Results 91 to 100 of about 110,293 (352)

Caspase‐3/GSDME‐Mediated Trophoblast Pyroptosis and Reciprocal Macrophage Polarization Contribute to Inflammation in Early‐Onset Preeclampsia

Advanced Science, EarlyView.
In trophoblast cells, T/S (TNFα + SM164) activated caspase‐3, which cleaved GSDME to switch apoptosis to pyroptosis, causing cell swelling, membrane rupture, and release of LDH, HMGB1, IL‐1β and IL‐18. These cytokines induced pro‐inflammatory macrophage polarization, which in turn reinforced pyroptotic signaling in trophoblasts, amplifying systemic ...
Baoying Huang, Weinan Deng, Shilei Bi, Yifan Wang, Zhaowei Tu, Lijun Huang, Lili Du, Lizi Zhang, Zhoushan Feng, Wei Sun, Tengfei Liu, Julia Kzhyshkowska, Haibin Wang, Jingsi Chen, Dunjin Chen, Shuang Zhang   +15 more
wiley   +1 more source

Ceramide activation of RhoA/Rho kinase impairs actin polymerization during aggregated LDL catabolism[S]

Journal of Lipid Research, 2017
Macrophages use an extracellular, hydrolytic compartment formed by local actin polymerization to digest aggregated LDL (agLDL). Catabolism of agLDL promotes foam cell formation and creates an environment rich in LDL catabolites, including cholesterol and
Rajesh K. Singh, Abigail S. Haka, Alexandria Brumfield, Inna Grosheva, Priya Bhardwaj, Harvey F. Chin, Yuquan Xiong, Timothy Hla, Frederick R. Maxfield   +8 more
doaj   +1 more source

AXL Promotes Ischemic Myelin Repair Through Alleviating Myelin Debris Deposition and Lipid Droplets Accumulation

Advanced Science, EarlyView.
Microglial AXL drives white matter repair after stroke by orchestrating the cleanup of myelin debris. Mechanistically, AXL signals through EGR1 to boost Smpd1 transcription, regulating sphingolipid metabolism and preventing lipid droplet toxicity. Restoring the pathway with ASM therapy mitigates damage, positioning AXL as a key node for therapeutic ...
Junqiu Jia, Yonghui Gan, Jia Li, Lilin Li, Hailan Meng, Min Sun, Lei Ye, Rui Mao, Xiang Cao, Shengnan Xia, Xinyu Bao, Renyuan Liu, Meijuan Zhang, Yun Xu   +13 more
wiley   +1 more source

Role of ceramide-to-dihydroceramide ratios for insulin resistance and non-alcoholic fatty liver disease in humans

BMJ Open Diabetes Research & Care, 2020
Introduction Sphingolipid accumulation has been linked to obesity, type 2 diabetes and non-alcoholic fatty liver disease (NAFLD). A recent study showed that depletion of dihydroceramide desaturase-1 (DES-1) in adipose and/or liver tissue decreases ...
Irene Esposito, Michael Roden, Christian Herder, Maria Apostolopoulou, Ruth Gordillo, Sofiya Gancheva, Klaus Strassburger, Matthias Schlensak, Philipp E Scherer   +8 more
doaj   +1 more source

F13A1‐Mediated Macrophage Activation Promotes MASH Progression via the PKM2/HIF1A Pathway

Advanced Science, EarlyView.
In fatty liver disease, hepatocytes exposed to palmitate release S1P, which activates calcium signaling in macrophages. Elevated calcium enhances the activity of F13A1, driving PKM2 dimerization. The PKM2 dimers cause Warburg effect, translocate to the nucleus, cooperate with HIF1A, and upregulate IL1B expression, ultimately promoting classical ...
Qianrang Lu, Meiching Ong, Xuewen Yi, Muqiong Xing, Xinyao Tian, Ke Zhang, Ling Lu, Hao Wang, Xiaohan Lin, Jun Fang, Aibo Mu, Jiaying Cao, Jingyu Jiang, Feng Gao, Hongjun Li, Baohong Wang, Qi Ling   +16 more
wiley   +1 more source

Ceramide structural features required to stimulate ABCA1-mediated cholesterol efflux to apolipoprotein A-I

Journal of Lipid Research, 2006
Ceramide is a component of the sphingomyelin cycle and a well-established lipid signaling molecule. We recently reported that ceramide specifically increased ABCA1-mediated cholesterol efflux to apolipoprotein A-I (apoA-I), a critical process that leads ...
Amy B. Ghering, W. Sean Davidson
doaj   +1 more source

Tricalbins Are Required for Non-vesicular Ceramide Transport at ER-Golgi Contacts and Modulate Lipid Droplet Biogenesis [PDF]

, 2020
Atsuko Ikeda, Philipp Schlarmann, Kazuo Kurokawa, Akihiko Nakano, Howard Riezman, Kouichi Funato   +5 more
openalex   +1 more source

Using Molecular Dynamics Simulations to Elucidate a Role for Bacterial Ceramides [PDF]

, 2021
Anushriya Subedy, Liam Sharp, Eric A. Klein, Grace Brannigan   +3 more
openalex   +1 more source

Disrupting Lipid Raft Microdomains to Block Polyploid Giant Cancer Cell Budding and Enhance Radiotherapy Response

Advanced Science, EarlyView.
Radiation induces polyploid giant cancer cells (PGCCs) that regenerate tumors through virus‐like budding. This process depends on a SNCG–FLOT2–CHMP4B signaling axis functioning in lipid raft microdomains. Disrupting these domains using statins or anti‐PCSK9 antibodies blocks PGCC budding, suppresses tumor repopulation, and enhances radiotherapy ...
Zheng Deng, Haoran Sun, Jin Cheng, Ruyi Zhao, Jianzhu Xie, Yanwei Song, Yucui Zhao, Chenwei Lin, Binjie Hu, Yanping Gong, Jun Lin, Sijia He, Yuntao Luo, Minghui Zhao, Yiwei Wang, Ming Jiao, Yuqin Yang, Jikun Li, Shujie Xia, Chuanyuan Li, Qian Huang   +20 more
wiley   +1 more source

The role of de novo ceramide synthesis in the mechanism of action of the tricyclic xanthate D609

Journal of Lipid Research, 2004
The cytotoxic effects of several chemotherapeutic drugs have been linked to elevated de novo ceramide biosynthesis. However, the relationship between the intracellular site(s) of ceramide accumulation and cytotoxicity is poorly understood.
Ryan J. Perry, Neale D. Ridgway
doaj   +1 more source