By employing S1 nuclease mapping of total RNA isolated from porcine cerebral cortex, cerebellum, hypothalamus, pituitary, kidney, liver, pancreas, intestine, and antral mucosa, we have investigated gastrin gene expression in these tissues. Our results show that a gastrin gene is expressed only in the antral mucosal and pituitary tissues. Based on the amount of gastrin specific probe protected from S1 nuclease digestion in the presence of a given weight of total RNA, the amount of gastrin mRNA present in pituitary is approximately 330 times lower than in antral mucosa. These findings help establish the tissue distribution of gastrin gene expression.
Download full-text PDF |
Source |
|---|---|
| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC322045 | PMC |
| http://dx.doi.org/10.1093/nar/13.20.7299 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Transcardiac gradients of pro-cholecystokinin, cholecystokinin, and gastrin in patients with and without heart failure with reduced ejection fraction.
Peptides
January 2025
Department of Cardiology, Rigshospitalet, Copenhagen, Denmark, Department of Clinical Medicine, University of Copenhagen, Denmark.
Background: Cholecystokinin (CCK) is secreted from the intestines in response to food intake. We previously reported that the CCK gene is also expressed in the mammalian heart, and it has been hypothesized that proCCK could be a novel cardiac biomarker. However, it is not known whether cardiac gene expression leads to secretion in humans.
View Article and Find Full Text PDFSleeve gastrectomy reveals the plasticity of the human gastric epithelium.
Nat Commun
January 2025
Department of Developmental Biology and Cancer Research, The Institute for Medical Research Israel Canada, The Faculty of Medicine, The Hebrew University of Jerusalem, Jerusalem, Israel.
Gastrin is secreted following a rise in gastric pH, leading to gastric acid secretion. Sleeve gastrectomy (SG), a bariatric surgery where 80% of the gastric corpus is excised, presents a challenge for gastric pH homeostasis. Using histology, and single-cell RNA sequencing of the gastric epithelium in 12 women, we observed that SG is associated with an increase in a sub-population of acid-secreting parietal cells that overexpress respiratory enzymes and an increase in histamine-secreting enterochromaffin-like cells (ECLs).
View Article and Find Full Text PDFGRPR Drives Metastasis via CRABP2 and FNDC4 Pathways in Lung Adenocarcinoma.
Cells
December 2024
Targeted Therapy Branch, Division of Rare and Refractory Cancer, Research Institute, National Cancer Center, Goyang 10408, Republic of Korea.
Metastasis is a leading cause of lung adenocarcinoma (LUAD)-related mortality and presents significant challenges for treatment. The gastrin-releasing peptide receptor (GRPR), a member of the G protein-coupled receptor (GPCR) family, has an unclear role in LUAD progression. This study aimed to investigate the function and underlying mechanisms of GRPR in LUAD metastasis.
View Article and Find Full Text PDFTWK10 relieves loperamide-induced constipation in rats fed a high-fat diet modulating enteric neurotransmitters, short-chain fatty acids and gut microbiota.
Food Funct
January 2025
Department of Food Science, Nutrition, and Nutraceutical Biotechnology, Shih Chien University, Taipei 10462, Taiwan.
Obesity and constipation can alter the intestinal microbiota composition, affecting intestinal barrier integrity, immune function, and metabolic processes. Numerous studies have suggested that and could increase short-chain fatty acid (SCFA) production, thus improving the intestinal microbiota composition, mitigating obesity, and protecting the gastrointestinal tract. Therefore, in this study, we aimed to investigate the impact of TWK10 (TWK10) on gut dysbiosis, obesity, and constipation induced by a high-fat diet and loperamide.
View Article and Find Full Text PDFDeciphering the effects of radiopharmaceutical therapy in the tumor microenvironment of prostate cancer: an in-silico exploration with spatial transcriptomics.
Theranostics
December 2024
Department of Nuclear Medicine, Inselspital, University of Bern, Bern, Switzerland.
Radiopharmaceutical therapy (RPT) is an emerging prostate cancer treatment that delivers radiation to specific molecules within the tumor microenvironment (TME), causing DNA damage and cell death. Given TME heterogeneity, it's crucial to explore RPT dosimetry and biological impacts at the cellular level. We integrated spatial transcriptomics (ST) with computational modeling to investigate the effects of RPT targeting prostate-specific membrane antigen (PSMA), fibroblast activation protein (FAP), and gastrin-releasing peptide receptor (GRPR) each labelled with beta-emitting lutetium-177 (Lu) and alpha-emitting actinium-225 (Ac).
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!