scispace - formally typeset
Search or ask a question
Author

Cheng Peng

Other affiliations: Chinese Ministry of Education
Bio: Cheng Peng is an academic researcher from Shandong University. The author has contributed to research in topics: Integrin & Cancer. The author has an hindex of 16, co-authored 29 publications receiving 571 citations. Previous affiliations of Cheng Peng include Chinese Ministry of Education.
Topics: Integrin, Cancer, Cell migration, Metastasis, Cell

Papers
More filters
Journal ArticleDOI
TL;DR: Over-expression of β6-integrin protected SW480 and HT-29 colon cancer cells from 5-FU-induced growth inhibition and apoptosis, which was accompanied by changes in cytochrome C released from the mitochondria and activity of caspases-3 and caspase-9.

54 citations

Journal ArticleDOI
TL;DR: It is demonstrated that SDF-1/CXCR4 induces directional migration and liver metastasis of CRC cells by upregulating αvβ6 through ERK/Ets-1 pathway.
Abstract: Colorectal cancer (CRC) displays a predilection for metastasis to liver. Although stromal cell-derived factor-1 (SDF-1)/CXCR4 plays an important role in the liver metastasis, the molecular mechanism still remains obscure. We previously reported that integrin αvβ6 was implicated in the progression of CRC. However, no data are currently available on the cross talk between CXCR4 and αvβ6. In the present study, we first demonstrated the cross talk between CXCR4 and αvβ6 and their role in liver metastasis of CRC. We analyzed 159 human CRC samples and found that expression of CXCR4 and αvβ6 was significantly associated with liver metastasis, and interestingly expression of αvβ6 significantly correlated with expression of CXCR4. Both CXCR4 and αvβ6 were highly expressed in metastatic CRC cell lines HT-29 and WiDr, whereas both of them were exiguous in non-metastatic cell line Caco-2. Furthermore, inhibition of αvβ6 significantly decreased SDF-1α-induced cell migration in vitro. SDF-1/CXCR4 could upregulate αvβ6 expression through phosphorylation of ERK and activation of Ets-1 transcription factor. In conclusion, we demonstrate that SDF-1/CXCR4 induces directional migration and liver metastasis of CRC cells by upregulating αvβ6 through ERK/Ets-1 pathway. These data support combined inhibition of CXCR4 and αvβ6 to prevent development of liver metastasis of CRC.

54 citations

Journal ArticleDOI
TL;DR: BISAP, the Acute Physiology and Chronic Health Evaluation (APACHE) II and Ranson scoring systems are compared in predicting the severity, pancreatic necrosis and mortality of acute pancreatitis using the latest 2012 Atlanta classification in a tertiary care center in China.
Abstract: Background The bedside index of severity in acute pancreatitis (BISAP) is a new, convenient, prognostic multifactor scoring system. As there were no studies designed to validate this system according to the latest Atlanta classification in China and more data are needed before clinical application, we compared BISAP, the Acute Physiology and Chronic Health Evaluation (APACHE) II and Ranson scoring systems in predicting the severity, pancreatic necrosis and mortality of acute pancreatitis (AP) using the latest 2012 Atlanta classification in a tertiary care center in China. Methods The medical records of all patients with AP admitted to our hospitals between January 2010 and June 2013 were reviewed retrospectively. Severe AP was defined as the persistence of organ failure for more than 48 h. The capacity of the BISAP, APACHE II and Ranson's score system to predict severity, pancreatic necrosis and mortality was evaluated using linear-by-linear association. The predictive accuracy of the BISAP, APACHE II and Ranson's score was measured as the area under the receiver operating characteristic curve (AUC). Results Of 155 patients enrolled in the study, 16.7% were classified as having severe AP, and six (3.2%) died. There were statistically significant trends for increasing severity (P < 0.001), PNec (P < 0.001) and mortality (P < 0.001) with increasing BISAP. The AUC for severity predicted by BISAP was 0.793 (95% confidence interval [CI] 0.700–0.886), APACHE II 0.836 (95% CI 0.744–0.928) and by Ranson score was 0.903 (95% CI 0.814–0.992). The AUC for PNec predicted by BISAP was 0.834 (95% CI 0.739–0.929), APACHE II 0.801 (95% CI 0.691–0.910) and by Ranson score was 0.840 (95% CI 0.741–0.939). The AUC for mortality predicted by BISAP was 0.791 (95% CI 0.593–0.989), APACHE II 0.812 (95% CI 0.717–0.906) and by Ranson score was 0.904 (95% CI 0.829–0.979). Conclusions BISAP score may be a valuable source for risk stratification and prognostic prediction in Chinese patients with AP. A prospective and multicenter validation study is required to confirm our results and further our recognition of BISAP scores in AP.

50 citations

Journal ArticleDOI
TL;DR: IL-8 enhances the migration of CRC cells by increasing αvβ6 integrin expression through the ERK/Ets-1 pathway, and Targeting integrin αv β6 in IL-8 expressing tumors might be a potential therapeutic strategy for CRC patients.

47 citations

Journal ArticleDOI
TL;DR: Although endoscopic instruments specifically designed for NOTES are not available, the addition of an umbilical trocar is an optimal way to allow safe performance of NOTES procedures in an easily reproducible manner.
Abstract: Transvaginal cholecystectomy has been performed successfully at several research institutions worldwide using natural orifice transluminal endoscopic surgery (NOTES) techniques. However, it is a growing new surgical concept in China. Several technical challenges hinder the safe clinical application of NOTES. This study investigated transvaginal endoscopic cholecystectomy performed with the assistance of a single umbilical trocar and achieved helpful initial clinical experience. From May 2009 to April 2010, a total of 43 transvaginal human cholecystectomies were performed. A single umbilical trocar was used for safe access and laparoscopic assistance during the operation. After the gallbladder had been removed through the vagina, the colpotomy was closed with absorbable stitches under direct vision. In addition, Student’s t-test was performed for two samples to estimate the superiority of NOTES over a conventional laparoscopic cholecystectomy (LC) operation. The procedure was successfully completed for all the patients. No intra- or post-operative complications occurred. The patients recovered promptly after surgery, and all were satisfied with ideal cosmetic outcomes. The postoperative pain, hospital stay, and cost of hospitalization with NOTES were much less than with conventional LC operations. Although endoscopic instruments specifically designed for NOTES are not available, the addition of an umbilical trocar is an optimal way to allow safe performance of NOTES procedures in an easily reproducible manner. The authors’ initial experience demonstrates that this hybrid technique is potentially feasible and effective for reducing postoperative pain and recovery times while improving the cosmetic results of transvaginal cholecystectomy.

39 citations


Cited by
More filters
Journal ArticleDOI
TL;DR: The mechanism of action of phosphorylation is discussed, with particular attention to the importance ofosphorylation under physiological and pathological conditions, and the possibility of using kinase inhibitors in the treatment of tumors.
Abstract: Protein phosphorylation is an impo-rtant cellular regulatory mechanism as many enzymes and receptors are activated/deactivated by phosphorylation and dephosphorylation events, by means of kinases and phosph-atases. In particular, the protein kinases are responsible for cellular transduction signaling and their hyperactivity, malfunction or overexpression can be found in several diseases, mostly tumors. Therefore, it is evident that the use of kinase inhibitors can be valuable for the treatment of cancer. In this review, we discuss the mechanism of action of phosphorylation, with particular attention to the importance of phosphorylation under physiological and pathological conditions. We also discuss the possibility of using kinase inhibitors in the treatment of tumors.

711 citations

Journal ArticleDOI
TL;DR: Neovascularisation, which provides a basis for fostering tumour growth and metastasis, is now recognised as a critical function of CXCL8 in the tumour microenvironment and it is proposed that CxCL8 may be a potential therapeutic target for cancer treatment.

413 citations

Journal ArticleDOI
TL;DR: The membrane and cytoplasmic effects of GLR, coupled with its long-established medical use as a relatively safe drug, make GLR a good candidate to be tested against the SARS-CoV-2 coronavirus, alone and in combination with other drugs.

193 citations

Journal ArticleDOI
TL;DR: Understanding the relationship of the clinical risk factors for liver IRI to the cellular and molecular mechanisms that govern it is critical to higher levels of success after liver transplantation – a process that will lead to improved outcomes for patients suffering from end‐stage liver disease.
Abstract: Liver disease causing end organ failure is a growing cause of mortality. In most cases, the only therapy is liver transplantation. However, liver transplantation is a complex undertaking and its success is dependent on a number of factors. In particular, liver transplantation is subject to the risks of ischaemia-reperfusion injury (IRI). Liver IRI has significant effects on the function of a liver after transplantation. The cellular and molecular mechanisms governing IRI in liver transplantation are numerous. They involve multiple cells types such as liver sinusoidal endothelial cells, hepatocytes, Kupffer cells, neutrophils and platelets acting via an interconnected network of molecular pathways such as activation of toll-like receptor signalling, alterations in micro-RNA expression, production of ROS, regulation of autophagy and activation of hypoxia-inducible factors. Interestingly, the cellular and molecular events in liver IRI can be correlated with clinical risk factors for IRI in liver transplantation such as donor organ steatosis, ischaemic times, donor age, and donor and recipient coagulopathy. Thus, understanding the relationship of the clinical risk factors for liver IRI to the cellular and molecular mechanisms that govern it is critical to higher levels of success after liver transplantation. This in turn will help in the discovery of therapeutics for IRI in liver transplantation - a process that will lead to improved outcomes for patients suffering from end-stage liver disease.

181 citations

Journal ArticleDOI
TL;DR: The selective expression of cell adhesion molecules on different organs and endothelia, in conjunction with the presence of dissimilar adhesion ligands on various colorectal cancer cell lines, suggest that CAMs may also mediate the selection of the host organ, for the development of distant coloreCTal metastases.

179 citations