0000000000249511

AUTHOR

Guang Sheng Ling

showing 2 related works from this author

C1q as a novel player in angiogenesis with therapeutic implication in wound healing

2014

We have previously shown that C1q is expressed on endothelial cells (ECs) of newly formed decidual tissue. Here we demonstrate that C1q is deposited in wound-healing skin in the absence of C4 and C3 and that C1q mRNA is locally expressed as revealed by real-time PCR and in situ hybridization. C1q was found to induce permeability of the EC monolayer, to stimulate EC proliferation and migration, and to promote tube formation and sprouting of new vessels in a rat aortic ring assay. Using a murine model of wound healing we observed that vessel formation was defective in C1qa(-/-) mice and was restored to normal after local application of C1q. The mean vessel density of wound-healing tissue and …

Pathologymedicine.medical_specialtycomplement C1qAngiogenesisImmunoblottingNeovascularization Physiologicchemical and pharmacologic phenomenaEnzyme-Linked Immunosorbent AssayIn situ hybridizationBiologyReal-Time Polymerase Chain ReactionangiogenesisMiceVasculogenesiscomplement; vasculogenesis; animal modelsimmune system diseasesmedicineangiogenesis; complement C1q; wound-healing; endothelial cellsHuman Umbilical Vein Endothelial CellsAnimalsHumanscomplementRats WistarIn Situ HybridizationCell ProliferationDNA PrimersTube formationMice KnockoutWound HealingMultidisciplinaryCell growthComplement C1qEndothelial CellsangiogenesivasculogenesiBiological Scienceswound-healingImmunohistochemistryanimal modelsendothelial cellsRatsMice Inbred C57BLReal-time polymerase chain reactionImmunohistochemistryWound healing
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C1q acts in the tumour microenvironment as a cancer-promoting factor independently of complement activation

2015

Complement C1q is the activator of the classical pathway. However, it is now recognized that C1q can exert functions unrelated to complement activation. Here we show that C1q, but not C4, is expressed in the stroma and vascular endothelium of several human malignant tumours. Compared with wild-type (WT) or C3- or C5-deficient mice, C1q-deficient (C1qa−/−) mice bearing a syngeneic B16 melanoma exhibit a slower tumour growth and prolonged survival. This effect is not attributable to differences in the tumour-infiltrating immune cells. Tumours developing in WT mice display early deposition of C1q, higher vascular density and an increase in the number of lung metastases compared with C1qa−/− mi…

Genetics and Molecular Biology (all)0301 basic medicinePROTEINGeneral Physics and AstronomyMELANOMAApoptosisInbred C57BLBiochemistryDISEASEAnimals; Apoptosis; Cell Line Tumor; Cell Movement; Cell Proliferation; Complement Activation; Complement C1q; Complement C3; Complement C5; Humans; Mice; Mice Inbred C57BL; Mice Knockout; Neoplasms; Biochemistry Genetics and Molecular Biology (all); Chemistry (all); Physics and Astronomy (all)Micefluids and secretionsCell Movementimmune system diseasesNeoplasmsIMMUNE-RESPONSEskin and connective tissue diseasesComplement ActivationComplement C1qMice KnockoutComplement component 5TumorMultidisciplinaryQChemistry (all)Complement C5Complement C33. Good healthCell biologyMultidisciplinary SciencesDEFICIENCYmedicine.anatomical_structureScience & Technology - Other TopicsHumanKnockoutSciencechemical and pharmacologic phenomenaBiologyArticleGeneral Biochemistry Genetics and Molecular BiologyTROPHOBLAST INVASIONMECHANISMSCell LinePhysics and Astronomy (all)03 medical and health sciencesClassical complement pathwayImmune systemINFLAMMATIONCell Line TumormedicineAnimalsHumansCell ProliferationScience & TechnologyBiochemistry Genetics and Molecular Biology (all)AnimalCell growthEFFECTOR SYSTEMComplement C1qApoptosiGeneral ChemistryComplement systemMice Inbred C57BL030104 developmental biologyCancer cellNeoplasmBone marrowANTIBODY THERAPYNature Communications
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