2022
ArhGEF12 activates Rap1A and not RhoA in human dermal microvascular endothelial cells to reduce tumor necrosis factor‐induced leak
Khan A, Ni W, Baltazar T, Lopez‐Giraldez F, Pober JS, Pierce RW. ArhGEF12 activates Rap1A and not RhoA in human dermal microvascular endothelial cells to reduce tumor necrosis factor‐induced leak. The FASEB Journal 2022, 36: e22254. PMID: 35294066, PMCID: PMC9103844, DOI: 10.1096/fj.202101873rr.Peer-Reviewed Original Research
2021
Tumor necrosis factor‐induced ArhGEF10 selectively activates RhoB contributing to human microvascular endothelial cell tight junction disruption
Khan A, Ni W, Lopez‐Giraldez F, Kluger MS, Pober JS, Pierce RW. Tumor necrosis factor‐induced ArhGEF10 selectively activates RhoB contributing to human microvascular endothelial cell tight junction disruption. The FASEB Journal 2021, 35: e21627. PMID: 33948992, PMCID: PMC9026622, DOI: 10.1096/fj.202002783rr.Peer-Reviewed Original ResearchConceptsCapillary endothelial cellsHuman dermal microvascular endothelial cellsMicrovascular endothelial cellsEndothelial cellsTight junctionsCultured human microvascular endothelial cellsEC tight junctionsLoss of barrierCapillary leak syndromeCapillary barrier functionDermal microvascular endothelial cellsRhoB activationTight junction disruptionDisrupts tight junctionsHuman microvascular endothelial cellsExtent of TNFHuman capillary endothelial cellsLeak syndromeOverwhelming inflammationCapillary leakBarrier lossTJ disruptionJunction disruptionRhoB knockdownTNF
2017
A p190BRhoGAP mutation and prolonged RhoB activation in fatal systemic capillary leak syndrome
Pierce RW, Merola J, Lavik JP, Kluger MS, Huttner A, Khokha MK, Pober JS. A p190BRhoGAP mutation and prolonged RhoB activation in fatal systemic capillary leak syndrome. Journal Of Experimental Medicine 2017, 214: 3497-3505. PMID: 29097442, PMCID: PMC5716031, DOI: 10.1084/jem.20162143.Peer-Reviewed Original ResearchConceptsTumor necrosis factorSystemic capillary leakDermal microvascular endothelial cellsMicrovascular endothelial cellsPatient-derived endothelial cellsEndothelial cellsCapillary leakNormal human dermal microvascular endothelial cellsSystemic capillary leak syndromeBarrier functionCapillary leak syndromeHuman dermal microvascular endothelial cellsTransendothelial electrical resistanceEC barrier functionNormal endothelial cellsLeak syndromeCritical illnessFatal casesNecrosis factorBarrier recoverySiRNA knockdownEC culturesRhoB activationGreater increaseJunctional proteins