2018
DOI: 10.18632/oncotarget.24580
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Small molecule CXCR4 antagonists block the HIV-1 Nef/CXCR4 axis and selectively initiate the apoptotic program in breast cancer cells

Abstract: The chemokine receptor CXCR4 plays an integral role in the development of highly metastatic breast cancer and in the pathogenesis of chronic HIV infection. In this study, we compared the effects of CXCR4 antagonists on apoptosis induction in hematopoietic cells and in tumor cells. We incubated cells expressing CXCR4 with a series of CXCR4 antagonists and subsequently exposed the cultures to a pro-apoptotic peptide derived from the HIV-1 Nef protein (NefM1). The NefM1 peptide contains residues 50–60 of Nef and … Show more

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Cited by 7 publications
(10 citation statements)
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References 42 publications
(58 reference statements)
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“…Remarkably, this compound has the capability to prevent VEGF-mediated tumor angiogenesis induced by the CXCR4/CXCL12 axis in breast tumor xenografts [124] and exerts anti-metastatic activity in breast cancer in cultured cells and animal models [125,126,127]. The other anti-HIV SDF-1 competitor, Nef-M1, an apoptotic peptide that encompasses the residues 50 to 60 of the HIV-1 Nef protein (sequence: Thr–Asn–Ala–Ala–Cys–Ala–Trp–Leu–Glu–Ala–Gln), not only inhibits the growth of primary breast tumors and related metastasis [128,129], but also prevents breast tumor angiogenesis and epithelial-to-mesenchymal transition [130]. The CXCR4 antagonist GST–NT21MP, a 21-mer synthetic peptide derived from the N-terminal extremity of the viral macrophage inflammatory protein II, also called vMIP-II (NT21MP sequence: Leu–Gly–Ala–Ser–Trp–His–Arg–Pro–Asp–Lys–Cys–Cys–Leu–Gly–tyr–Gln–Lys–Arg–Pro–Leu–Pro, residues 1–21), abrogates SDF-1-induced cell growth, breast cancer cells adhesion and migration, and delays pulmonary metastasis in vivo [131,132].…”
Section: Gpcrs In Breast Cancer: Signaling Biology and Modulatorsmentioning
confidence: 99%
“…Remarkably, this compound has the capability to prevent VEGF-mediated tumor angiogenesis induced by the CXCR4/CXCL12 axis in breast tumor xenografts [124] and exerts anti-metastatic activity in breast cancer in cultured cells and animal models [125,126,127]. The other anti-HIV SDF-1 competitor, Nef-M1, an apoptotic peptide that encompasses the residues 50 to 60 of the HIV-1 Nef protein (sequence: Thr–Asn–Ala–Ala–Cys–Ala–Trp–Leu–Glu–Ala–Gln), not only inhibits the growth of primary breast tumors and related metastasis [128,129], but also prevents breast tumor angiogenesis and epithelial-to-mesenchymal transition [130]. The CXCR4 antagonist GST–NT21MP, a 21-mer synthetic peptide derived from the N-terminal extremity of the viral macrophage inflammatory protein II, also called vMIP-II (NT21MP sequence: Leu–Gly–Ala–Ser–Trp–His–Arg–Pro–Asp–Lys–Cys–Cys–Leu–Gly–tyr–Gln–Lys–Arg–Pro–Leu–Pro, residues 1–21), abrogates SDF-1-induced cell growth, breast cancer cells adhesion and migration, and delays pulmonary metastasis in vivo [131,132].…”
Section: Gpcrs In Breast Cancer: Signaling Biology and Modulatorsmentioning
confidence: 99%
“…In order to verify the effectiveness of this method, the simulation experiment is designed. The above analysis method is compared with the previous hypersensitivity method (Fülle et al 2018), selective targeting apoptosis method (Huang et al, 2018). The time-consuming, accuracy, and stability of the solution are compared.…”
Section: Simulation Experiments Analysismentioning
confidence: 99%
“…A reasonable prediction and evaluation of the actual experimental problems by these properties. Therefore, the study of PDE model has great practical value and objective significance (Fülle et al, 2018; Huang et al, 2018).…”
Section: Introductionmentioning
confidence: 99%
“…3841 In recent years, some promising anti-HIV-1 entry small-molecule inhibitors that target CXCR4 have been reported (Table 1). 38,4148…”
Section: Cxcr4-targeted Small-molecule Hiv-1 Entry Inhibitorsmentioning
confidence: 99%
“…These two compounds show selectivity toward blocking HIV-1 entry over CXCR4 antagonism, based on studies of HIV-1 IIIB MAGI entry and of CXCL12-induced calcium flux. 45 Compounds 5–7, which share N-aryl piperazines, are another series of CXCR4-antagonists. Compounds 6 and 7 exhibit high anti-HIV-1 entry activity at very low nanomolar levels (20 and 0.5 nM, respectively).…”
Section: Cxcr4-targeted Small-molecule Hiv-1 Entry Inhibitorsmentioning
confidence: 99%