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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
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JOURNAL ARTICLE
Ying Qin, Min Wang, Xintong Meng, Mengge Wang, Haojia Jiang, Yanjie Gao, Jingxin Li, Chunyuan Zhao, Chaofeng Han, Wei Zhao, Xuexing Zheng
Optimal activation of stimulator of interferon genes (STING) protein is crucial for host defenses against pathogens and avoiding detrimental effects. Various post-translational modifications control STING activity. However, the function of interferon (IFN)-stimulated gene (ISG) 15 modification (ISGylation) in controlling STING stability and activation is unclear. Here, we show that the E3 ISGylation ligases HECT domain- and RCC1-like domain-containing proteins (HERCs; HERC5 in humans and HERC6 in mice) facilitate STING activation by mediating ISGylation of STING at K150, preventing its K48-linked ubiquitination and degradation...
April 21, 2024: Cell Reports
#3
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
#4
REVIEW
Angela Iuzzolino, Francesca Romana Pellegrini, Dante Rotili, Francesca Degrassi, Daniela Trisciuoglio
The acetylation of α-tubulin on lysine 40 is a well-studied post-translational modification which has been associated with the presence of long-lived stable microtubules that are more resistant to mechanical breakdown. The discovery of α-tubulin acetyltransferase 1 (ATAT1), the enzyme responsible for lysine 40 acetylation on α-tubulin in a wide range of species, including protists, nematodes, and mammals, dates to about a decade ago. However, the role of ATAT1 in different cellular activities and molecular pathways has been only recently disclosed...
April 23, 2024: Cellular and Molecular Life Sciences: CMLS
#5
JOURNAL ARTICLE
Aastha Ranjan, Shiloo Raj, Kamlesh Kumar Soni, Vivek Verma
We have identified and analyzed 28 SUMO-pathway proteins from pigeonpea. Enhanced transcripts of pathway genes and increased SUMO conjugation under drought signifies the role of SUMO in regulating stress. Being a protein-rich and nutrient-dense legume crop, pigeonpea (Cajanus cajan) holds a vital position in a vegetarian meal. It is a resilient crop capable of striving in harsh climates and provides a means of subsistence to small-holding farmers. Nevertheless, extremes of water scarcity and drought conditions, especially during seedling and reproductive stages, remains a major issue severely impacting the growth and overall productivity of pigeonpea...
April 23, 2024: Plant Cell Reports
#6
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
#7
JOURNAL ARTICLE
Zhao-Ming Cui, Ying-Ying Feng, Yan-Ping Gao, Hai-Tong Wang, Jiang-Tao Lu, Jia-Liang Guo, Hong-Yan Xu, Le-le Qiu, Tian-Yun Wang, Yan-Long Jia
Due to their high-quality characteristics, Chinese hamster ovary (CHO) cells have become the most widely used and reliable host cells for the production of recombinant therapeutic proteins in the biomedical field. Previous studies have shown that the m6A reader YTHDF3, which contains the YTH domain, can affect a variety of biological processes by regulating the translation and stability of target mRNAs. This study investigates the effect of YTHDF3 on transgenic CHO cells. The results indicate that stable overexpression of YTHDF3 significantly enhances recombinant protein expression without affecting host cell growth...
April 2024: Biotechnology Journal
#8
REVIEW
Ying Xu, Zhiyao Xing, Ruaa Abdalla Ibrahim Suliman, Zichuan Liu, Fengyuan Tang
Ferroptosis is an emerging form of regulated cell death in an oxidative stress- and iron-dependent manner, primarily induced by the over-production of reactive oxygen species (ROS). Manipulation of ferroptosis has been considered a promising therapeutic approach to inhibit liver tumor growth. Nevertheless, the development of resistance to ferroptosis in liver cancer poses a significant challenge in cancer treatment. Post-translational modifications (PTMs) are crucial enzymatic catalytic reactions that covalently regulate protein conformation, stability and cellular activities...
2024: Frontiers in Immunology
#9
JOURNAL ARTICLE
Christina Karakosta, Martina Samiotaki, George Panayotou, Dimitrios S Papaconstantinou, Marilita M Moschos
A cataract is a loss of the transparency of a normal crystalline lens. Multiple factors, including age as the major risk factor for cataracts, can disturb the transparency of the crystalline lens due to cumulative damage from environmental insults to proteins, particularly crystallins. Lens proteins do not turnover, and crystallins undergo extensive post-translational modifications (PTMs) with age in order to interact with each other and maintain their soluble basis for lens transparency. These PTMs include truncation, oxidation, deamidation, acetylation, phosphorylation, and glycosylation...
March 2024: Curēus
#10
REVIEW
Stephanie Tam, Darcy Wear, Christopher D Morrone, Wai Haung Yu
Brain-derived extracellular vesicles (EVs) serve a prominent role in maintaining homeostasis and contributing to pathology in health and disease. This review establishes a crucial link between physiological processes leading to EV biogenesis and their impacts on disease. EVs are involved in the clearance and transport of proteins and nucleic acids, responding to changes in cellular processes associated with neurodegeneration, including autophagic disruption, organellar dysfunction, aging, and other cell stresses...
April 22, 2024: Journal of Neurochemistry
#11
JOURNAL ARTICLE
Pin-Shiuan Chen, Ying-Fa Chen, Jian-Ying Chiu, Meng-Chen Wu, Chun-Hwei Tai, Yung-Yee Chang, Min-Yu Lan, Ni-Chung Lee, Chin-Hsien Lin
OBJECTIVE: IRF2BPL mutation has been associated with a rare neurodevelopmental disorder with abnormal movements, including dystonia. However, the role of IRF2BPL in dystonia remains elusive. We aimed to investigate IRF2BPL mutations in a Taiwanese dystonia cohort. METHODS: A total of 300 unrelated patients with molecularly unassigned isolated (n = 256) or combined dystonia (n = 44) were enrolled between January 2015 and July 2023. The IRF2BPL variants were analyzed based on whole exome sequencing...
April 22, 2024: Annals of Clinical and Translational Neurology
#12
REVIEW
Saumya Sinha, Kinjal Singh, Y S Ravi Kumar, Riya Roy, Sushant Phadnis, Varsha Meena, Sankar Bhattacharyya, Bhupendra Verma
Dengue viruses (DENV) are positive-stranded RNA viruses belonging to the Flaviviridae family. DENV is the causative agent of dengue, the most rapidly spreading viral disease transmitted by mosquitoes. Each year, millions of people contract the virus through bites from infected female mosquitoes of the Aedes species. In the majority of individuals, the infection is asymptomatic, and the immune system successfully manages to control virus replication within a few days. Symptomatic individuals may present with a mild fever (Dengue fever or DF) that may or may not progress to a more critical disease termed Dengue hemorrhagic fever (DHF) or the fatal Dengue shock syndrome (DSS)...
April 22, 2024: Journal of Biomedical Science
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JOURNAL ARTICLE
Lejiao Jia, Huatian Yang, Yue Liu, Ying Zhou, Guosheng Li, Qian Zhou, Yan Xu, Zhiping Huang, Feng Ye, Jingjing Ye, Anchang Liu, Chunyan Ji
Heat shock protein 90 (HSP90) is overexpressed in numerous cancers, promotes the maturation of numerous oncoproteins and facilitates cancer cell growth. Certain HSP90 inhibitors have entered clinical trials. Although less than satisfactory clinical effects or insurmountable toxicity have compelled these trials to be terminated or postponed, these results of preclinical and clinical studies demonstrated that the prospects of targeting therapeutic strategies involving HSP90 inhibitors deserve enough attention...
April 22, 2024: Journal of Nanobiotechnology
#14
JOURNAL ARTICLE
Jonathan Z Pan, Zhanqiang Wang, Wei Sun, Peipei Pan, Wei Li, Yongtao Sun, Shoulin Chen, Amity Lin, Wulin Tan, Liangliang He, Jacob Greene, Virginia Yao, Lijun An, Rich Liang, Qifeng Li, Jessica Yu, Lingyi Zhang, Nikolaos Kyritsis, Xuan Duong Fernandez, Sara Moncivais, Esmeralda Mendoza, Pamela Fung, Gongming Wang, Xinhuan Niu, Qihang Du, Zhaoyang Xiao, Yuwen Chang, Peiyuan Lv, J Russell Huie, Abel Torres-Espin, Adam R Ferguson, Debra D Hemmerle, Jason F Talbott, Philip R Weinstein, Lisa U Pascual, Vineeta Singh, Anthony M DiGiorgio, Rajiv Saigal, William D Whetstone, Geoffrey T Manley, Sanjay S Dhall, Jacqueline C Bresnahan, Mervyn Maze, Xiangning Jiang, Neel S Singhal, Michael S Beattie, Hua Su, Zhonghui Guan
BACKGROUND: Although many molecules have been investigated as biomarkers for spinal cord injury (SCI) or ischemic stroke, none of them are specifically induced in central nervous system (CNS) neurons following injuries with low baseline expression. However, neuronal injury constitutes a major pathology associated with SCI or stroke and strongly correlates with neurological outcomes. Biomarkers characterized by low baseline expression and specific induction in neurons post-injury are likely to better correlate with injury severity and recovery, demonstrating higher sensitivity and specificity for CNS injuries compared to non-neuronal markers or pan-neuronal markers with constitutive expressions...
April 2024: Clinical and Translational Medicine
#15
JOURNAL ARTICLE
Tobit D Steinmetz, Jana Thomas, Lena Reimann, Ann-Kathrin Himmelreich, Sebastian R Schulz, Florian Golombek, Kathrin Castiglione, Hans-Martin Jäck, Susanne Brodesser, Bettina Warscheid, Dirk Mielenz
Autophagy supervises the proteostasis and survival of B lymphocytic cells. Trk-fused gene (TFG) promotes autophagosome-lysosome flux in murine CH12 B cells, as well as their survival. Hence, quantitative proteomics of CH12 tfg KO and WT B cells in combination with lysosomal inhibition should identify proteins that are prone to lysosomal degradation and contribute to autophagy and B cell survival. Lysosome inhibition via NH4 Cl unexpectedly reduced a number of proteins but increased a large cluster of translational, ribosomal, and mitochondrial proteins, independent of TFG...
April 22, 2024: Journal of Proteome Research
#16
JOURNAL ARTICLE
Adam H Metherel, Rodrigo Valenzuela, Brinley J Klievik, Giulia Cisbani, Ruxandra D Rotarescu, Melissa Gonzalez-Soto, Céline Cruciani-Guglielmacci, Sophie Layé, Christophe Magnan, David M Mutch, Richard P Bazinet
DHA is abundant in brain where it regulates cell survival, neurogenesis and neuroinflammation. DHA can be obtained from the diet or synthesized from alpha-linolenic acid (ALA; 18:3n-3) via a series of desaturation and elongation reactions occurring in the liver. Tracer studies suggest that dietary DHA can downregulate its own synthesis, but the mechanism remains undetermined and is the primary objective of this paper. First, we show by tracing 13 C content (δ13 C) of DHA via compound-specific isotope analysis (CSIA), that following low dietary DHA, the brain receives DHA synthesized from ALA...
April 20, 2024: Journal of Lipid Research
#17
JOURNAL ARTICLE
Anahí Martínez-Cárdenas, Valeria Becerril, Jorge Ortega, Issachar L López-Cuamatzi, Joaquín Arroyo-Cabrales, Iván Díaz-Pacheco, J Antonio Baeza
In the species-rich family Vespertilionidae, vesper yellow bats in the genus Rhogeessa include eleven species, three of them endemic to Mexico. These insectivorous bats provide important ecosystem services, including pest control. Even though some aspects of their biology are well- known, only a few genomic resources are available for these species, which limits our understanding of their biology. In this study, we assembled and annotated the mitochondrial genome of four species: R. aenea, R. genowaysi, R. mira, and R...
April 20, 2024: Gene
#18
JOURNAL ARTICLE
Yanhua Zhao, Liran Zhang, Jingjing Yang, Caiwen Li, Ping Li
AIMS: Trophoblast cell dysfunction is one of the important factors leading to preeclampsia (PE). Cytoplasmic polyadenylation element-binding 2 (CPEB2) has been found to be differentially expressed in PE patients, but whether it mediates PE process by regulating trophoblast cell function is unclear. METHODS: The expression of CPEB2 and somatostatin receptor 3 (SSTR3) was detected by quantitative real-time PCR, Western blot (WB) and immunofluorescence staining. Cell functions were analyzed by CCK-8 assay, EdU assay, flow cytometry and transwell assay...
April 20, 2024: Biochimica et Biophysica Acta. Molecular Basis of Disease
#19
JOURNAL ARTICLE
Meghal Desai, Hemant, Ankita Deo, Jagyanseni Naik, Prathamesh Dhamale, Avinash Kshirsagar, Tania Bose, Amitabha Majumdar
Orb2 the Drosophila homolog of cytoplasmic polyadenylation element binding (CPEB) protein forms prion-like oligomers. These oligomers consist of Orb2A and Orb2B isoforms and their formation is dependent on the oligomerization of the Orb2A isoform. Drosophila with a mutation diminishing Orb2A's prion-like oligomerization forms long-term memory but fails to maintain it over time. Since this prion-like oligomerization of Orb2A plays a crucial role in the maintenance of memory, here, we aim to find what regulates this oligomerization...
April 2024: PLoS Biology
#20
JOURNAL ARTICLE
Maddison Archer, Diane Begemann, Edgar Gonzalez-Kozlova, Prerna R Nepali, Estefania Labanca, Peter Shepherd, Navneet Dogra, Nora Navone, Natasha Kyprianou
Understanding the mechanisms underlying resistance is critical to improving therapeutic outcomes in patients with metastatic castration-resistant prostate cancer (mCRPC). Previous work showed dynamic interconversions between epithelial-mesenchymal transition (EMT) to mesenchymal-epithelial transition (MET) defines the phenotypic landscape of prostate tumors, as a potential driver of emergence of therapeutic resistance. In this study, we use in vitro and in vivo preclinical MDA PCa PDX models of resistant human prostate cancer to determine molecular mechanisms of cross-resistance between anti-androgen therapy and taxane chemotherapy, underlying the therapeutically resistant phenotype...
April 22, 2024: Molecular Cancer Research: MCR
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