نتایج جستجو برای: gist

تعداد نتایج: 3929  

2010
Krishnendu Chatterjee Thomas A. Henzinger Barbara Jobstmann Arjun Radhakrishna

Gist is a tool that (a) solves the qualitative analysis problem of turn-based probabilistic games with ω-regular objectives; and (b) synthesizes reasonable environment assumptions for synthesis of unrealizable specifications. Our tool provides the first and efficient implementations of several reduction-based techniques to solve turn-based probabilistic games, and uses the analysis of turn-base...

Journal: :Revista do Colegio Brasileiro de Cirurgioes 2015
Fernando de Barros Guilherme Pinheiro Nahoum Bruno Jorge de Almeida

The gastrointestinal stromal tumor (GIST) is a rare mesenchymal tumor. One should pay special attention when the GIST comes in obese patients during surgery. The laparoscopic resections with standard techniques, such as gastric bypass, have been described with good results. However, GIST resection associated sleeve gastrectomy for the treatment of obesity is rare, but can be done safely, depend...

2014
Nobuhiro Takeuchi Yusuke Nomura Yu Nishida Tetsuo Maeda Kazuyoshi Naba

Gastrointestinal stromal tumor (GIST) is a rare form of mesenchymal tumor of the gastrointestinal tract, accounting for 1% of malignant neoplasms [1]. Most gastrointestinal mesenchymal tumors are GISTs, originating from interstitial cells of Cajal or precursors of these cells. Although several reports regarding GIST have incrementally advanced our understanding of this condition in recent years...

2014
Amin Shafizad Mohammad Mohammadianpanah Hamid Nasrolahi Maral Mokhtari Seyed Abdolah Mousavi

The Gastrointestinal Stromal Tumor (GIST) is a rare mesenchymal tumor of gastrointestinal (GI) tract. This tumor has tendency to liver metastasis and peritoneal recurrence, however; the primarily lymph node involvement or metastasis is rare. Here we reported a 17-years-old girl with multifocal gastric GIST and multiple lymph node involvement at presentation and recurrence in celiac lymph nodes....

Journal: :Annals of hepatology 2012
Chun-yi Hao Hong-gang Qian

Liver is the most common metastatic site of gastrointestinal stromal tumor(GIST). The recurrence rate is high even after hepatectomy. Although tyrosine kinase inhibitors (TKI) makes the resection feasible for some of the liver metastasis of GIST and significantly increase the overall survival, surgery still can not be substituted. Therefore, it is worth investigating and exploring the most appr...

Journal: :Cancer Discovery 2021

Abstract Gastrointestinal stromal tumors (GIST) harboring activating mutations of PDGFRA respond to imatinib, with the notable exception most common mutation, D842V. Avapritinib is a novel, potent KIT/PDGFRA inhibitor substantial clinical activity in patients D842V genotype. To date, only minority PDGFRA-mutant treated avapritinib have developed secondary resistance. Tumor and plasma biopsies 6...

Journal: :Proceedings of the National Academy of Sciences of the United States of America 2006
Ferdinand Rossi Imke Ehlers Valter Agosti Nicholas D Socci Agnes Viale Gunhild Sommer Yasemin Yozgat Katia Manova Cristina R Antonescu Peter Besmer

Kit receptor-activating mutations are critical in the pathogenesis of gastrointestinal stromal tumors (GIST). We investigated mechanisms of oncogenic Kit signaling and the consequences of therapeutic intervention in a mouse model of human GIST. Treatment of GIST mice with imatinib decreased cell proliferation and increased apoptosis in the tumor. Analysis of tumor tissue from imatinib-treated m...

Journal: :Molecular cancer therapeutics 2011
Giuseppe Floris Maria Debiec-Rychter Agnieszka Wozniak Cristiana Stefan Emmanuel Normant Gavino Faa Kathleen Machiels Ulla Vanleeuw Raf Sciot Patrick Schöffski

The activity of the receptor tyrosine kinase KIT is crucial for gastrointestinal stromal tumor (GIST) growth and survival. Imatinib and sunitinib are very effective in advanced GIST, but have no curative potential. The observation that heat shock protein 90 (HSP90) inhibition results in KIT degradation prompted us to assess the efficacy of the HSP90 inhibitor retaspimycin hydrochloride (IPI-504...

Journal: :International journal of clinical and experimental pathology 2014
Hua Huang Xiaolu Zhai Huijun Zhu Wei Wang Shu Zhang Lihua Wu Jianguo Zhang

Atonal homolog 1 (Atoh1) is crucial to the differentiation of many cell types and participates in tumorigenesis and progression. However, the expression of Atoh1 in gastrointestinal stromal tumors (GIST) and its relationship to clinical characteristics of this disease remain poorly understood. In this study, immunohistochemical analysis using tissue microarray (TMA) was employed to evaluate the...

Journal: :Proceedings of the National Academy of Sciences of the United States of America 2012
Benedikt Bosbach Shayu Deshpande Ferdinand Rossi Jae-Hung Shieh Gunhild Sommer Elisa de Stanchina Darren R Veach Joseph M Scandura Katia Manova-Todorova Malcolm A S Moore Cristina R Antonescu Peter Besmer

Most gastrointestinal stromal tumors (GISTs) harbor a gain-of-function mutation in the Kit receptor. GIST patients treated with the tyrosine kinase inhibitor imatinib frequently develop imatinib resistance as a result of second-site Kit mutations. To investigate the consequences of second-site Kit mutations on GIST development and imatinib sensitivity, we engineered a mouse model carrying in th...

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