scholarly journals The Effect of Insulin and Insulin-like Growth Factor 1 (IGF-1) on Cellular Proliferation and Migration of Human Subacromial Bursa Tissue

Author(s):  
Lukas N. Muench ◽  
Lisa Tamburini ◽  
Danielle Kriscenski ◽  
Arthur Landry ◽  
Daniel P. Berthold ◽  
...  
2015 ◽  
Vol 24 (2) ◽  
pp. 160-171 ◽  
Author(s):  
Mingxin Zhu ◽  
Yun Feng ◽  
Sean Dangelmajer ◽  
Hugo Guerrero-Cázares ◽  
Kaisorn L. Chaichana ◽  
...  

2021 ◽  
Author(s):  
Shuai Han ◽  
Zhenhua Wang ◽  
Guangjian Bai ◽  
Zhitao Han ◽  
Yunpeng Bai ◽  
...  

Abstract Background:Non-small cell lung cancer (NSCLC) is a malignant tumor with high morbidity and mortality. About 40% NSCLC patients develop bone metastasis. The aberrant expression of IGF2 (insulin-like growth factor-2) is known to be linked with many malignancies, but it has not been reported in NSCLC. Methods and Results:We first used the GEO database for differential gene analysis and showed a correlation between IGF2 and bone metastasis in NSCLC. IGF2 was highly expressed in primary NSCLC and even more highly expressed in bone metastases. Our in vivo experiment also showed that IGF2 promoted lung cancer proliferation and migration. In addition, IGF2 overexpression activated AKT/NF-κB pathway by promoting IGF1R and INSR phosphorylation, and enhanced osteolytic lesions in lung cancer.Conclusions:Up-regulation of insulin-like growth factor-2 can promote the proliferation and migration of non-small cell lung cancer cells, and is related to bone metastasis.


Medicina ◽  
2019 ◽  
Vol 55 (4) ◽  
pp. 90 ◽  
Author(s):  
Seyed Ahmad Hosseini ◽  
Hamid Zand ◽  
Makan Cheraghpour

Background and objectives: Mounting evidence shows that curcumin, a bioactive substance originating from turmeric root, has anticancer properties. Additionally, curcumin prevents the migration and metastasis of tumor cells. However, the molecular mechanism involved in the anti-metastatic action of curcumin is not clear. Most studies have suggested that migration inhibition is related to curcumin’s anti-inflammatory properties. Curcumin possesses a regulatory effect on insulin and insulin-like growth factor-1 (IGF-1) receptors and signaling. Insulin signaling is one of the important pathways involved in tumor initiation and progression; therefore, we proposed that the anti-metastatic effect of curcumin may mediate the downregulation of insulin and insulin-like growth factor-1 receptors. Materials and Methods: Viable resistant cells resulting from treating SW480 cells with 5-fluorouracil (5-FU) were subjected to curcumin treatment to analyze the proliferation and migration capacity in comparison to the untreated counterparts. To test the proliferation and migration potential, MTT, colony formation, and wound healing assays were performed. Real-time polymerase chain reaction (RT-PCR) was performed to measure the mRNA expression of insulin-like growth factor-1R (IGF-1R), insulin receptor (IR), and avian myelocytomatosis virus oncogene cellular homolog (MYC). Results: Our findings showed that curcumin significantly decreased insulin and IGF-1 receptors in addition to MYC expression. Additionally, the downregulation of the insulin and insulin-like growth factor-1 receptors was correlated to a greater decrease in the proliferation and migration of chemoresistant colorectal cancer cells. Conclusions: These results suggest the possible therapeutic effectiveness of curcumin in adjuvant therapy in metastatic colorectal cancer.


1993 ◽  
Vol 83 (4) ◽  
pp. 223-227 ◽  
Author(s):  
SJ Skokan ◽  
RH Davis

This review examines some of the important principles in wound repair and significant considerations for the use of growth factors. Moisture provides a positive influence on the mechanical and hormonal aspects of wounds. Atraumatic closure of surgical wounds and postoperative care and the types of wound closure are discussed. Cellular proliferation and migration in wounds are central features regarding growth factors.


2019 ◽  
Vol 17 (4) ◽  
pp. 379-387 ◽  
Author(s):  
Yan Sun ◽  
Xiao-li Liu ◽  
Dai Zhang ◽  
Fang Liu ◽  
Yu-jing Cheng ◽  
...  

Background:Intraplaque angiogenesis, the process of generating new blood vessels mediated by endothelial cells, contributes to plaque growth, intraplaque hemorrhage, and thromboembolic events. Platelet-derived Exosomes (PLT-EXOs) affect angiogenesis in multiple ways. The ability of miR-126, one of the best-characterized miRNAs that regulates angiogenesis, carried by PLT-EXOs to influence angiogenesis via the regulation of the proliferation and migration of endothelial cells is unknown. In this study, we aimed to investigate the effects of PLT-EXOs on angiogenesis by Human Umbilical Vein Endothelial Cells (HUVECs).Methods:We evaluated the levels of miR-126 and angiogenic factors in PLT-EXOs from Acute Coronary Syndrome (ACS) patients and healthy donors by real-time Polymerase Chain Reaction (PCR) and western blotting. We incubated HUVECs with PLT-EXOs and measured cell proliferation and migration with the Cell Counting Kit-8 assay and scratch assay, respectively. We also investigated the expression of miR-126 and angiogenic factors in HUVECs after exposure to PLT-EXOs by western blotting and real-time PCR.Results:PLT-EXOs from ACS patients contained higher levels of miR-126 and angiogenic factors, including Vascular Endothelial Growth Factor (VEGF), basic Fibroblast Growth Factor (bFGF), and Transforming Growth Factor Beta 1 (TGF-β1), than those from healthy donors (p<0.05). Moreover, the levels of exosomal miR-126 and angiogenic factors were increased after stimulation with thrombin (p<0.01). HUVEC proliferation and migration were promoted by treatment with activated PLT-EXOs (p<0.01); they were accompanied by the over-expression of miR-126 and angiogenic factors, including VEGF, bFGF, and TGF-β1 (p<0.01).Conclusion:Activated PLT-EXOs promoted the proliferation and migration of HUVECs, and the overexpression of miR-126 and angiogenic factors, thereby elucidating potential new therapeutic targets for intraplaque angiogenesis.


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