4.3 Article

Trefoil Factor Family Peptides in Normal and Diseased Human Pancreas

期刊

PANCREAS
卷 41, 期 6, 页码 888-896

出版社

LIPPINCOTT WILLIAMS & WILKINS
DOI: 10.1097/MPA.0b013e31823c9ec5

关键词

trefoil peptide; pancreas; pancreatic adenocarcinoma; gastrokine 2; migration; proliferation

资金

  1. Pathological Society of Great Britain
  2. Pathological Society of Ireland
  3. Cancer Research UK

向作者/读者索取更多资源

Objectives: Trefoil factor family (TFF) peptides promote wound healing in the gut. Recent evidence has suggested that TFF3 may be a pancreatic mitogen, an unusual role for TFF peptides. We sought to clarify human pancreatic TFF and mucin expression and performed in vitro experiments to see how pancreatic cell lines respond to TFF3 in particular. Methods: Samples of normal and diseased pancreas (chronic pancreatitis, pancreatic intraepithelial neoplasia, neuroendocrine tumors, and pancreatic ductal adenocarcinoma [PDAC]) were studied by immunohistochemistry and in situ hybridization. Pancreatic cell lines were challenged with TFF2 and TFF3 in wound and migration assays. Results: In normal islets, colocalization of insulin or glucagon with TFF3 was common. All TFF messenger RNAs were seen in ductal epithelium. Adenocarcinomas expressed all TFF messenger RNAs. Normal ducts were mucin free; MUC5AC was strongest in pancreatic intraepithelial neoplasia and chronic pancreatitis but was reduced in PDAC. TFF2 induced Panc-1 migration and accelerated wound closure in Capan-2 and COLO-357. Double immunohistochemistry for insulin or TFF3 and Ki67 colabeled only very rare islet cells. TFF3-positive PDAC ducts showed some Ki67 colocalization. Conclusions: No correlation between TFF3 or insulin and Ki67 was seen without ductal hyperplasia. TFF2 may assist pancreatic tumor cell movement, but TFF3 may not be a pancreatic mitogen.

作者

我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。

评论

主要评分

4.3
评分不足

次要评分

新颖性
-
重要性
-
科学严谨性
-
评价这篇论文

推荐

Article Computer Science, Software Engineering

Not all applications have boring communication patterns: Profiling message matching with BMM

Taylor Groves, Naveen Ravichandrasekaran, Brandon Cook, Noel Keen, David Trebotich, Nicholas J. Wright, Bob Alverson, Duncan Roweth, Keith Underwood

Summary: Message matching is an important performance consideration for applications with two-sided semantics. This study presents an instrumentation of the CrayMPI library for collecting detailed message-matching statistics and an implementation of hashed matching in software. The authors analyze DOE applications with complex communication patterns to determine when hardware offload capabilities within the NIC can accelerate message matching.

CONCURRENCY AND COMPUTATION-PRACTICE & EXPERIENCE (2023)

Article Cell Biology

Disruption of pancreatic stellate cell myofibroblast phenotype promotes pancreatic tumor invasion

Elizabeth R. Murray, Shinelle Menezes, Jack C. Henry, Josie L. Williams, Lorena Alba-Castellon, Priththivika Baskaran, Ivan Quetier, Ami Desai, Jacqueline J. T. Marshall, Ian Rosewell, Marianthi Tatari, Vinothini Rajeeve, Faraz Khan, Jun Wang, Panoraia Kotantaki, Eleanor J. Tyler, Namrata Singh, Claire S. Reader, Edward P. Carter, Kairbaan Hodivala-Dilke, Richard P. Grose, Hemant M. Kocher, Nuria Gavara, Oliver Pearce, Pedro Cutillas, John F. Marshall, Angus J. M. Cameron

Summary: PKN2 plays a critical role in the differentiation of pancreatic stellate cells into myofibroblast-like cancer-associated fibroblasts. Loss of PKN2 leads to reduced proliferation and contractility of pancreatic stellate cells, as well as a switch from myofibroblast to inflammatory cancer-associated fibroblast phenotype. Furthermore, deletion of PKN2 promotes invasive cancer cell outgrowth and induces more locally invasive pancreatic tumors. The absence of PKN2 in the pancreatic stroma predicts poor outcome in pancreatic and other solid human cancers.

CELL REPORTS (2022)

Review Oncology

The Obscure Potential of AHNAK2

Mohamed Zardab, Konstantinos Stasinos, Richard P. Grose, Hemant M. Kocher

Summary: AHNAK2 is a newly discovered protein with a strong association with oncogenesis in various epithelial cancers. It has a tripartite structure and is believed to be involved in the formation of large multi-protein complexes. High expression of AHNAK2 is found in several cancers, including clear cell renal carcinoma and pancreatic ductal adenocarcinoma, and is associated with poor prognosis. Limited research has been conducted on the function and relation of AHNAK2 with cancer, but early studies suggest its potential as a future biomarker and therapeutic target.

CANCERS (2022)

Review Oncology

Cancer-associated fibroblasts in pancreatic cancer: new subtypes, new markers, new targets

Shinelle Menezes, Mohamed Hazem Okail, Siti Munira Abd Jalil, Hemant M. Kocher, Angus J. M. Cameron

Summary: This article discusses the conflicting roles of cancer-associated fibroblasts (CAFs) in tumor promotion and suppression, as well as therapeutic strategies. It highlights the heterogeneity of CAF subtypes and their association with patient prognosis and therapy response. Targeting CAF subtypes associated with immunotherapy response may provide new options for pancreatic cancer treatment.

JOURNAL OF PATHOLOGY (2022)

Review Oncology

Lineage tracing in human tissues

Calum Gabbutt, Nicholas A. Wright, Ann-Marie Baker, Darryl Shibata, Trevor A. Graham

Summary: The dynamical process of cell division that maintains homeostasis in the human body cannot be observed directly. Instead, it is measured through somatic genetic or epigenetic mutations in tissues. Mathematical analysis of somatic clone sizes provides quantitative information on cell birth, death, and replacement rates. This review explores the use of different somatic mutation types for lineage tracing in human tissues, introduces mathematical concepts for inferring dynamic information from clone size data, and discusses the implications of this approach for understanding homeostasis and cancer development.

JOURNAL OF PATHOLOGY (2022)

Article Medicine, General & Internal

Large desmoid tumour of the small bowel mesentery

Athena Michaelides, Andrew Ang, Joanne ChinAleong, Hemant M. Kocher

Summary: A 74-year-old man with a pancreatic insulinoma was found to have an incidental mesenteric mass. After 39 months, the mass grew and caused abdominal obstruction. The patient underwent surgery to remove the tumor, which was diagnosed as a mesenteric desmoid tumor. Currently, the patient is in remission.

BMJ CASE REPORTS (2022)

Article Medicine, General & Internal

Intraoperative acute compartment syndrome of the upper limb secondary to extravasation

Andrew Ang, Athena Michaelides, Stephen Hallworth, Hemant M. Kocher

Summary: A woman in her 50s undergoing repeat liver resection surgery for liver metastasis recurrence experienced sluggish intravenous fluid flow and developed acute upper limb compartment syndrome exacerbated by metaraminol. Prompt medical intervention including fasciotomies and decompression restored perfusion.

BMJ CASE REPORTS (2022)

Article Cell Biology

TRPM7 Modulates Human Pancreatic Stellate Cell Activation

Julie Auwercx, Philippe Kischel, Thibaut Lefebvre, Nicolas Jonckheere, Alison Vanlaeys, Stephanie Guenin, Silviya Radoslavova, Isabelle Van Seuningen, Halima Ouadid-Ahidouch, Hemant M. Kocher, Isabelle Dhennin-Duthille, Mathieu Gautier

Summary: Pancreatic diseases are characterized by activated pancreatic stellate cells (PSCs), which play important roles in tumor stroma. TRPM7 channels have been found to regulate the activation and proliferation of PSCs, and the expression of TRPM7 is associated with the activation status of PSCs.
Article Oncology

Differentiating Ductal Adenocarcinoma of the Pancreas from Benign Conditions Using Routine Health Records: A Prospective Case-Control Study

Mohamed Zardab, Vickna Balarajah, Abhirup Banerjee, Konstantinos Stasinos, Amina Saad, Ahmet Imrali, Christine Hughes, Rhiannon Roberts, Ajith Vajrala, Claude Chelala, Hemant M. Kocher, Abu Z. M. Dayem Ullah

Summary: This study aimed to differentiate suspected PDAC from benign conditions by analyzing clinical parameters. A machine learning-based prediction model was developed using patients’ presenting symptoms, laboratory test results, and demographic information. The model can support clinicians in assessing pancreatic disease patients and referring potential malignant candidates to tertiary centers, potentially leading to early detection and improved overall survival rates.

CANCERS (2023)

Article Genetics & Heredity

Genomic heterogeneity in pancreatic cancer organoids and its stability with culture

Olalekan H. Usman, Liting Zhang, Gengqiang Xie, Hemant M. Kocher, Chang-il Hwang, Yue Julia Wang, Xian Mallory, Jerome Irianto

Summary: The establishment of patient-derived pancreatic cancer organoid culture has provided an important tool to study genomic heterogeneity and stability in cancer cells. Research has shown the presence of clonal populations with similar copy number profiles in pancreatic cancer organoids, and the proportion of these clones changes with extended culture, indicating the growth advantage of certain clones. However, sub-clonal genomic heterogeneity is also observed within each clonal population, suggesting the genomic instability of pancreatic cancer cells. Additionally, gene expression regulation is influenced by copy number alterations.

NPJ GENOMIC MEDICINE (2022)

Article Oncology

Age-associated microenvironmental changes highlight the role of PDGF-C in ER+ breast cancer metastatic relapse

Frances K. Turrell, Rebecca Orha, Naomi J. Guppy, Andrea Gillespie, Matthew Guelbert, Chris Starling, Syed Haider, Clare M. Isacke

Summary: Patients with estrogen receptor (ER)-positive breast cancer are at risk of metastatic relapse due to dormant disseminated tumor cells (DTCs) reawakening at secondary sites. Aging or fibrotic microenvironment promotes DTC proliferation and upregulates tumor cell Pdgfc expression, stimulating further stromal activation. This study suggests targeting PDGF-C signaling could limit metastatic relapse in ER+ breast cancer.

NATURE CANCER (2023)

Article Oncology

A Case Report on Longitudinal Collection of Tumour Biopsies for Gene Expression-Based Tumour Microenvironment Analysis from Pancreatic Cancer Patients Treated with Endoscopic Ultrasound Guided Radiofrequency Ablation

Patrick Lawrence, Krisha Desai, Christopher Wadsworth, Nagina Mangal, Hemant M. Kocher, Nagy Habib, Anguraj Sadanandam, Mikael H. Sodergren

Summary: This case study demonstrates the feasibility of using longitudinal EUS-FNAB to study tumor and microenvironmental changes associated with RFA treatment, revealing details of gene expression and immune changes post-treatment.

CURRENT ONCOLOGY (2022)

Proceedings Paper Computer Science, Hardware & Architecture

New Challenges of Benchmarking All-Flash Storage for HPC

Glenn K. Lockwood, Alberto Chiusole, Nicholas J. Wright

Summary: Researchers conducted a preliminary evaluation of a storage system from VAST Data, and found that traditional I/O performance measurement techniques struggle to properly characterize all-flash storage systems. They proposed alternative methods to better reflect the performance that real workflows can expect.

PROCEEDINGS OF IEEE/ACM SIXTH INTERNATIONAL PARALLEL DATA SYSTEMS WORKSHOP (PDSW 2021) (2021)

Proceedings Paper Computer Science, Hardware & Architecture

Understanding power variation and its implications on performance optimization on the Cori supercomputer

Sridutt Bhalachandra, Brian Austin, Nicholas J. Wright

Summary: This study investigates the factors affecting power consumption of the NERSC Cori supercomputer at different levels, identifying node-level and system-level power influences, and revealing potential areas for optimization.

PROCEEDINGS OF PERFORMANCE MODELING, BENCHMARKING AND SIMULATION OF HIGH PERFORMANCE COMPUTER SYSTEMS (PMBS 2021) (2021)

Review Medicine, General & Internal

The accuracy of pre-operative (P)-POSSUM scoring and cardiopulmonary exercise testing in predicting morbidity and mortality after pancreatic and liver surgery: A systematic review

J. Dutton, M. Zardab, V. J. F. De Braal, D. Hariharan, N. MacDonald, S. Hallworth, R. Hutchins, S. Bhattacharya, A. Abraham, H. M. Kocher, V. S. Yip

Summary: POSSUM lacks predictive fit for morbidity in hepatopancreatobiliary surgery, while CPET variables show some predictive power for post-operative outcomes. Developing a new HPB-specific risk prediction tool combining parameters from POSSUM and CPET, along with HPB-specific markers, could overcome current limitations.

ANNALS OF MEDICINE AND SURGERY (2021)

暂无数据