Results 61 to 70 of about 62,250 (302)

Colorectal cancer with high-frequency microsatellite instability expresses high-level thymidine phosphorylase but not dihydropyrimidine dehydrogenase [PDF]

, 2013
Recent clinical studies have reported that microsatellite instability (MSI) colorectal cancers show a high sensitivity to 5-FU, but these reports are contradictory to findings from in vitro analyses.
Sawai, Terumitsu, Nagayasu, Takeshi, Hisano, Hiroshi, Jibiki, Masaaki, Tsuji, Takashi, Nakagoe, Tohru, Nogawa, Tatsuhiko   +6 more
core  

Microsatellite instability in colon cancer

, 2012
Microsatellite instability helps predict the treatment response in patients with colorectal carcinoma.1-3 In our studies of microsatellite instability, we found that intratumor heterogeneity for a given marker may bias the stratification of patients.
Alfredo Blanes (100215), Juan J. Jimenez (100241), Salvador J. Diaz-Cano (100072)   +2 more
core   +1 more source

DNA Replication Errors Drive Genome‐Wide Small Inverted Triplication Dynamics

Advanced Science, EarlyView.
This study provides insight into the dynamic equilibrium mechanism of a novel structural variant, small inverted triplication (SIT), which is generated by misalignment of the 3’ flap generated under DNA replication stress with palindromic sequence. Alternatively, the end sequence may fold back on itself to form an inverted fragment.
Yi Lei, Yu Zhou, Haitao Sun, Hang Yuan, Xinyu Pei, Jessica D. Hess, Yao Yan, Zunsong Hu, Mian Zhou, Zhaohui Gu, Li Zheng, Xiwei Wu, Binghui Shen   +12 more
wiley   +1 more source

CD44‐Targeting Hydroxyapatite Nanoparticles (HAP) Induce Mitochondrial Dysfunction‐Driven PANoptosis and Immunogenic Cell Death (ICD) via Ca Overload in Colorectal Cancer

Advanced Science, EarlyView.
ABSTRACT Colorectal cancer (CRC) remains therapeutically challenging due to high metastasis, recurrence, and immunotherapy resistance driven by tumor microenvironment‐mediated immune evasion. Immunogenic cell death (ICD) offers a promising strategy to reshape the immune microenvironment, yet existing ICD inducers suffer from poor targeting efficiency ...
Yao Xiao, Yuxuan Yang, Haosen Qiu, Jia Yang, Hao Liang, Zhaojun Jiang, Xiao Tong, Yongying Li, Qunfeng Huang, Jiaming Wu, Tian Lin, Jiang Yu, Min Liang   +12 more
wiley   +1 more source

Systemic Therapy for Microsatellite Instability Small Bowel Adenocarcinoma With Mesenteric Vascular Embolism as Initial Symptom: A Case Report

Frontiers in Medicine, 2021
Background: Small bowel adenocarcinoma are relatively rare tumors of the digestive system. Due to the lack of specific screening methods, patients are often diagnosed at an advanced stage.
Zhongyi Dong, Xiang Xia, Zizhen Zhang
doaj   +1 more source

Targeting PLD3 Reverses the Immunosuppressive Niche by Reprogramming Tumor‐Associated Macrophages and Potentiates Antitumor Immunity

Advanced Science, EarlyView.
PLD3 activates the lysosomal‐AKT‐NF‐κB axis to drive cellular senescence in macrophages, establishing an immunosuppressive TME by limiting the infiltration of cytotoxic T, NK, and NKT cells, which confers resistance to anti‐PD‐1 therapy. Abrine inhibits PLD3 expression, restoring antitumor immunity and synergizing with anti‐PD‐1 treatment.
Xingtu Qin, Qiong Li, Xuemei Xu, Yuhan Wu, Yin Zhu, Jieqiong Wu, Yuan Fang, Qiubei Chen, Shuyang Wang, Jiang Yu, Yaping Ye, Hongli Jiao   +11 more
wiley   +1 more source

Intrinsic structural variation of the complex microsatellite marker MYCL1 in Finnish and Somali populations and its relevance to gastrointestinal tumors

Genetics and Molecular Biology, 2006
The structurally complex MYCL1 microsatellite marker is often used to determine microsatellite instability in colorectal cancers but the allelic variation of this marker has remained largely uncharacterized in both populations and in cancers.
Hanna Vauhkonen, Antti Sajantila
doaj   +1 more source

Placental Site Trophoblastic Tumor Acquires Immune Functions by Incorporating Host Maternal Genes

Advanced Science, EarlyView.
PSTT cells, through cell fusion with B cells, incorporate abundant non‐inherited maternal genes that are detectable by DNIMA. These hybrid cells acquire immunotherapy‐resistant genetic changes and increase the expression of B cell‐derived immune‐related molecules such as Ig, HLA, LILRB, SIGLEC10, and so on, creating an immunotolerant environment around
Kyosuke Kagami, Masanori Ono, Yasunari Mizumoto, Tatsuhito Kanda, Takashi Iizuka, Takiko Daikoku, Shin‐ichi Horike, Akira Hattori, Akihito Horie, Sachiko Minamiguchi, Tomoko Fujiwara, Kazuyoshi Hosomichi, Atsushi Tajima, Hirokazu Usui, Kaoru Abiko, Hiroshi Fujiwara   +15 more
wiley   +1 more source

Single‐Cell RNA Editing Identifies T Cell ADAR1 as a Key Regulator of Immune Exhaustion and Anti‐PD‐1 Resistance in Colorectal Cancer

Advanced Science, EarlyView.
Single‐cell RNA editing analysis identifies ADAR1 as a regulator of dysfunctional T cell states in colorectal cancer. Elevated ADAR1 activity promotes T cell exhaustion and impairs antitumor immunity partly through TGF‐β‐SMAD signaling, contributing to anti‐PD‐1 resistance and highlighting T cell ADAR1 as a potential therapeutic target and biomarker ...
Da Kang, Song‐Zuo Xie, Yong‐Zhou Luo, Xin‐Pei Deng, Xi‐Rong Tan, Ze‐Geng Chen, Ling‐Xing Zeng, Gong Chen, Pei‐Rong Ding, Zhi‐Zhong Pan, Rong‐Xin Zhang   +10 more
wiley   +1 more source

Microsatellite instability in ICR mouse strain, predisposed malignant swellings

Фактори експериментальної еволюції організмів, 2013
Aims. Microsatellite instability (MSI) is a form of genomic instability frequently detected in many types of tumors. However, the involvement of MSI in cancer development in the population ICR mouse strain has not been investigated. The aim of this work
M. V. Kovalchuk, T. P. Gulko
doaj