Skip to main content
U.S. Department of Energy
Office of Scientific and Technical Information

Features of target cell lysis by class I and class II MHC restricted cytolytic T lymphocytes

Journal Article · · J. Immunol.; (United States)
OSTI ID:6831750
The lytic activity of influenza virus-specific muvine cytolytic T lymphocyte (CTL) clones that are restricted by either H-2K/D (class I) or H-2I (class II) major histocompatibility (MHC) locus products was compared on an influenza virus-infected target cell expressing both K/D and I locus products. With the use of two in vitro measurements of cytotoxicity, conventional /sup 51/Cr release, and detergent-releasable radiolabeled DNA (as a measure of nuclear disintegration in the early post-lethal hit period), the authors found no difference between class I and class II MHC-restricted CTL in the kinetics of target cell destruction. In addition, class II MHC-restricted antiviral CTL failed to show any lysis of radiolabeled bystander cells. Killing of labeled specific targets by these class II MHC-restricted CTL was also efficiently inhibited by unlabeled specific competitor cells in a cold target inhibition assay. In sum, these data suggest that class I and class II MHC-restricted CTL mediate target cell destruction by an essentially similar direct mechanism.
Research Organization:
Washington Univ. School of Medicine, St. Louis, MO
OSTI ID:
6831750
Journal Information:
J. Immunol.; (United States), Journal Name: J. Immunol.; (United States) Vol. 137:11; ISSN JOIMA
Country of Publication:
United States
Language:
English

Similar Records

Major histocompatibility complex-unrestricted cytolytic activity of human T cells: analysis of precursor frequency and effector phenotype
Journal Article · Mon Nov 30 23:00:00 EST 1987 · J. Immunol.; (United States) · OSTI ID:5441819

Requirements for the triggering of lysis by cloned murine cytolytic T lymphocytes (CTL)
Conference · Tue Mar 04 23:00:00 EST 1986 · Fed. Proc., Fed. Am. Soc. Exp. Biol.; (United States) · OSTI ID:7024888

Frequency analysis of cytotoxic T lymphocyte precursors in chimeric mice. Evidence for intrathymic maturation of clonally distinct self-major histocompatibility complex- and allo-major histocompatiblilty complex-restricted virus-specific T cells
Journal Article · Mon Jun 01 00:00:00 EDT 1981 · J. Exp. Med.; (United States) · OSTI ID:5736758