Results 31 to 40 of about 15,251 (244)

Actin comet tails, endosomes and endosymbionts [PDF]

Journal of Experimental Biology, 2003
SUMMARYThe Arp2/3 complex consists of seven highly conserved and tightly associated subunits, two of which are the actin-related proteins Arp2 and Arp3. One of the best-studied functions of the Arp2/3 complex is to stimulate actin nucleation and force production at the leading edge of motile cells.
Kammy, Fehrenbacher, Thomas, Huckaba, Hyeong-Cheol, Yang, Istvan, Boldogh, Liza, Pon   +4 more
openaire   +2 more sources

EIF1AX Nucleolar Condensates Enhance Susceptibilities for the Management of Endometrial Cancer

Advanced Science, EarlyView.
This schematic illustrates the mechanism of a senolytic strategy in endometrial cancer. EIF1AX facilitates the incorporation of DDX21 into nucleolar condensates, an event that suppresses rDNA transcription and induces cellular senescence. The compound 2,5‐MeC exploits this pathway by promoting EIF1AX nucleolar translocation and condensate formation ...
Chengyu Lv, Zihang Lin, Jiandong Sun, Yuhong Ye, Qibin Wu, Liangzhi Cai, Dabin Liu, Pengming Sun, Shie Wang   +8 more
wiley   +1 more source

ACSL5 Regulates Glucose Metabolism and Chemotherapy Sensitivity in Colorectal Cancer Cells under Glutamine Deficiency

Advanced Science, EarlyView.
Glutamine deprivation triggers ACSL5 upregulation in tumor cells, sustaining their viability via dual metabolic rewiring programs. ACSL5 enhances glycolysis by relieving p53's inhibition of PGAM1 while also sustaining mitochondrial respiration and TCA cycle flux through promoting IDH2 dimerization.
Shuai Tian, Qiaoxia Zhang, Xuedan Sun, Rick Francis Thorne, Zeyuan Shi, Qiang Ji, Zhangran Sun, Yuanxiang Lu, Qun Zhao, Xianjun Yu, Wanglai Hu, Mian Wu   +11 more
wiley   +1 more source

Standardizing electrophoresis conditions: how to eliminate a major source of error in the comet assay.

Frontiers in Genetics, 2015
In the alkaline comet assay, cells are embedded in agarose, lysed, and then subjected to further processing including electrophoresis at high pH (>13). We observed very large variations of mean comet tail lengths of cell samples from the same population ...
Gunnar Brunborg
doaj   +1 more source

Dendritic organization of actin comet tails [PDF]

Current Biology, 2001
Polymerization of actin filaments is necessary for both protrusion of the leading edge of crawling cells and propulsion of certain intracellular pathogens, and it is sufficient for generating force for bacterial motility in vitro. Motile intracellular pathogens are associated with actin-rich comet tails containing many of the same molecular components ...
Cameron, Lisa A., Svitkina, Tatyana M., Vignjevic, Danijela, Theriot, Julie A., Borisy, Gary G.   +4 more
openaire   +2 more sources

Targeting WEE1 in ARID1A/TP53 Concurrent Mutant Colorectal Cancer by Exploiting R‐Loop Accumulation and DNA Repair Deficiencies

Advanced Science, EarlyView.
ARID1A, a SWI/SNF complex component, is frequently mutated in colorectal cancer (CRC). CRC with ARID1A/TP53 concurrent mutations shows marked sensitivity to WEE1 inhibition. ARID1A loss induces R‐loop‐mediated replication stress, impairs ATF3 transcription, and amplifies WEE1i‐induced DNA damage, suggesting a promising therapeutic vulnerability ...
Chi Zhang, Yanjing Zhu, Luoyan Ai, Jingyuan Wang, Shan Yu, Yichen Wang, Xiaojing Xu, Mengling Liu, Yiyi Yu, Mengxuan Zhu, Yutong Liu, Zhenghang Xu, Haojie Zhou, Huishan Li, Qihong Huang, Qing Liu, Ke Peng, Tianshu Liu   +17 more
wiley   +1 more source

Low YTHDC1 Expression Upregulates FSCN1 to Promote Nuclear F‐Actin Formation and Facilitate Double‐strand DNA Breaks Repair in TMZ‐Resistant Glioblastoma

Advanced Science, EarlyView.
This study revealed that low expression of YTHDC1 in TMZ‐resistant GBM cells leads to increased FSCN1 expression, which is suppressed by m6A modification. FSCN1 activates the CDC42/N‐WASP/Arp2/3 axis in the cell nucleus by recruiting the guanine nucleotide exchange factor (GEF) family member FGD1, thereby promoting F‐actin polymerization in the nucleus.
Minglong Yang, Wanxiang Niu, Yuanfei Wang, Peng Chen, Maolin Mu, Xiaoming Zhang, Ben Xu, Shanshan Hu, Chaoshi Niu, Pengfei Wu   +9 more
wiley   +1 more source

Pro‐ATO/Allicin Liposomes for Dual‐Pathway Targeting of p53‐Mutant Tumors

Advanced Science, EarlyView.
Schematic illustration of the “pro‐ATO”/allicin liposomal strategy. Liposomal encapsulation improves the stability and bioavailability of both agents while masking allicin's odor. Upon release in the tumor microenvironment, ATO reactivates structural p53 mutants, and allicin inhibits ATR signaling while releasing H2S, collectively inducing synthetic ...
Xiaoling Xu, WeiYi Cheng, Menghang Yang, Li He, WeiYe Ren, JingQuan Chen, LiTing He, Dandan Bao, Zhihong Zhu, Lixin Wang, Qinghua Yao, Ji‐Gang Piao   +11 more
wiley   +1 more source

Engineered Bacteria‐Vesicle Delivered Lactate Reprogramming Boosts Tumor Radiosensitivity

Advanced Science, EarlyView.
We engineered a bacterial‐vesicular dual‐delivery platform that targets LOx to colorectal tumors, enabling lactate clearance, immune microenvironment remodeling, and microbiota modulation. This microbe–metabolism synergistic strategy effectively sensitizes colorectal cancer to radiotherapy, offering a promising approach to overcome radioresistance ...
Fei Peng, Zhe Lei, Zhehao Zhang, Zhiyue Su, Chonghai Zhang, Huan Yang, Shu Liu, Mengyuan Hu, Yuhong Wang, Lingchuan Guo, Lin Hu, Kai Yang   +11 more
wiley   +1 more source

Comparison Between Different DNA and Conventional

مجله كليه طب الكندي, 2012
Background: The discriminative power of the classical WHO parameters in relation to male fertility is quite low, because they only address few aspects of sperm quality and function.
Estabraq . , A Rasool1, Omar . , F Abdul-Rasheed1, Ali F. AL-Hashimi   +2 more
doaj