Journal of cellular biochemistry最新文献

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In Silico Prediction of Potential Inhibitors for Targeting RNA CAG Repeats via Molecular Docking and Dynamics Simulation: A Drug Discovery Approach 通过分子对接和动力学模拟对靶向 RNA CAG 重复序列的潜在抑制剂进行硅学预测:药物发现方法。
IF 3 3区 生物学
Journal of cellular biochemistry Pub Date : 2024-06-17 DOI: 10.1002/jcb.30611
Surbhi Singh, Suchitra Singh, Deepika Joshi, Chhandamayee Mohanty, Royana Singh
{"title":"In Silico Prediction of Potential Inhibitors for Targeting RNA CAG Repeats via Molecular Docking and Dynamics Simulation: A Drug Discovery Approach","authors":"Surbhi Singh,&nbsp;Suchitra Singh,&nbsp;Deepika Joshi,&nbsp;Chhandamayee Mohanty,&nbsp;Royana Singh","doi":"10.1002/jcb.30611","DOIUrl":"10.1002/jcb.30611","url":null,"abstract":"<div>\u0000 \u0000 <p>Spinocerebellar ataxia (SCA) is a rare neurological illness inherited dominantly that causes severe impairment and premature mortality. While each rare disease may affect individuals infrequently, collectively they pose a significant healthcare challenge. It is mainly carried out due to the expansion of RNA triplet (CAG) repeats, although missense or point mutations can also be induced. Unfortunately, there is no cure; only symptomatic treatments are available. To date, SCA has about 48 subtypes, the most common of these being SCA 1, 2, 3, 6, 7, 12, and 17 having CAG repeats. Using molecular docking and molecular dynamics (MD) simulation, this study seeks to investigate effective natural herbal neuroprotective compounds against CAG repeats, which are therapeutically significant in treating SCA. Initially, virtual screening followed by molecular docking was used to estimate the binding affinity of neuroprotective natural compounds toward CAG repeats. The compound with the highest binding affinity, somniferine, was then chosen for MD simulation. The structural stability, interaction mechanism, and conformational dynamics of CAG repeats and somniferine were investigated via MD simulation. The MD study revealed that during the simulation period, the interaction between CAG repeats and somniferine stabilizes and results in fewer conformational variations. This in silico study suggests that Somniferine can be used as a therapeutic medication against RNA CAG repeats in SCA.</p>\u0000 </div>","PeriodicalId":15219,"journal":{"name":"Journal of cellular biochemistry","volume":"125 7","pages":""},"PeriodicalIF":3.0,"publicationDate":"2024-06-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141330971","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Exosomes From Muscle-Derived Stem Cells Repair Peripheral Nerve Injury by Inhibiting Ferroptosis via the Keap1-Nrf2-Ho-1 Axis 肌肉干细胞外泌体通过Keap1-Nrf2-Ho-1轴抑制铁凋亡修复周围神经损伤
IF 3 3区 生物学
Journal of cellular biochemistry Pub Date : 2024-06-17 DOI: 10.1002/jcb.30614
Ziwen Liu, Xiangyu Zeng, Wei Bian, Haoze Li, Bu Tegeleqi, Zewei Gao, Jianyu Liu
{"title":"Exosomes From Muscle-Derived Stem Cells Repair Peripheral Nerve Injury by Inhibiting Ferroptosis via the Keap1-Nrf2-Ho-1 Axis","authors":"Ziwen Liu,&nbsp;Xiangyu Zeng,&nbsp;Wei Bian,&nbsp;Haoze Li,&nbsp;Bu Tegeleqi,&nbsp;Zewei Gao,&nbsp;Jianyu Liu","doi":"10.1002/jcb.30614","DOIUrl":"10.1002/jcb.30614","url":null,"abstract":"<div>\u0000 \u0000 <p>Currently, the clinical outcomes of peripheral nerve injuries are suboptimal, highlighting the urgent need to understand the mechanisms of nerve injury to enhance treatment strategies. Muscle-derived stem cells (MDSCs) are a diverse group of multipotent cells that hold promise for peripheral nerve regeneration due to their strong antioxidant and regenerative properties. Our research has revealed that severe ferroptosis occurs in the sciatic nerve and ipsilateral dorsal root ganglion following sciatic nerve injury. Interestingly, we have observed that MDSC-derived exosomes effectively suppress cell ferroptosis and enhance cell viability in Schwann cells and dorsal root ganglion cells. Treatment with exosomes led to increased expression of BDNF and P62 in Schwann cells, decreased expression of Keap1, Nrf2, and HO-1 in Schwann cells, and upregulated dorsal root ganglion cells. Rats treated with exosomes exhibited improvements in sciatic nerve function, sensitivity to stimuli, and reduced muscle atrophy, indicating a positive impact on post-injury recovery. In conclusion, our findings demonstrate the occurrence of ferroptosis in the sciatic nerve and dorsal root ganglion post-injury, with MDSC exosomes offering a potential therapeutic strategy by inhibiting ferroptosis, activating the Keap1-Nrf2-HO-1 pathway, and optimizing the post-injury repair environment.</p>\u0000 </div>","PeriodicalId":15219,"journal":{"name":"Journal of cellular biochemistry","volume":"125 8","pages":""},"PeriodicalIF":3.0,"publicationDate":"2024-06-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141330970","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
BMP1 Promotes Keloid by Inducing Fibroblast Inflammation and Fibrogenesis BMP1 通过诱导成纤维细胞炎症和纤维生成促进瘢痕形成
IF 3 3区 生物学
Journal of cellular biochemistry Pub Date : 2024-06-11 DOI: 10.1002/jcb.30609
Yi Wang, Yahui Chen, Jinfeng Wu, Xiangguang Shi
{"title":"BMP1 Promotes Keloid by Inducing Fibroblast Inflammation and Fibrogenesis","authors":"Yi Wang,&nbsp;Yahui Chen,&nbsp;Jinfeng Wu,&nbsp;Xiangguang Shi","doi":"10.1002/jcb.30609","DOIUrl":"10.1002/jcb.30609","url":null,"abstract":"<div>\u0000 \u0000 <p>Keloid is a typical fibrotic and inflammatory skin disease with unclear mechanisms and few therapeutic targets. In this study, we found that BMP1 was significantly increased in a collagen high-expressing subtype of fibroblast by reanalyzing a public single-cell RNA-sequence data set of keloid. The number of BMP1-positive fibroblast cells was increased in keloid fibrotic loci. Increased levels of BMP1 were further validated in the skin tissues and fibroblasts from keloid patients. Additionally, a positive correlation between BMP1 and the Keloid Area and Severity Index was found in keloid patients. In vitro analysis revealed collagen production, the phosphorylation levels of p65, and the IL-1β secretion decreased in BMP1 interfered keloid fibroblasts. Besides, the knockdown of BMP1 inhibited the growth and migration of keloid fibroblast cells. Mechanistically, BMP1 inhibition downregulated the noncanonical TGF-β pathways, including p-p38 and p-ERK1/2 signaling. Furthermore, we found the delivery of BMP1 siRNAs could significantly alleviate keloid in human keloid-bearing nude mice. Collectively, our results indicated that BMP1 exhibited various pathogenic effects on keloids as promoting cell proliferation, migration, inflammation, and ECM deposition of fibroblast cells by regulating the noncanonical TGF-β/p38 MAPK, and TGF-β/ERK pathways. BMP1-lowing strategies may appear as a potential new therapeutic target for keloid.</p></div>","PeriodicalId":15219,"journal":{"name":"Journal of cellular biochemistry","volume":"125 7","pages":""},"PeriodicalIF":3.0,"publicationDate":"2024-06-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141300757","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Characterization of ERα Signaling to Cell Proliferation Induced by Chronic and Pulsatile E2 Stimulation in 2D and 3D Cell Cultures 二维和三维细胞培养物中慢性和脉冲性 E2 刺激诱导细胞增殖的 ERα 信号特征。
IF 3 3区 生物学
Journal of cellular biochemistry Pub Date : 2024-06-11 DOI: 10.1002/jcb.30610
Marco Fiocchetti, Serena Raimondi, Giovanna Bastari, Stefania Bartoloni, Maria Marino, Filippo Acconcia
{"title":"Characterization of ERα Signaling to Cell Proliferation Induced by Chronic and Pulsatile E2 Stimulation in 2D and 3D Cell Cultures","authors":"Marco Fiocchetti,&nbsp;Serena Raimondi,&nbsp;Giovanna Bastari,&nbsp;Stefania Bartoloni,&nbsp;Maria Marino,&nbsp;Filippo Acconcia","doi":"10.1002/jcb.30610","DOIUrl":"10.1002/jcb.30610","url":null,"abstract":"<div>\u0000 \u0000 <p>17β-estradiol is a hormone that plays a vital role in human physiology. It acts through estrogen receptors, specifically estrogen receptor α and estrogen receptor β, and its action is determined by the pulsatile secretion in the bloodstream. 17β-estradiol affects cell proliferation, and dysregulation of 17β-estradiol:estrogen receptor α signaling contribute to the development of breast cancer. Previous research on 17β-estradiol:estrogen receptor α signaling has primarily used two-dimensional cell cultures, which do not fully recapitulate the complexity of tumors that exist in a three-dimensional environment and do not consider the pulsatile nature of this hormone. To address these limitations, we studied 17β-estradiol:estrogen receptor α signaling in cell proliferation using both two-dimensional and three-dimensional breast cancer cell culture models under continuous and pulsatile stimulation conditions. Results revealed that breast cancer cells grown in an alginate-based three-dimensional matrix exhibited similar responsiveness to 17β-estradiol compared with cells grown in conventional two-dimensional culture plates. 17β-estradiol induced the expression of proteins containing estrogen response element in the three-dimensional model. The efficacy of the antiestrogen drugs fulvestrant (ICI182,280) and 4OH-tamoxifen was also demonstrated in the three-dimensional model. These results support the use of the three-dimensional culture model for studying tumor response to drugs and provide a more realistic microenvironment for such studies. Furthermore, the study revealed that a brief 5-min exposure to 17β-estradiol triggered a physiological response comparable with continuous hormone exposure, suggesting that the cellular response to 17β-estradiol is more important than the continuous presence of the hormone. In conclusion, the study demonstrates that the alginate-based three-dimensional culture model is suitable for studying the effects of 17β-estradiol and antiestrogen drugs on breast cancer cells, offering a more realistic representation of tumor-microenvironment interactions. The results also highlight the importance of considering the physiological importance of the temporal dynamics in studying 17β-estradiol signaling and cellular responses.</p>\u0000 </div>","PeriodicalId":15219,"journal":{"name":"Journal of cellular biochemistry","volume":"125 7","pages":""},"PeriodicalIF":3.0,"publicationDate":"2024-06-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141300758","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
AKT1 Promotes Tumorigenesis and Metastasis by Directly Phosphorylating Hexokinases AKT1 通过直接磷酸化 Hexokinases 促进肿瘤发生和转移
IF 3 3区 生物学
Journal of cellular biochemistry Pub Date : 2024-06-11 DOI: 10.1002/jcb.30613
Yuan Yu, Shuqing Wang, Yaqi Wang, Qianyi Zhang, Lina Zhao, Yang Wang, Jinghua Wu, Liyuan Han, Junli Wang, Jimin Guo, Jiarui Xue, Fenglin Dong, Jing Hua Zhang, Liu Zhang, Yan Liu, Guogang Shi, Xiaojun Zhang, Yufeng Li, Jingwu Li
{"title":"AKT1 Promotes Tumorigenesis and Metastasis by Directly Phosphorylating Hexokinases","authors":"Yuan Yu,&nbsp;Shuqing Wang,&nbsp;Yaqi Wang,&nbsp;Qianyi Zhang,&nbsp;Lina Zhao,&nbsp;Yang Wang,&nbsp;Jinghua Wu,&nbsp;Liyuan Han,&nbsp;Junli Wang,&nbsp;Jimin Guo,&nbsp;Jiarui Xue,&nbsp;Fenglin Dong,&nbsp;Jing Hua Zhang,&nbsp;Liu Zhang,&nbsp;Yan Liu,&nbsp;Guogang Shi,&nbsp;Xiaojun Zhang,&nbsp;Yufeng Li,&nbsp;Jingwu Li","doi":"10.1002/jcb.30613","DOIUrl":"10.1002/jcb.30613","url":null,"abstract":"<div>\u0000 \u0000 <p>The importance of protein kinase B (AKT) in tumorigenesis and development is well established, but its potential regulation of metabolic reprogramming via phosphorylation of the hexokinase (HK) isozymes remains unclear. There are two HK family members (HK1/2) and three AKT family members (AKT1/2/3), with varied distribution of AKTs exhibiting distinct functions in different tissues and cell types. Although AKT is known to phosphorylate HK2 at threonine 473, AKT-mediated phosphorylation of HK1 has not been reported. We examined direct binding and phosphorylation of HK1/2 by AKT1 and identified the phosphorylation modification sites using coimmunoprecipitation, glutathione pull-down, western blotting, and in vitro kinase assays. Regulation of HK activity through phosphorylation by AKT1 was also examined. Uptake of 2-[1,2-<sup>3</sup>H]-deoxyglucose and production of lactate were investigated to determine whether AKT1 regulates glucose metabolism by phosphorylating HK1/2. Functional assays, immunohistochemistry, and tumor experiments in mice were performed to investigate whether AKT1-mediated regulation of tumor development is dependent on its kinase activity and/or the involvement of HK1/2. AKT interacted with and phosphorylated HK1 and HK2. Serine phosphorylation significantly increased AKT kinase activity, thereby enhancing glycolysis. Mechanistically, the phosphorylation of HK1 at serine 178 (S178) by AKT significantly decreased the Km and enhanced the Vmax by interfering with the formation of HK1 dimers. Mutations in the AKT phosphorylation sites of HK1 or HK2 significantly abrogated the stimulatory characteristics of AKT on glycolysis, tumorigenesis, and cell migration, invasion, proliferation, and metastasis. HK1-S178 phosphorylation levels were significantly correlated with the occurrence and metastasis of different types of clinical tumors. We conclude that AKT not only regulates tumor glucose metabolism by directly phosphorylating HK1 and HK2, but also plays important roles in tumor progression, proliferation, and migration.</p></div>","PeriodicalId":15219,"journal":{"name":"Journal of cellular biochemistry","volume":"125 8","pages":""},"PeriodicalIF":3.0,"publicationDate":"2024-06-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141300756","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
The basement membrane regulates the cellular localization and the cytoplasmic interactome of Yes-Associated Protein (YAP) in mammary epithelial cells 基底膜调节乳腺上皮细胞中Yes-Associated蛋白(YAP)的细胞定位和细胞质相互作用组。
IF 3 3区 生物学
Journal of cellular biochemistry Pub Date : 2024-05-23 DOI: 10.1002/jcb.30606
Antonio Carlos Manucci, Ana Paula Zen Petisco Fiore, Giovani Luiz Genesi, Alexandre Bruni-Cardoso
{"title":"The basement membrane regulates the cellular localization and the cytoplasmic interactome of Yes-Associated Protein (YAP) in mammary epithelial cells","authors":"Antonio Carlos Manucci,&nbsp;Ana Paula Zen Petisco Fiore,&nbsp;Giovani Luiz Genesi,&nbsp;Alexandre Bruni-Cardoso","doi":"10.1002/jcb.30606","DOIUrl":"10.1002/jcb.30606","url":null,"abstract":"<p>The Hippo pathway, a signaling cascade involved in the regulation of organ size and several other processes, acts as a conduit between extracellular matrix (ECM) cues and cellular responses. We asked whether the basement membrane (BM), a specialized ECM component known to induce quiescence and differentiation in mammary epithelial cells, would regulate the localization, activity, and interactome of YAP, a Hippo pathway effector. To address this question, we used a broad range of experimental approaches, including 2D and 3D cultures of both mouse and human mammary epithelial cells, as well as the developing mouse mammary gland. In contrast to malignant cells, nontumoral cells cultured with a reconstituted BM (rBM) displayed higher concentrations of YAP in the cytoplasm. Incidentally, when in the nucleus of rBM-treated cells, YAP resided preferentially at the nuclear periphery. In agreement with our cell culture experiments, YAP exhibited cytoplasmic predominance in ductal cells of developing mammary epithelia, where a denser BM is found. Conversely, terminal end bud (TEB) cells with a thinner BM displayed higher nucleus-to-cytoplasm ratios of YAP. Bioinformatic analysis revealed that genes regulated by YAP were overrepresented in the transcriptomes of microdissected TEBs. Consistently, mouse epithelial cells exposed to the rBM expressed lower levels of YAP-regulated genes, although the protein level of YAP and Hippo components were slightly altered by the treatment. Mass spectrometry analysis identified a differential set of proteins interacting with YAP in cytoplasmic fractions of mouse epithelial cells in the absence or presence of rBM. In untreated cells, YAP interactants were enriched in processes related to ubiquitin-mediated proteolysis, whereas in cells exposed to rBM YAP interactants were mainly key proteins related to amino acid, amino sugar, and carbohydrate metabolism. Collectively, we unraveled that the BM induces YAP translocation or retention in the cytoplasm of nontumoral epithelial cells and that in the cytoplasm YAP seems to undertake novel functions in metabolic pathways.</p>","PeriodicalId":15219,"journal":{"name":"Journal of cellular biochemistry","volume":"125 7","pages":""},"PeriodicalIF":3.0,"publicationDate":"2024-05-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141081338","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Single-cell RNA analysis of chromodomain-encoding genes in mesenchymal stromal cells of the mouse dental pulp 小鼠牙髓间充质基质细胞染色体编码基因的单细胞 RNA 分析。
IF 3 3区 生物学
Journal of cellular biochemistry Pub Date : 2024-05-23 DOI: 10.1002/jcb.30608
Timothy James Becker, Badam Enkhmandakh, Dashzeveg Bayarsaihan
{"title":"Single-cell RNA analysis of chromodomain-encoding genes in mesenchymal stromal cells of the mouse dental pulp","authors":"Timothy James Becker,&nbsp;Badam Enkhmandakh,&nbsp;Dashzeveg Bayarsaihan","doi":"10.1002/jcb.30608","DOIUrl":"10.1002/jcb.30608","url":null,"abstract":"<p>The chromodomain helicase DNA-binding (CHD) and chromobox (CBX) families of proteins play crucial roles in cell fate decisions, differentiation, and cell proliferation in a broad variety of tissues and cell types. CHD proteins are ATP-dependent epigenetic enzymes actively engaged in transcriptional regulation, DNA replication, and DNA damage repair, whereas CBX proteins are transcriptional repressors mainly involved in the formation of heterochromatin. The pleiotropic effects of CHD and CBX proteins are largely dependent on their versatility to interact with other key components of the epigenetic and transcriptional machinery. Although the function and regulatory modes of CHD and CBX factors are well established in many cell types, little is known about their roles during osteogenic differentiation. A single-cell RNA-sequencing analysis of the mouse incisor dental pulp revealed distinct spatiotemporal expression patterns of CHD- and CBX-encoding genes within different clusters of mesenchymal stromal cells (MSCs) representing various stages of osteogenic differentiation. Additionally, genes encoding interaction partners of CHD and CBX proteins, such as subunits of the trithorax-COMPASS and polycomb chromatin remodeling complexes, exhibited differential co-expression behaviors within MSC subpopulations. Thus, CHD- and CBX-encoding genes show partially overlapping but distinct expression patterns in MSCs, suggesting their differential roles in osteogenic cell fate decisions.</p>","PeriodicalId":15219,"journal":{"name":"Journal of cellular biochemistry","volume":"126 1","pages":""},"PeriodicalIF":3.0,"publicationDate":"2024-05-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141081335","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Nucleoporin Nup98 is an essential factor for ipo4 dependent protein import 核orin Nup98是依赖于ipo4的蛋白质导入的重要因子。
IF 3 3区 生物学
Journal of cellular biochemistry Pub Date : 2024-05-23 DOI: 10.1002/jcb.30573
Yingying Guo, Tao Tao, Ting Wu, Jingjing Hou, Wenbo Lin
{"title":"Nucleoporin Nup98 is an essential factor for ipo4 dependent protein import","authors":"Yingying Guo,&nbsp;Tao Tao,&nbsp;Ting Wu,&nbsp;Jingjing Hou,&nbsp;Wenbo Lin","doi":"10.1002/jcb.30573","DOIUrl":"10.1002/jcb.30573","url":null,"abstract":"<p>Nucleocytoplasmic transport of macromolecules is essential in eukaryotic cells. In this process, the karyopherins play a central role when they transport cargoes across the nuclear pore complex. Importin 4 belongs to the karyopherin β family. Many studies have focused on finding substrates for importin 4, but no direct mechanism studies of its precise transport function have been reported. Therefore, this paper mainly aimed to study the mechanism of nucleoporins in mediating nuclear import and export of importin 4. To address this question, we constructed shRNAs targeting Nup358, Nup153, Nup98, and Nup50. We found that depletion of Nup98 resulted in a shift in the subcellular localization of importin 4 from the cytoplasm to the nucleus. Mutational analysis demonstrated that Nup98 physically and functionally interacts with importin 4 through its N-terminal phenylalanine-glycine (FG) repeat region. Mutation of nine of these FG motifs to SG motifs significantly attenuated the binding of Nup98 to importin 4, and we further confirmed the essential role of the six FG motifs in amino acids 121–360 of Nup98 in binding with importin 4. In vitro transport assay also confirmed that VDR, the substrate of importin 4, could not be transported into the nucleus after Nup98 knockdown. Overall, our results showed that Nup98 is required for efficient importin 4-mediated transport. This is the first study to reveal the mechanism of importin 4 in transporting substrates into the nucleus.</p>","PeriodicalId":15219,"journal":{"name":"Journal of cellular biochemistry","volume":"125 7","pages":""},"PeriodicalIF":3.0,"publicationDate":"2024-05-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141081363","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
RETRACTION: “Okadaic acid promotes epithelial-mesenchymal transition of hepatocellular carcinoma cells by inhibiting protein phosphatase 2A” 返回:"冈田酸通过抑制蛋白磷酸酶 2A 促进肝癌细胞的上皮-间质转化"。
IF 3 3区 生物学
Journal of cellular biochemistry Pub Date : 2024-05-22 DOI: 10.1002/jcb.30607
{"title":"RETRACTION: “Okadaic acid promotes epithelial-mesenchymal transition of hepatocellular carcinoma cells by inhibiting protein phosphatase 2A”","authors":"","doi":"10.1002/jcb.30607","DOIUrl":"10.1002/jcb.30607","url":null,"abstract":"<p><b>RETRACTION:</b> J. Kong, D. Li, S. Zhang, H. Zhang, Y. Fu, B. Qian, C. Bei, S. Tan, X. Zhu, “Okadaic acid promotes epithelial-mesenchymal transition of hepatocellular carcinoma cells by inhibiting protein phosphatase 2A,” <i>Journal of Cellular Biochemistry</i> 122, no. 9 (2021): 993-1002, https://doi.org/10.1002/jcb.29629</p><p>The above article, published online on 6 January 2020 in Wiley Online Library (wileyonlinelibrary.com) has been retracted by agreement between the authors; the journal's Editor in Chief, Christian Behl; and Wiley Periodicals LLC.</p><p>The retraction has been agreed following an investigation based on allegations raised by third parties. During the investigation, several flaws and inconsistencies were found within the provided data. The authors admitted substantial mistakes during figure compilation for this manuscript. Thus, the conclusions of this article are considered invalid by the editors.</p>","PeriodicalId":15219,"journal":{"name":"Journal of cellular biochemistry","volume":"125 7","pages":""},"PeriodicalIF":3.0,"publicationDate":"2024-05-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/jcb.30607","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141075970","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Perilipins: A family of five fat-droplet storing proteins that play a significant role in fat homeostasis Perilipins:由五种脂肪滴储存蛋白组成的家族,在脂肪平衡中发挥着重要作用。
IF 4 3区 生物学
Journal of cellular biochemistry Pub Date : 2024-05-15 DOI: 10.1002/jcb.30579
Preethi Chandrasekaran, Sabine Weiskirchen, Ralf Weiskirchen
{"title":"Perilipins: A family of five fat-droplet storing proteins that play a significant role in fat homeostasis","authors":"Preethi Chandrasekaran,&nbsp;Sabine Weiskirchen,&nbsp;Ralf Weiskirchen","doi":"10.1002/jcb.30579","DOIUrl":"10.1002/jcb.30579","url":null,"abstract":"<p>Lipid droplets are organelles with unique spherical structures. They consist of a hydrophobic neutral lipid core that varies depending on the cell type and tissue. These droplets are surrounded by phospholipid monolayers, along with heterogeneous proteins responsible for neutral lipid synthesis and metabolism. Additionally, there are specialized lipid droplet-associated surface proteins. Recent evidence suggests that proteins from the perilipin family (PLIN) are associated with the surface of lipid droplets and are involved in their formation. These proteins have specific roles in hepatic lipid droplet metabolism, such as protecting the lipid droplets from lipase action and maintaining a balance between lipid storage and utilization in specific cells. Metabolic dysfunction-associated steatotic liver disease (MASLD) is characterized by the accumulation of lipid droplets in more than 5% of the hepatocytes. This accumulation can progress into metabolic dysfunction-associated steatohepatitis, fibrosis, cirrhosis, and hepatocellular carcinoma. The accumulation of hepatic lipid droplets in the liver is associated with the progression of MASLD and other diseases such as sarcopenic obesity. Therefore, it is crucial to understand the role of perilipins in this accumulation, as these proteins are key targets for developing novel therapeutic strategies. This comprehensive review aims to summarize the structure and characteristics of PLIN proteins, as well as their pathogenic role in the development of hepatic steatosis and fatty liver diseases.</p>","PeriodicalId":15219,"journal":{"name":"Journal of cellular biochemistry","volume":"125 6","pages":""},"PeriodicalIF":4.0,"publicationDate":"2024-05-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/jcb.30579","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140922327","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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