Acta biochimica et biophysica Sinica最新文献

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NLRP3 inflammasome-mediated disruption of mitochondrial homeostasis in alveolar macrophages contributes to ozone-induced acute lung inflammatory injury. NLRP3炎症体介导的肺泡巨噬细胞线粒体平衡破坏是臭氧诱发急性肺部炎症损伤的原因之一。
IF 3.3 2区 生物学
Acta biochimica et biophysica Sinica Pub Date : 2024-10-17 DOI: 10.3724/abbs.2024171
Xinyi Miao, Xinling Li, Pengwei Ma, Mengyuan Li, Yuting Jiang, Pengpeng Wang, Xiaolei Zhou, Ling Wang, Pingping Shang, Qiao Zhang, Feifei Feng
{"title":"NLRP3 inflammasome-mediated disruption of mitochondrial homeostasis in alveolar macrophages contributes to ozone-induced acute lung inflammatory injury.","authors":"Xinyi Miao, Xinling Li, Pengwei Ma, Mengyuan Li, Yuting Jiang, Pengpeng Wang, Xiaolei Zhou, Ling Wang, Pingping Shang, Qiao Zhang, Feifei Feng","doi":"10.3724/abbs.2024171","DOIUrl":"https://doi.org/10.3724/abbs.2024171","url":null,"abstract":"<p><p>Ozone (O <sub>3</sub>), a prevalent atmospheric pollutant, can induce lung injury. However, the molecular mechanisms of O <sub>3</sub>-induced acute lung inflammatory injury remain unclear. In this study, we investigate the abnormal changes in and molecular mechanism of mitochondrial homeostasis in alveolar macrophages (AMs) in O <sub>3</sub>-induced acute lung inflammatory injury mice. Mitochondria and mitochondrial reactive oxygen species (mtROS) are labeled with Mito-Tracker® Deep Red and MitoSOX Red, respectively. Mitochondrial DNA (mtDNA) in AMs from the bronchoalveolar lavage fluid (BALF) is detected via real-time PCR, and the expressions of mitochondrial fusion/fission-related and biogenesis-related proteins in AMs are determined via immunofluorescence staining. Our data show that in O <sub>3</sub>-induced acute lung inflammatory injury mice, the number of AMs and the protein expression of the NLRP3 inflammasome complex in the lung tissue are increased. In AMs from O <sub>3</sub>-exposed mice, the number of mitochondria, mtROS, and fission-related protein DRP1 are increased, but the levels of Na <sup>+</sup>-K <sup>+</sup>-ATPase, fusion-related protein OPA1, biogenesis-related protein NRF1 and mtDNA are significantly decreased. Compared with that in O <sub>3</sub>-exposed WT mice, lung inflammation is attenuated, especially the indicators of mitochondrial homeostatic imbalance in AMs, which are alleviated in NLRP3 <sup>‒/‒</sup> and Caspase-1 <sup>‒/‒</sup> mice after O <sub>3</sub> exposure. These findings indicate that the NLRP3 inflammasome-mediated imbalance in mitochondrial homeostasis in AMs contributes to O <sub>3</sub>-induced acute lung inflammatory injury. This study may provide a new target for the prevention of lung inflammation induced by O <sub>3</sub>.</p>","PeriodicalId":6978,"journal":{"name":"Acta biochimica et biophysica Sinica","volume":null,"pages":null},"PeriodicalIF":3.3,"publicationDate":"2024-10-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142455465","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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
G6PC3 is involved in spermatogenesis by maintaining meiotic sex chromosome inactivation. G6PC3 通过维持减数分裂性染色体失活参与精子发生。
IF 3.3 2区 生物学
Acta biochimica et biophysica Sinica Pub Date : 2024-10-17 DOI: 10.3724/abbs.2024172
Yuming Cao, Shengnan Wang, Liyang Li, Wenwen Li, Yan Liang, Fei Ao, Zexiao Wei, Li Wang
{"title":"G6PC3 is involved in spermatogenesis by maintaining meiotic sex chromosome inactivation.","authors":"Yuming Cao, Shengnan Wang, Liyang Li, Wenwen Li, Yan Liang, Fei Ao, Zexiao Wei, Li Wang","doi":"10.3724/abbs.2024172","DOIUrl":"https://doi.org/10.3724/abbs.2024172","url":null,"abstract":"<p><p>Meiosis, a process unique to germ cells, involves formation and repair of double-stranded nicks in DNA, pairing and segregation of homologous chromosomes, which ultimately achieves recombination of homologous chromosomes. Genetic abnormalities resulted from defects in meiosis are leading causes of infertility in humans. Meiotic sex chromosome inactivation (MSCI) plays a crucial role in the development of male germ cells in mammals, yet its underlying mechanisms remain poorly understood. In this study, we illustrate the predominant presence of a protein known as glucose 6 phosphatase catalyzed 3 (G6PC3) in pachytene spermatocytes, with a high concentration in the sex body (XY body), suggesting its significant involvement in male germ cell development. By employing CRISPR-Cas9 technology, we generate mice deficient in the <i>G6pc3</i> gene, resulting in complete meiotic arrest at the pachytene stage in spermatocytes and are completely sterile. Additionally, we observe abnormal XY body formation and impaired MSCI in <i>G6pc3-</i>knockout spermatocytes. These findings underscore <i>G6pc3</i> as a new essential regulator that is essential for meiotic progression. G6PC3 is involved in spermatocyte during male spermatogenesis development by the maintenance of meiosis chromosome silencing.</p>","PeriodicalId":6978,"journal":{"name":"Acta biochimica et biophysica Sinica","volume":null,"pages":null},"PeriodicalIF":3.3,"publicationDate":"2024-10-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142455461","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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
NCAM and attached polysialic acid affect behaviors of breast epithelial cells through differential signaling pathways. NCAM 和附着的多聚戊二酸通过不同的信号通路影响乳腺上皮细胞的行为。
IF 3.3 2区 生物学
Acta biochimica et biophysica Sinica Pub Date : 2024-10-17 DOI: 10.3724/abbs.2024176
Yurong Wu, Juhong Yang, Xin Wang, Jia Guo, Zengqi Tan, Feng Guan, Lin Cao
{"title":"NCAM and attached polysialic acid affect behaviors of breast epithelial cells through differential signaling pathways.","authors":"Yurong Wu, Juhong Yang, Xin Wang, Jia Guo, Zengqi Tan, Feng Guan, Lin Cao","doi":"10.3724/abbs.2024176","DOIUrl":"https://doi.org/10.3724/abbs.2024176","url":null,"abstract":"<p><p>Neural cell adhesion molecule (NCAM), a common mammalian cell surface glycoprotein, is the major substrate of polysialic acid (polySia). Polysialylated NCAM occurs in many types of cancer, but rarely in normal adult tissues. The functional role of NCAM hypersialylation in the epithelial-mesenchymal transition (EMT) process remains unclear. The present study indicates that NCAM and attached polysialic acid affect behaviors of breast epithelial cells through differential signaling pathways. NCAM and polysialylated NCAM are aberrantly regulated in breast cancer cells. They are both upregulated in normal breast epithelial cells undergoing EMT. Western blot analysis demonstrates that NCAM-140 overexpression induces EMT in breast epithelial cells and promotes cell proliferation and migration through activation of the β-catenin/slug signaling pathway. Modification of polySia attached to NCAM modulates cell adhesion and promotes cell motility through activation of the EGFR/STAT3 pathway. These observations contribute to clarifying the molecular mechanisms by which polysialic acid and its major substrate, NCAM, modulate cell behaviors, and highlight the significance of increased polysialylated expression on NCAM during EMT and tumor development.</p>","PeriodicalId":6978,"journal":{"name":"Acta biochimica et biophysica Sinica","volume":null,"pages":null},"PeriodicalIF":3.3,"publicationDate":"2024-10-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142455463","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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
Nicotinamide mononucleotide ameliorates ionizing radiation-induced spermatogenic dysfunction in mice by modulating the glycolytic pathway. 烟酰胺单核苷酸通过调节糖酵解途径改善电离辐射诱导的小鼠生精功能障碍
IF 3.3 2区 生物学
Acta biochimica et biophysica Sinica Pub Date : 2024-10-17 DOI: 10.3724/abbs.2024167
Wenqin Yang, Weihua Nong, Ke Liu, Xiaocan Lei, Xiaping Chen, Pei Jiang, Jiayi Tang, Cong Hu, Zecheng Hu, Meixiang Li
{"title":"Nicotinamide mononucleotide ameliorates ionizing radiation-induced spermatogenic dysfunction in mice by modulating the glycolytic pathway.","authors":"Wenqin Yang, Weihua Nong, Ke Liu, Xiaocan Lei, Xiaping Chen, Pei Jiang, Jiayi Tang, Cong Hu, Zecheng Hu, Meixiang Li","doi":"10.3724/abbs.2024167","DOIUrl":"https://doi.org/10.3724/abbs.2024167","url":null,"abstract":"<p><p>Radiotherapy, a common cancer treatment, leads to infertility in male cancer survivors, particularly young and middle-aged patients. Nicotinamide mononucleotide (NMN), a precursor of nicotinamide adenine dinucleotide (NAD <sup>+</sup>), plays crucial roles in energy metabolism, DNA repair, and gene expression. The purpose of this study is to investigate the protective effects and underlying mechanisms of NMN against ionizing radiation (IR)-induced testicular injury and spermatogenic dysfunction in an adult male mouse model. To assess the effects of NMN, single whole-body γ-ray irradiation is used to induce testicular injury and spermatogenic dysfunction in adult male mice. NMN is orally administered at 500 mg/kg before and after IR exposure. The structural and cellular damage to the testes caused by 5 Gy γ-ray irradiation, as well as the protective effect of NMN on testicular spermatogenic dysfunction, are evaluated. The serum hormone testosterone, LH, and FSH levels, as well as testicular NAD <sup>+</sup>, lactate, and pyruvate levels, are detected. Furthermore, the expressions of the apoptosis-related genes <i>Bcl-2</i>, <i>Bax</i>, and <i>Caspase-3</i> and the rate-limiting enzymes HK2, PKM2, and LDHA, which are potentially associated with the mechanism of injury, are examined. The results demonstrate that 5 Gy γ-ray irradiation exposure causes a decrease in the serum testosterone, LH, and FSH levels in adult male mice, as well as in the testicular NAD <sup>+</sup>, lactate, and pyruvate levels, and causes damage to the testicular structure and cells. Morphometric analysis reveal a decrease in the testis mass, seminiferous tubule diameter, and height of the germinal epithelium. The sperm quantity, motility, and testicular volume are reduced in the 5 Gy group but are restored by NMN supplementation. NMN intervention downregulates the expressions of proapoptotic genes ( <i>Bax</i> and <i>Caspase-3</i>) and upregulates the expression of an antiapoptotic gene ( <i>Bcl</i>- <i>2</i>). Sertoli cells marker genes ( <i>WT-1</i>, <i>GATA-4</i>, <i>SOX9</i>, and <i>vimentin</i>) and glycolysis rate-limiting enzyme-encoding genes ( <i>HK2</i>, <i>PKM2</i>, <i>LDHA</i>) are significantly upregulated. In summary, NMN has a positive regulatory effect on testicular spermatogenic dysfunction in male mice induced by ionizing radiation. This positive effect is likely achieved by promoting the proliferation of spermatogenic cells and activating glycolytic pathways. These findings suggest that NMN supplementation may be a potential protective strategy to prevent reproductive damage to male subjects from ionizing radiation.</p>","PeriodicalId":6978,"journal":{"name":"Acta biochimica et biophysica Sinica","volume":null,"pages":null},"PeriodicalIF":3.3,"publicationDate":"2024-10-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142455464","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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
RHBDF1 promotes PERK expression through the JNK/FoxO3 pathway in breast cancer cells. RHBDF1 通过 JNK/FoxO3 通路促进乳腺癌细胞中 PERK 的表达。
IF 3.3 2区 生物学
Acta biochimica et biophysica Sinica Pub Date : 2024-10-17 DOI: 10.3724/abbs.2024163
SungJu Ryu, Hui Long, Xiaojing Quan, UnChol Kim, Wenwen Zhao, Yuanyuan Song, Luyuan Li, Zhisong Zhang
{"title":"RHBDF1 promotes PERK expression through the JNK/FoxO3 pathway in breast cancer cells.","authors":"SungJu Ryu, Hui Long, Xiaojing Quan, UnChol Kim, Wenwen Zhao, Yuanyuan Song, Luyuan Li, Zhisong Zhang","doi":"10.3724/abbs.2024163","DOIUrl":"https://doi.org/10.3724/abbs.2024163","url":null,"abstract":"<p><p>Human rhomboid family-1 ( <i>RHBDF1</i>) gene is recognized as an oncogene involved in breast cancer development. Previous studies have indicated that RHBDF1 contributes significantly to endoplasmic reticulum (ER) protein homeostasis by stabilizing the binding immunoglobulin protein (BiP) and promoting the unfolded protein response (UPR). Here, we report a relationship between RHBDF1 and the ER stress sensors PERK, IRE1, and ATF6. We show that RHBDF1 deficiency in breast cancer cells results in decreased levels of PERK, pPERK, and peIF2α. These protein levels can be restored in RHBDF1-deficient breast cancer cells by artificial overexpression of RHBDF1 but not IRE1 or ATF6. Additionally, we show that the transcription factor FoxO3 is essential for the RHBDF1-mediated production of PERK. Subsequent analysis reveals that RHBDF1 activates JNK, which causes FoxO3 to translocate into the cell nucleus. These findings demonstrate that RHBDF1 supports the UPR by upregulating the PERK/peIF2α pathway via the JNK/FoxO3 axis and that the functions of RHBDF1 are essential for preserving the homeostasis of ER proteins.</p>","PeriodicalId":6978,"journal":{"name":"Acta biochimica et biophysica Sinica","volume":null,"pages":null},"PeriodicalIF":3.3,"publicationDate":"2024-10-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142455467","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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
Berberine alters the gut microbiota metabolism and impairs spermatogenesis. 小檗碱会改变肠道微生物群的新陈代谢并损害精子生成。
IF 3.3 2区 生物学
Acta biochimica et biophysica Sinica Pub Date : 2024-10-17 DOI: 10.3724/abbs.2024174
Wei Qu, Yumin Xu, Jing Yang, Hanqing Shi, Junli Wang, Xinnai Yu, Jiemin Chen, Binyi Wang, Deqing Zhuoga, Mengcheng Luo, Rong Liu
{"title":"Berberine alters the gut microbiota metabolism and impairs spermatogenesis.","authors":"Wei Qu, Yumin Xu, Jing Yang, Hanqing Shi, Junli Wang, Xinnai Yu, Jiemin Chen, Binyi Wang, Deqing Zhuoga, Mengcheng Luo, Rong Liu","doi":"10.3724/abbs.2024174","DOIUrl":"https://doi.org/10.3724/abbs.2024174","url":null,"abstract":"<p><p>Berberine (BBR) is used to treat diarrhea clinically. However, its reproductive toxicity is unclear. This study aims to investigate the impact of BBR on the male reproductive system. Intragastric BBR administration for 14 consecutive days results in a significant decrease in the serum testosterone concentration, epididymal sperm concentration, mating rate and fecundity of male mice. Testicular treatment with testosterone propionate (TP) partially reverses the damage caused by BBR to the male reproductive system. Mechanistically, the decrease in Muribaculaceae abundance in the gut microbiota of mice is the principal cause of the BBR-induced decrease in the sperm concentration. Both fecal microbiota transplantation (FMT) and polyethylene glycol (PEG) treatment demonstrate that Muribaculaceae is necessary for spermatogenesis. The intragastric administration of <i>Muribaculaceae intestinale</i> to BBR-treated mice restores the sperm concentration and testosterone levels. Metabolomic analysis reveals that BBR affects arginine and proline metabolism, of which ornithine level is downregulated. Combined analysis via 16S rRNA metagenomics sequencing and metabolomics shows that Muribaculaceae regulates ornithine level. The transcriptomic results of the testes indicate that the expressions of genes related to the low-density lipoprotein receptor (LDLR)-mediated testosterone synthesis pathway decrease after BBR administration. The transcriptional activity of the <i>Ldlr</i> gene in TM3 cells is increased with increased ornithine supplementation in the culture media, leading to increased testosterone synthesis. Overall, this study reveals an association between a BBR-induced decrease in Muribaculaceae abundance and defective spermatogenesis, providing a prospective therapeutic approach for addressing infertility-related decreases in serum testosterone triggered by changes in the gut microbiota composition.</p>","PeriodicalId":6978,"journal":{"name":"Acta biochimica et biophysica Sinica","volume":null,"pages":null},"PeriodicalIF":3.3,"publicationDate":"2024-10-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142455445","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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
IL15RA-STAT3-GPX4/ACSL3 signaling leads to ferroptosis resistance in pancreatic cancer. IL15RA-STAT3-GPX4/ACSL3信号转导导致胰腺癌的铁蛋白沉积抵抗。
IF 3.3 2区 生物学
Acta biochimica et biophysica Sinica Pub Date : 2024-10-12 DOI: 10.3724/abbs.2024153
Di Wu, Zhiliang Wang, Yue Zhang, Yang Yang, Yue Yang, Guangchen Zu, Xianjun Yu, Weibo Chen, Yi Qin, Xiaowu Xu, Xuemin Chen
{"title":"IL15RA-STAT3-GPX4/ACSL3 signaling leads to ferroptosis resistance in pancreatic cancer.","authors":"Di Wu, Zhiliang Wang, Yue Zhang, Yang Yang, Yue Yang, Guangchen Zu, Xianjun Yu, Weibo Chen, Yi Qin, Xiaowu Xu, Xuemin Chen","doi":"10.3724/abbs.2024153","DOIUrl":"https://doi.org/10.3724/abbs.2024153","url":null,"abstract":"<p><p>Pancreatic ductal adenocarcinoma (PDAC) is a highly malignant disease with a poor prognosis, and the lack of effective treatment methods accounts for its high mortality. Pancreatic stellate cells (PSCs) in the tumor microenvironment play an important role in the development of PDAC. Previous studies have reported that patients with PDAC are more vulnerable to ferroptosis inducers. To investigate the relationship between PSCs and pancreatic cancer cells, a coculture system is used to further reveal the influence of PSCs on ferroptosis resistance in PDAC using many <i>in vitro</i> and <i>in vivo</i> experiments. Our results show that PSCs promote ferroptosis resistance in pancreatic cancer cells. We further demonstrate that IL15 secretion by PSCs activates the IL15RA-STAT3-GPX4/ACSL3 axis. The simultaneous upregulation of GPX4 and ACSL3 prevents lipid peroxidation and ultimately protects pancreatic cancer cells from ferroptosis both <i>in vitro</i> and <i>in vivo</i>. This study demonstrates that PSCs protect pancreatic cancer cells in a paracrine manner and may indicate a novel strategy for the treatment of PDAC.</p>","PeriodicalId":6978,"journal":{"name":"Acta biochimica et biophysica Sinica","volume":null,"pages":null},"PeriodicalIF":3.3,"publicationDate":"2024-10-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142455462","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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
Soluble (pro)renin receptor as a novel laboratory biomarker of atherosclerosis. 可溶性(原)肾素受体作为动脉粥样硬化的新型实验室生物标志物。
IF 3.3 2区 生物学
Acta biochimica et biophysica Sinica Pub Date : 2024-10-11 DOI: 10.3724/abbs.2024150
Chunju Liu, Shanshan Song, Xiaoli Yi, Huiru Yang, Jianhua Xiong, Mulan Wang, Wenting Tan, Mengzhi Zhu, Lixiang Zheng, Jun Yu, Chuanming Xu
{"title":"Soluble (pro)renin receptor as a novel laboratory biomarker of atherosclerosis.","authors":"Chunju Liu, Shanshan Song, Xiaoli Yi, Huiru Yang, Jianhua Xiong, Mulan Wang, Wenting Tan, Mengzhi Zhu, Lixiang Zheng, Jun Yu, Chuanming Xu","doi":"10.3724/abbs.2024150","DOIUrl":"https://doi.org/10.3724/abbs.2024150","url":null,"abstract":"","PeriodicalId":6978,"journal":{"name":"Acta biochimica et biophysica Sinica","volume":null,"pages":null},"PeriodicalIF":3.3,"publicationDate":"2024-10-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142455468","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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
Phillyrin prevents sepsis-induced acute lung injury through inhibiting the NLRP3/caspase-1/GSDMD-dependent pyroptosis signaling pathway. Phillyrin通过抑制NLRP3/caspase-1/GSDMD依赖性热蛋白沉积信号通路,预防脓毒症诱发的急性肺损伤。
IF 3.3 2区 生物学
Acta biochimica et biophysica Sinica Pub Date : 2024-10-11 DOI: 10.3724/abbs.2024161
Chen Ji, Xiaoyan Hao, Zhiyi Li, Jiaxing Liu, Hanyu Yan, Ketao Ma, Ling Li, Liang Zhang
{"title":"Phillyrin prevents sepsis-induced acute lung injury through inhibiting the NLRP3/caspase-1/GSDMD-dependent pyroptosis signaling pathway.","authors":"Chen Ji, Xiaoyan Hao, Zhiyi Li, Jiaxing Liu, Hanyu Yan, Ketao Ma, Ling Li, Liang Zhang","doi":"10.3724/abbs.2024161","DOIUrl":"https://doi.org/10.3724/abbs.2024161","url":null,"abstract":"<p><p>Acute lung injury (ALI) is a severe pulmonary disorder of sepsis with high clinical incidence and mortality. Nucleotide-binding oligomerization domain-like receptor family pyrin domain containing 3 (NLRP3)-cysteinyl aspartate specific proteinase 1-gasdermin D (GSDMD)-dependent pyroptosis of alveolar epithelial cells (AECs) has emerged as a crucial contributor to ALI during sepsis. Phillyrin (PHI), a natural lignan isolated from the traditional Chinese herbal medicine <i>Forsythia suspensa</i>, has been shown to have anti-inflammatory, antioxidant and antiviral properties. However, little is known about the protective role and potential mechanism of PHI in sepsis-induced ALI, and it is uncertain whether the protective effect of PHI in sepsis-induced ALI is connected to pyroptosis. This study aims to examine the preventive effects of PHI on sepsis-induced ALI via the inhibition of NLRP3/caspase-1/GSDMD-mediated pyroptosis in AECs. Our findings demonstrate that preadministration of PHI successfully reduces sepsis-induced pulmonary edema, systemic/pulmonary inflammation, and pulmonary histological damage in lung tissues, bronchoalveolar lavage fluid, and the serum of septic mice. Intriguingly, PHI preadministration suppresses sepsis-induced protein expressions of pyroptosis-specific markers, especially their active forms. <i>In vitro</i> assays show that PHI pretreatment also protects type II AECs (MLE-12) from lipopolysaccharide-induced pyroptosis by preventing the activation of the pyroptosis signaling pathway. The results from molecular docking and surface plasmon resonance reveal that PHI has a significant affinity for direct binding to the GSDMD protein, suggesting that GSDMD is a potential pharmacological target for PHI. In conclusion, PHI can prevent sepsis-triggered ALI by effectively suppressing the activation of the canonical pyroptosis signaling pathway and pyroptosis of AECs.</p>","PeriodicalId":6978,"journal":{"name":"Acta biochimica et biophysica Sinica","volume":null,"pages":null},"PeriodicalIF":3.3,"publicationDate":"2024-10-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142455466","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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
Collagen prolyl 4-hydroxylase subunit α member-induced head and neck squamous cell carcinoma aggressiveness is antagonized by LLGL2 via reduced expression of occludin. 胶原脯氨酰 4-羟化酶亚基 α 成员诱导的头颈部鳞状细胞癌侵袭性可通过减少闭塞素的表达被 LLGL2 拮抗。
IF 3.3 2区 生物学
Acta biochimica et biophysica Sinica Pub Date : 2024-10-11 DOI: 10.3724/abbs.2024140
Miao Xu, Run Shi, Jie Yang, Heng Chen, Shihua Liu, Shupei Yu, Sasa Li, Wenqiang He, Man-Sun Sy, Mingjian Lu, Huixia Zhang, Chaoyang Li
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