Regulation of T cell response to leishmania antigens by determinants of histocompatibility leukocyte class I and II molecules

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1 Brazilian Journal of Medical and Biological Research (1998) 31: Modulation of response to leishmania antigen by HLA class I molecules ISSN X 1575 Regulation of T cell response to leishmania antigens by determinants of histocompatibility leukocyte class I and II molecules O. Bacellar 1, C. Russo 2 and E.M. Carvalho 1 1 Serviço de Imunologia, Hospital Universitário Prof. Edgard Santos, Universidade Federal da Bahia, Salvador, BA, Brasil 2 Division of International Medicine and Infectious Diseases, Cornell University Medical School and Immunology Program, Cornell University Graduate School of Medical Science, New York, NY, USA Correspondence E.M. Carvalho Serviço de Imunologia, HUPES Rua João das Botas, s/n Salvador, BA Brasil Fax: Research supported by grant AI and PRONEX. Received December 5, 1997 Accepted August 26, 1998 Abstract γ α γ γ γ Key words HLA class I Tegumentary leishmaniasis Modulation of T cell response by HLA class I Interferon-γ and HLA class I Soluble antigen and HLA class I

2 1576 O. Bacellar et al. Introduction γ Material and Methods Subjects Mononuclear cell separation and proliferation assay α Monoclonal antibodies

3 Modulation of response to leishmania antigen by HLA class I molecules 1577 Production and determination of IFN-g in vitro γ γ Evaluation of the addition of mab W6/32 to pulsed macrophages in terms of the inhibition of T cell proliferation Results Suppression of proliferative response (%) Anti-MHC class I Anti-MHC class II AR JM GO JS SL MP CS AC MS AO CO Patients Figure 1 - Effect of anti-mhc class I and II mabs on the lymphocyte proliferative response to leishmania antigens in patients with tegumentary leishmaniasis.

4 1578 O. Bacellar et al. Suppression (%) α α γ γ γ GO SL JM CS Patients IFN-γ production Lymphoproliferative response Figure 2 - Effect of anti-mhc class I mab on IFN-γ synthesis and lymphoproliferative response in patients with tegumentary leishmaniasis. AO

5 Modulation of response to leishmania antigen by HLA class I molecules 1579 Discussion α Table 1 - Effect of anti-mhc I mab on T cell responses to PPD, C. albicans and tetanus toxoid antigens in patients with tegumentary leishmaniasis. Data are reported as mean [ 3 H] uptake in cpm ± SD. The numbers in parentheses indicate the extent of suppression by mab W6/32 at 25 µg/ml. ND, Not determined. Culture conditions Patients JS SL CS AC PPD + medium 7016 ± ± ± 1628 ND PPD + W6/ ± 1108 (6%) 7553 ± 1467 (64%) ± 2325 (31%) ND C. albicans + medium ± ± ± ± 5115 C. albicans + W6/ ± 3568 (35%) ± 1023 (35%) 1815 ± 752 (56%) ± 3245 (16%) T. toxoid + medium ± ± 3551 ND 9708 ± 2429 T. toxoid + W6/ ± 2840 (8%) ± 1859 (25%) ND 6372 ± 1165 (35%) Leishmania Ag + medium ± ± ± ± 3013 Leishmania Ag + W6/ ± 1084 (67%) ± 1400 (58%) ± 1411 (19%) ± (30%) Table 2 - Effect of the addition of anti-hla class I and II mabs to cell populations on the response to leishmania. *Anti-HLA class II mab; **anti-hla class I mab. The numbers in parentheses indicate the extent of suppression by the mab. Clinical conditions Culture conditions Adherent cells + Ag Adherent cells + Ag Adherent cells + Ag Adherent cells + Ag Adherent cells + Ag Non-adherent cells mab L243* Non-adherent cells mab W6/32** Non-adherent cells Medium Non-adherent cells mab L243 Non-adherent cells mab W6/32 Tegumentary leishmaniasis ± ± ± ± ± 2244 (30%) (82%) (0%) (64%) Tegumentary leishmaniasis ± ± ± ± ± 728 (50%) (93%) (6%) (61%) Tegumentary leishmaniasis ± ± ± ± ± (45%) (63%) (0%) (0%) Healthy subject ± ± ± ± ± 188 (C. albicans Ag) (40%) (86%) (0%) (96%)

6 1580 O. Bacellar et al. γ

7 Modulation of response to leishmania antigen by HLA class I molecules 1581 γ Acknowledgments References 1. Kalil J & Wollman EE (1983). Role of class I and class II antigens in the allogeneic stimulation; class I and class II recognition in allogeneic stimulation; blocking of MRL by monoclonal antibodies and F(ab ) 2 fragments. Cellular Immunology, 79: Akiyama Y, Zicht R, Ferrone S, Bonnard GD & Herberman RB (1985). Effect of monoclonal antibodies (mab) to class I and class II HLA antigens on lectin and mab OKT3-induced lymphocyte proliferation. Cellular Immunology, 91: Carvalho EM, Johnson WD, Barreto E, Marsden PD, Costa JML, Reed S & Rocha H (1985). Cell mediated immunity in American cutaneous and mucosal leishmaniasis. Journal of Immunology, 135: Carvalho EM, Barral A, Costa JLM, Bittencourt AL & Marsden P (1994). Clinical and immunopathological aspects in disseminated cutaneous leishmaniasis. Acta Tropica, 56: Da Cruz AM, Silva FC, Bertho AL & Coutinho SG (1994). Leishmania reactive CD4+, CD8+ T cells associated with cure of human cutaneous leishmaniasis. Infection and Immunity, 62: Schwab R, Weksler ME & Russo C (1988). Pathway of T cell activation II: Role of HLA-class I molecules in early events. Cellular Immunology, 115: Russo C, Callegaro L, Lanza EV & Ferrone S (1983). Purification of IgG monoclonal antibody by capryllic acid precipitation. Journal of Immunological Methods, 65: Turco MC, De Felice M, Corbo L, Morrone G, Mertelsmann R, Ferrone S & Venuta S (1985). Regulatory role of a monomorphic determinant of HLA class I antigens in T cell proliferation. Journal of Immunology, 135: De Felice M, Turco MC, Carbo L, Carandente Giarusso P, Lamberti A, Valerio G, Tempani M, Constanzo F, Ferrone S & Venuta S (1989). Lack of a role of monocytes in the inhibition by monoclonal antibodies to monomorphic and polymorphic determinants of HLA class I antigens of PHA-P-induced peripheral blood mononuclear cell proliferation. Cellular Immunology, 122: Turco MC, De Felice M, Corbo L, Giarusso PC, Yang SY, Ferrone S & Venuta S (1988). Enhancing effect of anti-hla class I monoclonal antibodies on T cell proliferation induced via CD 2 molecule. Journal of Immunology, 141: Gilliland LK, Norris NA, Grosmaire LS, Ferrane S, Gladstone P & Ledbetter JA (1989). Signal transduction in lymphocyte activation through cross linking of HLA class I molecules. Human Immunology, 25: Van Wauve J & Goossens J (1981). Mitogenic actions of the clone OKT3 on human peripheral blood lymphocytes: effects on monocytes and serum components. International Journal of Immunopharmacology, 3: Tax WJM, Hermes FFM, Willems RW, Capel PJA & Koene RAP (1984). Fc receptors for mouse IgG1 on human monocytes: polymorphism and role in antibodyinduced T cell proliferation. Journal of Immunology, 133: Rinnooy Kan EA, Platzer E, Welte K & Wang CY (1985). Modulation of T cells differentiation antigens is monocyte dependent. Journal of Immunology, 134: Posnett DN, Sinha R, Kabak S & Russo C (1994). Clonal populations of T cells in normal elderly humans: The T cell equivalent to Benign Monoclonal Gammopathy. Journal of Experimental Medicine, 179: Moretta A, Tambussi G, Bottino C, Tripodi G, Merli A, Ciccone E, Pantaleo G & Moretta L (1990). A novel surface antigen expressed by a subset of human CD3 - CD19 + natural killer cells. Role in cell activation and regulation of cytolytic function. Journal of Experimental Medicine, 171: Moretta A, Bottino C, Pende D, Tripodi G, Tambussi G, Viale O, Orengo A, Barbaresi M, Merli A, Ciccone E & Moretta L (1990). Identification of four subsets of human CD3 - CD16 + NK cells by the expression of clonally distributed functional surface molecules. Correlation between subset assignment of NK clones and ability to mediate specific alloantigen recognition. Journal of Experimental Medicine, 172: Mingari MC, Ponte M, Cantoni C, Vitale C, Schiavetti F, Bertone S, Bellomo R, Cappai AT & Biassoni R (1997). HLA-class I-specific inhibitory receptors in human cytolytic T lymphocytes: molecular characterization, distribution in lymphoid tissues and co-expression by individual T cells. International Immunology, 9: Carvalho EM, Bacellar O, Brownell C, Régis T, Coffman RL & Reed S (1994). Restoration of IFN-γ production and lymphocyte proliferation in visceral leishmaniasis. Journal of Immunology, 152: Araújo MI, Ribeiro de Jesus A, Bacellar O, Sabin E, Pearce E & Carvalho EM (1996). Evidence of a T helper type 2 activation in human schistosomiasis. European Journal of Immunology, 26:

8 1582 O. Bacellar et al. Announcement 1999 Award in honor of Fred L. Soper ( ) for publications in the field of Inter-American Health Executive Secretary PAHEF rd Street N.W. Washington, DC USA

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