host cellular immune response among HTLV-I carriers. In data published elsewhere, we documented subclinical immunosuppression on the basis of the association of HTLV-I infection with reduced response to the tuberculin-purified protein derivative (PPD) recall antigen [3, 4]. In vitro studies suggest that the nonresponsiveness to PPD in these HTLV-I carriers may be related to a lack of IFN-g prod...

A monoclonal antibody, FTF 148, was prepared by hybridizing murine myelomal cells (NS-1) and spleen cells of BALB/c mice immunized with cultured cells derived from an adult T cell leukemia (ATL) patient (KUT-2 cells). This monoclonal antibody reacted with all of the human T cell leukemia virus I (HTLV-I)-infected cell lines tested but did not react with other T cell lines derived from acute lym...

Human T cell leukaemia virus type I (HTLV-I) is known to be involved in late-onset chronic polyarthritis as HTLV-I-associated arthropathy. However, it is unclear whether HTLV-I infection could modify the pathophysiology of osteoarthritis (OA). In this study we compared several inflammatory cytokines, such as C-terminal parathyroid hormone-related peptide (C-PTHrP), soluble interleukin-2 recepto...

BACKGROUND Human T-cell lymphoma/leukemia virus (HTLV)-1 is a retrovirus transmitted vertically from mother to child parenterally and sexually by infected lymphocytes. OBJECTIVE The objective of this study was to determine the seroprevalence of HTLV-1 antibodies and associated risk factors for HTLV-1 infection among pregnant women in University of Nigeria Teaching Hospital, Enugu, southeast N...

Objectives: Successful engraftment of human T-lymphotropic virus type 1 (HTLV-1)-infected cells and a marked increase of proviral DNA loads (PVLs) in non-obese diabetic/ severe combined immunodeficient (NOD/SCID)/ c null (NOG) mice have been reported. Whether the increased PVL in transplanted mice is due to the new infection of HTLV-1 was examined. Methods: Mononuclear cells from 3 NOG mice wit...

The main mode of mother-to-child transmission the human T-cell leukemia virus (HTLV)-1 is through breastfeeding. Although most reliable nutritional regimen to prevent HTLV-1 exclusive formula feeding, a recent meta-analysis revealed that short-term breastfeeding within 90 days does not increase risk infection. protocol Japanese Health, Labor, and Welfare Science Research Group primarily recomme...

Human T cell lymphotropic virus-1 (HTLV-1) primarily infects CD4+ T cells, causing inflammatory disorders or a T cell malignancy in 5% to 10% of carriers. The cytotoxic T lymphocyte (CTL) response is a key factor that controls the viral load and thus the risk of disease. The ability to detect the viral protein Tax in primary cells has made it possible to estimate the rate at which Tax-expressin...

In the United States, blood donors are being screened for infection with human T cell lymphotropic viruses I and II (HTLV-IyII) by serologic means, which detect antibodies to the structural proteins of these viruses. Because patients with mycosis fungoides (MF) usually do not have such antibodies even though their cells harbor HTLV-I Tax andyor pol proviral sequences, it was questioned whether ...

The aim of the present paper is to formulate two new mathematical models describe co-dynamics severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) and human T-cell lymphotropic virus type-I (HTLV-I) in a host. characterizes interplaying between seven compartments, uninfected ECs, latently SARS-CoV-2-infected actively free SARS-CoV-2 particles, CD4+T cells, HTLV-I-infected cells cells. i...