Gene/Protein
Disease
Symptom
Drug
Enzyme
Compound
Pivot Concepts:
Gene/Protein
Disease
Symptom
Drug
Enzyme
Compound
Target Concepts:
Gene/Protein
Disease
Symptom
Drug
Enzyme
Compound
Query: EC:2.7.7.49 (
reverse transcriptase
)
31,746
document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)
A recently discovered member of the human T-cell leukemia virus (HTLV) family of retroviruses has been etiologically linked to the acquired immunodeficiency syndrome (AIDS). This virus, which has been designated HTLV-III, is tropic for OKT4+ (helper/inducer) T-cells. Moreover, the virus is cytopathic for these cells. Suramin is a drug used in the therapy of
Rhodesian trypanosomiasis
and onchocerciasis, and it inhibits the
reverse transcriptase
of a number of retroviruses including HTLV-III. In the present work, we report our findings that suramin can block the in vitro infectivity and cytopathic effect of HTLV-III at doses that are clinically attainable in human beings. We believe these results may have relevance in planning experimental therapeutic strategies for various diseases associated with members of the HTLV-family of pathogenic human retroviruses.
...
PMID:Protection of T cells against infectivity and cytopathic effect of HTLV-III in vitro. 608 46
A recently discovered member of the human T-cell leukemia virus (HTLV) family of retroviruses has been etiologically linked to the acquired immune deficiency syndrome (AIDS). This virus, which has been designated HTLV-III, is tropic for OKT4-bearing (helper-inducer) T cells. Moreover, the virus is cytopathic for these cells. Suramin is a drug used in the therapy of
Rhodesian trypanosomiasis
and onchocerciasis, and it is known to inhibit the
reverse transcriptase
of a number of retroviruses. Suramin has now been found to block in vitro the infectivity and cytopathic effect of HTLV-III at doses that are clinically attainable in human beings.
...
PMID:Suramin protection of T cells in vitro against infectivity and cytopathic effect of HTLV-III. 609 Dec 68
Suramin has long been used for the treatment of Gambian and
Rhodesian trypanosomiasis
and oncocerciasis. More recently, the demonstration that suramin inhibits DNA polymerases,
reverse transcriptase
and the lymphocyte terminal deoxynucleotidyl transferase has led to its clinical trials for the treatment of AIDS and cancer. The precise nature of suramin's anti-neoplastic action is not clear at this time. Suramin rapidly alters the tyrosine-specific phosphorylation of cellular proteins in many cancer cell lines. Here we demonstrate that suramin strongly inhibits the activity of CD45, the principal tyrosine specific protein phosphatase of T lymphocytes. Suramin-induced inactivation of CD45 is noncompetitive, irreversible and complete within 10 min. The ability of suramin to block CD45 mediated phosphatase function provides both new insight into the mechanism of action of this agent and a useful new probe for studies of T cell activation.
...
PMID:Suramin, an experimental chemotherapeutic drug, irreversibly blocks T cell CD45-protein tyrosine phosphatase in vitro. 833 52
