Results 61 to 70 of about 208,181 (247)

Two Novel S‐methyltransferases Confer Dimethylsulfide Production in Actinomycetota

Advanced Science, EarlyView.
This study identifies two novel S‐adenosine‐methionine‐dependent methyltransferases, MddM1 and MddM2, in actinomycetes from the Mariana Trench. These enzymes can convert toxic hydrogen sulfide (H2S) and methanethiol (MeSH) into dimethylsulfide (DMS), serving as a cellular detoxification and oxidative stress response.
Ruihong Guo, Zihua Guo, Yi Zhou, Yunhui Zhang, Haojin Cheng, Rebecca Devine, Chuang Sun, Ronghua Liu, Yanfen Zheng, Andrew J. Gates, Jonathan D. Todd, Xiao‐Hua Zhang   +11 more
wiley   +1 more source

Balanced Expression of the Diiron Oxygenase BioE Is Essential for Biotin Homeostasis in Elizabethkingia meningoseptica

Advanced Science, EarlyView.
BioE is a new diiron oxygenase that catalyzes the conversion of long‐chain acyl groups into pimeloyl thioester, initiating biotin synthesis. The overexpression of EmBioE disrupts lipid metabolic homeostasis, requiring repressor BioL to maintain a balance between long‐chain fatty acids and biotin synthesis.
Meng Zhang, Ying‐ying Fu, Xiaoqiang Yang, Qiuying Qin, Xinyu Su, Jiaming Fang, Yanhua Kang, Qingwen He, Zhi Ruan, Yongchang Xu   +9 more
wiley   +1 more source

Mycobacterial Spindle Cell Pseudotumor Presenting as a Pancreatic Head Mass: A Case Report

Pathogens
Mycobacterial spindle cell pseudotumors (MSCPs) are rare lesions characterized by the proliferation of spindle-shaped histiocytes caused by mycobacterial infections.
Frank A Cusimano, Tara Herrera, Douglas Brust, Elizabeth Montgomery, Sunil Amin, Folusakin Ayoade   +5 more
doaj   +1 more source

Thalidomide and Phosphodiesterase 4 Inhibitors as Host Directed Therapeutics for Tuberculous Meningitis: Insights From the Rabbit Model

Frontiers in Cellular and Infection Microbiology, 2020
Tuberculous meningitis (TBM) is the most devastating form of extrapulmonary Mycobacterium tuberculosis infection in humans. Severe inflammation and extensive tissue damage drive the morbidity and mortality of this manifestation of tuberculosis (TB ...
Ranjeet Kumar, Afsal Kolloli, Pooja Singh, Christopher Vinnard, Gilla Kaplan, Selvakumar Subbian   +5 more
doaj   +1 more source

A Deep Representation Learning Method for Quantitative Immune Defense Function Evaluation and Its Clinical Applications

Advanced Science, EarlyView.
ImmuDef, a novel algorithm to quantitatively evaluate the anti‐infection immune defense function of an individual based on RNA‐seq data via a variational autoencoder (VAE) model. It is validated on 3200+ samples across four immune states with high accuracy. It can serve as a metric for disease severity and prognosis across pathogenic cohorts.
Zhen‐Lin Tan, Tao Luo, Yu Lin, Xiao‐Jun Wu, Wen‐Kang Shen, Jie Chen, Qian Lei, An‐Yuan Guo   +7 more
wiley   +1 more source

Immunological characteristics and functions of macrophages in Mycobacterium leprae infection

BMC Immunology
Objective Our research aimed to clarify the roles of M1 and M2 macrophages in leprosy, focusing on their polarization states, phagocytic capacities, and the survival of M. leprae within these macrophage subsets.
Xiaodong Zhang, Haiqin Jiang, Weijun Liu, Hongsheng Wang   +3 more
doaj   +1 more source

A single regulator NrtR controls bacterial NAD+ homeostasis via its acetylation

eLife, 2019
Nicotinamide adenine dinucleotide (NAD+) is an indispensable cofactor in all domains of life, and its homeostasis must be regulated tightly. Here we report that a Nudix-related transcriptional factor, designated MsNrtR (MSMEG_3198), controls the de novo ...
Rongsui Gao, Wenhui Wei, Bachar H Hassan, Jun Li, Jiaoyu Deng, Youjun Feng   +5 more
doaj   +1 more source

Oral Celastrol Nanomedicine Targeting Intestinal Antigen‐Presenting Cells to Effectively Mitigate Autoimmune Uveitis via Gut‐Retina Axis

Advanced Science, EarlyView.
Oral nanoCEL exhibits effective intestinal targeting of antigen‐presenting cells and restores the Th17/Treg balance in lymph nodes and spleen, ultimately protecting the blood‐retinal barrier by inhibiting peripheral immune cell infiltration and suppressing retinal glial cell activation.
Jinrun Chen, Yuqin Wu, Bofei Xu, Jiabei Hou, Yijing Li, Yuhan Hu, Yutuo Zhu, Wenqiao Zhang, Shuqi Feng, Huanting Jin, Yuchen Cheng, Yuanyuan Jin, Jianhong Zhou, Xingyi Li   +13 more
wiley   +1 more source

Identification of Mannose‐Capped‐Arabinomannan 101‐mer as a Potential Influenza Virus Vaccine Adjuvant

Advanced Science, EarlyView.
Well‐defined and synthetic mannose‐capped arabinomannan 101‐mer from Mycobacterium tuberculosis cell wall was identified as a potent influenza vaccine adjuvant, boosting the antibody response, realizing full protection and showing excellent safety. ABSTRACT Many natural bacterial components as adjuvants can activate the host immune system, but the ...
Yu‐Fang Zhang, Ruihong Xu, Jia Luo, Yuxin Ma, Guozhi Xiao, Ye Liu   +5 more
wiley   +1 more source

Modelling Bovine Granuloma Formation In Vitro upon Infection with Mycobacterium Avium Subspecies Paratuberculosis

Veterinary Sciences, 2019
Mycobacterium avium subspecies paratuberculosis (Map) causes chronic granulomatous disease in cattle and ruminant livestock, causing substantial economic losses.
J. Hunter Rice, Margaret M. McDaniel, Alyson Holland, Shigetoshi Eda   +3 more
doaj   +1 more source