journal
https://read.qxmd.com/read/38436545/inr-and-pi3k-maintain-intestinal-homeostasis-through-stat-egfr-and-notch-signaling-in-enteroblasts
#1
JOURNAL ARTICLE
Jiewei Wang, Hongmei Xue, Xinyu Yi, Hyonil Kim, Yangguang Hao, Li Hua Jin
To maintain the integrity of the adult gut, the proliferation and differentiation of stem cells must be strictly controlled. Several signaling pathways control the proliferation and differentiation of Drosophila intestinal epithelial cells. Although the modulatory effects of insulin pathway components on cell proliferation have been characterized, their specific role in which cell type and how these components interact with other regulatory signaling pathways remain largely unclear. In this study, we found that InR/Pi3K has major functions in enteroblasts (EBs) that were not previously described...
March 4, 2024: Journal of Cellular Biochemistry
https://read.qxmd.com/read/38372191/selection-of-internalizing-rna-aptamers-into-human-breast-cancer-cells-derived-from-primary-sites
#2
JOURNAL ARTICLE
Pricila da Silva Cunha, Marcelo Coutinho de Miranda, Mariane Izabella Abreu de Melo, Andrea da Fonseca Ferreira, Joana Lobato Barbosa, Junnia Alvarenga de Carvalho Oliveira, Tércio de Souza Goes, Dawidson Assis Gomes, Alfredo Miranda de Goes
Breast cancer is the most common cancer in women. Although chemotherapy is still broadly used in its treatment, adverse effects remain a challenge. In this scenario, aptamers emerge as a promising alternative for theranostic applications. Studies using breast cancer cell lines provide useful information in laboratory and preclinical investigations, most of which use cell lines established from metastatic sites. However, these cell lines correspond to cell populations of the late stage of tumor progression. On the other hand, studies using breast cancer cells established from primary sites make it possible to search for new theranostic approaches in the early stages of the disease...
February 19, 2024: Journal of Cellular Biochemistry
https://read.qxmd.com/read/38372186/continuous-genetic-monitoring-of-transient-mesenchymal-gene-activities-in-distal-tubule-and-collecting-duct-epithelial-cells-during-renal-fibrosis
#3
JOURNAL ARTICLE
Zihang Xu, Shaotong Zhang, Tingting Han, Letong Cai, Simin Zhong, Xiaojie Yang, Shaohua Zhang, Yan Li, Kuo Liu, Bin Zhou, Xueying Tian
Epithelial cells (ECs) have been proposed to contribute to myofibroblasts or fibroblasts through epithelial-mesenchymal transition (EMT) during renal fibrosis. However, since EMT may occur dynamically, transiently, and reversibly during kidney fibrosis, conventional lineage tracing based on Cre-loxP recombination in renal ECs could hardly capture the transient EMT activity, yielding inconsistent results. Moreover, previous EMT research has primarily focused on renal proximal tubule ECs, with few reports of distal tubules and collecting ducts...
February 19, 2024: Journal of Cellular Biochemistry
https://read.qxmd.com/read/38372014/the-molecular-circadian-rhythms-regulating-the-cell-cycle
#4
REVIEW
Qin Zhou, Ruohan Wang, Yunxia Su, Bowen Wang, Yunfei Zhang, Ximing Qin
The circadian clock controls the expression of a large proportion of protein-coding genes in mammals and can modulate a wide range of physiological processes. Recent studies have demonstrated that disruption or dysregulation of the circadian clock is involved in the development and progression of several diseases, including cancer. The cell cycle is considered to be the fundamental process related to cancer. Accumulating evidence suggests that the circadian clock can control the expression of a large number of genes related to the cell cycle...
February 19, 2024: Journal of Cellular Biochemistry
https://read.qxmd.com/read/38369774/identification-of-putative-antiviral-bioactive-compounds-derived-from-family-asteraceae-an-in-silico-approach
#5
JOURNAL ARTICLE
Swati Srivastava, Mohd Shahnawaz Khan, Saheem Ahmad, Amit Dubey, Vijay Laxmi Saxena, Mohammad Haneef
This computational study investigates 21 bioactive compounds from the Asteraceae family as potential inhibitors targeting the Spike protein (S protein) of SARS-CoV-2. Employing in silico methods and simulations, particularly CDOCKER and MM-GBSA, the study identifies two standout compounds, pterodontic acid and cichoric acid, demonstrating robust binding affinities (-46.1973 and -39.4265 kcal/mol) against the S protein. Comparative analysis with Favipiravir underscores their potential as promising inhibitors...
February 18, 2024: Journal of Cellular Biochemistry
https://read.qxmd.com/read/38362828/induction-of-stearoyl-coa-desaturase-confers-cell-density-dependent-ferroptosis-resistance-in-melanoma
#6
JOURNAL ARTICLE
Hitomi Shirahama, Yuri Tani, Satomi Tsukahara, Yuka Okamoto, Akiko Hasebe, Tomomiki Noda, Shuji Ando, Masaru Ushijima, Masaaki Matsuura, Akihiro Tomida
Ferroptosis is a form of regulated cell death that is induced by inhibiting glutathione peroxidase 4 (GPX4), which eliminates lipid peroxidation. Ferroptosis induction is influenced by the cell environment. However, the cellular states altering ferroptosis susceptibility remain largely unknown. We found that melanoma cell lines became resistant to ferroptosis as cell density increased. Comparative transcriptome and metabolome analyses revealed that cell density-dependent ferroptosis resistance was coupled with a shift toward a lipogenic phenotype accompanied by strong induction of stearoyl-CoA desaturase (SCD)...
February 16, 2024: Journal of Cellular Biochemistry
https://read.qxmd.com/read/38358093/cannabidiol-activates-mapk-pathway-to-induce-apoptosis-paraptosis-and-autophagy-in-colorectal-cancer-cells
#7
JOURNAL ARTICLE
Na Young Kim, Chakrabhavi Dhananjaya Mohan, Gautam Sethi, Kwang Seok Ahn
Mitogen-activated protein kinase (MAPK) activation by natural compounds is known to be involved in the induction of apoptosis, paraptosis, and autophagy. Cannabidiol (CBD), a bioactive compound found in Cannabis sativa, is endowed with many pharmacological activities. We investigated the cytotoxic effect of CBD in a panel of colorectal cancer (CRC) cells (HT-29, SW480, HCT-116, and HCT-15). CBD induced significant cytotoxicity as evidenced by the results of MTT  assay, live-dead assay, and flow cytometric analysis...
February 15, 2024: Journal of Cellular Biochemistry
https://read.qxmd.com/read/38358025/novel-oncogenic-transcriptional-targets-of-mutant-p53-in-esophageal-squamous-cell-carcinoma
#8
JOURNAL ARTICLE
Sara A George, Viswakalyan Kotapalli, Pandilla Ramaswamy, Raju Kumar, Swarnalata Gowrishankar, Shantveer G Uppin, Murali D Bashyam
Missense mutations in the DNA binding domain of p53 are observed frequently in esophageal squamous cell carcinoma (ESCC). Recent studies have revealed the potentially oncogenic transcriptional networks regulated by mutant p53 proteins. However, majority of these studies have focused on common "hotspot" p53 mutations while rarer mutations are poorly characterized. In this study, we report the characterization of rare, "non-hotspot" p53 mutations from ESCC. In vitro tumorigenic assays performed following ectopic-expression of certain "non-hotspot" mutant p53 proteins caused enhancement of oncogenic properties in squamous carcinoma cell lines...
February 15, 2024: Journal of Cellular Biochemistry
https://read.qxmd.com/read/38349116/intrinsic-factors-behind-long-covid-iv-hypothetical-roles-of-the-sars-cov-2-nucleocapsid-protein-and-its-liquid-liquid-phase-separation
#9
REVIEW
Ahmed Eltayeb, Faisal Al-Sarraj, Mona Alharbi, Raed Albiheyri, Ehab H Mattar, Isam M Abu Zeid, Thamer A Bouback, Atif Bamagoos, Vladimir N Uversky, Alberto Rubio-Casillas, Elrashdy M Redwan
When the SARS-CoV-2 virus infects humans, it leads to a condition called COVID-19 that has a wide spectrum of clinical manifestations, from no symptoms to acute respiratory distress syndrome. The virus initiates damage by attaching to the ACE-2 protein on the surface of endothelial cells that line the blood vessels and using these cells as hosts for replication. Reactive oxygen species levels are increased during viral replication, which leads to oxidative stress. About three-fifths (~60%) of the people who get infected with the virus eradicate it from their body after 28 days and recover their normal activity...
February 13, 2024: Journal of Cellular Biochemistry
https://read.qxmd.com/read/38348687/brg1-mediates-epigenetic-regulation-of-tnf%C3%AE-induced-ccl2-expression-in-oral-tongue-squamous-cell-carcinoma-cells
#10
JOURNAL ARTICLE
Mingyan Xu, Xuemei Lu, Feixiang Zhu, Xue Sun, Hongfa Yao, Junling Zhang, Weishi Chen, Haohao Zhu, Fan Liu, Song Lin Shi, Xiaoling Deng
Strong evidence has indicated that upregulation of chemokine (CC motif) ligand-2 (CCL2) expression and the presence of an inflammatory tumor microenvironment significantly contribute to the migratory and invasive properties of oral squamous cell carcinoma, specifically oral tongue squamous cell carcinoma (OTSCC). However, the precise epigenetic mechanism responsible for enhanced CCL2 expression in response to the inflammatory mediator tumor necrosis factor alpha (TNF-α) in OTSCC remains inadequately elucidated...
February 13, 2024: Journal of Cellular Biochemistry
https://read.qxmd.com/read/38345428/mechanotransduction-and-epigenetic-modulations-of-chromatin-role-of-mechanical-signals-in-gene-regulation
#11
REVIEW
Jagdish Mishra, Subhajit Chakraborty, Niharika, Ankan Roy, Soumen Manna, Tirthankar Baral, Piyasa Nandi, Samir K Patra
Mechanical forces may be generated within a cell due to tissue stiffness, cytoskeletal reorganization, and the changes (even subtle) in the cell's physical surroundings. These changes of forces impose a mechanical tension within the intracellular protein network (both cytosolic and nuclear). Mechanical tension could be released by a series of protein-protein interactions often facilitated by membrane lipids, lectins and sugar molecules and thus generate a type of signal to drive cellular processes, including cell differentiation, polarity, growth, adhesion, movement, and survival...
February 12, 2024: Journal of Cellular Biochemistry
https://read.qxmd.com/read/38345373/repurposing-fda-approved-drugs-to-target-malaria-through-inhibition-of-dihydrofolate-reductase-in-the-folate-biosynthesis-pathway-a-prospective-approach
#12
JOURNAL ARTICLE
Kanika Verma, Rini Chaturvedi, Ayush K Lahariya, Anil K Verma, Kristan A Schneider, Anup R Anvikar, Praveen K Bharti
Dihydrofolate reductase (DHFR) is a ubiquitous enzyme that regulates the biosynthesis of tetrahydrofolate among various species of Plasmodium parasite. It is a validated target of the antifolate drug pyrimethamine (Pyr) in Plasmodium falciparum (Pf), but its clinical efficacy has been hampered due to the emergence of drug resistance. This has made the attempt to screen Food & Drug Administration-approved drugs against wild- and mutant PfDHFR by employing an in-silico pipeline to identify potent candidates...
February 12, 2024: Journal of Cellular Biochemistry
https://read.qxmd.com/read/38332574/helicobacter-pylori-caga-protein-induces-gastric-cancer-stem-cell-like-properties-through-the-akt-foxo3a-axis
#13
JOURNAL ARTICLE
Zheng-Wei Chen, Zhe-Bin Dong, Han-Ting Xiang, Sang-Sang Chen, Wei-Ming Yu, Chao Liang
The presence of Helicobacter pylori (H. pylori) infection poses a substantial risk for the development of gastric adenocarcinoma. The primary mechanism through which H. pylori exerts its bacterial virulence is the cytotoxin CagA. This cytotoxin has the potential to induce inter-epithelial mesenchymal transition, proliferation, metastasis, and the acquisition of stem cell-like properties in gastric cancer (GC) cells infected with CagA-positive H. pylori. Cancer stem cells (CSCs) represent a distinct population of cells capable of self-renewal and generating heterogeneous tumor cells...
February 8, 2024: Journal of Cellular Biochemistry
https://read.qxmd.com/read/38317535/identification-of-potent-brd4-bd1-inhibitors-using-classical-and-steered-molecular-dynamics-based-free-energy-analysis
#14
JOURNAL ARTICLE
Ashish Gupta, Rituraj Purohit
In the present work a combination of traditional and steered molecular dynamics based techniques were employed to identify potential inhibitors against the human BRD4 protein (BRD4- BD1); an established drug target for multiple illnesses including various malignancies. Quinoline derivatives that were synthesized in-house were tested for their potential as new BRD4-BD1 inhibitors. Initially molecular docking experiments were performed to determine the binding poses of BRD4-BD1 inhibitors. To learn more about the thermodynamics of inhibitor binding to the BRD4-BD1 active site, the Molecular Mechanics Poisson-Boltzmann Surface Area (MM-PBSA) free energy calculations were conducted afterwards...
February 5, 2024: Journal of Cellular Biochemistry
https://read.qxmd.com/read/38308620/palmitoylation-is-required-for-sept8-204-and-sept5-to-form-vesicle-like-structure-and-colocalize-with-synaptophysin
#15
JOURNAL ARTICLE
Huicong Liu, Rong Tan, Jia Tong, Shuo Wen, Can Wu, Muding Rao, Jiangli Zhu, Shiqian Qi, Eryan Kong
Sept8 is a vesicle associated protein and there are two typical transcriptional variants (Sept8-204 and Sept8-201) expressed in mice brain. Interestingly, the coexpression of Sept8-204/Sept5 induces the formation of small sized vesicle-like structure, while that of the Sept8-201/Sept5 produces large puncta. Sept8 is previously shown to be palmitoylated. Here it was further revealed that protein palmitoylation is required for Sept8-204/Sept5 to maintain small sized vesicle-like structure and colocalize with synaptophysin, since either the expression of nonpalmitoylated Sept8-204 mutant (Sept8-204-3CA) or inhibiting Sept8-204 palmitoylation by 2-BP with Sept5 produces large puncta, which barely colocalizes with synaptophysin (SYP)...
February 3, 2024: Journal of Cellular Biochemistry
https://read.qxmd.com/read/38284235/don-drp-104-as-potent-serine-protease-inhibitors-implicated-in-sars-cov-2-infection-comparative-binding-modes-with-human-tmprss2-and-novel-therapeutic-approach
#16
JOURNAL ARTICLE
Ernest Oduro-Kwateng, Mahmoud E Soliman
Human transmembrane serine protease 2 (TMPRSS2) is an important member of the type 2 transmembrane serine protease (TTSP) family with significant therapeutic markings. The search for potent TMPRSS2 inhibitors against severe acute respiratory syndrome coronavirus 2 infection with favorable tissue specificity and off-site toxicity profiles remains limited. Therefore, probing the anti-TMPRSS2 potential of enhanced drug delivery systems, such as nanotechnology and prodrug systems, has become compelling. We report the first in silico study of TMPRSS2 against a prodrug, [isopropyl(S)-2-((S)-2-acetamido-3-(1H-indol-3-yl)-propanamido)-6-diazo-5-oxo-hexanoate] also known as DRP-104 synthesized from 6-Diazo-5-oxo-l-norleucine (DON)...
January 29, 2024: Journal of Cellular Biochemistry
https://read.qxmd.com/read/38239037/in-silico-analysis-of-alpha-synuclein%C3%A2-protein-variants-and-posttranslational-modifications-related-to-parkinson-s-disease
#17
JOURNAL ARTICLE
Aloma N R da Silva, Gabriel R C Pereira, Luiz Felippe Sarmento Bonet, Tiago Fleming Outeiro, Joelma F De Mesquita
Parkinson's disease (PD) is among the most prevalent neurodegenerative disorders, affecting over 10 million people worldwide. The protein encoded by the SNCA gene, alpha-synuclein (ASYN), is the major component of Lewy body (LB) aggregates, a histopathological hallmark of PD. Mutations and posttranslational modifications (PTMs) in ASYN are known to influence protein aggregation and LB formation, possibly playing a crucial role in PD pathogenesis. In this work, we applied computational methods to characterize the effects of missense mutations and PTMs on the structure and function of ASYN...
January 18, 2024: Journal of Cellular Biochemistry
https://read.qxmd.com/read/38229533/metformin-ameliorates-mitochondrial-damage-induced-by-c9orf72-poly-gr-via-upregulating-akt-phosphorylation
#18
JOURNAL ARTICLE
Yiyuan Feng, Zhongyun Xu, Hongfu Jin, Yuanyuan Chen, Chenglai Fu, Yu Zhang, Yafu Yin, Hui Wang, Weiwei Cheng
Amyotrophic lateral sclerosis (ALS) and frontotemporal dementia (FTD) are devastating neurodegenerative diseases with no effective cure. GGGGCC repeat expansion in C9orf72 is the most common genetic cause of both ALS and FTD. A key pathological feature of C9orf72 related ALS/FTD is the presence of abnormal dipeptide repeat proteins translated from GGGGCC repeat expansion, including poly Glycine-Arginine (GR). In this study, we observed that (GR)50 conferred significant mitochondria damage and cytotoxicity. Metformin, the most widely used clinical drug, successfully relieved (GR)50 induced mitochondrial damage and inhibited (GR)50 related cytotoxicity...
January 17, 2024: Journal of Cellular Biochemistry
https://read.qxmd.com/read/38229522/clock-gene-per2-modulates-epidermal-tissue-repair-in-vivo
#19
JOURNAL ARTICLE
Veronica Quispe Yujra, Ericka Janine Dantas da Silveira, Daniel Araki Ribeiro, Rogerio Moraes Castilho, Cristiane Helena Squarize
Wound healing can be influenced by genes that control the circadian cycle, including Per2 and BMAL1, which coordinate the functions of several organs, including the skin. The aim of the study was to evaluate the role of PER2 during experimental skin wound healing. Two groups (control and Per2-KO), consisting of 14 male mice each, were anesthetized by inhalation, and two 6 mm wounds were created on their dorsal skin using a punch biopsy. A silicone ring was sutured around the wound perimeter to restrict contraction...
January 16, 2024: Journal of Cellular Biochemistry
https://read.qxmd.com/read/38226684/the-bckdh-kinase-inhibitor-bt2-promotes-bcaa-disposal-and-mitochondrial-proton-leak-in-both-insulin-sensitive-and-insulin-resistant-c2c12-myotubes
#20
JOURNAL ARTICLE
Caroline N Rivera, Carly E Smith, Lillian V Draper, Madison E Kee, Norah E Cook, Macey R McGovern, Rachel M Watne, Andrew J Wommack, Roger A Vaughan
Elevated circulating branched-chain amino acids (BCAAs) have been correlated with the severity of insulin resistance, leading to recent investigations that stimulate BCAA metabolism for the potential benefit of metabolic diseases. BT2 (3,6-dichlorobenzo[b]thiophene-2-carboxylic acid), an inhibitor of branched-chain ketoacid dehydrogenase kinase, promotes BCAA metabolism by enhancing BCKDH complex activity. The purpose of this report was to investigate the effects of BT2 on mitochondrial and glycolytic metabolism, insulin sensitivity, and de novo lipogenesis both with and without insulin resistance...
January 16, 2024: Journal of Cellular Biochemistry
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