scholarly journals Immunolocalization of angiogenic growth factors in the ovine uterus during the oestrus cycle and in response to Steroids

2018 ◽  
Vol 53 (3) ◽  
pp. 667-679 ◽  
Author(s):  
TD Tremaine ◽  
AA Fouladi-Nashta
Keyword(s):  
Growth Factors ◽  
Angiogenic Growth Factors ◽  
Oestrus Cycle ◽  
Ovine Uterus

Angiogenesis: molecular mechanisms and functional interactions

2003 ◽  
Vol 89 (01) ◽  
pp. 190-197 ◽  
Author(s):  
Georg Breier ◽  
Hellmut Augustin
Keyword(s):  
Growth Factors ◽  
Research Program ◽  
Tumor Invasion ◽  
Molecular Mechanisms ◽  
Precursor Cells ◽  
Invasion And Metastasis ◽  
Angiogenic Growth Factors ◽  
Cell Contacts ◽  
Functional Interactions ◽  
Biannual Meeting

SummaryThe German Priority Research Program “Angiogenesis” (www.angiogenese.de) hosts a biannual meeting in the Kloster Seeon in Southern Germany. The 2nd Kloster Seeon Meeting “Angiogenesis: Molecular Mechanisms and Functional Interactions” was held in September 2002. It included sessions on hypoxia, the biology of endothelial precursor cells, angiogenic growth factors including VEGFs, the angiopoietins, ephrins, and FGFs, mechanisms of vascular sprouting and cell-cell contacts during angiogenesis, angiogenic signaling, lymphangiogenesis, angiogenesis during tumor invasion and metastasis, and on novel angiomanipulatory therapies. This report summarizes the key findings reported during the platform presentations of the meeting.

scholarly journals Neurotrophin-3 accelerates reendothelialization through inducing EPC mobilization and homing

2020 ◽  
Vol 15 (1) ◽  
pp. 241-250
Author(s):  
Yan Chen ◽  
Jian Cao ◽  
Weixia Peng ◽  
Wen Chen
Keyword(s):  
Growth Factors ◽  
Carotid Artery ◽  
Animal Experiments ◽  
Flow Chamber ◽  
Control Group ◽  
Angiogenic Growth Factors ◽  
Neurotrophin 3 ◽  
Stromal Cell Derived Factor ◽  
Intravascular Stent ◽  
Endothelial Growth Factor

AbstractRapid endothelialization is an effective way to treat intimal hyperplasia after intravascular stent implantation. Blood vessels and nerves coordinate with each other in function, while neurotrophin-3 (NT-3) is an important class of nerve growth factors. Our study found that NT-3 promoted endothelial progenitor cell (EPC) mobilization, and the proportion of EPCs in peripheral blood was increased by 1.774 times compared with the control group. Besides, NT-3 promoted the expression of stromal cell-derived factor-1α (SDF-1α), matrix metalloproteinase-9 (MMP9), and chemokine (C-X-C motif) receptor 4 (CXCR4) in EPCs, which increased by 59.89%, 74.46%, and 107.7%, respectively, compared with the control group. Transwell experiments showed that NT-3 enhanced the migration of EPCs by 1.31 times. Flow chamber experiments demonstrated that NT-3 captured more circulating EPCs. As shown by ELISA results, NT-3 can promote the paracrine of vascular endothelial growth factor, interleukin-8, MMP-9, and SDF-1 from EPCs. Such increased angiogenic growth factors further accelerated the closure of endothelial cell scratches. Additionally, EPC-conditioned medium in the NT-3 group significantly inhibited the proliferation of vascular smooth muscle cells. Then animal experiments also illustrated that NT-3 prominently accelerated the endothelialization of injured carotid artery. In short, NT-3 accelerated rapid reendothelialization of injured carotid artery through promoting EPC mobilization and homing.

scholarly journals The Antimicrobial Peptide Human β-Defensin-3 Accelerates Wound Healing by Promoting Angiogenesis, Cell Migration, and Proliferation Through the FGFR/JAK2/STAT3 Signaling Pathway

2021 ◽  
Vol 12 ◽  
Author(s):  
Miho Takahashi ◽  
Yoshie Umehara ◽  
Hainan Yue ◽  
Juan Valentin Trujillo-Paez ◽  
Ge Peng ◽  
...  
Keyword(s):  
Wound Healing ◽  
Cell Migration ◽  
Growth Factors ◽  
Growth Factor ◽  
Antimicrobial Peptide ◽  
Fibroblast Growth Factor ◽  
Human Fibroblasts ◽  
Janus Kinase ◽  
Fibroblast Growth ◽  
Angiogenic Growth Factors

In addition to its antimicrobial activity, the skin-derived antimicrobial peptide human β-defensin-3 (hBD-3) promotes keratinocyte proliferation and migration to initiate the wound healing process; however, its effects on fibroblasts, which are the major cell type responsible for wound healing, remain unclear. We investigated the role of hBD-3 in cell migration, proliferation and production of angiogenic growth factors in human fibroblasts and evaluated the in vivo effect of hBD-3 on promoting wound healing and angiogenesis. Following hBD-3 treatment, the mouse wounds healed faster and showed accumulation of neutrophils and macrophages in the early phase of wound healing and reduction of these phagocytes 4 days later. hBD-3-treated wounds also displayed an increased number of fibroblasts and newly formed vessels compared to those of the control mice. Furthermore, the expression of various angiogenic growth factors was increased in the hBD-3-treated wounds. Additionally, in vitro studies demonstrated that hBD-3 enhanced the secretion of angiogenic growth factors such as fibroblast growth factor, platelet-derived growth factor and vascular endothelial growth factor and induced the migration and proliferation of human fibroblasts. The hBD-3-mediated activation of fibroblasts involves the fibroblast growth factor receptor 1 (FGFR1)/Janus kinase 2 (JAK2)/signal transducer and activator of transcription 3 (STAT3) pathways, as evidenced by the inhibitory effects of pathway-specific inhibitors. We indeed confirmed that hBD-3 enhanced the phosphorylation of FGFR1, JAK2 and STAT3. Collectively, the current study provides novel evidence that hBD-3 might be a potential candidate for the treatment of wounds through its ability to promote wound healing, angiogenesis and fibroblast activation.

scholarly journals Detection of Serum Vascular Endothelial Growth Factors (VEGF) And Soluble Vascular Endothelial Growth Factors (sVEGF / sflt-1) of Pregnancy Induced Hypertension Mothers (PIH) With pathological changes of Placenta In a Tertiary Care Hospital of West Bengal.

2018 ◽  
Vol 2 (1) ◽  
pp. 25
Author(s):  
Sulekha Ghosh ◽  
Kabayashree Jana ◽  
Pratima Mandal ◽  
Trithankar Chakrabarty ◽  
Debasis Bhattacharya ◽  
...  
Keyword(s):  
Blood Pressure ◽  
Growth Factors ◽  
Tertiary Care ◽  
Vascular Endothelial Growth Factors ◽  
Vascular Endothelial ◽  
Care Hospital ◽  
Angiogenic Growth Factors ◽  
Serum Free ◽  
Induced Hypertension ◽  
Endothelial Growth Factors

Introduction:Pregnancy Induced Hypertension (PIH) results from imbalance between pro-angiogenic factors (VEGF & PIGF) and antiangiogenic factors (sVEGFR-1/sflt- 1)Subjects and methodology: A mixed random study comprising of random cases of different gestational ages 28-36 wks of PIH mothers along with control cases till completion of pregnancy after delivery. Age of enrolled mothers and their gestational age, blood pressure, serum free VEGF and sVEGFR-1(sflt1) were compared in both groups (control n=36, PIH n=36). Blood pressure of both control and PIH mothers just before and after delivery showed significant correlation (p<0.0001). Serum levels of free VEGF were lower among PIH mothers at 28-36 wks (p <0.0001) and just before delivery (JBD) (p <0.0001) than normal control antenatal mothers and more or less similar in both groups at just after delivery (p <0.390). Serum sflt1 level (6459.81 ±1811.07 pg/ml) of PIH mothers showed higher value than control mothers (1062.19 ± 165.98 pg/ml) at the time of presentation and also just before delivery(JBD) & after delivery(JAD) and was highly significant ( p < 0.0001). Serum free VEGF level of PIH mothers was negatively correlated with systolic r= - 0.247, p = 0.147) and diastolic (r =-0.220, p =0.197) blood pressure. The increased serum sflt1 level of PIH mothers was positively correlated with systolic (r = 0.299, p = 0.07) and diastolic (r = 0.309, p = 0.067) blood pressure. Semi quantitative expression of VEGF R1 and PCNA LI of placenta showed increased (3+) expression of VEGF R1 of 13 (43.33%) and > 50% PCNA LI expression of 12 (40%) cases than control.Discussion &Conclusion:The elevated levels of systolic and diastolic blood pressure along with alteration of proangiogenic and angiogenic growth factors among PIH mothers than normotensive control may help to identify PIH mothers as early as possible and referring them to higher/tertiary centers for better management and prevention of its grave complications of PIH.International Journal of Human and Health Sciences Vol. 02 No. 01 Jan’18. Page : 25-30

Sign in / Sign up

Export Citation Format

Share Document