Inhibition of lymphocyte transformation by disrupted murine oncornavirus.

نویسندگان

  • A K Fowler
  • D R Twardzik
  • C D Reed
  • O S Weislow
  • A Hellman
چکیده

Freeze-thaw preparations of banded Rauscher murine leukemia virus markedly suppressed the in vitro cellular-mediated blastogenic response of murine splenic lymphocytes to phytohemagglutinin-P and to allogeneic cells in two-way mixed-leukocyte reaction. Suppression was shown not to be due to cytotoxicity or to virus-mitogen binding. It is suggested that a virion envelope component interferes with cellular-mediated immunity by altering cell recognition sites.

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

The specificity of dimethylbenzylrifampicin as an inhibitor of viral induced transformation.

The effect of 2',6'-dimethyl-N(4')-benzyl-N(4')- [desmethyl]rifampicin on viral transformation induced by two unrelated oncogenic viruses was compared. Transformation of Balb/3T3 cells by the small, DNA-containing papova virus simian virus 40 was completely normal under conditions where transformation by the large, RNA-containing oncornavirus murine sarcoma virus was inhibited more than 150-fol...

متن کامل

Inhibition of oncornavirus functions by poly (2-methylthioinosinic acid).

Poly (2-methylthioinosinic acid) [poly(ms2I)] was found to markedly inhibit the RNA directed DNA polymerase (reverse transcriptase) activity of murine (Moloney, Rauscher) leukemia virus and murine (Moloney) sarcoma virus, while under the same conditions the unsubstituted parent compound poly(I) showed little, if any, inhibitory effect. Copolymers of inosinic acid (I) and 2-methylthioinosinic ac...

متن کامل

Detection and evaluation of feline oncornavirus-induced cell surface antigen(s) shed from cells in vitro.

A method for preparation of soluble feline oncornavirus-induced cell surface antigens was described. This technique relied upon the natural release of antigen(s) from FL-74 feline lymphoblastoid cells during their maintenance at 37 degrees in serum-deficient medium. When concentrated and clarified spent medium from 4-day cultures was tested for its antigen content by inhibition of humoral cytot...

متن کامل

IN VITRO STUDY OF AN ENDOGENOUS IMMUNOSUPPRESSOR FACTOR DERIVED FROM HUMAN OR BOVINE SERUM

The effects of the human and bovine LSF (derived from sera) as well as their purified fractions were studied on murine lymphocytes reactions indicated by blast transformation (BT) assay, mixed lymphocyte culture (MLC) and IgG synthesis. The results indicated that bovine lipid suppressor factor (LSF) has significant immunosuppressive activity on lymphocytes proliferation both in BT and MLC ...

متن کامل

THE PRODUCTION OF MURINE MONOCLONAL ANTIBODIES (MAb) DIRECTED AGAINST HUMAN T- LYMPHOCYTE SUBSETS

The production of murine monoclonal antibody (MAb) has not yet been reported in Iran. The present work describes for the first time the generation of several murine hybridoma clones secreting MAbs directed against human leukocyte surface antigens. The secreted antibodies by hybridoma clones have been screened on different lymphoid and non-lymphoid tissues. Results indicated that of seven h...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

عنوان ژورنال:
  • Cancer research

دوره 37 12  شماره 

صفحات  -

تاریخ انتشار 1977