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Synergy between basic fibroblast growth factor and HIV-1 Tat protein in induction of Kaposi's sarcoma

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TLDR
Basic fibroblast growth factor and human immunodeficiency virus type 1 (HIV-1) Tat protein synergize in inducing angiogenic Kaposi's sarcoma-like lesions in mice, which may explain the higher frequency and aggressiveness of this form of KS.
Abstract
Basic fibroblast growth factor (bFGF) and human immunodeficiency virus type 1 (HIV-1) Tat protein synergize in inducing angiogenic Kaposi's sarcoma-like lesions in mice. Synergy is due to Tat, which enhances endothelial cell growth and type-IV collagenase expression in response to bFGF mimicking extracellular matrix proteins. The bFGF, extracellular Tat and Tat receptors are present in HIV-1-associated KS, which may explain the higher frequency and aggressiveness of this form compared to classical Kaposi's sarcoma where only bFGF is present.

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References
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Journal ArticleDOI

Detection, Isolation, and Continuous Production of Cytopathic Retroviruses (HTLV-III) from Patients with AIDS and Pre-AIDS

TL;DR: A cell system was developed for the reproducible detection of human T-lymphotropic retroviruses (HTLV family) from patients with the acquired immunodeficiency syndrome (AIDS) or with signs or symptoms that frequently precede AIDS (pre-AIDS), and it provides large amounts of virus for detailed molecular and immunological analyses.
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Requirement of vascular integrin alpha v beta 3 for angiogenesis

TL;DR: The adhesion receptor integrin alpha v beta 3 was identified as a marker of angiogenic vascular tissue in this paper, and it showed a fourfold increase in expression during angiogenesis on the chick chorioallantoic membrane.
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Cancer metastasis and angiogenesis: an imbalance of positive and negative regulation.

TL;DR: General themes are emerging that yield new strategies for prognosis and therapy of hu- man metastatic cancer, and an imbalanced regulation of motility and proteoly- sis appears to be required for invasion and metastasis.
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