Tu2013 - Human Organoid Models of Intraductal Papillary Mucinous Neoplasm (IPMN) Derived from Pancreatic Juice

2018 ◽  
Vol 154 (6) ◽  
pp. S-1369
Author(s):  
Emiri Kita ◽  
Kentaro Sudo ◽  
Taro Hara ◽  
Yoshiaki Maru ◽  
Taketo Yamaguchi ◽  
...  
Keyword(s):  
Pancreatic Juice ◽  
Intraductal Papillary Mucinous Neoplasm ◽  
Mucinous Neoplasm

scholarly journals The efficacy of pancreatic juice cytology with liquid-based cytology for evaluating malignancy in patients with intraductal papillary mucinous neoplasm

2020 ◽  
Vol 20 (1) ◽  
Author(s):  
Kazuya Miyamoto ◽  
Kazuyuki Matsumoto ◽  
Hironari Kato ◽  
Ryuichi Yoshida ◽  
Yuzo Umeda ◽  
...  
Keyword(s):  
Pancreatic Juice ◽  
Intraductal Papillary Mucinous Neoplasm ◽  
Low Grade ◽  
Cell Recovery ◽  
International Consensus ◽  
Mucinous Neoplasm ◽  
Liquid Based Cytology ◽  
Pancreatic Juice Cytology ◽  
Almost All ◽  
Malignant Ipmn

Abstract Background Pancreatic juice cytology (PJC) is a tool for diagnosing malignant intraductal papillary mucinous neoplasm (IPMN); however, the accuracy is insufficient using the conventional method. Liquid-based cytology (LBC) improves the cell recovery rate, and almost all cells can be evaluated. We evaluated the efficacy of PJC with LBC for malignant IPMN. Methods We retrospectively analyzed 90 patients with suspected malignant IPMN who underwent PJC before pancreatectomy. PJC with smear and LBC methods was conducted in 52 patients (between June 2003 to December 2011) and 38 patients (between January 2012 to December 2018). Based on the imaging studies, all of the patients were classified according to the international consensus guidelines for IPMN revised in 2017. Results Of the 90 patients, 43 (48%) had malignant IPMN (high-grade dysplasia or invasive carcinoma), and the remaining patients had non-malignant IPMN (intermediate- or low-grade dysplasia). LBC increased the accuracy of PJC for the diagnosis of malignant IPMN (smear method: 56% [29/52] vs. LBC method: 76% [29/38]; P = 0.044). In a multivariate analysis, LBC was a significant factor influencing the accurate diagnosis of PJC (odds ratio: 3.52; P = 0.021). Furthermore, LBC increased the accuracy of PJC for malignant IPMN in patients with worrisome features (smear method: 66% [19/29] vs. LBC method: 93% [14/15]; P = 0.043). Conclusions LBC increases the accuracy of PJC for diagnosing malignant IPMN compared with the conventional smear method.

scholarly journals Genomic analysis of pancreatic juice DNA assesses malignant risk of intraductal papillary mucinous neoplasm of pancreas

2019 ◽  
Vol 8 (10) ◽  
pp. 4565-4573 ◽  
Author(s):  
Raúl N. Mateos ◽  
Hidewaki Nakagawa ◽  
Seiko Hirono ◽  
Shinichi Takano ◽  
Mitsuharu Fukasawa ◽  
...  
Keyword(s):  
Pancreatic Juice ◽  
Intraductal Papillary Mucinous Neoplasm ◽  
Genomic Analysis ◽  
Mucinous Neoplasm

scholarly journals MiR-10a in Pancreatic Juice as a Biomarker for Invasive Intraductal Papillary Mucinous Neoplasm by miRNA Sequencing

2021 ◽  
Vol 22 (6) ◽  
pp. 3221
Author(s):  
Natsuhiko Kuratomi ◽  
Shinichi Takano ◽  
Mitsuharu Fukasawa ◽  
Shinya Maekawa ◽  
Makoto Kadokura ◽  
...  
Keyword(s):  
Pancreatic Juice ◽  
Intraductal Papillary Mucinous Neoplasm ◽  
Invasive Carcinoma ◽  
Sequence Data ◽  
Mirna Sequence ◽  
Tissue Analysis ◽  
Mucinous Neoplasm ◽  
Paired Samples ◽  
Mirna Sequencing ◽  
Invasive Ipmn

New biomarkers are needed to further stratify the risk of malignancy in intraductal papillary mucinous neoplasm (IPMN). Although microRNAs (miRNAs) are expected to be stable biomarkers, they can vary owing to a lack of definite internal controls. To identify universal biomarkers for invasive IPMN, we performed miRNA sequencing using tumor-normal paired samples. A total of 19 resected tissues and 13 pancreatic juice samples from 32 IPMN patients were analyzed for miRNA expression by next-generation sequencing with a two-step normalization of miRNA sequence data. The miRNAs involved in IPMN associated with invasive carcinoma were identified from this tissue analysis and further verified with the pancreatic juice samples. From the tumor-normal paired tissue analysis of the expression levels of 2792 miRNAs, 20 upregulated and 17 downregulated miRNAs were identified. In IPMN associated with invasive carcinoma (INV), miR-10a-5p and miR-221-3p were upregulated and miR-148a-3p was downregulated when compared with noninvasive IPMN. When these findings were further validated with pancreatic juice samples, miR-10a-5p was found to be elevated in INV (p = 0.002). Therefore, three differentially expressed miRNAs were identified in tissues with INV, and the expression of miR-10a-5p was also elevated in pancreatic juice samples with INV. MiR-10a-5p is a promising additional biomarker for invasive IPMN.

scholarly journals The efficacy of pancreatic juice cytology with liquid-based cytology for evaluating malignancy in patients with intraductal papillary mucinous neoplasm

2020 ◽  
Author(s):  
Kazuya Miyamoto ◽  
Kazuyuki Matsumoto ◽  
Hironari Kato ◽  
Ryuichi Yoshida ◽  
Yuzo Umeda ◽  
...  
Keyword(s):  
Pancreatic Juice ◽  
Intraductal Papillary Mucinous Neoplasm ◽  
Low Grade ◽  
Cell Recovery ◽  
International Consensus ◽  
Mucinous Neoplasm ◽  
Liquid Based Cytology ◽  
Pancreatic Juice Cytology ◽  
Almost All ◽  
Malignant Ipmn

Abstract Background: Pancreatic juice cytology (PJC) is a tool for diagnosing malignant intraductal papillary mucinous neoplasm (IPMN); however, the accuracy is insufficient using the conventional method. Liquid-based cytology (LBC) improves the cell recovery rate, and almost all cells can be evaluated. We evaluated the efficacy of PJC with LBC for malignant IPMN. Methods: We retrospectively analyzed 90 patients with suspected malignant IPMN who underwent PJC before pancreatectomy. PJC with smear and LBC methods was conducted in 52 patients (between June 2003 to December 2011) and 38 patients (between January 2012 to December 2018). Based on the imaging studies, all of the patients were classified according to the international consensus guidelines for IPMN revised in 2017.Results: Of the 90 patients, 43 (48%) had malignant IPMN (high-grade dysplasia or invasive carcinoma), and the remaining patients had non-malignant IPMN (intermediate- or low-grade dysplasia). LBC increased the accuracy of PJC for the diagnosis of malignant IPMN (smear method: 56% [29/52] vs. LBC method: 76% [29/38]; P = 0.044). In a multivariate analysis, LBC was a significant factor influencing the accurate diagnosis of PJC (odds ratio: 3.52; P = 0.021). Furthermore, LBC increased the accuracy of PJC for malignant IPMN in patients with worrisome features (smear method: 66% [19/29] vs. LBC method: 93% [14/15]; P = 0.043). Conclusions: LBC increases the accuracy of PJC for diagnosing malignant IPMN compared with the conventional smear method.

scholarly journals The efficacy of pancreatic juice cytology with liquid-based cytology for evaluating malignancy in patients with intraductal papillary mucinous neoplasm

2020 ◽  
Author(s):  
Kazuya Miyamoto ◽  
Kazuyuki Matsumoto ◽  
Hironari Kato ◽  
Ryuichi Yoshida ◽  
Yuzo Umeda ◽  
...  
Keyword(s):  
Pancreatic Juice ◽  
Intraductal Papillary Mucinous Neoplasm ◽  
Low Grade ◽  
Cell Recovery ◽  
International Consensus ◽  
Mucinous Neoplasm ◽  
Liquid Based Cytology ◽  
Pancreatic Juice Cytology ◽  
Almost All ◽  
Malignant Ipmn

Abstract Background Pancreatic juice cytology (PJC) is a tool for diagnosing malignant intraductal papillary mucinous neoplasm (IPMN); however, the accuracy is insufficient using the conventional method. Liquid-based cytology (LBC) improves the cell recovery rate, and almost all cells can be evaluated. We evaluated the efficacy of PJC with LBC for malignant IPMN. Methods We retrospectively analyzed 90 patients with suspected malignant IPMN who underwent PJC before pancreatectomy. PJC with smear and LBC methods was conducted in 52 patients (between June 2003 to December 2011) and 38 patients (between January 2012 to December 2018). Based on the imaging studies, all of the patients were classified according to the international consensus guidelines for IPMN revised in 2017. Results Of the 90 patients, 43 (48%) had malignant IPMN (high-grade dysplasia or invasive carcinoma), and the remaining patients had non-malignant IPMN (intermediate- or low-grade dysplasia). LBC increased the accuracy of PJC for the diagnosis of malignant IPMN (smear method: 56% [29/52] vs. LBC method: 76% [29/38]; P = 0.044). In a multivariate analysis, LBC was a significant factor influencing the accurate diagnosis of PJC (odds ratio: 3.52; P = 0.021). Furthermore, LBC increased the accuracy of PJC for malignant IPMN in patients with worrisome features (smear method: 66% [19/29] vs. LBC method: 93% [14/15]; P = 0.043). Conclusions LBC increases the accuracy of PJC for diagnosing malignant IPMN compared with the conventional smear method.

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