Gastric CancerPub Date : 2024-11-01Epub Date: 2024-09-04DOI: 10.1007/s10120-024-01545-y
Wilhelm Leijonmarck, Fredrik Mattsson, Jesper Lagergren
{"title":"Survival among patients cured from gastric adenocarcinoma compared to the background population.","authors":"Wilhelm Leijonmarck, Fredrik Mattsson, Jesper Lagergren","doi":"10.1007/s10120-024-01545-y","DOIUrl":"10.1007/s10120-024-01545-y","url":null,"abstract":"<p><strong>Background: </strong>It is unknown if gastric adenocarcinoma survivors have longer, shorter, or similar survival compared to the background population. This knowledge could contribute to evidence-based monitoring strategies, healthcare recommendations, and information for patients and families.</p><p><strong>Methods: </strong>This population-based cohort study included all patients who underwent gastrectomy for gastric adenocarcinoma between 2006-2015 in Sweden and survived ≥ 5 years after surgery. They were followed up until death, postoperative year 10, or end of study period (31 December, 2020). Division of the observed by the expected survival yielded relative survival rates with 95% confidence intervals (CIs) using the life table method. The expected survival was derived from the entire Swedish population of the corresponding age, sex, and calendar year. Data came from medical records and nationwide registers.</p><p><strong>Results: </strong>The survival among all 767 gastric adenocarcinoma survivors was shorter than the expected. The reduction in relative survival increased for each follow-up year, from 97.3% (95% CI 95.4-99.1%) year 6 to 86.6% (95% CI 82.3-90.9%) year 10. The decline in relative survival was more pronounced among patients who had gastrectomy in earlier calendar years (82.9% [95% CI 77.4-88.4%] year 10 for years 2011-2015), shorter education (85.2% [95% CI 77.4-93.0%] year 10 for education ≤ 9 years), more comorbidities (78.0% [95% CI 63.9-92.0%] year 10 for Charlson comorbidity score ≥ 2), and no neoadjuvant therapy (83.2% [95% CI 77.4-89.0%] year 10).</p><p><strong>Conclusion: </strong>Gastric adenocarcinoma survivors seem to have poorer survival than the corresponding background population, particularly in certain subgroups.</p>","PeriodicalId":12684,"journal":{"name":"Gastric Cancer","volume":" ","pages":"1180-1188"},"PeriodicalIF":6.0,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11513714/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142125448","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Gastric CancerPub Date : 2024-11-01Epub Date: 2024-08-20DOI: 10.1007/s10120-024-01535-0
Narikazu Boku, Takeshi Omori, Kohei Shitara, Shinichi Sakuramoto, Kensei Yamaguchi, Ken Kato, Shigenori Kadowaki, Kunihiro Tsuji, Min-Hee Ryu, Do-Youn Oh, Sang Cheul Oh, Sun Young Rha, Keun-Wook Lee, Ik-Joo Chung, Sun Jin Sym, Li-Tzong Chen, Jen-Shi Chen, Li-Yuan Bai, Takashi Nakada, Shunsuke Hagihara, Reina Makino, Eiji Nishiyama, Yoon-Koo Kang
{"title":"Nivolumab plus chemotherapy in patients with HER2-negative, previously untreated, unresectable, advanced, or recurrent gastric/gastroesophageal junction cancer: 3-year follow-up of the ATTRACTION-4 randomized, double-blind, placebo-controlled, phase 3 trial.","authors":"Narikazu Boku, Takeshi Omori, Kohei Shitara, Shinichi Sakuramoto, Kensei Yamaguchi, Ken Kato, Shigenori Kadowaki, Kunihiro Tsuji, Min-Hee Ryu, Do-Youn Oh, Sang Cheul Oh, Sun Young Rha, Keun-Wook Lee, Ik-Joo Chung, Sun Jin Sym, Li-Tzong Chen, Jen-Shi Chen, Li-Yuan Bai, Takashi Nakada, Shunsuke Hagihara, Reina Makino, Eiji Nishiyama, Yoon-Koo Kang","doi":"10.1007/s10120-024-01535-0","DOIUrl":"10.1007/s10120-024-01535-0","url":null,"abstract":"<p><strong>Background: </strong>Nivolumab + chemotherapy is now a standard of care for HER2-negative, previously untreated, unresectable or recurrent gastric/gastroesophageal junction cancer (advanced gastric cancer), but long-term follow-up data of clinical trials are limited.</p><p><strong>Methods: </strong>ATTRACTON-4 was a phase 3, double-blind, placebo-controlled trial in Japan, South Korea, and Taiwan. Patients were randomized to either nivolumab or placebo, both combined with the physician's choice of SOX (oral S-1 [tegafur-gimeracil-oteracil potassium] + oxaliplatin) or CAPOX (capecitabine + oxaliplatin). We report the primary endpoints-centrally assessed progression-free survival (PFS) and overall survival (OS)-and landmark analyses of OS among patients alive using 3-year follow-up data.</p><p><strong>Results: </strong>At the cutoff date (May 10, 2021), 17/359 patients in the nivolumab + chemotherapy group and 6/358 in the placebo + chemotherapy group were continuing study treatment. PFS (centrally assessed) was longer in the nivolumab + chemotherapy group (median 10.94 vs. 8.48 months; hazard ratio [HR] 0.67, 95% confidence interval [CI] 0.55-0.82). Although OS did not differ between the two groups (median 17.45 vs. 17.15 months; HR 0.89, 95% CI 0.75-1.05), the landmark analysis of OS, calculating HRs at each landmark time point (every month), was getting numerically better in the nivolumab + chemotherapy group over time. Approximately 80% of patients who achieved complete response in the nivolumab + chemotherapy group were alive at 3 years. No new safety signals or major late-onset select treatment-related adverse events were observed for nivolumab + chemotherapy.</p><p><strong>Conclusion: </strong>This 3-year follow-up of ATTRACTION-4 confirmed the long-term clinical benefit and manageable safety of nivolumab + chemotherapy in patients with previously untreated advanced gastric cancer.</p><p><strong>Trial registration: </strong>NCT02746796.</p>","PeriodicalId":12684,"journal":{"name":"Gastric Cancer","volume":" ","pages":"1287-1301"},"PeriodicalIF":6.0,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11513732/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142004064","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Classification of fundic gland polyps for predicting gastric neoplasms in Helicobacter pylori-negative patients with familial adenomatous polyposis.","authors":"Yusaku Shimamoto, Yoji Takeuchi, Shingo Ishiguro, Shin-Ichi Nakatsuka, Hiroshi Yunokizaki, Yasumasa Ezoe, Satoki Shichijo, Akira Maekawa, Takashi Kanesaka, Sachiko Yamamoto, Koji Higashino, Noriya Uedo, Ryu Ishihara, Michihiro Mutoh, Hideki Ishikawa","doi":"10.1007/s10120-024-01539-w","DOIUrl":"10.1007/s10120-024-01539-w","url":null,"abstract":"<p><strong>Background: </strong>In familial adenomatous polyposis (FAP) patients, fundic gland polyps (FGPs) have been considered a risk factor for gastric neoplasms. We speculated that FGPs in FAP patients spread directionally from the greater to the lesser curvature of the gastric body and investigated the relationship between the distribution of FGPs and gastric neoplasm development.</p><p><strong>Methods: </strong>We extracted 195 FAP patients from two institutions and reviewed their medical records. Gastric polyposis was classified based on the FGP distribution (P0, no FGPs; P1, localized in the fundus or greater curvature of the gastric body; P2, spreading to the anterior or posterior wall; P3, involving the proximal half of the lesser curvature; and P4, spreading from P3 to the anal side of the lesser curvature).</p><p><strong>Results: </strong>The 195 eligible patients were divided into the neoplasm group (n = 54, 28%) and the non-neoplasm group (n = 141, 72%). Overall, 24% of the patients were Helicobacter pylori (H. pylori)-positive. In the FGP distribution, the rate of patients with gastric neoplasm tended to increase significantly with each step towards an increasingly wide distribution from P0 to P4 in H. pylori-negative patients, but not in H. pylori-positive ones. In addition, in H. pylori-negative patients, the likelihood of neoplasm increased consistently from P0 to P4, with the highest odds ratio (95% confidence interval) at P4 of 14.1 (2.5-154.4). Furthermore, multivariate analysis showed P4 and Spigelman stage ≥III were significantly associated with gastric neoplasm development.</p><p><strong>Conclusion: </strong>FGP distribution was correlated with gastric neoplasm development in FAP patients.</p>","PeriodicalId":12684,"journal":{"name":"Gastric Cancer","volume":" ","pages":"1311-1319"},"PeriodicalIF":6.0,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142016916","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Gastric CancerPub Date : 2024-11-01Epub Date: 2024-09-09DOI: 10.1007/s10120-024-01550-1
Chisato Hamashima, Akira Fukao
{"title":"Failure of evaluation on ABC classification for gastric cancer screening.","authors":"Chisato Hamashima, Akira Fukao","doi":"10.1007/s10120-024-01550-1","DOIUrl":"10.1007/s10120-024-01550-1","url":null,"abstract":"","PeriodicalId":12684,"journal":{"name":"Gastric Cancer","volume":" ","pages":"1346-1347"},"PeriodicalIF":6.0,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142153745","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Importance of duodenal stump reinforcement to prevent stump leakage after gastrectomy: a large-scale multicenter retrospective study (KSCC DELICATE study).","authors":"Akihiko Sano, Yoshiro Imai, Takahisa Yamaguchi, Takeo Bamba, Naoki Shinno, Yoshiyuki Kawashima, Masanori Tokunaga, Yasuaki Enokida, Tomoya Tsukada, Satoru Hatakeyama, Tadashi Koga, Shirou Kuwabara, Naoki Urakawa, Junichi Arai, Manabu Yamamoto, Itaru Yasufuku, Hironori Iwasaki, Masahiro Sakon, Takuya Honboh, Yoshihiko Kawaguchi, Tetsuya Kusumoto, Kazunori Shibao, Naoki Hiki, Nobuhiro Nakazawa, Makoto Sakai, Makoto Sohda, Ken Shirabe, Eiji Oki, Hideo Baba, Hiroshi Saeki","doi":"10.1007/s10120-024-01538-x","DOIUrl":"10.1007/s10120-024-01538-x","url":null,"abstract":"<p><strong>Background: </strong>The significance of reinforcement of the duodenal stump with seromuscular sutures and the effectiveness of reinforced staplers in preventing duodenal stump leakage remain unclear. We aimed to explore the importance of duodenal stump reinforcement and determine the optimal reinforcement method for preventing duodenal stump leakage.</p><p><strong>Methods: </strong>This retrospective cohort study was conducted between January 1, 2012 and December 31, 2021, with data analyzed between December 1, 2022 and September 30, 2023. This multicenter study across 57 institutes in Japan included 16,475 patients with gastric cancer who underwent radical gastrectomies. Elective open or minimally invasive (laparoscopic or robotic) gastrectomy was performed in patients with gastric cancer.</p><p><strong>Results: </strong>Duodenal stump leakage occurred in 153 (0.93%) of 16,475 patients. The proportions of males, patients aged ≥ 75 years, and ≥ pN1 were higher in patients with duodenal stump leakage than in those without duodenal stump leakage. The incidence of duodenal stump leakage was significantly lower in the group treated with reinforcement by seromuscular sutures or using reinforced stapler than in the group without reinforcement (0.72% vs. 1.19%, p = 0.002). Duodenal stump leakage incidence was also significantly lower in high-volume institutions than in low-volume institutions (0.70% vs. 1.65%, p = 0.047). The rate of duodenal stump leakage-related mortality was 7.8% (12/153). In the multivariate analysis, preoperative asthma and duodenal invasion were identified as independent preoperative risk factors for duodenal stump leakage-related mortality.</p><p><strong>Conclusions: </strong>The duodenal stump should be reinforced to prevent duodenal stump leakage after radical gastrectomy in patients with gastric cancer.</p>","PeriodicalId":12684,"journal":{"name":"Gastric Cancer","volume":" ","pages":"1320-1330"},"PeriodicalIF":6.0,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141723410","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Gastric CancerPub Date : 2024-11-01Epub Date: 2024-08-12DOI: 10.1007/s10120-024-01541-2
Byungyoon Yun, Juyeon Oh, Heejoo Park, Jinsoo Chung, Juho Sim, Jongmin Lee, Yangwook Kim, Jin-Ha Yoon
{"title":"Impact of early economic activity loss on all-cause mortality in gastric cancer survivors following curative treatment: a nationwide study in Korea.","authors":"Byungyoon Yun, Juyeon Oh, Heejoo Park, Jinsoo Chung, Juho Sim, Jongmin Lee, Yangwook Kim, Jin-Ha Yoon","doi":"10.1007/s10120-024-01541-2","DOIUrl":"10.1007/s10120-024-01541-2","url":null,"abstract":"<p><strong>Background: </strong>The impact of economic engagement on the health of cancer survivors is notable. Our study aims to explore the association between early loss of economic activity (EA) and the risk of all-cause mortality among gastric cancer survivors.</p><p><strong>Methods: </strong>This retrospective cohort study utilized data from Korea's National Health Insurance Service, focusing on 30-59-year-old gastric cancer patients who received either surgery or endoscopic procedures from January 2009 to December 2013. The primary outcome measure was all-cause mortality. Early loss of EA was identified when a patient's insurance status shifted to dependent within one year following treatment. Adjusted hazard ratios (HRs) and 95% confidence intervals (CI) for all-cause mortality were estimated using multivariable Cox proportional hazards models, conducting separate analyses for surgical and endoscopic groups.</p><p><strong>Results: </strong>Among 24,159 patients (median follow-up, 9.9 years), 2976 (12.3%) experienced all-cause mortality. Specifically, 2835 of these deaths occurred in patients who underwent surgery, while 141 were in the endoscopic procedure group. Early loss of EA was recorded in 14.4% of the surgery group and 7.7% of the endoscopic procedure group. Adjusted HRs (95% CI) for all-cause mortality associated with early loss of EA were 1.39 (1.27-1.54) for the surgery group and 2.27 (1.46-3.52) for the endoscopic procedure group.</p><p><strong>Conclusions: </strong>This study highlights a significant association between the early loss of EA and an increased risk of all-cause mortality in those who have undergone curative treatments for gastric cancer. It underscores the crucial role of sustaining EA in enhancing the health outcomes of these survivors.</p>","PeriodicalId":12684,"journal":{"name":"Gastric Cancer","volume":" ","pages":"1159-1168"},"PeriodicalIF":6.0,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141916564","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Gastric CancerPub Date : 2024-11-01Epub Date: 2024-07-20DOI: 10.1007/s10120-024-01537-y
Ozen Leylek, Megan E Honeywell, Michael J Lee, Michael T Hemann, Gulnihal Ozcan
{"title":"Functional genomics reveals an off-target dependency of drug synergy in gastric cancer therapy.","authors":"Ozen Leylek, Megan E Honeywell, Michael J Lee, Michael T Hemann, Gulnihal Ozcan","doi":"10.1007/s10120-024-01537-y","DOIUrl":"10.1007/s10120-024-01537-y","url":null,"abstract":"<p><strong>Background: </strong>Integrating molecular-targeted agents into combination chemotherapy is transformative for enhancing treatment outcomes in cancer. However, realizing the full potential of this approach requires a clear comprehension of the genetic dependencies underlying drug synergy. While the interactions between conventional chemotherapeutics are well-explored, the interplay of molecular-targeted agents with conventional chemotherapeutics remains a frontier in cancer treatment. Hence, we leveraged a powerful functional genomics approach to decode genomic dependencies that drive synergy in molecular-targeted agent/chemotherapeutic combinations in gastric adenocarcinoma, addressing a critical need in gastric cancer therapy.</p><p><strong>Methods: </strong>We screened pharmacological interactions between fifteen molecular-targeted agent/conventional chemotherapeutic pairs in gastric adenocarcinoma cells, and examined the genome-scale genetic dependencies of synergy integrating genome-wide CRISPR screening with the shRNA-based signature assay. We validated the synergy in cell death using fluorescence-based and lysis-dependent inference of cell death kinetics assay, and validated the genetic dependencies by single-gene knockout experiments.</p><p><strong>Results: </strong>Our combination screen identified SN-38/erlotinib as the drug pair with the strongest synergism. Functional genomics assays unveiled a genetic dependency signature of SN-38/erlotinib identical to SN-38. Remarkably, the enhanced cell death with improved kinetics induced by SN-38/erlotinib was attributed to erlotinib's off-target effect, inhibiting ABCG2, rather than its on-target effect on EGFR.</p><p><strong>Conclusion: </strong>In the era of precision medicine, where emphasis on primary drug targets prevails, our research challenges this paradigm by showcasing a robust synergy underpinned by an off-target dependency. Further dissection of the intricate genetic dependencies that underlie synergy can pave the way to developing more effective combination strategies in gastric cancer therapy.</p>","PeriodicalId":12684,"journal":{"name":"Gastric Cancer","volume":" ","pages":"1201-1219"},"PeriodicalIF":6.0,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11513712/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141733868","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Management challenges and the role of adjuvant chemotherapy in remnant gastric cancer: an analysis of 313 patients from the KEGG multicenter observational study.","authors":"Ryosuke Okamura, Ryuhei Aoyama, Shigeru Tsunoda, Yoshito Yamashita, Hiroaki Hata, Yosuke Kinjo, Akira Miki, Seiichiro Kanaya, Michihiro Yamamoto, Koichi Matsuo, Dai Manaka, Eiji Tanaka, Hironori Kawada, Masato Kondo, Atsushi Itami, Takatsugu Kan, Yoshio Kadokawa, Tetsuo Ito, Shunpei Jikihara, Keiko Kasahara, Takashi Sakamoto, Shintaro Okumura, Hisatsugu Maekawa, Tatsuto Nishigori, Shigeo Hisamori, Kazutaka Obama","doi":"10.1007/s10120-024-01544-z","DOIUrl":"10.1007/s10120-024-01544-z","url":null,"abstract":"<p><strong>Background: </strong>Clinical findings and postoperative follow-up data on remnant gastric cancer (RGC) are limited due to its rarity. Additionally, the preoperative staging, radical surgery, and managing recurrence in RGC present significant clinical challenges.</p><p><strong>Methods: </strong>We analyzed the clinicopathological findings, adjuvant chemotherapy, and patterns of postoperative recurrence of 313 consecutive patients who underwent curative surgery for RGC at 17 Japanese institutions. This study investigated the optimal management of RGC and the impact of adjuvant chemotherapy (AC) on recurrence-free survival (RFS).</p><p><strong>Results: </strong>Pathological stages I, II, and III were observed in 55.9% (N = 175), 24.9% (N = 78), and 19.2% (N = 60) of the patients, respectively. The overall concordance rate between clinical and pathological T staging was 58.3%, with a clinical T4 sensitivity of 41.4% for diagnosing pathological T4. During the median follow-up period of 4.6 years, disease recurrence occurred in 24.3% of patients. Most recurrences (over 80%) occurred within 2.5 years, and 96.1% within 5 years after RGC surgery. Peritoneal recurrence was the most common in patients with advanced RGC, accounting for 14.1% in stage II and 28.3% in stage III. Multivariable regression analysis showed that AC was significantly associated with a longer RFS, with a hazard ratio of 0.45 (95% confidence interval: 0.26-0.76).</p><p><strong>Conclusions: </strong>Our study underscores the importance of early detection, accurate preoperative staging, and postoperative surveillance in managing advanced RGC cases. Despite some limitations, our findings indicate that AC may provide survival benefits comparable to those seen in primary gastric cancer.</p>","PeriodicalId":12684,"journal":{"name":"Gastric Cancer","volume":" ","pages":"1302-1310"},"PeriodicalIF":6.0,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141901449","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"The molecular profile of gastric intraepithelial foveolar type neoplasia based on somatic copy number alterations and multiple mutation analysis.","authors":"Tamotsu Sugai, Noriyuki Uesugi, Mitsumasa Osakabe, Ryuya Yamamoto, Koichi Hamada, Michitaka Honda, Naoki Yanagawa, Hiromu Suzuki","doi":"10.1007/s10120-024-01543-0","DOIUrl":"10.1007/s10120-024-01543-0","url":null,"abstract":"<p><strong>Background: </strong>Gastric foveolar type neoplasia is a rare histological variant of gastric tumors. It is very difficult to differentiate between benign and malignant intraepithelial foveolar neoplasia (IFN). Although limited molecular alterations have been identified in IFNs, somatic copy number alterations (SCNAs), which are linked to tumor progression, have not been systematically evaluated in IFN.</p><p><strong>Methods: </strong>The aim of the present study was to comprehensively examine SCNAs using a SNP array in 37 cases of IFN, compared with intestinal type dysplasia, including 39 low grade (LGD) and 32 high grade dysplasia (HGD) cases. In addition, gene mutations were evaluated using a gene panel. Finally, we attempted to determine molecular profiles using a hierarchical clustering analysis.</p><p><strong>Results: </strong>Two patterns could be categorized according to the SCNAs in 108 tumors examined: high (subgroup 1) and low (subgroup 2) frequencies of SCNAs. Although IFN and LGD were associated with subgroup 2, HGD was found in both subgroups. The median numbers of total SCNAs and copy number gains were higher in IFN or HGD than in LGD. In addition, the IFN genotype was characterized by altered genes located at 4p13-4q35.2, including RAP1GDS1 and LEF1, which may be associated with IFN development. Finally, no significant mutations were found in IFNs using a gene panel.</p><p><strong>Conclusions: </strong>The current molecular profiles of IFN may help elucidate the mechanisms of IFN development.</p>","PeriodicalId":12684,"journal":{"name":"Gastric Cancer","volume":" ","pages":"1220-1228"},"PeriodicalIF":6.0,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11513720/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141916565","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Gastric CancerPub Date : 2024-11-01DOI: 10.1007/s10120-024-01549-8
Seunghan Lee, Jiwoon Jeon, Jinbae Park, Young Hoon Chang, Cheol Min Shin, Mi Jin Oh, Su Hyun Kim, Seungkyung Kang, Su Hee Park, Sang Gyun Kim, Hyuk-Joon Lee, Han-Kwang Yang, Hey Seung Lee, Soo-Jeong Cho
{"title":"Correction: An artificial intelligence system for comprehensive pathologic outcome prediction in early gastric cancer through endoscopic image analysis (with video).","authors":"Seunghan Lee, Jiwoon Jeon, Jinbae Park, Young Hoon Chang, Cheol Min Shin, Mi Jin Oh, Su Hyun Kim, Seungkyung Kang, Su Hee Park, Sang Gyun Kim, Hyuk-Joon Lee, Han-Kwang Yang, Hey Seung Lee, Soo-Jeong Cho","doi":"10.1007/s10120-024-01549-8","DOIUrl":"10.1007/s10120-024-01549-8","url":null,"abstract":"","PeriodicalId":12684,"journal":{"name":"Gastric Cancer","volume":" ","pages":"1351"},"PeriodicalIF":6.0,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11513751/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142125447","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}