human T-cell lymphotropic virus, type 1
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Human T-cell lymphotropic virus type 1 (HTLV-1) is a retrovirus that carries its genetic information in the form of RNA. It was the first human retrovirus discovered, identified in 1979. HTLV-1 infects helper T lymphocytes, the same cells targeted by HIV.12
Transmission occurs through sexual intercourse, blood transfusions, or breastfeeding. While millions are infected worldwide, only a small percentage develop serious conditions like adult T-cell leukemia (ATL) or HTLV-1-associated myelopathy/tropical spastic paraparesis (HAM/TSP). The exact mechanism by which HTLV-1 causes cancer is not fully understood, but a viral protein called tax may play a role in promoting continuous proliferation of infected T cells.21
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human diseaseViruses…with an RNA virus, the human T-cell leukemia virus (HTLV-1). While much experimental and clinical evidence supports the carcinogenic role of the above-mentioned viruses in humans, additional research suggests that other factors also may be required. Observations that support the multifactorial nature of viral carcinogenesis include the continuous but not…
Read More…with an RNA virus, the human T-cell leukemia virus (HTLV-1). While much experimental and clinical evidence supports the carcinogenic role of the above-mentioned viruses in humans, additional research suggests that other factors also may be required. Observations that support the multifactorial nature of viral carcinogenesis include the continuous but not…
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cancerRNA viruses…only one human retrovirus, the human T-cell leukemia virus type I (HTLV-I), is linked to a human tumor. This virus is associated with a T-cell leukemia/lymphoma that is endemic in the southern islands of Japan and the Caribbean basin but also is occasionally found elsewhere. HTLV-I infects helper T lymphocytes…
Read More…only one human retrovirus, the human T-cell leukemia virus type I (HTLV-I), is linked to a human tumor. This virus is associated with a T-cell leukemia/lymphoma that is endemic in the southern islands of Japan and the Caribbean basin but also is occasionally found elsewhere. HTLV-I infects helper T lymphocytes…
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