Tags

Type your tag names separated by a space and hit enter

Regulation of HLA-DR and invariant chain expression by human peripheral blood mononuclear cells with lead, interferon-gamma, or interleukin-4.
Cell Immunol. 1996 Jul 10; 171(1):1-9.CI

Abstract

It has been reported that the expression of major histocompatibility complex (MHC) class II can be regulated by lead (Pb) in murine cells. In both human and mouse, the expression of MHC class II and invariant chain (Ii) can be regulated by cytokines, including interferon-gamma (IFN-gamma) and interleukin-4 (IL-4). Herein we report that in humans, as with IL-4, Pb enhanced MHC class II antigen DR (HLA-DR) surface expression by monocytes and B cells; Ii surface expression by monocytes and B cells was not affected by Pb while it was enhanced by IL-4. IFN-gamma increased HLA-DR and Ii surface expression by monocytes but it decreased HLA-DR and Ii surface expression by B cells. Total cellular HLA-DR expression by peripheral blood mononuclear cells (PBMC) was increased by Pb, IFN-gamma, or IL-4. Total cellular Ii (p33 and p35) expression by PRMC was not affected by Pb or IFN-gamma while it was increased by IL-4. In PBMC, the steady-state mRNA levels of HLA-DR alpha and Ii were not affected by Pb; IFN-gamma increased HLA-DR alpha mRNA expression but not Ii; IL-4 increased both mRNA levels of HLA-DR alpha and Ii. Furthermore, Pb, IFN-gamma, or IL-4 significantly increased the total cellular level of HLA-DR:Ii complexes in PBMC while they had no effect on cell surface HLA-DR:Ii complex expression. Overall, these results suggest that, in vitro, Pb, IFN-gamma, and IL-4 differentially modulate HLA-DR and Ii expression by human PBMC.

Authors+Show Affiliations

Department of Pathology and Laboratory Medicine, Albany Medical College, New York 12208, USA.No affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article
Research Support, U.S. Gov't, P.H.S.

Language

eng

PubMed ID

8660831

Citation

Guo, T L., et al. "Regulation of HLA-DR and Invariant Chain Expression By Human Peripheral Blood Mononuclear Cells With Lead, Interferon-gamma, or Interleukin-4." Cellular Immunology, vol. 171, no. 1, 1996, pp. 1-9.
Guo TL, Mudzinski SP, Lawrence DA. Regulation of HLA-DR and invariant chain expression by human peripheral blood mononuclear cells with lead, interferon-gamma, or interleukin-4. Cell Immunol. 1996;171(1):1-9.
Guo, T. L., Mudzinski, S. P., & Lawrence, D. A. (1996). Regulation of HLA-DR and invariant chain expression by human peripheral blood mononuclear cells with lead, interferon-gamma, or interleukin-4. Cellular Immunology, 171(1), 1-9.
Guo TL, Mudzinski SP, Lawrence DA. Regulation of HLA-DR and Invariant Chain Expression By Human Peripheral Blood Mononuclear Cells With Lead, Interferon-gamma, or Interleukin-4. Cell Immunol. 1996 Jul 10;171(1):1-9. PubMed PMID: 8660831.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Regulation of HLA-DR and invariant chain expression by human peripheral blood mononuclear cells with lead, interferon-gamma, or interleukin-4. AU - Guo,T L, AU - Mudzinski,S P, AU - Lawrence,D A, PY - 1996/7/10/pubmed PY - 1996/7/10/medline PY - 1996/7/10/entrez SP - 1 EP - 9 JF - Cellular immunology JO - Cell Immunol VL - 171 IS - 1 N2 - It has been reported that the expression of major histocompatibility complex (MHC) class II can be regulated by lead (Pb) in murine cells. In both human and mouse, the expression of MHC class II and invariant chain (Ii) can be regulated by cytokines, including interferon-gamma (IFN-gamma) and interleukin-4 (IL-4). Herein we report that in humans, as with IL-4, Pb enhanced MHC class II antigen DR (HLA-DR) surface expression by monocytes and B cells; Ii surface expression by monocytes and B cells was not affected by Pb while it was enhanced by IL-4. IFN-gamma increased HLA-DR and Ii surface expression by monocytes but it decreased HLA-DR and Ii surface expression by B cells. Total cellular HLA-DR expression by peripheral blood mononuclear cells (PBMC) was increased by Pb, IFN-gamma, or IL-4. Total cellular Ii (p33 and p35) expression by PRMC was not affected by Pb or IFN-gamma while it was increased by IL-4. In PBMC, the steady-state mRNA levels of HLA-DR alpha and Ii were not affected by Pb; IFN-gamma increased HLA-DR alpha mRNA expression but not Ii; IL-4 increased both mRNA levels of HLA-DR alpha and Ii. Furthermore, Pb, IFN-gamma, or IL-4 significantly increased the total cellular level of HLA-DR:Ii complexes in PBMC while they had no effect on cell surface HLA-DR:Ii complex expression. Overall, these results suggest that, in vitro, Pb, IFN-gamma, and IL-4 differentially modulate HLA-DR and Ii expression by human PBMC. SN - 0008-8749 UR - https://www.unboundmedicine.com/medline/citation/8660831/Regulation_of_HLA_DR_and_invariant_chain_expression_by_human_peripheral_blood_mononuclear_cells_with_lead_interferon_gamma_or_interleukin_4_ L2 - https://linkinghub.elsevier.com/retrieve/pii/S0008-8749(96)90166-5 DB - PRIME DP - Unbound Medicine ER -