PMID- 23533599 OWN - NLM STAT- MEDLINE DCOM- 20130911 LR - 20240426 IS - 1932-6203 (Electronic) IS - 1932-6203 (Linking) VI - 8 IP - 3 DP - 2013 TI - The nexus between VEGF and NFkappaB orchestrates a hypoxia-independent neovasculogenesis. PG - e59021 LID - 10.1371/journal.pone.0059021 [doi] LID - e59021 AB - Nuclear Factor-Kappa B [NFkappaB] activation triggers the elevation of various pro-angiogenic factors that contribute to the development and progression of diabetic vasculopathies. It has been demonstrated that vascular endothelial growth factor [VEGF] activates NFkappaB signaling pathway. Under the ischemic microenvironments, hypoxia-inducible factor-1 [HIF-1] upregulates the expression of several proangiogenic mediators, which play crucial roles in ocular pathologies. Whereas YC-1, a soluble guanylyl cyclase [sGC] agonist, inhibits HIF-1 and NFkappaB signaling pathways in various cell and animal models. Throughout this investigation, we examined the molecular link between VEGF and NFkappaB under a hypoxia-independent microenvironment in human retinal microvascular endothelial cells [hRMVECs]. Our data indicate that VEGF promoted retinal neovasculogenesis via NFkappaB activation, enhancement of its DNA-binding activity, and upregulating NFkappaB/p65, SDF-1, CXCR4, FAK, alphaVbeta3, alpha5beta1, EPO, ET-1, and MMP-9 expression. Conversely, YC-1 impaired the activation of NFkappaB and its downstream signaling pathways, via attenuating IkappaB kinase phosphorylation, degradation and activation, and thus suppressing p65 phosphorylation, nuclear translocation, and inhibiting NFkappaB-DNA binding activity. We report for the first time that the nexus between VEGF and NFkappaB is implicated in coordinating a scheme that upregulates several pro-angiogenic molecules, which promotes retinal neovasculogenesis. Our data may suggest the potential use of YC-1 to attenuate the deleterious effects that are associated with hypoxia/ischemia-independent retinal vasculopathies. FAU - DeNiro, Michael AU - DeNiro M AD - Research Department, King Khaled Eye Specialist Hospital, Riyadh, Saudi Arabia. mdeniro@kkesh.med.sa FAU - Al-Mohanna, Falah H AU - Al-Mohanna FH FAU - Alsmadi, Osama AU - Alsmadi O FAU - Al-Mohanna, Futwan A AU - Al-Mohanna FA LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't PT - Retracted Publication DEP - 20130322 PL - United States TA - PLoS One JT - PloS one JID - 101285081 RN - 0 (Enzyme Activators) RN - 0 (Indazoles) RN - 0 (Transcription Factor RelA) RN - 0 (Vascular Endothelial Growth Factor A) RN - 154453-18-6 (3-(5'-hydroxymethyl-2'-furyl)-1-benzylindazole) SB - IM RIN - PLoS One. 2019 Dec 30;14(12):e0227432. PMID: 31887132 MH - Blotting, Western MH - Cell Proliferation/drug effects MH - Cells, Cultured MH - Enzyme Activators/pharmacology MH - Enzyme-Linked Immunosorbent Assay MH - Humans MH - Immunohistochemistry MH - Indazoles/*pharmacology MH - Neovascularization, Physiologic/drug effects/genetics MH - Phosphorylation/drug effects MH - Reverse Transcriptase Polymerase Chain Reaction MH - Transcription Factor RelA/*metabolism MH - Vascular Endothelial Growth Factor A/*pharmacology PMC - PMC3606454 COIS- Competing Interests: The authors have declared that no competing interests exist. EDAT- 2013/03/28 06:00 MHDA- 2013/09/12 06:00 PMCR- 2013/03/22 CRDT- 2013/03/28 06:00 PHST- 2013/01/09 00:00 [received] PHST- 2013/02/09 00:00 [accepted] PHST- 2013/03/28 06:00 [entrez] PHST- 2013/03/28 06:00 [pubmed] PHST- 2013/09/12 06:00 [medline] PHST- 2013/03/22 00:00 [pmc-release] AID - PONE-D-13-01727 [pii] AID - 10.1371/journal.pone.0059021 [doi] PST - ppublish SO - PLoS One. 2013;8(3):e59021. doi: 10.1371/journal.pone.0059021. Epub 2013 Mar 22.