Results 141 to 150 of about 1,270,348 (335)

Quantitative constraint-based computational model of tumor-to-stroma coupling via lactate shuttle

, 2015
Cancer cells utilize large amounts of ATP to sustain growth, relying primarily on non-oxidative, fermentative pathways for its production. In many types of cancers this leads, even in the presence of oxygen, to the secretion of carbon equivalents ...
Capuani, Fabrizio, De Martino, Andrea, De Martino, Daniele, Marinari, Enzo   +3 more
core   +1 more source

A BioLiving Periosteum Evokes Centripetal Regeneration in Challenging Bone Defects

Advanced Science, EarlyView.
Large bone defects often suffer from insufficient central healing. This study engineers a BioLiving periosteum that mimics the native structure. It sequentially delivers remote chemical cues and contact physical cues in a signaling‐relay manner, effectively recruiting and guiding endogenous cells toward the defect center.
Yang Shi, Nian Liu, Jingyi Gu, Yinling Wang, Weiye Wang, Zhiwei Ke, Mingjun Xie, Wenjing Jin, Weicheng Kong, Jue Shi, Hui Pan, Yong He, Zhijian Xie   +12 more
wiley   +1 more source

Gut Lactate Boosts Ruminococcus via Histone Lactylation to Mediate Time‐Restricted Feeding Protection in Crohn's Disease

Advanced Science, EarlyView.
TRF enriches Ruminococcus, a bacterial genus producing SCFAs, and activates the epithelial HIF‐1α signaling pathway. This mechanism protects the colonic mucosa from inflammatory insults in colitis models. Mechanistically, gut lactate production during starvation and refeeding mediates H4K12la, which increases SLC9A3 expression and creates an acidic gut
Linwen Huang, Huishi Tan, Senhui Weng, Yuntao Liu, Lingxu Song, Shaoyu Cheng, Zelong Lin, Jiawei Chen, Fei Tan, Jun Wang, Jinke Huang, Linkun Cai, Jiwei Chai, Cailing Zhong, Yanqiang Shi, Wendi Zhang, Haiyan Zhang, Chongyang Huang   +17 more
wiley   +1 more source

DADA Enhances CD8+ T Cell Stemness to Improve Anti‐Tumor Immunity and Immunotherapy Efficacy

Advanced Science, EarlyView.
Diisopropylamine dichloroacetate (DADA) enhances CD8+ T cell stemness by improving OXPHOS and mitochondrial fitness in a PDK1‐depenpendent manner. This metabolic shift strengthens CD8+ T cell anti‐tumor immunity, improves responses to PD‐1 blockade, and endows CAR‐T cells with prolonged persistence and resistance to terminal exhaustion, highlighting a ...
Mingyue Bi, Fei Li, Heng Jiang, Lingling Gu, Mengjie Sun, Kunyu Lu, Pianpian Liu, Ruyue Xie, Wenqiang Ma, Meijuan Zheng, Xianwei Wang, Xuefu Wang, Jingjing Cong   +12 more
wiley   +1 more source

New insights on the mechanism of the K(+-) independent activity of crenarchaeota pyruvate kinases.

PLoS ONE, 2015
Eukarya pyruvate kinases have glutamate at position 117 (numbered according to the rabbit muscle enzyme), whereas in Bacteria have either glutamate or lysine and in Archaea have other residues.
Gustavo De la Vega-Ruíz, Lenin Domínguez-Ramírez, Héctor Riveros-Rosas, Carlos Guerrero-Mendiola, Alfredo Torres-Larios, Gloria Hernández-Alcántara, José J García-Trejo, Leticia Ramírez-Silva   +7 more
doaj   +1 more source

Metabolic responses to pyruvate kinase deletion in lysine producing Corynebacterium glutamicum

Microbial Cell Factories, 2008
Background Pyruvate kinase is an important element in flux control of the intermediate metabolism. It catalyzes the irreversible conversion of phosphoenolpyruvate into pyruvate and is under allosteric control.
Wittmann Christoph, Klopprogge Corinna, Becker Judith   +2 more
doaj   +1 more source

NIPAL1 Drives a Metabolic‐Epigenetic Feedback Loop to Promote Lactate‐Mediated Immune Evasion in Esophageal Cancer

Advanced Science, EarlyView.
The study identifies a NIPAL1‐driven metabolic‐epigenetic circuit in esophageal squamous cell carcinoma that promotes glycolysis, lactate accumulation, and H3K18 histone lactylation, forming a self‐sustaining loop that suppresses CD8+ T cell immunity.
Ri‐Xin Chen, Xiao‐Dan Ma, Shui‐Dan Xu, Ao‐Tian Mo, Min‐Hua Deng, Jun‐Han Wu, Wei‐Tao Zhuang, Jin‐Ling Duan, Shu‐Huan Xie, Jin‐Long Lin, Peng Lin, Ji‐Ming Tang, Hai‐Yu Zhou, Xiao‐Song Ben, Gui‐Bin Qiao, Dan Xie   +15 more
wiley   +1 more source

Identifying Cytokine Motif‐Containing, Immunomodulatory Bacterial Proteins in Human Gut Microbiome

Advanced Science, EarlyView.
By building and constructing HMM (Upper left, blue), the authors identify CMCPs in bacteria genomes and CRC related metagenomes and enriched CRC‐related CMCPs (Upper right, blue). They analyze sequence and structural similarity of hits (Lower left, green), test function with engineered EcN delivered to tumors in a mouse tumor model (Lower right, pink ...
Ziyu Wang, Siqi Guo, Jing Li, Qianqian Huang, Jing Ning, Binbin Xia, Xun Lv, Xiang Liu, Zeyu Gao, Jine Li, Longchao Liu, Moshi Song, Jun Wang   +12 more
wiley   +1 more source

Desuccinylation of pyruvate kinase M2 by SIRT5 contributes to antioxidant response and tumor growth

OncoTarget, 2016
Tumor cells trends to express high level of pyruvate kinase M2 (PKM2). The inhibition of PKM2 activity is needed for antioxidant response by diverting glucose flux into the pentose phosphate pathway and thus generating sufficient reducing potential. Here
X. Ye, X. Niu, L. Gu, Yunhua Xu, Ziming Li, Yongfeng Yu, Zhiwei Chen, L. Shun   +7 more
semanticscholar   +1 more source

PVNCRF Neurons Regulate Migraine‐Like Allodynia by Activating CRFR2 on Spinal Trigeminal Caudalis Glutamatergic Neurons

Advanced Science, EarlyView.
Paraventricular CRF neurons in the hypothalamus project to glutamatergic neurons of the spinal trigeminal caudal nucleus, enhancing neuronal activation and CRFR2 signaling. This pathway increases CRF release and excitatory drive, promoting central sensitization and migraine‐related behaviors. Targeting the PVN–SP5C circuit provides a potential strategy
Jiang Bian, Xiao‐Long Wang, Li Yin, Wei Wei, Xue Li, Yao Ge, Zhao‐Xia Xiang, Na Tian, Li‐Juan Chen, Ming‐Wei Ma, Xia Zhang, Xu Jing, Mei‐Yun Wang, Xu‐Feng Xu   +13 more
wiley   +1 more source