Monishka Battula, Samiksha Bhor, Shovonlal Bhowmick, Gaber E Eldesoky, Rupesh V Chikhale
{"title":"Targeting Mycobacterial Dormancy Survival Regulator (DosR) With Generative Artificial Intelligence and Omics Methods.","authors":"Monishka Battula, Samiksha Bhor, Shovonlal Bhowmick, Gaber E Eldesoky, Rupesh V Chikhale","doi":"10.1002/cbdv.202402926","DOIUrl":"https://doi.org/10.1002/cbdv.202402926","url":null,"abstract":"<p><p>Tuberculosis, driven by Mycobacterium tuberculosis, remains a global health challenge due to the pathogen's ability to enter a dormant state, evading immune responses and conventional antibiotic treatments. The dormancy survival regulator (DosR) protein, a key transcriptional regulator, orchestrates this dormancy mechanism, making it an attractive target for therapeutic intervention. In this research, we applied a comprehensive in silico approach to identify potential inhibitors of DosR, combining domain and motif analysis, multiple sequence alignment (MSA), and consensus sequence generation to uncover conserved regions within the DosR protein across various Mycobacterium species. Initially, FDA-approved compounds were screened through molecular docking to identify candidates with promising binding affinities to the DosR active site. The top 100 compounds were then used for de novo molecule generation using REINVENT4, resulting in a new library of novel compounds. A rigorous absorption, distribution, metabolism, excretion, and toxicity (ADMET) analysis, molecular dynamics (MD) simulations, and MMGBSA led to top 5 selected compounds and confirmed their stability and strong interactions with the DosR protein. Key candidates, including RI081 (N-(4-(N-(cyclohexylcarbamoyl)sulfamoyl) benzyl)nicotinamide), RI089 ((S)-10-(((3-chlorophenyl)amino)methyl)-9-fluoro-3-methyl-7-oxo-2,3-dihydro-7H-[1,4]oxazino[2,3,4-ij]quinoline-6-carboxylic acid), and RI107 ((S)-2-((1r,4S)-4-methylcyclohexane-1-carboxamido)-3-(2-oxo-1,2-dihydroquinolin-4-yl)propanoic acid), emerged as the most promising inhibitors, demonstrating both stability and strong binding affinity. This multi-tiered approach, blending bioinformatics, molecular docking, and dynamics, presents a robust framework for discovery of DosR inhibitors.</p>","PeriodicalId":9878,"journal":{"name":"Chemistry & Biodiversity","volume":" ","pages":"e02926"},"PeriodicalIF":2.3,"publicationDate":"2025-06-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144282693","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"New Squalene Triterpenes From the Fungus Irpex laceratus.","authors":"Chen Chen, Linjie Wei, Yunfei Yuan, Yuchan Chen, Siran Li, Jiaying Lai, Fangfang Duan, Siyu Qin, Bin Jiang, Xiaoyi Wei, Zhenxing Zou, Haibo Tan","doi":"10.1002/cbdv.202501271","DOIUrl":"https://doi.org/10.1002/cbdv.202501271","url":null,"abstract":"<p><p>Six undescribed squalene triterpenes, named irpelacerins A-F (1-6), together with three known lanostane triterpenoids (7-9) were isolated from the solid fermentation of the endophytic fungus Irpex laceratus, which was collected from the medicinal plant Casuarina equisetifolia L. Compounds 1-6 were a group of uncommon chain triterpenoids, which existed in the form of acyclic or monocyclic structures. Their chemical structures were determined by extensive analyses of NMR spectroscopic data, high-resolution electrospray ionization mass spectrometry, and comparison with literature analogs. Moreover, all these compounds were evaluated for their biological activities, and the results clarified that compounds 3, 6, 8, and 9 showed notable inhibitory activity against LPS-induced NO production with IC<sub>50</sub> values of 32.5, 48.0, 76.8, and 58.8 µM, respectively.</p>","PeriodicalId":9878,"journal":{"name":"Chemistry & Biodiversity","volume":" ","pages":"e01271"},"PeriodicalIF":2.3,"publicationDate":"2025-06-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144289398","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"RETRACTION: Preparation and Optimization of Hydrophilic Modified Pullulan Encapsulated Tetracycline for Significant Antibacterial and Anti-Biofilm Activity Against Stenotrophomonas maltophilia Isolates.","authors":"","doi":"10.1002/cbdv.70067","DOIUrl":"https://doi.org/10.1002/cbdv.70067","url":null,"abstract":"","PeriodicalId":9878,"journal":{"name":"Chemistry & Biodiversity","volume":" ","pages":"e70067"},"PeriodicalIF":2.3,"publicationDate":"2025-06-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144265442","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Total Flavonoids of Engelhardia roxburghiana Wall. Attenuated Nonalcoholic Fatty Liver Disease by Regulating Lipid Metabolism and Inflammation Through Targeting SREBP1 and PPARα.","authors":"Qiuyan Huang, Xuanren Pan, Yuyang Li, Yanjing Li, Xinyi Zhao, Kedao Lai, Jie Wei","doi":"10.1002/cbdv.202500190","DOIUrl":"https://doi.org/10.1002/cbdv.202500190","url":null,"abstract":"<p><p>This research delved into the effects and mechanisms of total flavonoids of Engelhardia roxburghiana Wall. (TFER) on nonalcoholic fatty liver disease (NAFLD). High-fat diet-induced NAFLD rat models and palmitic acid-induced HepG2 cell models were employed. In both models, TFER significantly reduced serum levels of triglycerides (TG), total cholesterol (TC), aspartate aminotransferase (AST), alanine aminotransferase (ALT), malondialdehyde (MDA), and inflammatory factors such as interleukin-6 (IL-6), interleukin 1 beta (IL-1β), and tumor necrosis factor-alpha (TNF-α). Additionally, it increased superoxide dismutase (SOD) levels. Mechanistically, TFER regulated lipid-related proteins Sterol Regulatory Element-Binding Protein 1 (SREBP1), peroxisome proliferator-activated receptor alpha (PPARα), and Retinol Binding Protein 4 (RBP4). In summary, TFER exhibits potential for treating NAFLD by modulating these lipid-related proteins.</p>","PeriodicalId":9878,"journal":{"name":"Chemistry & Biodiversity","volume":" ","pages":"e00190"},"PeriodicalIF":2.3,"publicationDate":"2025-06-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144265443","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Effect of Hydroalcoholic Extract and Terpene-Rich Oil of Vetiveria zizanioides L. Roots in Chronic Kidney Disease in Rats.","authors":"Pranali B Yeram, Amisha Vora, Yogesh A Kulkarni","doi":"10.1002/cbdv.202500789","DOIUrl":"https://doi.org/10.1002/cbdv.202500789","url":null,"abstract":"<p><p>Chronic kidney disease (CKD) presents a significant global health concern, often leading to complications such as renal failure and cardiovascular issues. Alternative therapies based on medicinal plants are the focused area for the management of CKD. The present study focuses on the impact of Vetiveria zizanioides extract and its terpenes-rich oil in management of CKD. The study was carried out in 0.3% of adenine-induced CKD in Sprague Dawley rats. Animals were divided into seven groups (n = 8), including normal control, disease control, standard control (dapagliflozin 10 mg/kg), extract treatment groups (250 and 500 mg/kg), and oil treatment groups (50 and 100 mg/kg). Treatment of Vetiveria zizanioides extract and terpene-rich oil was given orally for 28 days after induction of the CKD. Biochemical parameters such as BUN and creatinine, urine parameters such as albumin excretion rate and protein excretion rate, inflammatory cytokines, oxidative stress, and fibrosis were elevated in CKD-induced animals. Whereas, with the treatment of extract and oil of Vetiveria zizanioides, kidney function was improved in the treatment groups with a significant decrease in BUN, creatinine, albumin and protein excretion rate, MDA, TNF-α, IL-6, and TGF-β1 expression. Treatment with extract and oil showed significant increase in the creatinine and urea clearance, GFR and antioxidant markers such as GSH, catalase, and SOD. Renal structure in the treatment group showed mitigation of fibrosis and tubular atrophy.</p>","PeriodicalId":9878,"journal":{"name":"Chemistry & Biodiversity","volume":" ","pages":"e202500789"},"PeriodicalIF":2.3,"publicationDate":"2025-06-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144265441","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Guy Raphael Sado Nouemsi, Olive Monique Fotso Demgne, Peron Bosco Leutcha, François Damen, James Deke Simo Mpetga, İlhami Çelik, Mathieu Téné, Victor Kuete, Alain Meli Lannang
{"title":"Antibacterial Potential of a New Endiandric Acid From Beilschmiedia acuta (Lauraceae) Against Drug-resistant Bacteria.","authors":"Guy Raphael Sado Nouemsi, Olive Monique Fotso Demgne, Peron Bosco Leutcha, François Damen, James Deke Simo Mpetga, İlhami Çelik, Mathieu Téné, Victor Kuete, Alain Meli Lannang","doi":"10.1002/cbdv.202500366","DOIUrl":"https://doi.org/10.1002/cbdv.202500366","url":null,"abstract":"<p><p>A previously unidentified endiandric acid derivative named beilschmiedic acid P (1), together with eight (2-9) known compounds including four pentacyclic triterpenoids (3-6), one amide (2) and, three steroids (7-9) were isolated from Beilschmiedia acuta stem barks. Chromatographic techniques were used for these isolations while their characterization was based on their one-/two-dimensional nuclear magnetic resonance and mass spectrometry experiments. The antibacterial activity of the new compound (1) was tested via INT colourimetric assay against nine bacterial strains all expressing multidrug-resistant phenotypes including Klebsiella pneumoniae (KP55), Escherichia coli (AG102 and ATCC8739), Pseudomonas aeruginosa (PA124 and PA01), Enterobacter aerogenes (EA27 and ATCC13048) and Providencia stuartii (PS2636 and ATCC29916). The activity was categorised based on the scale described by Kuete (2010), as significantly active for minimal inhibitory concentration (MIC) ≤ 10 µg/mL, moderately active for 10 µg/mL < MIC ≤ 100 µg/mL and weakly active for MIC > 100 µg/mL. The results showed a moderately active antibacterial activity of compound 1 at a rate of 77.78% (7/9) on the tested strains that is, seven out of the nine bacteria were sensitive to the action of the tested compound. Among the tested strains, E. coli (ATCC8739) showed the most efficient MIC value of 16 µg/mL.</p>","PeriodicalId":9878,"journal":{"name":"Chemistry & Biodiversity","volume":" ","pages":"e00366"},"PeriodicalIF":2.3,"publicationDate":"2025-06-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144246623","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Lory Sthephany Rochín-Hernández, José Antonio Guerrero-Analco, Juan Luis Monribot-Villanueva, Luis Bernardo Flores-Cotera
{"title":"Piper auritum (Kunth) Fungal Endophytes: A Source of Metabolites to Inhibit the Formation of Advanced Glycation End Products.","authors":"Lory Sthephany Rochín-Hernández, José Antonio Guerrero-Analco, Juan Luis Monribot-Villanueva, Luis Bernardo Flores-Cotera","doi":"10.1002/cbdv.202403371","DOIUrl":"https://doi.org/10.1002/cbdv.202403371","url":null,"abstract":"<p><p>Excessive accumulation of advanced glycation end products (AGEs) is implicated in the development of non-communicable diseases like diabetes, neurodegeneration, and cancer, among others. Inhibition of AGEs formation represents a promising therapeutic alternative for management of these diseases. This study explores 12 fungal endophytes from Piper auritum (Kunth) as sources of inhibitors of AGEs formation (in vitro). Extracts from Neopestalotiopsis and Diaporthe exhibited the strongest activity, reducing AGEs formation more than 60%. Chemical profiling of these extracts was performed by untargeted and phenolics-targeted approaches using ultra-high performance liquid chromatography coupled to mass spectrometry (UPLC-high resolution mass spectrometry [HRMS] and UPLC-MS/MS, respectively). A total of 41 and 36 compounds were identified in Diaporthe and Neopestalotiopsis extracts, respectively. Seven phenolic compounds were identified in the targeted approach and evaluated for their inhibitory effects on AGEs and fructosamine formation. Gentisic acid displayed the strongest inhibition on fluorescent AGEs formation, followed by sinapic acid, whereas secoisolariciresinol, detected in Neopestalotiopsis extracts, was the most effective inhibitor of fructosamine formation. Additionally, several coumarins, xanthones, and terpenoids are suggested as bioactive candidates due to their structural similarity to known anti-AGEs compounds. We conclude that Neopestalotiopsis and Diaporthe endophytes from P. auritum harbor promising and yet underexplored anti-AGEs compounds with potential biomedical relevance.</p>","PeriodicalId":9878,"journal":{"name":"Chemistry & Biodiversity","volume":" ","pages":"e03371"},"PeriodicalIF":2.3,"publicationDate":"2025-06-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144246705","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Aspergillus versicolor Strain PSFNRO-2: A Novel Producer of 1,2,3-Thiadiazol and Pyridinium Salt Derivative Bioactive Compounds From an Endophyte of Stevia rebaudiana (Bertoni) Bertoni.","authors":"Sheela Chandra","doi":"10.1002/cbdv.202500937","DOIUrl":"https://doi.org/10.1002/cbdv.202500937","url":null,"abstract":"<p><p>Endophytes contain many bioactive compounds. The methanolic extract of Aspergillus versicolor strain PSFNRO-2 was extracted using ethyl acetate solvent, and the endophyte was isolated from the Stevia rebaudiana (Bertoni) Bertoni plant, which was discussed previously. The extract was tested for different assays and zone formation (enzyme production). The culture conditions were 4 days at pH 6.5 and a temperature of 28°C. The maximum formation zone was for lipase (48.6 ± 2.51 mm), then protease (53.6 ± 3.78 mm) and amylase (11.3 ± 1.52 mm). The different enzyme activity for amylase (18.6 ± 0.1 U/mL), lipase (15.4 ± 0.09 U/mL) and protease was (18.7 ± 0.15 U/mL). Gas chromatography-mass spectrometry (GC-MS) analysis reveals the prominent presence of silanediol dimethyl, which has a 100% area of abundance; sec-butyl N-[bis(dimethylamino)methylidene]-P-methyl phosphonamidite has 49.91%; hexadecanoic acid, methyl ester has 23.35%; phenol, 2,5-bis(1,1-dimethylethyl) has 20.87%; oxime, methoxy-phenol has 17.88%; N-difluorophosphoxy-O-trimethylsilylhydroxylamine has 15.18%; n-hexadecanoic acid has 14.01%; and 13-octadecanoic acid, methyl ester has 8.87% area, respectively. n-Dodecylpyridinium chloride is chemically synthesized, and its pyridinium salts have antibacterial and antiseptic properties. Benzyl (1,2,3-thiadiazol-4-y) carbamate has the role of an antimicrobial, antifungal and anticancer activity. sec-Butyl N-[bis(dimethylamino)methylidene]-P-methyl phosphonamidite was a chemical reagent commonly synthesizing modified oligonucleotide. These bioactive compounds were not naturally sourced but found in the endophyte A. versicolor strain PSFNRO-2, which can be studied for the pharmaceutical industry and medicinal chemistry, offering a novel and sustainable source for pharmaceutical and therapeutic applications.</p>","PeriodicalId":9878,"journal":{"name":"Chemistry & Biodiversity","volume":" ","pages":"e00937"},"PeriodicalIF":2.3,"publicationDate":"2025-06-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144246698","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Neeraj Kumar, Mohd Aqil, Abul Kalam Najmi, Mohd Vaseem Ismail, Mohammad Mateen Zehgeer, Mohd Mujeeb
{"title":"The Novel Approaches to Extraction Techniques, Drug Delivery Technologies, Pharmacological Applications, Patents of the Potent Flavonoid 'Luteolin': An Appraisal.","authors":"Neeraj Kumar, Mohd Aqil, Abul Kalam Najmi, Mohd Vaseem Ismail, Mohammad Mateen Zehgeer, Mohd Mujeeb","doi":"10.1002/cbdv.202500193","DOIUrl":"https://doi.org/10.1002/cbdv.202500193","url":null,"abstract":"<p><p>Herbal plants have been widely used in traditional medicine due to their natural origin, easy accessibility, and generally safer profile compared to synthetic drugs. Luteolin, a naturally occurring flavonoid, holds a significant place in traditional systems such as Ayurveda and Traditional Chinese Medicine, where it has been used to manage inflammation, respiratory conditions, and digestive issues, and to support overall health. It is commonly found in herbs like Ocimum sanctum L., Capsicum annuum L. celery, and chamomile. In recent years, luteolin has been extensively studied for its diverse pharmacological properties, including antioxidant, anti-inflammatory, anticancer, and neuroprotective effects. This review provides a detailed examination of luteolin, covering its natural sources, structure-activity relationship, and various extraction techniques both conventional and modern. Additionally, it explores its mechanisms of action, pharmacological activities, and advancements in nanoformulation strategies, along with the experimental models used to assess their efficacy. The review also compiles available data on clinical trials and patents related to luteolin. By presenting comprehensive and consolidated information, this review serves as a valuable resource for guiding future research and therapeutic development.</p>","PeriodicalId":9878,"journal":{"name":"Chemistry & Biodiversity","volume":" ","pages":"e00193"},"PeriodicalIF":2.3,"publicationDate":"2025-06-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144246707","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Beáta Baranová, Barbora Kudláčková, Ram Prasad Baral, Lenka Svojanovská, Qaiser Javed, Giuseppe Amato, Lucia Caputo, Laura De Martino, Rosaria Francolino, Saroj Kumar Chaudhary, Hazem S Elshafie, Achyut Adhikari, Vincenzo De Feo, Daniela Gruľová
{"title":"Potential Herbicidal and Insecticidal (Beneficial) Properties of Nepalese Lemongrass Essential Oil.","authors":"Beáta Baranová, Barbora Kudláčková, Ram Prasad Baral, Lenka Svojanovská, Qaiser Javed, Giuseppe Amato, Lucia Caputo, Laura De Martino, Rosaria Francolino, Saroj Kumar Chaudhary, Hazem S Elshafie, Achyut Adhikari, Vincenzo De Feo, Daniela Gruľová","doi":"10.1002/cbdv.202501095","DOIUrl":"https://doi.org/10.1002/cbdv.202501095","url":null,"abstract":"<p><p>Cymbopogon citratus (DC.) Stapf, commonly known as lemongrass, is a member of the Poaceae family and is native to tropical and subtropical regions, including South Asia. The species is renowned for its diverse applications in culinary arts, perfumery, and traditional medicinal practices. This study aimed to characterize the essential oil (EO) composition of lemongrass and evaluate its biological properties. The EO was extracted via hydrodistillation using a Clevenger apparatus, and its chemical profile was analyzed by gas chromatography-mass spectrometry (GC/MS). The major constituents identified were neral (35.5 ± 0.6%) and geranial (36.0 ± 0.4%), which together constitute the primary isomers of citral. The antioxidant activity, assessed using DPPH, FRAP, and ABTS assays, was moderate compared to the Trolox standard. Similarly, the EO exhibited weak tyrosinase inhibition activity. However, the EO exhibited significant herbicidal and insecticidal effects with no observed ecotoxicological risks. These findings highlight lemongrass EO as a promising eco-friendly alternative to synthetic pesticides.</p>","PeriodicalId":9878,"journal":{"name":"Chemistry & Biodiversity","volume":" ","pages":"e01095"},"PeriodicalIF":2.3,"publicationDate":"2025-06-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144246706","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}