Results 71 to 80 of about 283,349 (208)

Pancreatic cancer cell lines deficient in argininosuccinate synthetase are sensitive to arginine deprivation by arginine deiminase [PDF]

International Journal of Cancer, 2008
Abstract Eukaryotic cells can synthesize the non‐essential amino acid arginine from aspartate and citrulline using the enzyme argininosuccinate synthetase (ASS). It has been observed that ASS is underexpressed in various types of cancers ASS, for which arginine become auxotrophic.
Tawnya L, Bowles, Randie, Kim, Joseph, Galante, Colin M, Parsons, Subbulakshmi, Virudachalam, Hsing-Jien, Kung, Richard J, Bold   +6 more
openaire   +2 more sources

Dissecting the Adaptive Response to Arginine Deprivation in Hodgkin Lymphoma

Blood, 2021
Abstract Background In Hodgkin Lymphoma (HL), neoplastic cells orchestrate an inflammatory microenvironment leading to sterile inflammation, T-cell anergy, and immune deficiency. Our group showed that in HL patients the aminoacid degrading enzyme Arginase-1 is increased, associated with poor outcome, and leads to arginine (Arg ...
Fabrizio Puglisi, Antonella Padella, Nunziatina Laura Parrinello, Grazia Scandura, Daniela Cambria, Enrico La Spina, Alessandro Barbato, Cesarina Giallongo, Daniele Tibullo, Giuseppe A. Palumbo, Claudio Cerchione, Giovanni Martinelli, Giorgia Simonetti, Francesco Di Raimondo, Alessandra Romano   +14 more
openaire   +1 more source

Amino acid deprivation induces AKT activation by inducing GCN2/ATF4/REDD1 axis

Cell Death and Disease, 2021
Amino acid availability is sensed by various signaling molecules, including general control nonderepressible 2 (GCN2) and mechanistic target of rapamycin complex 1 (mTORC1).
Hyeon-Ok Jin, Sung-Eun Hong, Ji-Young Kim, Se-Kyeong Jang, In-Chul Park   +4 more
doaj   +1 more source

VCP‐Regulated LMF2 Stabilizes the Cholesterol Biosynthesis Enzyme HMGCS1 to Drive Cancer Progression and Confer Capecitabine Resistance in Triple‐Negative Breast Cancer

Advanced Science, EarlyView.
LMF2 drives progression and capecitabine resistance in triple‐negative breast cancer (TNBC). Mechanistically, VCP prevents NBR1‐mediated autophagic degradation of LMF2, thereby stabilizing it. Stabilized LMF2 subsequently suppresses NDP52‐mediated autophagic degradation of HMGCS1, a rate‐limiting cholesterol biosynthesis enzyme.
Qian Zhao, Lisa Andriani, Yin‐Ling Zhang, Shao‐Ying Yang, Yun‐Xiao Ling, Min‐Ying Huang, Jia‐Yang Cai, Fang‐Lin Zhang, Xin Hu, A‐Yong Cao, Zhi‐Min Shao, Guang‐Yu Liu, Da‐Qiang Li   +12 more
wiley   +1 more source

Arginase treatment prevents the recovery of canine lymphoma and osteosarcoma cells resistant to the toxic effects of prolonged arginine deprivation.

PLoS ONE, 2013
Rapidly growing tumor cells require a nutrient-rich environment in order to thrive, therefore, restricting access to certain key amino acids, such as arginine, often results in the death of malignant cells, which frequently display defective cell cycle ...
James W Wells, Christopher H Evans, Milcah C Scott, Barbara C Rütgen, Timothy D O'Brien, Jaime F Modiano, Goran Cvetkovic, Slobodan Tepic   +7 more
doaj   +1 more source

The VCPIP1‐UBE3A Deubiquitination‐Ubiquitination Cascade Contributes to Castration‐Resistant Prostate Cancer Progression

Advanced Science, EarlyView.
VCIPIP1 emerges as a molecular link between protein stability and prostate cancer progression. By deubiquitinating and stabilizing UBE3A, VCIPIP1 promotes p53 degradation and progression to castration‐resistant prostate cancer. Elevated VCIPIP1 expression is associated with shorter castration‐resistant prostate cancer–free survival, highlighting the ...
Fei Lin, Wen‐Cai Zheng, Yi‐Qiu Wang, Bin Lin, Yun‐Zhi Lin, Dong‐Ning Chen, Xiao‐Dong Li, Xue‐Yi Xue, Yong Wei, Ning Xu   +9 more
wiley   +1 more source

PHGDH‐Mediated Serine Metabolism in Nucleus Pulposus Cells Is a Potential Therapeutic Target for Intervertebral Disc Degeneration

Advanced Science, EarlyView.
When nucleus pulposus cells senesce, PHGDH decreases, reducing serine synthesis and glutathione, impairing antioxidant capacity. The intermediate α‐KG also drops, lowering JMJD3 demethylase activity, increasing H3K27me3 at the Rap1b promoter, and reducing Rap1b expression, whose down‐regulation in turn activates mTORC1 and suppresses autophagy ...
Hao‐Wei Xu, Sheng‐Jie Chang, Xiao‐Wei Liu, Shu‐Bao Zhang, Ying‐Jie Wang, Shan‐Jin Wang   +5 more
wiley   +1 more source

CKMT1 Counteracts VDAC1 Oligomerization‐Induced Neuronal Pyroptosis Through Steric Hindrance in Ischemic Stroke

Advanced Science, EarlyView.
CKMT1 inhibits VDAC1 oligomerization via a dual‐region mechanism: its NTD interacts with the VDAC1 C‐terminal domain, while residues 1–39 sterically hinder dimerization, thereby reducing mtDNA leakage and AIM2 inflammasome activation, suppressing neuronal pyroptosis and protecting against cerebral ischemic injury. ABSTRACT Ischemic stroke is one of the
Xiaoyu Wang, Sai Shi, Jianghui Wu, Jingge Zhang, Shuqin Li, Yuyan Hu, Haifeng Yin, Chenguang Zhao, Dong Ma, Xiaohui Xian, Lizhe Liu, Ling Zhao, Xiyun Liu, Zhikai Yu, Lihua Dong, Wenbin Li, Lingyan Zhang, Min Zhang   +17 more
wiley   +1 more source

Autoantibodies to Joint‐Related Peptides Are Associated With Onset of Rheumatoid Arthritis in Presymptomatic Seronegative Individuals

Arthritis &Rheumatology, EarlyView.
Objective To identify autoantibodies in presymptomatic individuals that associate with the onset of rheumatoid arthritis (RA) and to distinguish early RA from osteoarthritis (OA), particularly in individuals lacking classic RA serologic markers. Methods We analyzed serum and plasma from three cohorts: presymptomatic individuals who later developed RA ...
Outi Sareila, Linda Johansson, Anders Lundquist, Monica Leu Agelii, Lei Cheng, Yibo He, Erik Lönnblom, Maria Andersson, Jan Kihlberg, Anders Esberg, Inger Gjertsson, Rikard Holmdahl, Solbritt Rantapää‐Dahlqvist   +12 more
wiley   +1 more source

A nanoplatform that induces dual‐amino acid deprivation to reverse tumor immunosuppression and enhance metabolic immunotherapy

BMEMat, EarlyView.
ZIF‐8‐based nanoparticles co‐delivering CB‐839 (glutaminase inhibitor) and 1‐MT (IDO1 inhibitor), dual‐targeting glutamine/tryptophan metabolism to induce immunogenic cell death, activate STING, block kynurenine production, reverse immunosuppression, and enhance cancer immunotherapy to suppress primary/distant tumors.
Wenli Ning, Yunhan Sun, Mingyang Li, Shilu Liu, Fangjie Yi, Hongfei Wang, Ruibing Bai, Dongdong Liu, Fen Zhao, Guiqiang Zhang, Xiao Fu   +10 more
wiley   +1 more source