Results 11 to 20 of about 44,257 (116)

The Natural Product Corramycin Acts as a DNA Gyrase Poison and Overcomes Fluoroquinolone Resistance in Mycobacterium tuberculosis

Advanced Science, EarlyView.
Corramycin, a myxobacterial natural product antibiotic, exhibits potent bactericidal activity against multidrug‐resistant Mycobacterium tuberculosis. The compound hijacks bacterial transporters such as BacA and OppABCD to enter the cell and inhibits DNA synthesis through a previously unrecognized mode of DNA gyrase poisoning, locking the enzyme in an ...
Franziska Fries, Jennifer Herrmann, Michael Dal Molin, Yaëlle Wormser, Timo Risch, Yunsheng Gao, Gareth Prosser, Francesca Gubellini, Ariel Mechaly, Joshua B. Wallach, Anthony Castro, Arka Banerjee, Sari Rasheed, Alexander Horn, Mathias Müsken, Michael Kurz, Lindsay Sonnenkalb, Viola Dreyer, Stefan Niemann, Sönke Andres, Dirk Schnappinger, Uli Kazmaier, Norbert Reiling, Rolf Müller, Jan Rybniker, Stéphanie Petrella   +25 more
wiley   +1 more source

Hearing modulation affects Alzheimer’s disease progression linked to brain inflammation: a study in mouse models

Molecular Medicine
Background Recent studies have identified hearing loss (HL) as a primary risk factor for Alzheimer’s disease (AD) onset. However, the mechanisms linking HL to AD are not fully understood. This study explored the effects of drug-induced hearing loss (DIHL)
Yoo-Seung Ko, Young-Kyoung Ryu, Sujin Han, Hyung Joon Park, Munyoung Choi, Byeong C. Kim, Han-Seong Jeong, Sujeong Jang, Jihoon Jo, Sungsu Lee, Won-Seok Choi, Hyong-Ho Cho   +11 more
doaj   +1 more source

The sRNA vvrr1 Modulates the VarS/VarA‐Csr System via LeuO to Regulate Biofilm Formation and Virulence in Vibrio alginolyticus

Animal Research and One Health, EarlyView.
vvrr1, a small RNA, post‐transcriptionally represses the transcriptional regulator LeuO, which directly inhibits the VarS/VarA two‐component system. This triggers a Csr cascade that relieves LuxO repression, ultimately modulating exopolysaccharide production to control biofilm formation and virulence in Vibrio alginolyticus.
Theerakamol Pengsakul, Lei Wen, Lingmin Zhao, Bei Huang, Jiang Zheng, Binfu Xu, Lixing Huang   +6 more
wiley   +1 more source

Afatinib Overcomes Osimertinib Resistance via Egfr V804F Mutation in a Syngeneic Egfr‐Mutant Lung Cancer Mouse Model

Cancer Science, EarlyView.
Using an immunocompetent mouse model of Egfr Ex19del‐driven lung cancer, we found that osimertinib‐resistant tumors acquired Egfr V804F, the murine counterpart of human EGFR V802F. Afatinib, but not osimertinib, suppressed phosphorylation of EGFR and overcame V804F‐mediated resistance, providing a preclinical rationale for biomarker‐guided therapy ...
Takaaki Tanaka, Masato Fujitani, Masataka Taoka, Iwao Shimomura, Sachi Okawa, Shunta Mori, Tadahiro Kuribayashi, Jun Nishimura, Tomoka Nishimura, Ayako Morita, Naofumi Hara, Kiichiro Ninomiya, Go Makimoto, Hisao Higo, Kammei Rai, Eiki Ichihara, Shuta Tomida, Katsuyuki Hotta, Yosuke Togashi, Yoshinobu Maeda, Katsuyuki Kiura, Ryohei Katayama, Kadoaki Ohashi   +22 more
wiley   +1 more source

A new branch of mammalian vitamin B6 metabolism: AKR1C‐mediated conversion of pyridoxal to pyridoxine and 4‐pyridoxolactone

The FEBS Journal, EarlyView.
Pyridoxal 5′‐phosphate (PLP) homeostasis relies on salvage enzymes, yet key metabolic branches remain undefined. We identify AKR1C isozymes as previously undescribed contributors that convert pyridoxal into pyridoxine or 4‐pyridoxolactone through reductase and dehydrogenase activities.
Nayu Kito, Yasuyuki Kitaura, Kyoka Iino, Kazuya Toriumi, Hyunah Noh, Naoya Ogawa, Makoto Arai, Hisashi Hemmi, Tomokazu Ito   +8 more
wiley   +1 more source

A chemo‐enzymatic colorimetric cascade for detecting ethylene glycol contamination

The FEBS Journal, EarlyView.
A chemo‐enzymatic cascade is developed for ethylene glycol (EG) detection. EG is oxidized by GoADH with C1‐mediated cofactor recycling to produce glycolaldehyde (GAL). GAL subsequently reacts with purpald to generate a detectable purple chromophore.
Tawatchai Singphongam, Tadtarit Anujareewat, Wachirawit Chinantuya, Pratchaya Watthaisong, Chayasith Uttamapinant, Somchart Maenpuen, Ruchanok Tinikul   +6 more
wiley   +1 more source

GSK3α‐mediated regulation of the RNA demethylase fat mass and obesity‐associated protein (FTO) during murine spermatogenesis

The FEBS Journal, EarlyView.
FTO regulates mRNA stability and translational efficiency through its m6A‐demethylation activity. GSK3 functions as an upstream regulator of FTO, leading to its inhibition via phosphorylation. In male germ cells, FTO activity is kept in check by GSK3α.
Neha Choudhari, Budheswar Dehury, Rounak Roy, Radhakrishnan Periyasamy, Indrashis Bhattacharya, Mahesh Sahare, Srinivasan Vijayraghavan, Souvik Dey   +7 more
wiley   +1 more source

Immunometabolic Modulation by Low‐Dose Sodium Butyrate: PI3K/Akt/mTOR Signalling Orchestrates Macrophage Polarization to Protect Against Clostridioides difficile Colitis

Immunology, EarlyView.
Clostridioides difficile toxins TcdA and TcdB enter intestinal epithelial cells (IECs) via specific receptors, disrupt tight‐junction integrity and activate PI3K/Akt/mTOR signalling, promoting inflammasome assembly and IL‐1β release. Toxin‐induced IEC apoptosis further weakens the epithelial barrier.
Sisi Zhang, Zhou Jingxiang, Caixia Tan, Yuanyuan Xiao, Ju Zou, Biyue Tian, Anhua Wu, Chunhui Li   +7 more
wiley   +1 more source

Stem Cells From Dental Pulp, Periodontal Tissues, and Other Oral Sources: Biological Concepts and Regenerative Potential

Journal of Periodontal Research, EarlyView.
A graphical abstract recapping the different sources of dental, periodontal, and other oral‐derived mesenchymal stromal cells (MSCs) and their regenerative mechanisms and potentials. The review's article findings bridge fundamental biological science with translational advances, highlighting the significance of MSCs in craniofacial regenerative ...
Karim M. Fawzy El‐Sayed, Sara El Moshy, Israa Ahmed Radwan, Dina Rady, Aiah A. El‐Rashidy, Marwa M. S. Abbass, Christof E. Dörfer   +6 more
wiley   +1 more source

A Phosphorylation‐Dependent Partner‐Switching‐Like Module Regulates a Glycosyltransferase Required for Heterocyst Polysaccharide Layer Formation in Anabaena sp. Strain PCC 7120

Molecular Microbiology, EarlyView.
The glycosyltransferase All4160 is regulated by the reversible phosphorylation of Ser74. The kinase Alr3423 phosphorylates and inactivates All4160, while the SpoIIE‐like phosphatase HenR restores its activity through dephosphorylation. A nonphosphorylatable variant of All4160 bypasses the need for HenR, which demonstrates that a phosphorylation ...
Mai Harada, Satoshi Matsuoka, Shigeki Ehira   +2 more
wiley   +1 more source