PACAP and PAC1 receptor expression in pancreatic ductal carcinoma.

PACAP and PAC1 receptor expression in pancreatic ductal carcinoma. Oncol Lett. 2019 Dec;18(6):5725-5730 Authors: Ferencz S, Reglodi D, Kaszas B, Bardosi A, Toth D, Vekony Z, Vicena V, Karadi O, Kelemen D Abstract Pancreatic carcinoma is one of the most malignant diseases and is associated with a poor survival rate. Pituitary adenylate cyclase activating polypeptide (PACAP) is a neuropeptide that acts on three different G protein-coupled receptors: the specific PAC1 and the VPAC1/2 that also bind vasoactive intestinal peptide. PACAP is widely distributed in the body and has diverse physiological effects. Among other things, it acts as a trophic factor and influences proliferation and differentiation of several different cells both under normal circumstances and tumourous transformation. Changes of PACAP and its receptors have been shown in various tumour types. However, it is not known whether PACAP and its specific receptor are altered in pancreatic cancer. Perioperative data of patients with pancreas carcinoma was investigated over a five-year period. Histological results showed Grade 2 or Grade 3 adenocarcinoma in most cases. PACAP and PAC1 receptor expression were investigated by immunohistochemistry. Staining intensity of PAC1 receptor was strong in normal tissues both in the exocrine and endocrine parts of the pancreas, the receptor staining was markedly weaker in the adenocarcinoma. PACAP immunostaining was weak in the exocrine part and very strong ...
Source: Oncology Letters - Category: Cancer & Oncology Tags: Oncol Lett Source Type: research

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Source: Journal for Immunotherapy of Cancer - Category: Cancer & Oncology Source Type: research
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Source: Biochemical and Biophysical Research communications - Category: Biochemistry Authors: Tags: Biochem Biophys Res Commun Source Type: research
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Source: Frontiers in Oncology - Category: Cancer & Oncology Source Type: research
Laia Gorchs1*, Carlos Fernández Moro1,2, Peter Bankhead3, Katharina P. Kern1, Imrul Sadeak1, Qingda Meng1, Elena Rangelova4,5 and Helen Kaipe1,6* 1Department of Laboratory Medicine, Karolinska Institutet, Stockholm, Sweden 2Department of Pathology/Cytology, Karolinska University Hospital, Stockholm, Sweden 3Division of Pathology, Centre for Genomic &Experimental Medicine, Western General Hospital, Institute of Genetics &Molecular Medicine, University of Edinburgh, Edinburgh, United Kingdom 4Department of CLINTEC, Karolinska Institutet, Stockholm, Sweden 5Pancreatic Surgery Unit, Center for Digesti...
Source: Frontiers in Immunology - Category: Allergy & Immunology Source Type: research
Seon Ah Lim1†, Jungwon Kim1†, Seunghyun Jeon1†, Min Hwa Shin1, Joonha Kwon1, Tae-Jin Kim1, Kyungtaek Im1, Youngmin Han2, Wooil Kwon2, Sun-Whe Kim2, Cassian Yee3, Seong-Jin Kim4*, Jin-Young Jang2* and Kyung-Mi Lee1,3,5* 1Department of Biochemistry and Molecular Biology, Korea University College of Medicine, Seoul, South Korea 2Department of Surgery and Cancer Research Institute, Seoul National University Hospital, Seoul National University College of Medicine, Seoul, South Korea 3Department of Melanoma Medical Oncology and Immunology, MD Anderson Cancer Center, Houston, TX, United States 4Prec...
Source: Frontiers in Immunology - Category: Allergy & Immunology Source Type: research
AbstractA patient with slight dilatation of the main pancreatic duct was followed-up with ultrasonography every 6  months as a high-risk case of pancreatic cancer. Twelve years later, a faint hypoechoic area 13 mm in diameter was first detected on the body of the pancreas. Contrast-enhanced ultrasonography revealed a well-demarcated hypoenhanced area 8 mm in diameter and a hyperenhanced area with an unclear margin. The former was suspected to be a small pancreatic cancer lesion, and the latter to be focal pancreatitis accompanying cancer. However, contrast-enhanced dynamic CT did not suggest any tumor, diagn...
Source: Journal of Medical Ultrasonics - Category: Radiology Source Type: research
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Source: Clinical and Experimental Medicine - Category: Research Source Type: research
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Source: Oncotarget - Category: Cancer & Oncology Tags: Oncotarget Source Type: research
Abstract Mast cells are recognized as critical components of the tumor stromal microenvironment in several solid and hematological malignancies, promoting angiogenesis and tumor growth. A correlation between mast cells infiltration, angiogenesis and tumor progression has been reported for pancreatic ductal adenocarcinoma as well. Mast cells contribute to the aggressiveness of the pancreatic ductal carcinoma enhancing the expression of several pro-angiogenic factors such as vascular endothelial growth factor, fibroblast growth factor-2, platelet-derived growth factor and angiopoietin-1 as well as stimulating the pancreati...
Source: Clinical and Experimental Medicine - Category: Research Source Type: research
AbstractA patient with slight dilatation of the main pancreatic duct was followed-up with ultrasonography every 6  months as a high-risk case of pancreatic cancer. Twelve years later, a faint hypoechoic area 13 mm in diameter was first detected on the body of the pancreas. Contrast-enhanced ultrasonography revealed a well-demarcated hypoenhanced area 8 mm in diameter and a hyperenhanced area with an unclear margin. The former was suspected to be a small pancreatic cancer lesion, and the latter to be focal pancreatitis accompanying cancer. However, contrast-enhanced dynamic CT did not suggest any tumor, diagn...
Source: Journal of Medical Ultrasonics - Category: Radiology Source Type: research
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