Pick Topic
Review Topic
List Experts
Examine Expert
Save Expert
  Site Guide ··   
Pancreatic Neoplasms: HELP
Articles by Spyros P. Potamianos
Based on 1 article published since 2010
(Why 1 article?)
||||

Between 2010 and 2020, Spyros P. Potamianos wrote the following article about Pancreatic Neoplasms.
 
+ Citations + Abstracts
1 Article Silencing of caveolin-1 in fibroblasts as opposed to epithelial tumor cells results in increased tumor growth rate and chemoresistance in a human pancreatic cancer model. 2019

Kamposioras, Konstantinos / Tsimplouli, Chrysiida / Verbeke, Caroline / Anthoney, Alan / Daoukopoulou, Argyro / Papandreou, Christos N / Sakellaridis, Nikolaos / Vassilopoulos, George / Potamianos, Spyros P / Liakouli, Vasiliki / Migneco, Gemma / Del Galdo, Francesco / Dimas, Konstantinos. ·Department of Medical Oncology, The Mid Yorkshire Hospitals NHS Trust, WF1 4DG Wakefield, UK. · Department of Pharmacology, Faculty of Medicine, School of Health Sciences, University of Thessaly, 41500 Larissa, Greece. · Institute of Clinical Medicine, University of Oslo, Norway. · Department of Medical Oncology, The Leeds Teaching Hospitals NHS Trust, LS9 7TF Leeds, UK. · Department of Medical Oncology, Faculty of Medicine, School of Health Sciences, University of Thessaly, 41110 Larissa, Greece. · Department of Hematology, Faculty of Medicine, School of Health Sciences, University of Thessaly, 41110 Larissa, Greece. · Department of Gastroenterology, Faculty of Medicine, School of Health Sciences, University of Thessaly, 41110 Larissa, Greece. · Scleroderma Programme, Leeds Institute of Rheumatic and Musculoskeletal Medicine, LMBRU, University of Leeds, LS9 7TF Leeds, UK. · Division of Oncology, Leeds Institute of Molecular Medicine, St. James's University Hospital Leeds, LS9 7TF Leeds, UK. ·Int J Oncol · Pubmed #30483772.

ABSTRACT: Caveolin‑1 (Cav‑1) expression has been shown to be associated with tumor growth and resistance to chemotherapy in pancreatic cancer. The primary aim of this study was to explore the significance of Cav‑1 expression in pancreatic cancer cells as compared to fibroblasts in relation to cancer cell proliferation and chemoresistance, both in vitro and in vivo, in an immunodeficient mouse model. We also aimed to evaluate the immunohistochemical expression of Cav‑1 in the epithelial and stromal component of pancreatic cancer tissue specimens. The immunohistochemical staining of poorly differentiated tissue sections revealed a strong and weak Cav‑1 expression in the epithelial tumor cells and stromal fibroblasts, respectively. Conversely, the well‑differentiated areas were characterized by a weak epithelial Cav‑1 expression. Cav‑1 downregulation in cancer cells resulted in an increased proliferation in vitro; however, it had no effect on chemoresistance and growth gain in vivo. By contrast, the decreased expression of Cav‑1 in fibroblasts resulted in a growth advantage and the chemoresistance of cancer cells when they were co‑injected into immunodeficient mice to develop mixed fibroblast/cancer cell xenografts. On the whole, the findings of this study suggest that the downregulation of Cav‑1 in fibroblasts is associated with an increased tumor proliferation rate in vivo and chemoresistance. Further studies are warranted to explore whether the targeting of Cav‑1 in the stroma may represent a novel therapeutic approach in pancreatic cancer.