. Gatenby P. A., Kansas G. S., Xian C. Y., Evans R. L., Engleman E. G. Dissection of immunoregulatory subpopulations of T lymphocytes within the helper and suppressor sublineages in man. J Immunol. 1982 Nov;129(5):1997–2000. [PubMed] [Google Scholar]
  7. Hamann A., Jablonski-Westrich D., Scholz K. U., Duijvestijn A., Butcher E. C., Thiele H. G. Regulation of lymphocyte homing. I. Alterations in homing receptor expression and organ-specific high endothelial venule binding of lymphocytes upon activation. J Immunol. 1988 Feb 1;140(3):737–743. [PubMed] [Google Scholar]
  8. Hamann A., Thiele H. G. Molecules and regulation in lymphocyte migration. Immunol Rev. 1989 Apr;108:19–44. doi: 10.1111/j.1600-065x.1989.tb00011.x. [DOI] [PubMed] [Google Scholar]
  9. Huang K., Im S. Y., Samlowski W. E., Daynes R. A. Molecular mechanisms of lymphocyte extravasation. III. The loss of lymphocyte extravasation potential induced by pertussis toxin is not mediated via the activation of protein kinase C. J Immunol. 1989 Jul 1;143(1):229–238. [PubMed] [Google Scholar]
  10. Kanof M. E., James S. P. Leu-8 antigen expression is diminished during cell activation but does not correlate with effector function of activated T lymphocytes. J Immunol. 1988 Jun 1;140(11):3701–3706. [PubMed] [Google Scholar]
  11. Kansas G. S., Wood G. S., Engleman E. G. Maturational and functional diversity of human B lymphocytes delineated with anti-Leu-8. J Immunol. 1985 May;134(5):3003–3006. [PubMed] [Google Scholar]
  12. Kansas G. S., Wood G. S., Fishwild D. M., Engleman E. G. Functional characterization of human T lymphocyte subsets distinguished by monoclonal anti-leu-8. J Immunol. 1985 May;134(5):2995–3002. [PubMed] [Google Scholar]
  13. Kishimoto T. K., Jutila M. A., Berg E. L., Butcher E. C. Neutrophil Mac-1 and MEL-14 adhesion proteins inversely regulated by chemotactic factors. Science. 1989 Sep 15;245(4923):1238–1241. doi: 10.1126/science.2551036. [DOI] [PubMed] [Google Scholar]
  14. Kishimoto T. K., Jutila M. A., Butcher E. C. Identification of a human peripheral lymph node homing receptor: a rapidly down-regulated adhesion molecule. Proc Natl Acad Sci U S A. 1990 Mar;87(6):2244–2248. doi: 10.1073/pnas.87.6.2244. [DOI] [PMC free article] [PubMed] [Google Scholar]
  15. Lanier L. L., Loken M. R. Human lymphocyte subpopulations identified by using three-color immunofluorescence and flow cytometry analysis: correlation of Leu-2, Leu-3, Leu-7, Leu-8, and Leu-11 cell surface antigen expression. J Immunol. 1984 Jan;132(1):151–156. [PubMed] [Google Scholar]
  16. Morimoto C., Letvin N. L., Boyd A. W., Hagan M., Brown H. M., Kornacki M. M., Schlossman S. F. The isolation and characterization of the human helper inducer T cell subset. J Immunol. 1985 Jun;134(6):3762–3769. [PubMed] [Google Scholar]
  17. Morimoto C., Letvin N. L., Distaso J. A., Aldrich W. R., Schlossman S. F. The isolation and characterization of the human suppressor inducer T cell subset. J Immunol. 1985 Mar;134(3):1508–1515. [PubMed] [Google Scholar]
  18. Nishizuka Y. Studies and perspectives of protein kinase C. Science. 1986 Jul 18;233(4761):305–312. doi: 10.1126/science.3014651. [DOI] [PubMed] [Google Scholar]
  19. Nishizuka Y. The role of protein kinase C in cell surface signal transduction and tumour promotion. Nature. 1984 Apr 19;308(5961):693–698. doi: 10.1038/308693a0. [DOI] [PubMed] [Google Scholar]
  20. Reinherz E. L., Morimoto C., Fitzgerald K. A., Hussey R. E., Daley J. F., Schlossman S. F. Heterogeneity of human T4+ inducer T cells defined by a monoclonal antibody that delineates two functional subpopulations. J Immunol. 1982 Jan;128(1):463–468. [PubMed] [Google Scholar]
  21. Sanders M. E., Makgoba M. W., Shaw S. Human naive and memory T cells: reinterpretation of helper-inducer and suppressor-inducer subsets. Immunol Today. 1988 Jul-Aug;9(7-8):195–199. doi: 10.1016/0167-5699(88)91212-1. [DOI] [PubMed] [Google Scholar]
  22. Takada S., Koide J., Engleman E. G. Differences in surface phenotype between cytolytic and non-cytolytic CD4+ T cells. MHC class II-specific cytotoxic T lymphocytes lack Leu 8 antigen and express CD2 in high density. J Immunol. 1989 May 1;142(9):3038–3044. [PubMed] [Google Scholar]
  23. Tedder T. F., Isaacs C. M., Ernst T. J., Demetri G. D., Adler D. A., Disteche C. M. Isolation and chromosomal localization of cDNAs encoding a novel human lymphocyte cell surface molecule, LAM-1. Homology with the mouse lymphocyte homing receptor and other human adhesion proteins. J Exp Med. 1989 Jul 1;170(1):123–133. doi: 10.1084/jem.170.1.123. [DOI] [PMC free article] [PubMed] [Google Scholar]
  24. Tedder T. F., Penta A. C., Levine H. B., Freedman A. S. Expression of the human leukocyte adhesion molecule, LAM1. Identity with the TQ1 and Leu-8 differentiation antigens. J Immunol. 1990 Jan 15;144(2):532–540. [PubMed] [Google Scholar]

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