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JOURNAL ARTICLE
Yangdan Liu, Chiakang Ho, Dongsheng Wen, Zhiyuan Zhou, Tingyu Tsai, Jiaming Sun, Yuxin Liu, Ya Gao, Qingfeng Li, Yifan Zhang
BACKGROUND: In recent decades, chronic wounds have become an increasingly significant clinical concern due to their increasing morbidity and socioeconomic toll. However, there is currently no product available on the market that specifically targets this intricate process. One clear indicator of delayed wound repair is the inhibition of re-epithelialization. Yes-associated protein (YAP), which is a potential focal point for tissue repair and regeneration, has been shown to be prominent in several studies...
April 23, 2024: Plastic and Reconstructive Surgery
#2
JOURNAL ARTICLE
Madeleine R Smith, Parisa Naeli, Seyed M Jafarnejad, Guilherme Costa
Regulation of subcellular messenger (m)RNA localization is a fundamental biological mechanism, which adds a spatial dimension to the diverse layers of post-transcriptional control of gene expression. The cellular compartment in which mRNAs are located may define distinct aspects of the encoded proteins, ranging from production rate and complex formation to localized activity. Despite the detailed roles of localized mRNAs that have emerged over the past decades, the identity of factors anchoring mRNAs to subcellular domains remains ill-defined...
April 30, 2024: Proceedings of the National Academy of Sciences of the United States of America
#3
JOURNAL ARTICLE
Daniel E Jacobsen, Makaela M Montoya, Trent R Llewellyn, Kaitlyn Martinez, Kristen M Wilding, Kiersten D Lenz, Carrie A Manore, Jessica Z Kubicek-Sutherland, Harshini Mukundan
Universal and early recognition of pathogens occurs through recognition of evolutionarily conserved pathogen associated molecular patterns (PAMPs) by innate immune receptors and the consequent secretion of cytokines and chemokines. The intrinsic complexity of innate immune signaling and associated signal transduction challenges our ability to obtain physiologically relevant, reproducible and accurate data from experimental systems. One of the reasons for the discrepancy in observed data is the choice of measurement strategy...
2024: PloS One
#4
JOURNAL ARTICLE
Martijn de Roij, Jan Willem Borst, Dolf Weijers
The signaling molecule auxin sits at the nexus of plant biology and coordinates essentially all growth and developmental processes in plants. Auxin molecules are transported throughout plant tissues and are capable of evoking highly specific physiological responses in plant cells by inducing various molecular pathways. In many of these pathways, proteolysis plays a crucial role for correct physiological responses. This review provides a chronology of the discovery and characterisation of the auxin receptor, which is a fascinating example of separate research trajectories ultimately converging on the discovery of a core auxin signaling hub which relies on degradation of a family of transcriptional inhibitor proteins - the Aux/IAAs...
April 23, 2024: Plant Cell
#5
JOURNAL ARTICLE
Islam A Abdelhakim, Yushi Futamura, Yukihiro Asami, Hideaki Hanaki, Naoko Kito, Sachiko Masuda, Arisa Shibata, Atsuya Muranaka, Hiroyuki Koshino, Ken Shirasu, Hiroyuki Osada, Jun Ishikawa, Shunji Takahashi
Actinomycetes are prolific producers of natural products, particularly antibiotics. However, a significant proportion of its biosynthetic gene clusters (BGCs) remain silent under typical laboratory conditions. This limits the effectiveness of conventional isolation methods for the discovery of novel natural products. Genetic interventions targeting the activation of silent gene clusters are necessary to address this challenge. Streptomyces antibiotic regulatory proteins (SARPs) act as cluster-specific activators and can be used to target silent BGCs for the discovery of new antibiotics...
April 23, 2024: Journal of Natural Products
#6
JOURNAL ARTICLE
Elijah Abraham, A M Gihan K Athapaththu, Kalina R Atanasova, Qi-Yin Chen, Taylor J Corcoran, Juan Piloto, Cheng-Wei Wu, Ranjala Ratnayake, Hendrik Luesch, Keith P Choe
C. elegans numr-1/2 (<u>nu</u>clear-localized <u>m</u>etal-<u>r</u>esponsive) is an identical gene pair encoding a nuclear protein previously shown to be activated by cadmium and disruption of the integrator RNA metabolism complex. We took a chemical genetic approach to further characterize regulation of this novel metal response by screening 41,716 compounds and extracts for numr-1p::GFP activation. The most potent activator was chaetocin, a fungal 3,6-epidithiodiketopiperazine (ETP) with promising anticancer activity...
April 23, 2024: ACS Chemical Biology
#7
JOURNAL ARTICLE
Yunguang Qiu, Yuan Hou, Dhruv Gohel, Yadi Zhou, Jielin Xu, Marina Bykova, Yuxin Yang, James B Leverenz, Andrew A Pieper, Ruth Nussinov, Jessica Z K Caldwell, J Mark Brown, Feixiong Cheng
Shifts in the magnitude and nature of gut microbial metabolites have been implicated in Alzheimer's disease (AD), but the host receptors that sense and respond to these metabolites are largely unknown. Here, we develop a systems biology framework that integrates machine learning and multi-omics to identify molecular relationships of gut microbial metabolites with non-olfactory G-protein-coupled receptors (termed the "GPCRome"). We evaluate 1.09 million metabolite-protein pairs connecting 408 human GPCRs and 335 gut microbial metabolites...
April 21, 2024: Cell Reports
#8
JOURNAL ARTICLE
Henry T W Blest, Alexander Redmond, Jed Avissar, Jake Barker, Anne Bridgeman, Gerissa Fowler, Lise Chauveau, Jonny Hertzog, Iolanda Vendrell, Roman Fischer, Marie B Iversen, Lichen Jing, David M Koelle, Søren R Paludan, Benedikt M Kessler, Colin M Crump, Jan Rehwinkel
DNA sensing is important for antiviral immunity. The DNA sensor cGAS synthesizes 2'3'-cyclic GMP-AMP (cGAMP), a second messenger that activates STING, which induces innate immunity. cGAMP not only activates STING in the cell where it is produced but cGAMP also transfers to other cells. Transporters, channels, and pores (including SLC19A1, SLC46A2, P2X7, ABCC1, and volume-regulated anion channels (VRACs)) release cGAMP into the extracellular space and/or import cGAMP. We report that infection with multiple human viruses depletes some of these cGAMP conduits...
April 22, 2024: Cell Reports
#9
JOURNAL ARTICLE
Jonathan Parkinson, Wei Wang
MOTIVATION: Antibody therapeutic candidates must exhibit not only tight binding to their target but also good developability properties, especially low risk of immunogenicity. RESULTS: In this work, we fit a simple generative model, SAM, to sixty million human heavy and seventy million human light chains. We show that the probability of a sequence calculated by the model distinguishes human sequences from other species with the same or better accuracy on a variety of benchmark datasets containing >400 million sequences than any other model in the literature, outperforming large language models (LLMs) by large margins...
April 23, 2024: Bioinformatics
#10
JOURNAL ARTICLE
Feng Zhan, Jun Zhang, Ping He, Wenteng Chen, Yanhong Ouyang
Sepsis, critical condition marked by severe organ dysfunction from uncontrolled infection, involves the endothelium significantly. Macrophages, through paracrine actions, play a vital role in sepsis, but their mechanisms in sepsis pathogenesis remain elusive. Objective: We aimed to explore how macrophage-derived exosomes with low miR-141 expression promote pyroptosis in endothelial cells (ECs). Exosomes from THP-1 cell supernatant were isolated and characterized. The effects of miR-141 mimic/inhibitor on apoptosis, proliferation, and invasion of Human Umbilical Vein Endothelial Cells (HUVECs) were assessed using flow cytometry, CCK-8, and transwell assays...
2024: International Journal of Immunopathology and Pharmacology
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JOURNAL ARTICLE
Yuki Hitomi, Kazuko Ueno, Yoshihiro Aiba, Nao Nishida, Michihiro Kono, Mitsuki Sugihara, Yosuke Kawai, Minae Kawashima, Seik-Soon Khor, Kazuhiro Sugi, Hirotaka Kouno, Hiroshi Kouno, Atsushi Naganuma, Satoru Iwamoto, Shinji Katsushima, Kiyoshi Furuta, Toshiki Nikami, Tomohiko Mannami, Tsutomu Yamashita, Keisuke Ario, Tatsuji Komatsu, Fujio Makita, Masaaki Shimada, Noboru Hirashima, Shiro Yokohama, Hideo Nishimura, Rie Sugimoto, Takuya Komura, Hajime Ota, Motoyuki Kojima, Makoto Nakamuta, Naoyuki Fujimori, Kaname Yoshizawa, Yutaka Mano, Hironao Takahashi, Kana Hirooka, Satoru Tsuruta, Takeaki Sato, Kazumi Yamasaki, Yuki Kugiyama, Yasuhide Motoyoshi, Tomoyuki Suehiro, Akira Saeki, Kosuke Matsumoto, Shinya Nagaoka, Seigo Abiru, Hiroshi Yatsuhashi, Masahiro Ito, Kazuhito Kawata, Akinobu Takaki, Kuniaki Arai, Teruko Arinaga, Masanori Abe, Masaru Harada, Makiko Taniai, Mikio Zeniya, Hiromasa Ohira, Shinji Shimoda, Atsumasa Komori, Atsushi Tanaka, Kazuyoshi Ishigaki, Masao Nagasaki, Katsushi Tokunaga, Minoru Nakamura
BACKGROUND AIMS: Previous genome-wide association studies (GWAS) have indicated the involvement of shared (population-non-specific) and non-shared (population-specific) susceptibility genes in the pathogenesis of primary biliary cholangitis (PBC) among European and East-Asian populations. Although a meta-analysis of these distinct populations has recently identified more than 20 novel PBC susceptibility loci, analyses of population-specific genetic architecture are still needed for a more comprehensive search for genetic factors in PBC...
April 23, 2024: Hepatology: Official Journal of the American Association for the Study of Liver Diseases
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JOURNAL ARTICLE
Dengyun Zhao, Yaping Guo, Huifang Wei, Xuechao Jia, Yafei Zhi, Guiliang He, Wenna Nie, Limeng Huang, Penglei Wang, Kyle Vaughn Laster, Zhicai Liu, Jinwu Wang, Mee-Hyun Lee, Zigang Dong, Kangdong Liu
Esophageal squamous cell carcinoma (ESCC) is the predominant form of esophageal cancer and is characterized by an unfavorable prognosis. To elucidate the distinct molecular alterations in ESCC and investigate therapeutic targets, we performed a comprehensive analysis of transcriptomic, proteomic, and phosphoproteomic data derived from 60 paired treatment-naive ESCC and adjacent non-tumor tissue samples. Additionally, we conducted a correlation analysis to describe the regulatory relationship between transcriptomic and proteomic processes, revealing alterations in key metabolic pathways...
April 23, 2024: JCI Insight
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JOURNAL ARTICLE
Adam R Evans, Joseph Mulholland, Michael J Lewis, Ping Hu
Peptide mapping with mass spectrometry (MS) is an important tool for protein characterization in the biopharmaceutical industry. Historically, peptide mapping monitors post-translational modifications (PTMs) of protein products and process intermediates during development. Multi-attribute monitoring (MAM) methods have been used previously in commercial release and stability testing panels to ensure control of selected critical quality attributes (CQAs). Our goal is to use MAM methods as part of an overall analytical testing strategy specifically focused on CQAs, while removing or replacing historical separation methods that do not effectively distinguish CQAs from non-CQAs due to co-elution...
2024: MAbs
#14
JOURNAL ARTICLE
Jian Wang, Diheng Gu, Ke Jin, Hualong Shen, Yaohua Qian
Intracerebral hemorrhage (ICH) is a fatal brain injury, but the current treatments for it are inadequate to reduce the severity of secondary brain injury. Our study aims to explore the molecular mechanism of Egr1 and Phlda1 in regulating hemin-induced neuronal pyroptosis, and hope to provide novel therapeutic targets for ICH treatment. Mouse hippocampal neuron cells treated with hemin were used to simulate an in-vitro ICH model. Using qRT-PCR and western blot to evaluate mRNA and protein concentrations. MTT assay was utilized to assess cell viability...
April 17, 2024: Neuroreport
#15
REVIEW
Arriana Gkouvi, Sotirios G Tsiogkas, Dimitrios P Bogdanos, Helen Gika, Dimitrios G Goulis, Maria G Grammatikopoulou
PURPOSE OF REVIEW: Fibromyalgia syndrome (FMS) is a disease of unknown pathophysiology, with the diagnosis being based on a set of clinical criteria. Proteomic analysis can provide significant biological information for the pathophysiology of the disease but may also reveal biomarkers for diagnosis or therapeutic targets. The present systematic review aims to synthesize the evidence regarding the proteome of adult patients with FMS using data from observational studies. RECENT FINDINGS: An extensive literature search was conducted in MEDLINE/PubMed, CENTRAL, and clinicaltrials...
April 23, 2024: Current Pain and Headache Reports
#16
JOURNAL ARTICLE
Siji Zhao, Ruya Yin, Mengwei Zhang, Ziqi Zhai, Zhen Shen, Yan Mou, Dan Xu, Ligang Zhou, Daowan Lai
The endophytic fungus Berkleasmium sp. Dzf12 that was isolated from Dioscorea zingiberensis, is a proficient producer of palmarumycins, which are intriguing polyketides of the spirobisnaphthalene class. These compounds displayed a wide range of bioactivities, including antibacterial, antifungal, and cytotoxic activities. However, conventional genetic manipulation of Berkleasmium sp. Dzf12 is difficult and inefficient, partially due to the slow-growing, non-sporulating, and highly pigmented behavior of this fungus...
April 23, 2024: World Journal of Microbiology & Biotechnology
#17
JOURNAL ARTICLE
Ting Sun, Bin Liu, Lize Cai, Youxin Zhou, Wei Yang, Yanyan Li
PURPOSE: A strong immunosuppressive tumor microenvironment (TME) represents the major barrier responsible for the failure of current immunotherapy approaches in treating Glioblastoma Multiforme (GBM). Within the TME, the regulatory T cells (Tregs) exert immunosuppressive effects on CD8+ T cell - mediated anti-cancer immune killing. Consequently, targeting and inhibiting their immunosuppressive function emerges as an effective therapeutic strategy for GBM. The present study aimed to investigate the mechanisms and effects of Suberanilohydroxamic Acid (SAHA), a histone deacetylase inhibitor, on immunosuppressive Tregs...
April 23, 2024: Journal of Neuro-oncology
#18
JOURNAL ARTICLE
Kathryn E Reynolds, Eileen Huang, Monica Sabbineni, Eliza Wiseman, Nadeem Murtaza, Desmond Ahuja, Matt Napier, Kathryn M Murphy, Karun K Singh, Angela L Scott
Neuronal hyperexcitability within developing cortical circuits is a common characteristic of several heritable neurodevelopmental disorders, including Fragile X Syndrome (FXS), intellectual disability and autism spectrum disorders (ASD). While this aberrant circuitry is typically studied from a neuron-centric perspective, glial cells secrete soluble factors that regulate both neurite extension and synaptogenesis during development. The nucleotide-mediated purinergic signalling system is particularly instrumental in facilitating these effects...
April 23, 2024: Molecular Neurobiology
#19
REVIEW
Huimin Wu, Yixiang Sun, Yimai Wang, Liqiang Luo, Yizhi Song
The CRISPR-Cas system consists of Cas proteins and single-stranded RNAs that recruit Cas proteins and specifically target the nucleic acid. Some Cas proteins can accurately cleave the target nucleic acid under the guidance of the single-stranded RNAs. Due to its exceptionally high specificity, the CRISPR-Cas system is now widely used in various fields such as gene editing, transcription regulation, and molecular diagnosis. However, the huge size of the most frequently utilized Cas proteins (Cas9, Cas12a, and Cas13, which contain 950-1,400 amino acids) can limit their applicability, especially in eukaryotic gene editing, where larger Cas proteins are difficult to deliver into the target cells...
April 23, 2024: Archives of Microbiology
#20
JOURNAL ARTICLE
Bart R Thomson, Nina Schwendinger, Katrin Beckmann, Thomas Gentinetta, Daniel Couto, Sandra Wymann, Valérie Verdon, Raphael M Buzzi, Kevin Akeret, Peter W Kronen, Eva M Weinberger, Ulrike Held, Frauke Seehusen, Henning Richter, Dominik J Schaer, Michael Hugelshofer
Secondary brain injury (SBI) occurs with a lag of several days post-bleeding in patients with aneurysmal subarachnoid hemorrhage (aSAH) and is a strong contributor to mortality and long-term morbidity. aSAH-SBI coincides with cell-free hemoglobin (Hb) release into the cerebrospinal fluid. This temporal association and convincing pathophysiological concepts suggest that CSF-Hb could be a targetable trigger of SBI. However, sparse experimental evidence for Hb's neurotoxicity in vivo defines a significant research gap for clinical translation...
April 23, 2024: Translational Stroke Research
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