Applied Biochemistry and Biotechnology最新文献

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Long Noncoding RNA SNHG12 Regulates Ischemia/reperfusion (I/R)-mediated Acute Kidney Injury (AKI) Through miR-129-1-3p/Ubiquitin Specific Peptidase 25 axis. 长链非编码RNA SNHG12通过miR-129-1-3p/泛素特异性肽酶25轴调控缺血/再灌注(I/R)介导的急性肾损伤(AKI)。
IF 3.1 4区 生物学
Applied Biochemistry and Biotechnology Pub Date : 2025-01-16 DOI: 10.1007/s12010-024-05148-2
Peng Huang, Lingzhang Meng, Jun Pang, Haiting Huang, Jing Ma, Linlin He, Xu Lin
{"title":"Long Noncoding RNA SNHG12 Regulates Ischemia/reperfusion (I/R)-mediated Acute Kidney Injury (AKI) Through miR-129-1-3p/Ubiquitin Specific Peptidase 25 axis.","authors":"Peng Huang, Lingzhang Meng, Jun Pang, Haiting Huang, Jing Ma, Linlin He, Xu Lin","doi":"10.1007/s12010-024-05148-2","DOIUrl":"https://doi.org/10.1007/s12010-024-05148-2","url":null,"abstract":"<p><strong>Objective: </strong>A growing body of evidence suggests the involvement of long noncoding ribose nucleic acids (lncRNAs) in acute kidney injury (AKI). This study focused on the mechanistic role of lncRNA small nucleolar RNA host gene 12 (SNHG12) in ischemia/reperfusion (I/R)-mediated AKI. A model of hypoxia/reoxygenation (H/R) was created using human kidney cells (HK-2). Expression levels of SNHG12 and miR-129-1-3p mRNAs, and USP25 protein were determined through quantitative reverse transcription polymerase chain reaction (RT-qPCR) and Western blotting analyses, respectively. Furthermore, the relationship between SNHG12 and miR-129-1-3p, as well as miR-129-1-3p and Ubiquitin Specific Peptidase 25 (USP25), was investigated using dual-luciferase reporter gene, RNA pull-down, and immunoprecipitation assays. To further evaluate the role of SNHG12 in AKI, a mouse model was established to study the pathological changes in kidney tissues after SNHG12 knockdown. SNHG12 was upregulated in H/R-induced HK-2 cells and I/R-induced AKI mouse model. Conversely, the expression of miR-129-1-3p showed a significant downregulation. Through dual-luciferase assay and RNA pull-down analysis, it was demonstrated that SNHG12 interacted with miR-129-1-3p, and miR-129-1-3p acted as a negative regulator of USP25. Silencing SNHG12 attenuated the detrimental effect of H/R on HK-2 cells, which was counteracted by miR-129-1-3p antagomir. USP25 overexpression also reversed the effect of miR-129-1-3p on H/R-induced HK-2 cells. SNHG12 knockdown was further found to ameliorate I/R-induced renal injury, apoptosis, oxidative stress, and inflammation in AKI mouse model. SNHG12 was upregulated in I/R-induced AKI and its knockdown ameliorated AKI through the miR-129-1-3p/USP25 axis. SNHG12/miR-129-1-3p/USP25 axis serves as a potential therapeutic target for I/R-related renal injury.</p>","PeriodicalId":465,"journal":{"name":"Applied Biochemistry and Biotechnology","volume":" ","pages":""},"PeriodicalIF":3.1,"publicationDate":"2025-01-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142996680","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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
Nicotine Ameliorates α-Synuclein Preformed Fibril-Induced Behavioral Deficits and Pathological Features in Mice. 尼古丁改善小鼠α-突触核蛋白预形成原纤维诱导的行为缺陷和病理特征。
IF 3.1 4区 生物学
Applied Biochemistry and Biotechnology Pub Date : 2025-01-16 DOI: 10.1007/s12010-024-05086-z
Zhangqiong Huang, Yue Pan, Kaili Ma, Haiyu Luo, Qinglan Zong, Zhengcun Wu, Zhouhai Zhu, Ying Guan
{"title":"Nicotine Ameliorates α-Synuclein Preformed Fibril-Induced Behavioral Deficits and Pathological Features in Mice.","authors":"Zhangqiong Huang, Yue Pan, Kaili Ma, Haiyu Luo, Qinglan Zong, Zhengcun Wu, Zhouhai Zhu, Ying Guan","doi":"10.1007/s12010-024-05086-z","DOIUrl":"https://doi.org/10.1007/s12010-024-05086-z","url":null,"abstract":"<p><p>Epidemiologic study suggests that nicotine reduces the risk of Parkinson's disease (PD) and thus could serve as a potential treatment. In this study, we aimed to investigate the effect of nicotine on the behavioral phenotypes and pathological characteristics of mice induced by human alpha-synuclein preformed fibers (α-syn-PFF). Mice were injected with 5 µg of human α-syn-PFF in the hippocampus while administering nicotine-containing drinking water (200 µg/mL). After 1 month, the motor ability, mood, spatial learning, and memory ability of the PD phenotype-like model mice were detected using open field, rotarod, Y maze, and O maze tests. The expression of pathological α-syn and apoptotic proteins, as well as the number of glial and neural stem cells in the hippocampus of mice, was detected using western blot and immunofluorescence. The results demonstrated that nicotine significantly reduced pathological α-syn accumulation, α-syn serine 129 phosphorylation, and apoptosis induced by α-syn-PFF injection in the hippocampus of mice. Nicotine also inhibited the increase in the number of glia, microglia, and neuronal apoptotic cells, and it decreased the expression of PI3K and Akt while also exhibiting significant memory impairment, motor deficits, and anxiety-like behavior. In conclusion, our findings suggest that nicotine ameliorates behavioral deficits and pathological changes in mice by inhibiting human α-syn-PFF-induced neuroinflammation and apoptosis.</p>","PeriodicalId":465,"journal":{"name":"Applied Biochemistry and Biotechnology","volume":" ","pages":""},"PeriodicalIF":3.1,"publicationDate":"2025-01-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142997821","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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
13C-metabolic flux analysis of respiratory chain disrupted strain ΔndhF1 of Synechocystis sp. PCC 6803. 胞囊菌pcc6803呼吸链断裂菌株ΔndhF1的13c代谢通量分析
IF 3.1 4区 生物学
Applied Biochemistry and Biotechnology Pub Date : 2025-01-15 DOI: 10.1007/s12010-024-05138-4
Keisuke Wada, Yoshihiro Toya, Fumio Matsuda, Hiroshi Shimizu
{"title":"<sup>13</sup>C-metabolic flux analysis of respiratory chain disrupted strain ΔndhF1 of Synechocystis sp. PCC 6803.","authors":"Keisuke Wada, Yoshihiro Toya, Fumio Matsuda, Hiroshi Shimizu","doi":"10.1007/s12010-024-05138-4","DOIUrl":"https://doi.org/10.1007/s12010-024-05138-4","url":null,"abstract":"<p><p>Cyanobacteria are advantageous hosts for industrial applications toward achieving sustainable society due to their unique and superior properties such as atmospheric CO<sub>2</sub> fixation via photosynthesis. However, cyanobacterial productivities tend to be weak compared to heterotrophic microbes. To enhance them, it is necessary to understand the fundamental metabolic mechanisms unique to cyanobacteria. In cyanobacteria, NADPH and ATP regenerated by linear and cyclic electron transfers using light energy are consumed by CO<sub>2</sub> fixation in a central metabolic pathway. The previous study demonstrated that the strain deleted a part of respiratory chain complex (ΔndhF1) perturbed NADPH levels and photosynthetic activity in Synechocystis sp. PCC 6803. It is expected that disruption of ndhF1 would result in a decrease in the function of cyclic electron transfer, which controls the ATP/NAD(P)H production ratio properly. In this study, we evaluated the effects of ndhF1 deletion on central metabolism and photosynthesis by <sup>13</sup>C-metabolic flux analysis. As results of culturing the control and ΔndhF1 strains in a medium containing [1,2-<sup>13</sup>C] glucose and estimating the flux distribution, CO<sub>2</sub> fixation rate by RuBisCO was decreased to be less than half in the ΔndhF1 strain. In addition, the regeneration rate of NAD(P)H and ATP by the photosystem, which can be estimated from the flux distribution, also decreased to be less than half in the ΔndhF1 strain, whereas no significant difference was observed in ATP/NAD(P)H production ratio between the control and the ΔndhF1 strains. Our result suggests that the ratio of utilization of cyclic electron transfer is not reduced in the ΔndhF1 strain unexpectedly.</p>","PeriodicalId":465,"journal":{"name":"Applied Biochemistry and Biotechnology","volume":" ","pages":""},"PeriodicalIF":3.1,"publicationDate":"2025-01-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142982309","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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
CircZMYM2 Alleviates TGF-β1-Induced Proliferation, Migration and Activation of Fibroblasts via Targeting miR-199b-5p/KLF13 Axis. CircZMYM2通过靶向miR-199b-5p/KLF13轴缓解TGF-β1诱导的成纤维细胞增殖、迁移和活化
IF 3.1 4区 生物学
Applied Biochemistry and Biotechnology Pub Date : 2025-01-14 DOI: 10.1007/s12010-024-05168-y
Yu Han, Jun Zhao, Xiuge Liao, Ruifeng Wang, Lixia Dong
{"title":"CircZMYM2 Alleviates TGF-β1-Induced Proliferation, Migration and Activation of Fibroblasts via Targeting miR-199b-5p/KLF13 Axis.","authors":"Yu Han, Jun Zhao, Xiuge Liao, Ruifeng Wang, Lixia Dong","doi":"10.1007/s12010-024-05168-y","DOIUrl":"https://doi.org/10.1007/s12010-024-05168-y","url":null,"abstract":"<p><p>Dysregulated circular RNAs (circRNAs) has been revealed to be involved in pulmonary fibrosis progression. Herein, this study focused on exploring the function and mechanism of circRNA Zinc Finger MYM-Type Containing 2 (circZMYM2) on idiopathic pulmonary fibrosis (IPF) using transforming growth factor (TGF)-β1-stimulated fibroblasts. Human fibroblast cell lines IMR-90 and HFL1 were stimulated with TGF-β1 to mimic fibrosis condition in vitro. Levels of genes and proteins were detected by qRT-PCR and western blotting. Cell proliferation and migration were analyzed using cell counting kit-8 assay, 5-Ethynyl-2'-deoxyuridine (EdU) and wound healing assays. The fibrosis progression was determined by the change of E-cadherin, α-smooth muscle actin (α-SMA), collagen type I α 1 (COL1A1) and collagen type III α 1 (COL3A1). The interaction between miR-199b-5p and circZMYM2 or KLF13 (Kruppel Like Factor 13) was analyzed using dual-luciferase reporter, RIP and RNA-pull-down assays. CircZMYM2 was decreased in TGF-β1-induced IMR-90 and HFL1 fibroblasts. Functionally, re-expression of circZMYM2 in IMR-90 and HFL1 cells could attenuate TGF-β1-evoked proliferation, migration and fibrosis in cells. Mechanistically, the circZMYM2/miR-199b-5p/KLF13 constituted a competing endogenous RNA (ceRNA). TGF-β1 reduced KLF13 expression and increased miR-199b-5p expression in IMR-90 and HFL1 cells. Further rescue experiments suggested that miR-199b-5p up-regulation or KLF13 knockdown reversed the anti-fibrotic effects of circZMYM2; moreover, silencing of miR-199b-5p exhibited anti-fibrotic effects, which was counteracted by KLF13 knockdown. CircZMYM2 had an anti-fibrotic effect that could suppress fibroblast activation via miR-199b-5p/KLF13 axis, pointing a novel perspective into the potential action pattern of circ_0022383 in IPF.</p>","PeriodicalId":465,"journal":{"name":"Applied Biochemistry and Biotechnology","volume":" ","pages":""},"PeriodicalIF":3.1,"publicationDate":"2025-01-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142976776","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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
Study on the Synergistic Effect of Klotho and KRAS on Reducing Ferroptosis After Myocardial Infarction by Regulating RAP1/ERK Signaling Pathway. Klotho和KRAS通过调节RAP1/ERK信号通路减少心肌梗死后铁下垂的协同作用研究
IF 3.1 4区 生物学
Applied Biochemistry and Biotechnology Pub Date : 2025-01-14 DOI: 10.1007/s12010-024-05171-3
ChengZhe Cai, YiQin Wu, XiaoQian Feng, XianQu Ye, PingFang Liu, XiangJin Huang, ZhiJun Li, ZhuoFan Xu
{"title":"Study on the Synergistic Effect of Klotho and KRAS on Reducing Ferroptosis After Myocardial Infarction by Regulating RAP1/ERK Signaling Pathway.","authors":"ChengZhe Cai, YiQin Wu, XiaoQian Feng, XianQu Ye, PingFang Liu, XiangJin Huang, ZhiJun Li, ZhuoFan Xu","doi":"10.1007/s12010-024-05171-3","DOIUrl":"https://doi.org/10.1007/s12010-024-05171-3","url":null,"abstract":"<p><p>Myocardial infarction (MI) is a coronary artery-related disease that seriously threatens human life and is the leading cause of sudden death worldwide, where a lack of nutrients and oxygen leads to an inflammatory response and death of cardiomyocytes. Ferroptosis is a form of non-apoptotic cell death associated with metabolic dysfunction, resulting in abnormal breakdown of glutamine and iron-dependent accumulation of reactive oxygen species (ROS) during metabolism. However, the molecular mechanism of ferroptosis in the pathogenesis of MI and the function of Klotho and KRAS on ferroptosis during MI remain unclear. The MI rat model was established by LAD ligation with a 6-0 suture. H9c2 cells were placed in glucose-deficient DMEM (Thermo) and cultured in an anaerobic environment (1% CO<sub>2</sub> and 5% CO) to establish an in vitro OGD cell model. The damage to rat heart tissue was detected by HE staining, and Klotho and KRAS were determined by RT-qPCR, Western Blot, and IHC. TUNEL staining was used to determine apoptosis in rat heart tissue samples. The interaction between Klotho and KRAS was verified by co-immunoprecipitation and Western Blot. The cardiomyocyte activity was measured by CCK-8 assay. LDH, CK-MB, cTnT, and Fe<sup>2+</sup> markers were detected by the kits. For the assessment of ferroptosis, GSH and ROS in cardiomyocytes and serum were detected by kits, and PTSG was detected by Western Blot. IL-1β and IL-6 in cardiomyocytes and serum were determined by ELISA. Klotho was downregulated in MI. Downregulation of Klotho promoted myocardial injury; increased apoptosis of cardiomyocytes; promoted LDH, CK-MB, and cTnT concentrations; inhibited GSH; and promoted ROS levels, PTGS2 expression, and ferroptosis in rats. The same results were obtained in vitro. Klotho and KRAS had endogenous interactions. KRAS knockdown can reverse Klotho knockdown-mediated MI and ferroptosis. RAP1/ERK pathway was highly expressed in MI, and inhibiting RAP1/ERK pathway activation can reverse the promoting effect of overexpressed KRAS on MI progression and ferroptosis. Klotho interacts with KRAS and inhibits ferroptosis after MI by regulating the RAP1/ERK pathway.</p>","PeriodicalId":465,"journal":{"name":"Applied Biochemistry and Biotechnology","volume":" ","pages":""},"PeriodicalIF":3.1,"publicationDate":"2025-01-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142976784","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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
In Vitro Cytotoxic Potential and Integrated Network Pharmacology, Molecular Docking and Molecular Dynamic Approaches to Decipher the Mechanism of Gymnostachyum febrifugum Benth., in the Treatment of Breast Cancer. 体外细胞毒势及综合网络药理学、分子对接及分子动力学方法解读裸子糖的作用机制。在乳腺癌的治疗中。
IF 3.1 4区 生物学
Applied Biochemistry and Biotechnology Pub Date : 2025-01-11 DOI: 10.1007/s12010-024-05173-1
K J Spandana, Wilson Joel Rodrigues, Sudeep D Ghate, R Shyama Prasad Rao, K R Chandrashekar, N Bhagya
{"title":"In Vitro Cytotoxic Potential and Integrated Network Pharmacology, Molecular Docking and Molecular Dynamic Approaches to Decipher the Mechanism of Gymnostachyum febrifugum Benth., in the Treatment of Breast Cancer.","authors":"K J Spandana, Wilson Joel Rodrigues, Sudeep D Ghate, R Shyama Prasad Rao, K R Chandrashekar, N Bhagya","doi":"10.1007/s12010-024-05173-1","DOIUrl":"https://doi.org/10.1007/s12010-024-05173-1","url":null,"abstract":"<p><p>Gymnostachyum febrifugum, a less-known ethnomedicinal plant from the Western Ghats of India, is used to treat various diseases and serves as an antioxidant and antibacterial herb. The present study aims to profile the cytotoxic phytochemicals in G. febrifugum roots using GC-MS/MS, in vitro confirmation of cytotoxic potential against breast cancer and an in silico study to understand the mechanism of action. Phytochemical profiling using GC-MS/MS showed the presence of eight cytotoxic molecules with lupeol in high abundance. A potent cytotoxic effect of G. febrifugum roots against breast cancer was also observed with antiproliferation, antimigration, inhibition in colony formation and death of breast cancer cells. Further, the cytotoxic potential of the plant was confirmed with the apoptosis of cells as observed in the flow cytometry. In silico network pharmacology, GO and KEGG analysis suggested the modulation of proteins of MAPK, PI3K-AKT and apoptosis pathways by lupeol to induce cytotoxicity in breast cancer. Further, dynamic simulation revealed MAPK and AKT as the major targets for lupeol. Our studies comprehensively elucidated the role of lupeol, a major phytochemical in G. febrifugum to induce cytotoxicity against breast cancer by targeting major cancer signaling pathways, providing a promising strategy and scientific basis to explore lupeol in targeted cancer therapy.</p>","PeriodicalId":465,"journal":{"name":"Applied Biochemistry and Biotechnology","volume":" ","pages":""},"PeriodicalIF":3.1,"publicationDate":"2025-01-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142963402","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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
Integrating LC–MS/MS and In Silico Methods to Uncover Bioactive Compounds with Lipase Inhibitory Potential in the Antarctic Moss Warnstorfia fontinaliopsis 结合LC-MS/MS和In Silico方法揭示南极苔藓Warnstorfia fontinaliopsis中具有脂肪酶抑制潜力的生物活性化合物。
IF 3.1 4区 生物学
Applied Biochemistry and Biotechnology Pub Date : 2025-01-10 DOI: 10.1007/s12010-024-05139-3
Hirotake Yamaguchi, Ryoichi Yamada, Kristina Lama, Ui Joung Youn, Jun Hyuck Lee, Tae-Jin Oh
{"title":"Integrating LC–MS/MS and In Silico Methods to Uncover Bioactive Compounds with Lipase Inhibitory Potential in the Antarctic Moss Warnstorfia fontinaliopsis","authors":"Hirotake Yamaguchi,&nbsp;Ryoichi Yamada,&nbsp;Kristina Lama,&nbsp;Ui Joung Youn,&nbsp;Jun Hyuck Lee,&nbsp;Tae-Jin Oh","doi":"10.1007/s12010-024-05139-3","DOIUrl":"10.1007/s12010-024-05139-3","url":null,"abstract":"<div><p>Antarctic organisms are known for producing unique secondary metabolites, and this study specifically focuses on the less-explored metabolites of the moss <i>Warnstorfia fontinaliopsis</i>. To evaluate their potential bioactivity, we extracted secondary metabolites using four different solvents and identified significant lipase inhibitory activity in the methanol extract. Non-targeted metabolomic analysis using liquid chromatography-tandem mass spectrometry (LC–MS/MS) on this extract predicted the presence of 12 compounds, including several not previously reported in mosses. To gain insights into their enzyme inhibitory activity, the binding affinities of these candidate compounds to lipase were evaluated through in silico molecular docking. Further validation by molecular dynamics (MD) simulations revealed that hyocholic acid and pheophorbide A form stable complexes with human pancreatic lipase (HPL). Based on these results, targeted fractionation experiments were performed, yielding eight fractions. Among these, Fractions 4 and 6, which are assumed to contain those compounds, exhibited higher lipase inhibitory activity compared to the crude extract. Additionally, pharmacokinetic properties of those compounds were analyzed using SwissADME and Molinspiration calculations, suggesting their potential as drug candidates. This study establishes a promising methodology for identifying rare bioactive compounds of low abundance in underexplored natural resources by combining LC–MS/MS analysis with molecular docking. These findings also provide new insights into the chemical ecology of Antarctic mosses and their potential applications in pharmaceutical development.</p></div>","PeriodicalId":465,"journal":{"name":"Applied Biochemistry and Biotechnology","volume":"197 4","pages":"2734 - 2756"},"PeriodicalIF":3.1,"publicationDate":"2025-01-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s12010-024-05139-3.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142942350","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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
Epoxy-Affixed ZIF-8/CS/Cellulase: a Sustainable Approach for Hydrolysis of Agricultural Waste to Reducing Sugars 环氧树脂贴合ZIF-8/CS/纤维素酶:农业废弃物水解为还原糖的可持续途径
IF 3.1 4区 生物学
Applied Biochemistry and Biotechnology Pub Date : 2025-01-10 DOI: 10.1007/s12010-024-05144-6
Shashi Suhag, Vinita Hooda
{"title":"Epoxy-Affixed ZIF-8/CS/Cellulase: a Sustainable Approach for Hydrolysis of Agricultural Waste to Reducing Sugars","authors":"Shashi Suhag,&nbsp;Vinita Hooda","doi":"10.1007/s12010-024-05144-6","DOIUrl":"10.1007/s12010-024-05144-6","url":null,"abstract":"<div><p>Cellulase was effectively immobilized onto an epoxy-bound chitosan-modified zinc metal–organic framework (epoxy/ZIF-8/CS/cellulase) support, yielding a conjugation rate of 0.64 ± 0.02 mg/cm2 and retaining 80.01 ± 0.01% of its specific activity. The bare and cellulase-bound supports was characterized by Fourier transform infrared spectroscopy, scanning electron microscopy, atomic force microscopy and energy-dispersive X-ray spectroscopy. The immobilized enzyme exhibited optimal activity at pH 5.5 and a temperature of 70 ℃. The efficiency, stability and reactivity of the enzyme improved after immobilization, as evidenced by a decrease in activation energy, enthalpy and Gibbs free energy along with an increase in entropy change. The epoxy-affixed ZIF-8/CS/cellulase strip was successfully employed for rice husk hydrolysis achieving an impressive conversion efficiency of 95%. The method demonstrated a linear range from 0.1 to 0.9% (0.1 × 10<sup>–2</sup> to 0.9 × 10<sup>–2</sup> mg/ml) and exhibited a strong correlation (R<sup>2</sup> = 0.998) with the widely adopted 3, 5-dinitrosalicylic acid method. The epoxy/ZIF-8/CS bound cellulase exhibited remarkable thermal stability, retaining 100% of its activity at 70 °C, in contrast to just 53% for the free enzyme and displayed a half-life of 21 days after storage at 4 °C compared to 9 days for the free enzyme. Furthermore, it retained over 95% activity after 12 h at pH levels of 4.5 and 5.5 and showcased excellent reusability, maintaining activity over 25 cycles. Overall, this method offers high conversion efficiency and selectivity under benign conditions, with no undesirable by-products, making it a cost-effective solution for the routine hydrolysis of lignocellulosic biomass feedstock.</p><h3>Graphical Abstract</h3>\u0000<div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":465,"journal":{"name":"Applied Biochemistry and Biotechnology","volume":"197 4","pages":"2681 - 2712"},"PeriodicalIF":3.1,"publicationDate":"2025-01-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142942347","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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
Metformin Alleviates Doxorubicin-Induced Cardiotoxicity via Preserving Mitochondrial Dynamics Balance and Calcium Homeostasis 二甲双胍通过保持线粒体动力学平衡和钙稳态减轻阿霉素诱导的心脏毒性。
IF 3.1 4区 生物学
Applied Biochemistry and Biotechnology Pub Date : 2025-01-10 DOI: 10.1007/s12010-024-05141-9
Nashwa Maghraby, Mona A. H. EL-Baz, Athar M. A. Hassan, Sary Kh. Abd- elghaffar, Amira S. Ahmed, Mahmoud S. Sabra
{"title":"Metformin Alleviates Doxorubicin-Induced Cardiotoxicity via Preserving Mitochondrial Dynamics Balance and Calcium Homeostasis","authors":"Nashwa Maghraby,&nbsp;Mona A. H. EL-Baz,&nbsp;Athar M. A. Hassan,&nbsp;Sary Kh. Abd- elghaffar,&nbsp;Amira S. Ahmed,&nbsp;Mahmoud S. Sabra","doi":"10.1007/s12010-024-05141-9","DOIUrl":"10.1007/s12010-024-05141-9","url":null,"abstract":"<div><p>Doxorubicin (DOX) is a commonly used chemotherapeutic medication for treating malignancies, although its cardiotoxicity limits its use. There is growing evidence that alteration of the mitochondrial fission/fusion dynamic processes accompanied by excessive reactive oxygen species (ROS) production and alteration of calcium Ca<sup>2+</sup> homeostasis are potential underlying mechanisms of DOX-induced cardiotoxicity (DIC). Metformin (Met) is an AMP-activated protein kinase (AMPK) activator that has antioxidant properties and cardioprotective effects. The purpose of the study is to assess Met's possible cardioprotective benefits against DOX-induced cardiotoxicity. The study included 32 adult male rats. They were randomly divided into four groups: administered saline, DOX, Met, or DOX combined with Met respectively. Heart tissues were used for biochemical assays that measured oxidative stress markers, malondialdehyde (MDA), reduced glutathione (GSH), mitochondrial dynamics markers, optic atrophy-1(OPA-1) and dynamin-1-like protein (Drp1), calcineurin and caspase-3. Serum levels of myocardial injury markers, cardiac troponin I (cTn-I), and aspartate aminotransferase (AST), were also measured. The results revealed that DOX intoxication was associated with a significant increase in the levels of serum cTn-I and AST, increased cardiac MDA level, increased cardiac Drp1, calcineurin, and caspase-3 expressions, as well as reduced cardiac GSH level and cardiac OPA-1 expression. On the other hand, Met treatment significantly reduced DIC by decreasing oxidative stress, apoptosis, and improving mitochondrial and calcium balance. Finally, this study shows that Met may be able to protect the heart from damage caused by DOX by working as an antioxidant and anti-apoptotic agent and keeping the balance of calcium and mitochondria.</p></div>","PeriodicalId":465,"journal":{"name":"Applied Biochemistry and Biotechnology","volume":"197 4","pages":"2713 - 2733"},"PeriodicalIF":3.1,"publicationDate":"2025-01-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s12010-024-05141-9.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142942354","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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
Laccase Mediated One-Pot, Green Synthesis of Thiazoles, β-Keto Sulfones and Imidazopyridines 漆酶介导的一锅绿色合成噻唑、β-酮砜和咪唑吡啶。
IF 3.1 4区 生物学
Applied Biochemistry and Biotechnology Pub Date : 2025-01-09 DOI: 10.1007/s12010-024-05157-1
Sanjay S. Gaikwad, Mehul M. Hiwale, Shankesh C. Zyate, Santosh B. Gaikwad, Suresh B. Waghmode, Amardeep R. Jadhao
{"title":"Laccase Mediated One-Pot, Green Synthesis of Thiazoles, β-Keto Sulfones and Imidazopyridines","authors":"Sanjay S. Gaikwad,&nbsp;Mehul M. Hiwale,&nbsp;Shankesh C. Zyate,&nbsp;Santosh B. Gaikwad,&nbsp;Suresh B. Waghmode,&nbsp;Amardeep R. Jadhao","doi":"10.1007/s12010-024-05157-1","DOIUrl":"10.1007/s12010-024-05157-1","url":null,"abstract":"<div><p>We report the first in situ reaction of the β-haloketones obtained from laccase catalysed oxidation of secondary alcohol 2-halo phenylethanol’s in present study. To the best of our knowledge, this is the first ever fusion of laccase catalysed oxidation reaction with green organic synthetic reaction. The methodology employs molecular oxygen to oxidize secondary alcohol in biphasic medium by laccase from <i>T. giganteum</i> AGHP, to obtain β-haloketones. This research provides environmentally benign access to thiazole, β-ketosulfone and imidazopyridine derivatives in good to very good yields with wide functional group tolerance.</p><h3>Graphical Abstract</h3><p>Green method for synthesis of thiazoles, imidazopyridines and <i>β</i>-keto sulfones were synthesised by using fusion of laccase catalysed enzymatic oxidation with the green organic annulation reaction</p><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":465,"journal":{"name":"Applied Biochemistry and Biotechnology","volume":"197 4","pages":"2757 - 2767"},"PeriodicalIF":3.1,"publicationDate":"2025-01-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142942353","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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
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