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      Pancreatic acinar cell carcinoma: A comprehensive review

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          Abstract

          Acinar cell carcinoma (ACC) is a rare pancreatic malignancy with distinctive clinical, molecular, and morphological features. The long-term survival of ACC patients is substantially superior to that of pancreatic adenocarcinoma patients. As there are no significant patient series about ACCs, our understanding of this illness is mainly based on case reports and limited patient series. Surgical resection is the treatment of choice for patients with the disease restricted to one organ; however, with recent breakthroughs in precision medicine, medicines targeting the one-of-a-kind molecular profile of ACC are on the horizon. There are no standard treatment protocols available for people in which a total surgical resection to cure the condition is not possible. As a result of shared genetic alterations, ACCs are chemosensitive to agents with activity against pancreatic adenocarcinomas and colorectal carcinomas. The role of neoadjuvant or adjuvant chemoradiotherapy has not been established. This article aims to do a comprehensive literature study and present the most recent information on acinar cell cancer.

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          Most cited references85

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          Mismatch repair deficiency predicts response of solid tumors to PD-1 blockade

          The genomes of cancers deficient in mismatch repair contain exceptionally high numbers of somatic mutations. In a proof-of-concept study, we previously showed that colorectal cancers with mismatch repair deficiency were sensitive to immune checkpoint blockade with antibodies to programmed death receptor-1 (PD-1). We have now expanded this study to evaluate the efficacy of PD-1 blockade in patients with advanced mismatch repair-deficient cancers across 12 different tumor types. Objective radiographic responses were observed in 53% of patients, and complete responses were achieved in 21% of patients. Responses were durable, with median progression-free survival and overall survival still not reached. Functional analysis in a responding patient demonstrated rapid in vivo expansion of neoantigen-specific T cell clones that were reactive to mutant neopeptides found in the tumor. These data support the hypothesis that the large proportion of mutant neoantigens in mismatch repair-deficient cancers make them sensitive to immune checkpoint blockade, regardless of the cancers' tissue of origin.
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            Maintenance Olaparib for Germline <i>BRCA</i> -Mutated Metastatic Pancreatic Cancer

            New England Journal of Medicine, 381(4), 317-327
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              Overall survival in patients with pancreatic cancer receiving matched therapies following molecular profiling: a retrospective analysis of the Know Your Tumor registry trial

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                Author and article information

                Contributors
                Journal
                World J Gastroenterol
                World J Gastroenterol
                WJG
                World Journal of Gastroenterology
                Baishideng Publishing Group Inc
                1007-9327
                2219-2840
                28 October 2022
                28 October 2022
                : 28
                : 40
                : 5827-5844
                Affiliations
                Department of Radiology, University of Florida College of Medicine Jacksonville, Jacksonville, FL 32209, United States. luis.calimanoramirez@ 123456jax.ufl.edu
                Department of Diagnostic Radiology, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, United States
                Department of Diagnostic Radiology, University of Florida College of Medicine Jacksonville, Jacksonville, FL 32209, United States
                Department of Diagnostic Radiology, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, United States
                Department of Pathology and Lab Medicine, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, United States
                Department of Research and Diagnostic Radiology, University of Florida College of Medicine Jacksonville, Jacksonville, FL 32209, United States
                Department of Diagnostic Radiology, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, United States
                Department of Diagnostic Radiology, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, United States
                Department of Diagnostic Radiology, University of Florida College of Medicine Jacksonville, Jacksonville, FL 32209, United States
                Author notes

                Author contributions: All authors equally contributed to this paper with the conception and design of the study, literature review and analysis, drafting, critical revision, editing, and approval of the final version.

                Corresponding author: Luis Fernando Calimano-Ramirez, MD, Research Assistant, Department of Radiology, University of Florida College of Medicine Jacksonville, 655 8 th St. W 2 nd Floor, Jacksonville, FL 32209, United States. luis.calimanoramirez@ 123456jax.ufl.edu

                Article
                jWJG.v28.i40.pg5827
                10.3748/wjg.v28.i40.5827
                9639656
                36353206
                2ca97c0c-6fd9-4f54-81fc-9be519968328
                ©The Author(s) 2022. Published by Baishideng Publishing Group Inc. All rights reserved.

                This article is an open-access article that was selected by an in-house editor and fully peer-reviewed by external reviewers. It is distributed in accordance with the Creative Commons Attribution NonCommercial (CC BY-NC 4.0) license, which permits others to distribute, remix, adapt, build upon this work non-commercially, and license their derivative works on different terms, provided the original work is properly cited and the use is non-commercial.

                History
                : 25 August 2022
                : 14 September 2022
                : 14 October 2022
                Categories
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                acinar cell carcinoma,pancreas,imaging,immunohistochemical stains,molecular features,surgery,chemotherapy

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