Article
Medicine, General & Internal
Jean-Yves Blay, Yoon-Koo Kang, Toshiroo Nishida, Margaret von Mehren
Summary: Gastrointestinal stromal tumours (GIST) are rare malignancies with 80% of cases having KIT or PDGFRA activating mutations. Localized GIST can be cured through surgery, while advanced resistant GIST with resistance mutations require treatment with new drugs.
NATURE REVIEWS DISEASE PRIMERS
(2021)
Article
Oncology
Seong-Ho Kong, Yukinori Kurokawa, Jeong-Hwan Yook, Haruhiko Cho, Oh-Kyoung Kwon, Toru Masuzawa, Kyung Hee Lee, Sohei Matsumoto, Young Soo Park, Hiroshi Honda, Seung-Wan Ryu, Takashi Ishikawa, Hye Jin Kang, Kazuhito Nabeshima, Seock-Ah Im, Toshio Shimokawa, Yoon-Koo Kang, Seiichi Hirota, Han-Kwang Yang, Toshirou Nishida
Summary: This study confirms that neoadjuvant imatinib treatment is an effective option for gastric GISTs. It reduces tumor size and increases the rate of R0 resection. Postoperative imatinib treatment is recommended to minimize the risk of recurrence.
Article
Oncology
Michael C. Heinrich, Christopher L. Corless, George D. Demetri, Charles D. Blanke, Margaret von Mehren, Heikki Joensuu, Laura S. Mcgreevey, Chang-Jie Chen, Annick D. van den Abbeele, Brian J. Druker, Beate Kiese, Burton Eisenberg, Peter J. Roberts, Samuel Singer, Christopher D. M. Fletcher, Sandra Silberman, Sasa Dimitrijevic, Jonathan A. Fletcher
Summary: This study found that most GISTs have activating mutations in KIT or PDGFRA, and the occurrence of these mutations is related to clinical response to imatinib. PDGFRA mutations can explain the response and sensitivity to imatinib in some GISTs without KIT mutations.
JOURNAL OF CLINICAL ONCOLOGY
(2023)
Article
Oncology
Vaibhav Kumar, Leslie Doros, Margaret Thompson, Sirisha L. Mushti, Rosane Charlab, Elizabeth I. Spehalski, Hong Zhao, Matthew D. Thompson, Shenghui Tang, Richard Pazdur, Steven J. Lemery, Marc R. Theoret, Lola A. Fashoyin-Aje
Summary: On May 15, 2020, the FDA approved ripretinib for adult patients with advanced gastrointestinal stromal tumor who have received prior treatment with three or more kinase inhibitors, including imatinib. The approval was based on results from the INVICTUS trial, which showed a significant improvement in progression-free survival for patients in the ripretinib group compared to the placebo group. The median overall survival was also longer in the ripretinib group.
CLINICAL CANCER RESEARCH
(2023)
Article
Biochemistry & Molecular Biology
Xiangchen Hu, Peng Su, Bo Liu, Jingwei Guo, Zitong Wang, Cai He, Zhe Wang, Youwei Kou
Summary: In this study, an immortalized human GIST cell line (ImGIST) was successfully established by transfecting simian virus 40 large T antigen (SV40LT) into primary GIST cells. The ImGIST cells exhibited irregular radioactive growth resembling neuronal cells, retained the fusion growth characteristics of GIST cells, and stably expressed signature proteins. They maintained the biological and genomic characteristics of normal primary GIST cells and showed a positive response to imatinib, suggesting that ImGIST could serve as a potential in vitro model for studying the molecular pathogenesis, drug resistance mechanisms, and development of new adjuvant therapeutic options in GIST research.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2023)
Article
Oncology
Yeong Hak Bang, Min-Hee Ryu, Hyung-Don Kim, Hyung Eun Lee, Yoon-Koo Kang
Summary: This registry-based study investigated the safety and efficacy of 3-year imatinib treatment in high-risk GIST patients, and found that tumor rupture, large tumor size, and high mitotic count were associated with poor recurrence-free survival.
INTERNATIONAL JOURNAL OF CANCER
(2022)
Article
Oncology
Anwei Xue, Xiaodong Gao, Yifeng He, Ping Shu, Xiaowu Huang, Jianyi Sun, Jiangshen Lu, Yingyong Hou, Yong Fang, Kuntang Shen
Summary: Based on the retrospective analysis, addition of hepatectomy in patients with localized liver metastases from GIST can provide longer disease control.
FRONTIERS IN ONCOLOGY
(2022)
Review
Oncology
Xiangchen Hu, Zhe Wang, Peng Su, Qiqi Zhang, Youwei Kou
Summary: This review discusses and summarizes the research on the mechanisms of secondary resistance to Imatinib Mesylate (IM) in Gastrointestinal Stromal Tumors (GISTs) conducted in the last 5 years, focusing on abnormal energy metabolism, gene mutations, non-coding RNA, and key proteins. The study found that different drug-resistance mechanism networks are closely linked and interconnected, and the combined inhibition of these mechanisms could potentially become new therapeutic options for GIST treatment. Implementing individualized therapies based on the identification of resistance mechanisms may also provide new adjuvant treatment options for IM-resistant GISTs, delaying the progression of the disease.
FRONTIERS IN ONCOLOGY
(2022)
Article
Gastroenterology & Hepatology
Michael J. Cavnar, Kenneth Seier, Mithat Gonen, Christina Curtin, Vinod P. Balachandran, William D. Tap, Cristina R. Antonescu, Sam Singer, Ronald P. DeMatteo
Summary: In primary GIST undergoing Neo-IM therapy, progression was uncommon, but substantial down-sizing occurred in the minority. High tumor mitotic rate and incomplete resection following Neo-IM were associated with poor outcome, while adjuvant imatinib was associated with prolonged survival.
JOURNAL OF GASTROINTESTINAL SURGERY
(2021)
Article
Oncology
Thomas L. Sutton, Brett S. Walker, Kevin G. Billingsley, Christopher L. Corless, Brett C. Sheppard, Michael C. Heinrich, Skye C. Mayo
Summary: This study aimed to evaluate predictors of 10-year metastatic survivorship in patients with gastrointestinal stromal tumors (GIST) treated with tyrosine kinase inhibitor therapy. The results showed that 10-year survivorship is achievable in GIST patients in the era of tyrosine kinase inhibitors, and it is associated with younger age and longer time to first progression.
ANNALS OF SURGICAL ONCOLOGY
(2022)
Review
Oncology
Cesar Serrano, Javier Martin-Broto, Jose Manuel Asencio-Pascual, Jose Antonio Lopez-Guerrero, Jordi Rubio-Casadevall, Silvia Bague, Xavier Garcia-del-Muro, Juan angel Fernandez-Hernandez, Luis Herrero, Antonio Lopez-Pousa, Andres Poveda, Virginia Martinez-Marin, GEIS Grp Espanol Invest en Sarcomas, Spanish Grp Sarcoma Res
Summary: Gastrointestinal stromal tumor (GIST) is a common malignant tumor of mesenchymal origin with a wide clinical spectrum. Gain-of-function mutations in KIT or PDGFRA receptor tyrosine kinases are the crucial drivers of most GISTs, and targeted tyrosine kinase inhibitors have significantly improved outcomes in the treatment of this previously chemoresistant cancer. This review provides evidence-based guidelines for the management of GIST, developed by a multidisciplinary expert panel, and offers a standard approach for diagnosis, treatment, and follow-up.
THERAPEUTIC ADVANCES IN MEDICAL ONCOLOGY
(2023)
Review
Oncology
Shreyaskumar R. Patel, Peter Reichardt
Summary: In the past 20 years, significant progress has been made in the treatment of patients with GISTs using tyrosine kinase inhibitors (TKIs) such as imatinib, sunitinib, and regorafenib. The recent approvals of ripretinib and avapritinib have further expanded treatment options for patients.
Article
Medicine, General & Internal
Xuechao Liu, Enyu Lin, Yuqi Sun, Xiaodong Liu, Zequn Li, Xuelong Jiao, Yi Li, Dong Guo, Peng Zhang, Xingyu Feng, Tao Chen, Zhaojian Niu, Zhiwei Zhou, Haibo Qiu, Yanbing Zhou
Summary: In this study, a more comprehensive prognostic nomogram for predicting the overall survival of GIST patients was developed and validated. It was found that postoperative adjuvant imatinib therapy improved the survival of these patients. The nomogram, which considered factors such as age, tumor characteristics, and other variables, showed important clinical utility in predicting individualized survival risks and treatment decision-making.
FRONTIERS IN MEDICINE
(2022)
Article
Surgery
Michael J. Cavnar, Kenneth Seier, Christina Curtin, Vinod P. Balachandran, Daniel G. Coit, Sam S. Yoon, Aimee M. Crago, Vivian E. Strong, William D. Tap, Mithat Gonen, Cristina R. Antonescu, Murray F. Brennan, Sam Singer, Ronald P. DeMatteo
Summary: Surgery for gastrointestinal stromal tumor (GIST) in the imatinib era has resulted in prolonged overall survival compared to the pre-imatinib era. Tumor site, size, and mitotic rate in pre-imatinib era primary tumor patients are associated with survival. Imatinib treatment may benefit patients with high-risk features, particularly tumor size.
Article
Genetics & Heredity
Lei Cao, Kunming Zheng, Yanhong Liu, Peng Song, Chuntao Wang, Hongzhi Wang, Nan Wang, Shiwu Zhang, Yongjie Zhao
Summary: This study identified 897 differentially expressed genes (DEGs) between imatinib-sensitive and imatinib-resistant cell lines of GIST using RNA sequencing. Among the DEGs, 10 top genes (NDN, FABP4, COL4A1, COLEC11, MEG3, EPHA3, EDN3, LMO3, RGS4, and CRISP2) were selected and their expression trends in different imatinib-resistant cell lines were confirmed using RT-PCR. These findings suggest that these genes may potentially play a role in the clinical diagnosis and treatment of imatinib resistance in GIST.
FRONTIERS IN GENETICS
(2022)