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Pancreatic Neoplasms: HELP
Articles by Martin R. Jones
Based on 3 articles published since 2010
(Why 3 articles?)

Between 2010 and 2020, Martin Jones wrote the following 3 articles about Pancreatic Neoplasms.
+ Citations + Abstracts
1 Article None 2019

Jones, Martin R / Williamson, Laura M / Topham, James T / Lee, Michael K C / Goytain, Angela / Ho, Julie / Denroche, Robert E / Jang, GunHo / Pleasance, Erin / Shen, Yaoquing / Karasinska, Joanna M / McGhie, John P / Gill, Sharlene / Lim, Howard J / Moore, Malcolm J / Wong, Hui-Li / Ng, Tony / Yip, Stephen / Zhang, Wei / Sadeghi, Sara / Reisle, Carolyn / Mungall, Andrew J / Mungall, Karen L / Moore, Richard A / Ma, Yussanne / Knox, Jennifer J / Gallinger, Steven / Laskin, Janessa / Marra, Marco A / Schaeffer, David F / Jones, Steven J M / Renouf, Daniel J. ·BC Cancer, Canada's Michael Smith Genome Sciences Centre, Vancouver, British Columbia, Canada. · Pancreas Centre British Columbia, Vancouver, Canada. · BC Cancer, Division of Medical Oncology, Vancouver, British Columbia, Canada. · Department of Pathology and Laboratory Medicine, Vancouver General Hospital, Vancouver, British Columbia, Canada. · PanCuRx Translational Research Initiative, Ontario Institute for Cancer Research, Toronto, Ontario, Canada. · Division of Medical Oncology, Princess Margaret Cancer Centre, Toronto, Ontario, Canada. · Lunenfeld Tanenbaum Research Institute, Mount Sinai Hospital, Toronto, Ontario, Canada. · Department of Medical Genetics, University of British Columbia, Vancouver, British Columbia, Canada. · Department of Molecular Biology and Biochemistry, Simon Fraser University, Vancouver, British Columbia, Canada. · Pancreas Centre British Columbia, Vancouver, Canada. drenouf@bccancer.bc.ca. ·Clin Cancer Res · Pubmed #31068372.

ABSTRACT: PURPOSE: Gene fusions involving neuregulin 1 ( EXPERIMENTAL DESIGN: Forty-seven patients with pancreatic ductal adenocarcinoma received comprehensive whole-genome and transcriptome sequencing and analysis. Two patients with gene fusions involving RESULTS: Three of 47 (6%) patients with advanced pancreatic ductal adenocarcinoma were identified as CONCLUSIONS: This work adds to a growing body of evidence that

2 Article Next-generation sequencing adds value to the preoperative diagnosis of pancreatic cysts. 2017

Rosenbaum, Matthew W / Jones, Martin / Dudley, Jonathan C / Le, Long P / Iafrate, A John / Pitman, Martha B. ·Department of Pathology, Massachusetts General Hospital, Boston, Massachusetts. · Department of Anatomical Pathology, Concord Repatriation General Hospital, Sydney, Australia. · Department of Pathology, Stanford University, Stanford, California. ·Cancer Cytopathol · Pubmed #27647802.

ABSTRACT: BACKGROUND: The diagnosis of a pancreatic cyst as mucinous or high-risk dictates the need for follow-up or surgery. Molecular analysis of aspirated pancreatic cyst fluid (PCF) can provide valuable information not obtained by carcinoembryonic antigen (CEA) analysis or cytology. METHODS: All patients who underwent molecular analysis of PCF between March 2013 and June 2015 were reviewed, including pathology, imaging, and follow-up. Molecular testing was performed using a patented, anchored multiplex polymerase chain reaction next-generation sequencing (NGS) platform, which sequenced numerous hotspots in 39 genes linked with malignancy. Performance of NGS and cytology was calculated using final outcome, as determined by clinicopathologic follow-up. RESULTS: The study cohort included 113 PCFs from 105 patients. In total, 119 variants were detected in 67 PCFs (59%). Variants were more common in intraductal papillary mucinous neoplasms (IPMNs)/cancer than in nonmucinous cysts (P < .005). The inclusion of v-Ki-ras2 Kirsten rat sarcoma viral oncogene homolog (KRAS)/guanine nucleotide-binding protein (GNAS) variants improved the classification of IPMNs as mucinous from 50% by microscopy to 100%. Seventy-five percent of cancers had high-grade atypia versus 0% of IPMNs and nonmucinous cysts (P < .002). Variants in tumor protein 53 (TP53), SMAD family member 4 (SMAD4), cyclin-dependent kinase inhibitor 2A (CDKN2A), and notch1 (NOTCH1) were detected only in malignant cysts. Cytology was similarly specific (100%) for detecting malignant cysts but was more sensitive than the identification of late mutations by NGS (75% vs 46%). CONCLUSIONS: The detection of KRAS/GNAS variants improves the identification of mucinous neoplasms. Variants in TP53, SMAD4, CDKN2A, and NOTCH1 support the diagnosis of a high-risk cyst requiring surgery or additional sampling. Although molecular analysis is not a replacement for cytopathology, it does provide valuable information for accurate preoperative diagnosis, helping to classify mucinous neoplasms and high-risk cysts that require surgical resection. Cancer Cytopathol 2017;125:41-47. © 2016 American Cancer Society.

3 Article Impact of next-generation sequencing on the clinical diagnosis of pancreatic cysts. 2016

Jones, Martin / Zheng, Zongli / Wang, Jessica / Dudley, Jonathan / Albanese, Emily / Kadayifci, Abdurrahman / Dias-Santagata, Dora / Le, Long / Brugge, William R / Fernandez-del Castillo, Carlos / Mino-Kenudson, Mari / Iafrate, A John / Pitman, Martha B. ·Department of Pathology, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts, USA. · Department of Medicine, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts, USA. · Department of Surgery, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts, USA. ·Gastrointest Endosc · Pubmed #26253016.

ABSTRACT: BACKGROUND AND AIMS: The value of next-generation sequencing (NGS) of pancreatic cyst fluid relative to the clinical and imaging impression has not been well-studied. The aim of this study was to assess the impact of NGS on the clinical diagnosis from imaging and carcinoembryonic antigen (CEA) and thus the management of pancreatic cysts. METHODS: Ninety-two pancreatic cyst fluids from 86 patients were analyzed by cytology, CEA, and targeted NGS. Cysts were classified by imaging as nonmucinous, mucinous, or not specified. NGS results were compared with the imaging impression stratified by CEA and cytology. RESULTS: NGS impacted the clinical diagnosis by defining a cyst as mucinous in 48% of cysts without elevated CEA levels. The VHL gene in 2 intraductal papillary mucinous neoplasms (IPMNs) supported a serous cystadenoma. Twenty percent of cysts that were nonmucinous by imaging were mucinous by NGS. Of the 14 not-specific cysts, CEA levels were not elevated in 12 (86%), and NGS established a mucinous etiology in 3 (25%). A KRAS or GNAS mutation supported an IPMN with nonmucinous CEA in 71%. A KRAS mutation reclassified 19% of nonneoplastic cysts with nonmucinous CEA as mucinous. Seven cyst fluids (8%) had either a TP53 mutation or loss of CDKN2A or SMAD4 in addition to KRAS and/or GNAS mutations; 5 of 7 (71%) were clinically malignant, and high-grade cytology was detected in all 5. Overall, CEA was more specific for a mucinous etiology (100%), but NGS was more sensitive (86% vs 57%). CONCLUSIONS: NGS of pancreatic cyst fluid impacts clinical diagnosis and patient management by defining, supporting, or changing the clinical diagnosis based on imaging and CEA. NGS was most valuable in identifying mucinous cysts with nonmucinous CEA. An added benefit is the potential to detect mutations late in the progression to malignancy that may increase the risk classification of the cyst based on imaging and cytology.