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Annadurai Y, Easwaran M, Sundar S, Thangamani L, Meyyazhagan A, Malaisamy A, Natarajan J, Piramanayagam S. SPP1, a potential therapeutic target and biomarker for lung cancer: functional insights through computational studies. J Biomol Struct Dyn 2024; 42:1336-1351. [PMID: 37096999 DOI: 10.1080/07391102.2023.2199871] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2022] [Accepted: 03/30/2023] [Indexed: 04/26/2023]
Abstract
NIH reported 128 different types of cancer of which lung cancer is the leading cause of mortality. Globally, it is estimated that on average one in every seventeen hospitalized patients was deceased. There are plenty of studies that have been reported on lung cancer draggability and therapeutics, but yet a protein that plays a central specific to cure the disease remains unclear. So, this study is designed to identify the possible therapeutic targets and biomarkers that can be used for the potential treatment of lung cancers. In order to identify differentially expressed genes, 39 microarray datasets of lung cancer patients were obtained from various demographic regions of the GEO database available at NCBI. After annotating statistically, 6229 up-regulated genes and 10324 down-regulated genes were found. Out of 17 up-regulated genes and significant genes, we selected SPP1 (osteopontin) through virtual screening studies. We found functional interactions with the other cancer-associated genes such as VEGF, FGA, JUN, EGFR, and TGFB1. For the virtual screening studies,198 biological compounds were retrieved from the ACNPD database and docked with SPP1 protein (PDBID: 3DSF). In the results, two highly potential compounds secoisolariciresinol diglucoside (-12.9 kcal/mol), and Hesperidin (-12.0 kcal/mol) showed the highest binding affinity. The stability of the complex was accessed by 100 ns simulation in an SPC water model. From the functional insights obtained through these computational studies, we report that SPP1 could be a potential biomarker and successive therapeutic protein target for lung cancer treatment.
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Affiliation(s)
- Yamuna Annadurai
- Computational Biology Lab, Department of Bioinformatics, Bharathiar University, Coimbatore, Tamil Nadu, India
| | - Murugesh Easwaran
- Computational Biology Lab, Department of Bioinformatics, Bharathiar University, Coimbatore, Tamil Nadu, India
| | - Shobana Sundar
- Department of Biotechnology, PSG College of Technology, Coimbatore, Tamil Nadu, India
| | - Lokesh Thangamani
- Computational Biology Lab, Department of Bioinformatics, Bharathiar University, Coimbatore, Tamil Nadu, India
| | - Arun Meyyazhagan
- Dipartimento di Medicina e Chirurgia, Università di Perugia, Perugia, Italy
- Department of Life Sciences, CHRIST (Deemed to be University), Bengaluru, Karnataka, India
- Department of Translation Medicine and Surgery, Perugia University, Perugia, Italy
| | - Arunkumar Malaisamy
- Transcription Regulation Group, International centre for Genetic Engineering and Biotechnology, New Delhi, India
| | - Jeyakumar Natarajan
- Text Mining Lab, Department of Bioinformatics, Bharathiar University, Coimbatore, Tamil Nadu, India
| | - Shanmughavel Piramanayagam
- Computational Biology Lab, Department of Bioinformatics, Bharathiar University, Coimbatore, Tamil Nadu, India
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Rajasekaran S, Bt P, Murugan C, Mengesha MG, Easwaran M, Naik AS, Ks SVA, Kanna RM, Shetty AP. The disc-endplate-bone-marrow complex classification: progress in our understanding of Modic vertebral endplate changes and their clinical relevance. Spine J 2024; 24:34-45. [PMID: 37690481 DOI: 10.1016/j.spinee.2023.09.002] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/23/2023] [Revised: 08/29/2023] [Accepted: 09/02/2023] [Indexed: 09/12/2023]
Abstract
BACKGROUND CONTEXT The disc, endplate (EP), and bone marrow region of the spine form a single anatomical and functional interdependent unit; isolated degeneration of any one structure is rare. Modic changes (MC), however, are restricted to the subchondral bone alone and based on only T1 and T2 sequences of MRI. This results in poor reliability in differentiating fat from edema and hence may give a false impression of disease inactivity. PURPOSE To study the changes in disc, endplate, and bone marrow as a whole in degeneration and propose a classification based on the activity status of this complex with the addition of STIR MRI sequences. STUDY DESIGN Observational cohort. PATIENT SAMPLE Patients with isolated brain, cervical, or thoracic spine injury and patients with low back pain (LBP) who underwent MRI formed the control and study groups, respectively. OUTCOME MEASURES Demographic data, the prevalence of MC and disc-endplate-bone marrow classification (DEBC) changes, EPs undergoing reclassification based on DEBC, and comparison of the prevalence of MC, DEBC, H+modifier and DEBC with H+concordance between control and LBP group. The study determined the risk of LBP patients undergoing surgery as well as the incidence of postoperative infection based on DEBC changes. Significance was calculated by binomial test and chi-square test with the effect size of 0.3 to 0.5. Prevalence and association of outcome were calculated by Altman's odds ratio with the 95% CI and the scoring of z statistics. Logistic expression was plotted for independent variables associated with each class of both Modic and DEBC against dependent variables surgery and nonsurgery. METHODS Lumbar segments in both groups were assessed for MC types. The DEBC classification was developed with the addition of STIR images and studying the interdependent complex as a whole: type-A: acute inflammation; type-B: chronic persistence; type-C: latent and type-D: inactive. Modifier H+ was added if there was disc herniation. The classification was compared with MC and correlated to clinical outcomes. RESULTS A total of 3,560 EPs of 445 controls and 8,680 EPs in 1,085 patients with LBP were assessed. Four nonMC, 560 MC-II, and 22 MC-III EPs were found to have previously undetected edema in STIR (n=542) or hyperintensity in discs (n=44) needing reclassification. The formerly undescribed type-B of DEBC, representing a chronic persistent activity state was the most common (51.8%) type. The difference between the control and LBP of H+(12% vs 28.8%) and its co-occurrence with DEBC type 1.1% vs 23.3%) was significant (p<.0001). The odds ratio for the need for surgery was highest (OR=5.2) when H+ and DEBC type change co-occurred. Postoperative deep infection (as determined by CDC criteria) was 0.47% in nonDEBC, compared with 2.4% in patients with DEBC (p=.002), with maximum occurrence in type-B. CONCLUSION Classification based on the classic MC was found to need a reclassification in 586 EPs showing the shortcomings of results of previous studies. Considering the DEBC allowed better classification and better predictability for the need for surgical intervention and incidence of postoperative infection rate than MC.
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Affiliation(s)
| | - Pushpa Bt
- Department of Radiodiagnosis, Ganga hospital, 313. Mettupalayam Rd, Coimbatore, Tamil Nadu, India
| | - Chandhan Murugan
- Department of Spine Surgery, Ganga Hospital, 313. Mettupalayam Rd, Coimbatore, Tamil Nadu, India
| | - Mengistu G Mengesha
- Department of Spine Surgery, Ganga Hospital, 313. Mettupalayam Rd, Coimbatore, Tamil Nadu, India
| | - Murugesh Easwaran
- Ganga Research Centre, 187. Mettupalayam Rd, Koundampalayam, Coimbatore, Tamil Nadu, India
| | - Ashish Shankar Naik
- Department of Spine Surgery, Ganga Hospital, 313. Mettupalayam Rd, Coimbatore, Tamil Nadu, India
| | - Sri Vijay Anand Ks
- Department of Spine Surgery, Ganga Hospital, 313. Mettupalayam Rd, Coimbatore, Tamil Nadu, India
| | - Rishi Mugesh Kanna
- Department of Spine Surgery, Ganga Hospital, 313. Mettupalayam Rd, Coimbatore, Tamil Nadu, India
| | - Ajoy Prasad Shetty
- Department of Spine Surgery, Ganga Hospital, 313. Mettupalayam Rd, Coimbatore, Tamil Nadu, India
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Sahu A, Ahmad S, Imtiyaz K, Kizhakkeppurath Kumaran A, Islam M, Raza K, Easwaran M, Kurukkan Kunnath A, Rizvi MA, Verma S. In-silico and in-vitro study reveals ziprasidone as a potential aromatase inhibitor against breast carcinoma. Sci Rep 2023; 13:16545. [PMID: 37783782 PMCID: PMC10545834 DOI: 10.1038/s41598-023-43789-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2023] [Accepted: 09/28/2023] [Indexed: 10/04/2023] Open
Abstract
Aromatase enzyme plays a fundamental role in the development of estrogen receptors, and due to this functionality, the enzyme has gained significant attention as a therapeutic for reproductive disorders and cancer diseases. The currently employed aromatase inhibitors have severe side effects whereas our novel aromatase inhibitor is more selective and less toxic, therefore has greater potential to be developed as a drug. The research framework of this study is to identify a potent inhibitor for the aromatase target by profiling molecular descriptors of the ligand and to find a functional pocket in the target by docking and MD simulations. For assessing cellular and metabolic activities as indicators of cell viability and cytotoxicity, in-vitro studies were performed by using the colorimetric MTT assay. Aromatase activities were determined by a fluorometric method. Cell morphology was assessed by phase-contrast light microscopy. Flow cytometry and Annexin V-FITC/PI staining assay determined cell cycle distribution and apoptosis. This study reports that CHEMBL708 (Ziprasidone) is the most promising compound that showed excellent aromatase inhibitory activity. By using better drug design methods and experimental studies, our study identified a novel compound that could be effective as a high-potential drug candidate against aromatase enzyme. We conclude that the compound ziprasidone effectively blocks the cell cycle at the G1-S phase and induces cancer cell death. Further, in-vivo studies are vital for developing ziprasidone as an anticancer agent. Lastly, our research outcomes based on the results of the in-silico experiments may pave the way for identifying effective drug candidates for therapeutic use in breast cancer.
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Affiliation(s)
- Ankita Sahu
- Tumour Biology Lab, ICMR-National Institute of Pathology, New Delhi, 110029, India
| | - Shaban Ahmad
- Department of Computer Science, Jamia Millia Islamia, New Delhi, 110025, India
| | - Khalid Imtiyaz
- Department of Bioscience, Jamia Millia Islamia, New Delhi, 110025, India
| | | | - Mojahidul Islam
- Molecular and Cellular Medicine, Institute of Liver and Biliary Sciences, New Delhi, 110070, India
| | - Khalid Raza
- Department of Computer Science, Jamia Millia Islamia, New Delhi, 110025, India.
| | - Murugesh Easwaran
- Nutritional Improvement of Crops, Plant Molecular Biology Division, International Centre for Genetic Engineering and Biotechnology, New Delhi, 110067, India
| | - Asha Kurukkan Kunnath
- Mumbai Research Center, ICAR-Central Institute of Fisheries Technology, Navi Mumbai, 400703, India
| | - Moshahid A Rizvi
- Department of Bioscience, Jamia Millia Islamia, New Delhi, 110025, India
| | - Saurabh Verma
- Tumour Biology Lab, ICMR-National Institute of Pathology, New Delhi, 110029, India.
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Rajasekaran S, Vasudevan G, Easwaran M, Devi Ps N, Anand K S SV, Muthurajan R, Tangavel C, Murugan C, B T P, Shetty AP, Kanna RM. "Are we barking up the wrong tree? Too much emphasis on Cutibacterium acnes and ignoring other pathogens"- a study based on next-generation sequencing of normal and diseased discs. Spine J 2023; 23:1414-1426. [PMID: 37369253 DOI: 10.1016/j.spinee.2023.06.396] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/23/2023] [Revised: 06/19/2023] [Accepted: 06/19/2023] [Indexed: 06/29/2023]
Abstract
BACKGROUND The majority of literature on bacterial flora in the disc stands disadvantaged in utilizing traditional culture methods and targeting a single bacterium, Cutibacterium acnes. PURPOSE Our objective was to document the diversity in the bacterial flora between normal and degenerated discs for shortlisting potential pathogens using next-generation genomic tools. STUDY DESIGN Experimental case-control study. METHODS Researchers employed 16S metagenome sequencing to profile bacterial diversity in magnetic resonance imaging normal healthy discs from brain-dead organ voluntary donors (n=20) and 40 degenerated disc samples harvested during surgery (Modic [MC]=20 and non-Modic [NMC]=20). The V3-V4 region was amplified using universal bacterial primers 341F and 806R, and the libraries were sequenced using Illumina NovoSeq 6000 platform. Statistical significance was set at bacteria with a minimum of 100 operational taxonomic unit (OTU) and present in at least 70% of the samples. The quality check-filtered reads were processed using the QIIME-2 pipeline. The OTU clustering and taxonomic classification were carried out for the merged reads using the Greengenes/SILVA reference database. Validation was done by identification of bacterial metabolites in samples using the liquid chromatography-mass spectrometry approach. RESULTS Abundant bacteria differing widely in diversity, as evidenced by Alfa and Beta diversity analysis, were present in all control and degenerative samples. The number of bacterial genera was 27 (14-gram-positive: 13-gram-negative) in the control group, 23 (10-gram-positive: 11-gram-negative) in the Modic group, and 16 (11-gram-positive: 5-gram-negative) in the non-Modic group. In the Modic group, gram-negative bacteria OTUs were found to be predominant (more than 50% of the total bacteria identified), whereas in control and non-Modic groups the OTUs of gram-positive bacteria were predominant. Species-level analysis revealed an abundance of opportunistic gram-negative pathogens like Pseudomonas aeruginosa, Sphingomonos paucibacillus, and Ochrobactrum quorumnocens in the discs with Modic changes, more than in non-Modic discs. The presence of bacterial metabolites and quorum-sensing molecules like N-decanoyl-L-homoserine lactone, 6-hydroxynicotinic acid, 2-aminoacetophenone, 4-hydroxy-3-polyprenylbenzoate, PE (16:1(9Z)/18:0) and phthalic acid validated the colonization and cell-cell communication of bacteria in disc ruling out contamination theory. Cutibacterium acnes was not the predominant bacteria in any of the three groups of discs and in fact was in the 16th position in the order of abundance in the control discs (0.72%), seventh position in the Modic discs (1.41%), and 12th position (0.53%) in the non-Modic discs. CONCLUSION This study identified a predominance of gram-negative bacteria in degenerated discs and highlights that Cutibacterium acnes may not be the only degeneration-causing bacteria. This may be attributed to the environment, diet, and lifestyle habits of the sample population. Though the study does not reveal the exact pathogen, it may pave the way for future studies on the subject. CLINICAL SIGNIFICANCE These findings invite further investigation into causal relationships of bacterial profile with disc degeneration phenotypes as well as phenotype-driven clinical treatment protocols.
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Affiliation(s)
- Shanmuganathan Rajasekaran
- Department of Spine Surgery, Ganga Hospital, 313, Mettupalayam Rd, Coimbatore, Tamil Nadu, 641043, India.
| | - Gowdaman Vasudevan
- Ganga Research Centre, SF No.442, Vattamalaipalayam, Rd, NGGO Colony Post, Coimbatore, Tamil Nadu, 641022, India
| | - Murugesh Easwaran
- Ganga Research Centre, SF No.442, Vattamalaipalayam, Rd, NGGO Colony Post, Coimbatore, Tamil Nadu, 641022, India
| | - Narmatha Devi Ps
- Ganga Research Centre, SF No.442, Vattamalaipalayam, Rd, NGGO Colony Post, Coimbatore, Tamil Nadu, 641022, India
| | - Sri Vijay Anand K S
- Department of Spine Surgery, Ganga Hospital, 313, Mettupalayam Rd, Coimbatore, Tamil Nadu, 641043, India
| | - Raveendran Muthurajan
- Department of Plant Biotechnology, Tamil Nadu Agricultural University, Lawley Rd, Coimbatore, Tamil Nadu, 641003, India
| | - Chitraa Tangavel
- Ganga Research Centre, SF No.442, Vattamalaipalayam, Rd, NGGO Colony Post, Coimbatore, Tamil Nadu, 641022, India
| | - Chandhan Murugan
- Department of Spine Surgery, Ganga Hospital, 313, Mettupalayam Rd, Coimbatore, Tamil Nadu, 641043, India
| | - Pushpa B T
- Department of Radiodiagnosis, Ganga Hospital, 313, Mettupalayam Rd, Coimbatore, Tamil Nadu, 641043, India
| | - Ajoy Prasad Shetty
- Department of Spine Surgery, Ganga Hospital, 313, Mettupalayam Rd, Coimbatore, Tamil Nadu, 641043, India
| | - Rishi Mugesh Kanna
- Department of Spine Surgery, Ganga Hospital, 313, Mettupalayam Rd, Coimbatore, Tamil Nadu, 641043, India
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Pushpa BT, Rajasekaran S, Easwaran M, Murugan C, Algeri R, Sri Vijay Anand KS, Mugesh Kanna R, Shetty AP. ISSLS PRIZE in basic science 2023: Lactate in lumbar discs-metabolic waste or energy biofuel? Insights from in vivo MRS and T2r analysis following exercise and nimodipine in healthy volunteers. Eur Spine J 2023; 32:1491-1503. [PMID: 36790504 DOI: 10.1007/s00586-023-07540-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/19/2022] [Revised: 10/19/2022] [Accepted: 01/13/2023] [Indexed: 02/16/2023]
Abstract
PURPOSE To quantitatively assess the dynamic changes of Lactate in lumbar discs under different physiological conditions using MRS and T2r. METHODS In step1, MRS and T2r sequences were standardized in 10 volunteers. Step2, analysed effects of high cellular demand. 66 discs of 20 volunteers with no back pain were evaluated pre-exercise (EX-0), immediately after targeted short-time low back exercises (EX-1) and 60 min after (EX-2). In Step 3, to study effects of high glucose and oxygen concentration, 50 lumbar discs in 10 volunteers were analysed before (D0) and after 10 days intake of the calcium channel blocker, nimodipine (D1). RESULTS Lactate showed a distinctly different response to exercise in that Grade 1 discs with a significant decrease in EX-1 and a trend for normalization in Ex-2. In contrast, Pfirrmann grade 2 and 3 and discs above 40 years showed a higher lactate relative to proteoglycan in EX-0, an increase in lactate EX-1 and mild dip in Ex-2. Similarly, following nimodipine, grade 1 discs showed an increase in lactate which was absent in grade 2 and 3 discs. In contrast, exercise and Nimodipine had no significant change in T2r values and MRS spectrum of proteoglycan, N-acetyl aspartate, carbohydrate, choline, creatine, and glutathione across age groups and Pfirrmann grades. CONCLUSION MRS documented changes in lactate response to cellular demand which suggested a 'Lactate Symbiotic metabolic Pathway'. The differences in lactate response preceded changes in Proteoglycan/hydration and thus could be a dynamic radiological biomarker of early degeneration.
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Affiliation(s)
- B T Pushpa
- Department of Radiodiagnosis, Ganga Hospital, 313, Mettupalayam Road, Coimbatore, India
| | - S Rajasekaran
- Department of Spine Surgery, Ganga Hospital, 313, Mettupalayam Road, Coimbatore, India.
| | - Murugesh Easwaran
- Ganga Research Centre, 187, Mettupalayam Road, Koundampalayam, Coimbatore, India
| | - Chandhan Murugan
- Department of Spine Surgery, Ganga Hospital, 313, Mettupalayam Road, Coimbatore, India
| | - Raksha Algeri
- Department of Radiodiagnosis, Ganga Hospital, 313, Mettupalayam Road, Coimbatore, India
| | - K S Sri Vijay Anand
- Department of Spine Surgery, Ganga Hospital, 313, Mettupalayam Road, Coimbatore, India
| | - Rishi Mugesh Kanna
- Department of Spine Surgery, Ganga Hospital, 313, Mettupalayam Road, Coimbatore, India
| | - Ajoy Prasad Shetty
- Department of Spine Surgery, Ganga Hospital, 313, Mettupalayam Road, Coimbatore, India
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Durairaj K, Balasubramanian B, Arumugam VA, Easwaran M, Park S, Issara U, Pushparaj K, Al-Dhabi NA, Arasu MV, Liu WC, Mousavi Khaneghah A. Biocompatibility of Veratric Acid-Encapsulated Chitosan/Methylcellulose Hydrogel: Biological Characterization, Osteogenic Efficiency with In Silico Molecular Modeling. Appl Biochem Biotechnol 2023:10.1007/s12010-023-04311-5. [PMID: 36701091 DOI: 10.1007/s12010-023-04311-5] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/05/2023] [Indexed: 01/27/2023]
Abstract
The limitations of graft material, and surgical sites for autografts in bone defects treatment have become a significant challenge in bone tissue engineering. Phytocompounds markedly affect bone metabolism by activating the osteogenic signaling pathways. The present study investigated the biocompatibility of the bio-composite thermo-responsive hydrogels consisting of chitosan (CS), and methylcellulose (MC) encapsulated with veratric acid (VA) as a restorative agent for bone defect treatment. The spectroscopy analyses confirmed the formation of CS/MC hydrogels and VA encapsulated CS/MC hydrogels (CS/MC-VA). Molecular analysis of the CS-specific MC decamer unit with VA complex exhibited a stable integration in the system. Further, Runx2 (runt-related transcription factor 2) was found in the docking mechanism with VA, indicating a high binding affinity towards the functional site of the Runx2 protein. The formulated CS/MC-VA hydrogels exhibited biocompatibility with the mouse mesenchymal stem cells, while VA promoted osteogenic differentiation in the stem cells, which was verified by calcium phosphate deposition through the von Kossa staining. The study results suggest that CS/MC-VA could be a potential therapeutic alternative source for bone regeneration.
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Affiliation(s)
- Kaliannan Durairaj
- Department of Environmental Science, School of Life Sciences, Periyar University, Salem, 636 011, India. .,Zoonosis Research Center, Department of Infection Biology, School of Medicine, Wonkwang University, 54538, Iksan, Republic of Korea.
| | | | - Vijaya Anand Arumugam
- Department of Human Genetics and Molecular Biology, Bharathiar University, Coimbatore- 641 046, Tamil Nadu, India
| | - Murugesh Easwaran
- Computational Biology Lab, Department of Bioinformatics, Bharathiar University, Coimbatore-46, Tamil Nadu, India, 641046
| | - Sungkwon Park
- Department of Food Science and Biotechnology, College of Life Science, Sejong University, Seoul, 05006, South Korea
| | - Utthapon Issara
- Division of Food Science and Technology Management, Faculty of Science and Technology, Rajamangala University of Technology Thanyaburi, Khlong Hok, 12110, Thailand
| | - Karthika Pushparaj
- Department of Zoology, School of Biosciences, Avinashilingam Institute for Home Science and Higher Education for Women, Coimbatore, 641 043, Tamil Nadu, India
| | - Naif Abdullah Al-Dhabi
- Department of Botany and Microbiology, College of Science, King Saud University, P.O. Box 2455, Riyadh, 11451, Saudi Arabia
| | - Mariadhas Valan Arasu
- Department of Botany and Microbiology, College of Science, King Saud University, P.O. Box 2455, Riyadh, 11451, Saudi Arabia
| | - Wen-Chao Liu
- Department of Animal Science, College of Agriculture, Guangdong Ocean University, Zhanjiang, Guangdong, 524088, People's Republic of China
| | - Amin Mousavi Khaneghah
- Department of Fruit and Vegetable Product Technology, Prof. Wacław Dąbrowski Institute of Agricultural and Food Biotechnology - State Research Institute, 36 Rakowiecka St., 02-532, Warsaw, Poland. .,Department of Technology of Chemistry, Azerbaijan State Oil and Industry University, Baku, Azerbaijan.
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Pushparaj K, Kuchi Bhotla H, Arumugam VA, Pappusamy M, Easwaran M, Liu WC, Issara U, Rengasamy KRR, Meyyazhagan A, Balasubramanian B. Mucormycosis (black fungus) ensuing COVID-19 and comorbidity meets - Magnifying global pandemic grieve and catastrophe begins. Sci Total Environ 2022; 805:150355. [PMID: 34818767 PMCID: PMC8443313 DOI: 10.1016/j.scitotenv.2021.150355] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/23/2021] [Revised: 07/25/2021] [Accepted: 09/11/2021] [Indexed: 05/02/2023]
Abstract
Post COVID-19, mucormycosis occurred after the SARS-CoV-2 has rampaged the human population and is a scorching problem among the pandemic globally, particularly among Asian countries. Invasive mucormycosis has been extensively reported from mild to severe COVID-19 survivors. The robust predisposing factor seems to be uncontrolled diabetes mellitus, comorbidity and immunosuppression acquired through steroid therapy. The prime susceptive reason for the increase of mucormycosis cases is elevated iron levels in the serum of the COVID survivors. A panoramic understanding of the infection has been elucidated based on clinical manifestation, genetic and non- genetic mechanisms of steroid drug administration, biochemical pathways and immune modulated receptor associations. This review lime-lights and addresses the "What", "Why", "How" and "When" about the COVID-19 associated mucormycosis (CAM) in a comprehensive manner with a pure intention to bring about awareness to the common public as the cases are inevitably and exponentially increasing in India and global countries as well. The article also unearthed the pathogenesis of mucormycosis and its association with the COVID-19 sequela, the plausible routes of entry, diagnosis and counter remedies to keep the infection at bay. Cohorts of case reports were analysed to spotlight the link between the pandemic COVID-19 and the nightmare-mucormycosis.
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Affiliation(s)
- Karthika Pushparaj
- Department of Zoology, School of Biosciences, Avinashilingam Institute for Home Science and Higher Education for Women, Coimbatore 641 043, Tamil Nadu, India
| | - Haripriya Kuchi Bhotla
- Department of Life Science, CHRIST (Deemed to be University), Bengaluru, Karnataka 560076, India
| | - Vijaya Anand Arumugam
- Department of Human Genetics and Molecular Biology, Bharathiar University, Coimbatore 641 046, Tamil Nadu, India
| | - Manikantan Pappusamy
- Department of Life Science, CHRIST (Deemed to be University), Bengaluru, Karnataka 560076, India
| | - Murugesh Easwaran
- International Centre for Genetic Engineering and Biotechnology, New Delhi 110067, India
| | - Wen-Chao Liu
- Department of Animal Science, College of Coastal Agricultural Sciences, Guangdong Ocean University, Zhanjiang 524088, PR China
| | - Utthapon Issara
- Division of Food Science and Technology Management, Faculty of Science and Technology, Rajamangala University of Technology Thanyaburi, Pathum Thani 12110, Thailand
| | - Kannan R R Rengasamy
- Green Biotechnologies Research Centre of Excellence, University of Limpopo, Private Bag X1106, Polokwane, Sovenga 0727, South Africa
| | - Arun Meyyazhagan
- Department of Life Science, CHRIST (Deemed to be University), Bengaluru, Karnataka 560076, India.
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Meyyazhagan A, Pushparaj K, Balasubramanian B, Kuchi Bhotla H, Pappusamy M, Arumugam VA, Easwaran M, Pottail L, Mani P, Tsibizova V, Di Renzo GC. COVID-19 in pregnant women and children: Insights on clinical manifestations, complexities, and pathogenesis. Int J Gynaecol Obstet 2021; 156:216-224. [PMID: 34735717 PMCID: PMC9087615 DOI: 10.1002/ijgo.14007] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2021] [Revised: 10/27/2021] [Accepted: 11/02/2021] [Indexed: 12/16/2022]
Abstract
Pregnancy changes the body's immune system to counteract the spectrum of infections, including COVID-19, which can pose complications. Pregnant women are less likely to contract COVID-19 infections than the general public. However, pregnant women are at slightly increased risk of becoming severely unwell if they do catch COVID-19, and congenital conditions in pregnant women may worsen the state of infection and lead to critical stages and even mortality. The possibility of vertical transmission has been reported in only a few cases of COVID-19; however, it was not noted in cases of SARS and MERS. Vaccination coverage in pregnant women remains a challenge. Children are the next suspected and vulnerable population to acquire infection after the first and second waves. Children are disproportionately infected compared with older populations, but the severity of infection is less compared to adults. This review highlights the complexities of COVID-19 in pregnant women and the underlying reasons why children tend to be comparatively less severely affected. Ethnicity, nutrition, lifestyle, and therapeutics influence the severity of infection in children. Low expression of angiotensin-converting enzyme 2 receptors, indigenous virus competence, and maternal immunity is the first-line defense for children against COVID-19. Habituating herbal medicines from childhood may help support a robust and defensive immune system to counteract novel antigens and encourage healthy generations.
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Affiliation(s)
- Arun Meyyazhagan
- Department of Obstetrics and Gynecology and Centre for Perinatal and Reproductive Medicine, University of Perugia, Perugia, Italy.,Department of Life Sciences, CHRIST (Deemed to be University), Bengaluru, Karnataka, India
| | - Karthika Pushparaj
- Department of Zoology, Avinashilingam Institute for Home Science and Higher Education for Women, Coimbatore, Tamil Nadu, India
| | | | - Haripriya Kuchi Bhotla
- Department of Life Sciences, CHRIST (Deemed to be University), Bengaluru, Karnataka, India
| | - Manikantan Pappusamy
- Department of Life Sciences, CHRIST (Deemed to be University), Bengaluru, Karnataka, India
| | - Vijaya Anand Arumugam
- Medical Genetics and Epigenetics Laboratory, Department of Human Genetics and Molecular Biology, Bharathiar University, Coimbatore, Tamil Nadu, India
| | - Murugesh Easwaran
- Nutritional Improvement of Crops, International Centre for Genetic Engineering and Biotechnology, New Delhi, India
| | - Lalitha Pottail
- Department of Chemistry, School of Physical and Computational Sciences, Avinashilingam Institute for Home Science and Higher Education for Women, Coimbatore, Tamil Nadu, India
| | - Poonkothai Mani
- Department of Zoology, Avinashilingam Institute for Home Science and Higher Education for Women, Coimbatore, Tamil Nadu, India
| | - Valentina Tsibizova
- Institute of Perinatology and Pediatrics, Almazov National Medical Research Centre, Saint Petersburg, Russian Federation
| | - Gian Carlo Di Renzo
- Department of Obstetrics and Gynecology and Centre for Perinatal and Reproductive Medicine, University of Perugia, Perugia, Italy
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9
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Kuchi Bhotla H, Balasubramanian B, Meyyazhagan A, Pushparaj K, Easwaran M, Pappusamy M, Alwin Robert A, Arumugam VA, Tsibizova V, Msaad Alfalih A, Aljowaie RM, Saravanan M, Di Renzo GC. Opportunistic mycoses in COVID-19 patients/survivors: Epidemic inside a pandemic. J Infect Public Health 2021; 14:1720-1726. [PMID: 34700291 PMCID: PMC8518133 DOI: 10.1016/j.jiph.2021.10.010] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2021] [Revised: 10/06/2021] [Accepted: 10/10/2021] [Indexed: 12/30/2022] Open
Abstract
Being considered minor vexations, fungal infections hinder the life of about 15% of the world population superficially, with rare threats to life in case of invasive sepsis. A significant rise in the intrusive mycoses due to machiavellian fungal species is observed over the years due to increased pathology and fatality in people battling life-threatening diseases. Individuals undergoing therapy with immune suppressive drugs plus recovering from viral infections have shown to develop fungal sepsis as secondary infections while recovering or after. Currently, the whole world is fighting against the fright of Coronavirus disease (COVID-19), and corticosteroids being the primitive therapeutic to combat the COVID-19 inflammation, leads to an immune-compromised state, thereby allowing the not so harmful fungi to violate the immune barrier and flourish in the host. A wide range of fungal co-infection is observed in the survivors and patients of COVID-19. Fungal species of Candida, Aspergillus and Mucorales, are burdening the lives of COVID-19 patients/survivors in the form of Yellow/Green, White and Black fungus. This is the first article of its kind to assemble note on fungal infections seen in the current human health scenario till date and provides a strong message to the clinicians, researchers and physicians around the world "non-pathological fungus should not be dismissed as contaminants, they can quell immunocompromised hosts".
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Affiliation(s)
- Haripriya Kuchi Bhotla
- Department of Life Sciences, CHRIST (Deemed to be University), Bengaluru, 560029 Karnataka, India
| | | | - Arun Meyyazhagan
- Department of Life Sciences, CHRIST (Deemed to be University), Bengaluru, 560029 Karnataka, India; Department of Obstetrics and Gynecology, Centre for Perinatal and Reproductive Medicine, University of Perugia, Perugia, Italy.
| | - Karthika Pushparaj
- Department of Zoology, School of Biosciences, Avinashilingam Institute for Home Science and Higher Education for Women, Coimbatore, 641 043, Tamil Nadu, India
| | - Murugesh Easwaran
- Computational Biology Lab, Department of Bioinformatics, Bharathiar University, Coimbatore, Tamil Nadu 641 046, India
| | - Manikantan Pappusamy
- Department of Life Sciences, CHRIST (Deemed to be University), Bengaluru, 560029 Karnataka, India
| | - Asirvatham Alwin Robert
- Department of Endocrinology and Diabetes, Prince Sultan Military Medical City, Riyadh, Saudi Arabia
| | - Vijaya Anand Arumugam
- Medical Genetics and Epigenetics Laboratory, Department of Human Genetics and Molecular Biology, Bharathiar University, Coimbatore, 641046, Tamil Nadu, India
| | - Valentina Tsibizova
- Institute of Perinatology and Pediatrics, Almazov National Medical Research Centre, Saint-Petersburg, Russian Federation
| | - Abdullah Msaad Alfalih
- Department of Botany and Microbiology, College of Science, King Saud University, P.O Box 24552, 11495, Riyadh, Saudi Arabia
| | - Reem M Aljowaie
- Department of Botany and Microbiology, College of Science, King Saud University, P.O Box 24552, 11495, Riyadh, Saudi Arabia
| | - Muthupandian Saravanan
- Department of Microbiology and Immunology, Division of Biomedical Sciences, School of Medicine, College of Health Science, Mekelle University, Mekelle, 1871, Ethiopia; Department of Pharmacology, Saveetha Institute of Medical and Technical Sciences (SIMATS), Saveetha Dental College, 600077, Chennai, Tamil Nadu, India.
| | - Gian Carlo Di Renzo
- Department of Obstetrics and Gynecology, Centre for Perinatal and Reproductive Medicine, University of Perugia, Perugia, Italy.
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10
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Pappuswamy M, Meyyazhagan A, Balasubramanian B, Bhotla HK, Pushparaj K, Easwaran M, Arumugam VA, Periyaswamy T, Dhandapani K. Carcinogens in Food: Evaluating the Presence of Cadmium, Lead, in Poultry Meat in South India. Asian Pac J Cancer Prev 2021; 22:3507-3511. [PMID: 34837906 PMCID: PMC9068166 DOI: 10.31557/apjcp.2021.22.11.3507] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2021] [Indexed: 11/25/2022] Open
Abstract
Objective: Local chickens were spontaneously sampled and slaughtered in the central markets of Coimbatore, Erode, and Namakkal districts, South India. Materials and Methods: Wet digestion was used to extract lead (Pb), cadmium (Cd), and zinc (Zn) in their blood and selected different organs (intestine, breast, liver, and gizzard), and their concentrations were measured using an atomic absorption spectrophotometer. Results: Apart from the blood of chickens from Coimbatore and Namakkal, where Pb was not found, the concentrations of Pb in the blood and organs of chickens from the three towns ranged from 1.8 to 8.33 mg/kg, exceeding the maximum tolerance thresholds (0.1 mg/kg) in internal organs of poultry birds. Except for the intestine of chickens from the three areas, Cd was only found in the heart, blood, and gizzard of Erode chickens, as well as the liver and gizzard of Namakkal chickens, in concentrations ranging from 0.13 to 0.58. According to threshold level, the upper limit met the maximum limits (0.5 mg/kg). Zn was found in all sections of chickens from the three selected districts, with concentrations ranging from 4.96 to 174.17 mg/kg. Conclusion: Its concentrations were within the permissible limits (10-50 mg/kg) in some areas of certain chickens, but it surpassed the permissible limit in the liver of chicken from Coimbatore. Any organs and blood from local chickens sold in Coimbatore, Erode, and Namakkal areas can be hazardous to one’s health.
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Affiliation(s)
- Manikantan Pappuswamy
- Departmen of Life Sciences, CHRIST (Deemed to be University), Bangalore, Karnataka, India
| | - Arun Meyyazhagan
- Departmen of Life Sciences, CHRIST (Deemed to be University), Bangalore, Karnataka, India
| | | | | | - Karthika Pushparaj
- Department of Zoology, School of Bioscience, Avinashilingam Institute for Home Sciences and Higher Education for Women , Coimbatore, Tamil Nadu, India
| | - Murugesh Easwaran
- Computational Biology Laboratory, Department of Bioinformatics, Bharathiar University, Coimbatore-641046, Tamil Nadu, India
| | - Vijaya Anand Arumugam
- Department of Human Genetics and Molecular Biology, Bharathiar University, Coimbatore, Tamil Nadu, India
| | | | - Karthick Dhandapani
- School of Engineering, Shanghai Jiao Tong University, Shanghai 200241, China
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11
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Thangamani L, Balasubramanian B, Easwaran M, Natarajan J, Pushparaj K, Meyyazhagan A, Piramanayagam S. GalNAc-siRNA conjugates: Prospective tools on the frontier of anti-viral therapeutics. Pharmacol Res 2021; 173:105864. [PMID: 34474100 PMCID: PMC8405237 DOI: 10.1016/j.phrs.2021.105864] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/03/2021] [Revised: 08/27/2021] [Accepted: 08/27/2021] [Indexed: 12/19/2022]
Abstract
The growing use of short-interfering RNA (siRNA)-based therapeutics for viral diseases reflects the most recent innovations in anti-viral vaccines and drugs. These drugs play crucial roles in the fight against many hitherto incurable diseases, the causes, pathophysiologies, and molecular processes of which remain unknown. Targeted liver drug delivery systems are in clinical trials. The receptor-mediated endocytosis approach involving the abundant asialoglycoprotein receptors (ASGPRs) on the surfaces of liver cells show great promise. We here review N-acetylgalactosamine (GalNAc)-siRNA conjugates that treat viral diseases such as hepatitis B infection, but we also mention that novel, native conjugate-based, targeted siRNA anti-viral drugs may also cure several life-threatening diseases such as hemorrhagic cystitis, multifocal leukoencephalopathy, and severe acute respiratory syndrome caused by coronaviruses and human herpes virus.
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Affiliation(s)
- Lokesh Thangamani
- Computational Biology Lab, Department of Bioinformatics, Bharathiar University, Coimbatore 641046, Tamil Nadu, India
| | | | - Murugesh Easwaran
- International Centre for Genetic Engineering and Biotechnology, New Delhi 110067, India
| | - Jeyakumar Natarajan
- Data Mining and Text Mining Laboratory, Department of Bioinformatics, Bharathiar University, Coimbatore 641046, Tamil Nadu, India
| | - Karthika Pushparaj
- Department of Zoology, School of Biosciences, Avinashilingam Institute for Home Science and Higher Education for Women, Coimbatore 641043, Tamil Nadu, India
| | - Arun Meyyazhagan
- Department of Life Sciences, CHRIST (Deemed to be University), Bengaluru 560029, Karnataka, India.
| | - Shanmughavel Piramanayagam
- Computational Biology Lab, Department of Bioinformatics, Bharathiar University, Coimbatore 641046, Tamil Nadu, India.
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12
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Meyyazhagan A, Balasubramanian B, Bhotla HK, Easwaran M, Shanmugam S, Alagamuthu KK, Arumugam VA, Keshavarao S, Pappusamy M. Genetic and cytogenetic screening of autistic spectrum disorder: Genotype-phenotype profiles. Meta Gene 2021. [DOI: 10.1016/j.mgene.2021.100924] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022] Open
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13
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Cittrarasu V, Kaliannan D, Dharman K, Maluventhen V, Easwaran M, Liu WC, Balasubramanian B, Arumugam M. Green synthesis of selenium nanoparticles mediated from Ceropegia bulbosa Roxb extract and its cytotoxicity, antimicrobial, mosquitocidal and photocatalytic activities. Sci Rep 2021; 11:1032. [PMID: 33441811 PMCID: PMC7806947 DOI: 10.1038/s41598-020-80327-9] [Citation(s) in RCA: 79] [Impact Index Per Article: 26.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2020] [Accepted: 12/18/2020] [Indexed: 12/14/2022] Open
Abstract
The present study is to design an eco-friendly mode to rapidly synthesize selenium nanoparticles (SeNPs) through Ceropegia bulbosa tuber's aqueous extracts and confirming SeNPs synthesis by UV-Vis spectroscopy, FT-IR, XRD, FE-SEM-EDS mapping, HR-TEM, DLS and zeta potential analysis. In addition, to assess the anti-cancer efficacy of the SeNPs against the cultured MDA-MB-231, as studies have shown SeNPs biosynthesis downregulates the cancer cells when compared to normal HBL100 cell lines. The study observed the IC50 value of SeNPs against MDA-MB-231 cells was 34 µg/mL for 48 h. Furthermore, the SeNPs promotes growth inhibitory effects of certain clinical pathogens such as Bacillus subtilis and Escherichia coli. Apart, from this the SeNPs has shown larvicidal activity after 24 h exposure in Aedes albopitus mosquito's larvae with a maximum of 250 g/mL mortality concentration. This is confirmed by the histopathology results taken at the 4th larval stage. The histopathological studies revealed intense deterioration in the hindgut, epithelial cells, mid gut and cortex region of the larvae. Finally, tried to investigate the photocatalytic activity of SeNPs against the toxic dye, methylene blue using halogen lamp and obtained 96% degradation results. Withal computational study SeNPs was shown to exhibit consistent stability towards breast cancer protein BRCA2. Overall, our findings suggest SeNPs as a potent disruptive agent for MDA-MB-231 cells, few pathogens, mosquito larvae and boosts the photocatalytic dye degradation.
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Affiliation(s)
- Vetrivel Cittrarasu
- Ethnopharmacology and Algal Biotechnology Division, Department of Botany, School of Life Sciences, Periyar University, Salem, Tamil Nadu, 636011, India
| | - Durairaj Kaliannan
- Department of Environmental Science, School of Life Sciences, Periyar University, Salem, Tamil Nadu, 636011, India.,Zoonosis Research Center, Department of Infection Biology, School of Medicine, Wonkwang University, Iksan, 54538, South Korea
| | - Kalaimurugan Dharman
- Department of Environmental Science, School of Life Sciences, Periyar University, Salem, Tamil Nadu, 636011, India
| | - Viji Maluventhen
- Department of Botany, Thiagarajar College, Madurai, Tamil Nadu, 625 099, India
| | - Murugesh Easwaran
- Nutritional Improvement of Crops, International Centre for Genetic Engineering and Biotechnology, New Delhi, 110067, India
| | - Wen Chao Liu
- Department of Animal Science, College of Coastal Agricultural Sciences, Guangdong Ocean University, Zhanjiang, 524088, P. R. China.
| | | | - Maruthupandian Arumugam
- Ethnopharmacology and Algal Biotechnology Division, Department of Botany, School of Life Sciences, Periyar University, Salem, Tamil Nadu, 636011, India.
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14
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Kuchi Bhotla H, Kaul T, Balasubramanian B, Easwaran M, Arumugam VA, Pappusamy M, Muthupandian S, Meyyazhagan A. Platelets to surrogate lung inflammation in COVID-19 patients. Med Hypotheses 2020; 143:110098. [PMID: 32688185 PMCID: PMC7354257 DOI: 10.1016/j.mehy.2020.110098] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2020] [Revised: 07/01/2020] [Accepted: 07/09/2020] [Indexed: 12/23/2022]
Abstract
The neoteric severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) has been jeopardizing the world with the symptoms of seasonal flu. The virus contagion predicted to have been originated from Wuhan, China has by far trapped 4,198,418 cases from 212 countries in the world with two international conveyances with 284,102 deaths as of 11 May 2020 (10:18 GMT). Researchers around the globe have indulged in deciphering viral mode in the body for devising a cure. Affirmations from autopsies and preliminary findings on SARS-CoV-2 hypothesized on viral pathogenesis within the host, for instance, source of inflammation in lungs and pneumonia. This hypothesis assigns the platelets as agents of infection after viral entry. Presently, curbing infection to stall the spread of SARS-CoV-2 is the prima facie intervention employed, worldwide. However, public health authorities must monitor the state of affairs scrupulously, as the deeper our understanding of this novel virus and its associated outbreak, the better we can deal with it. Knowing this idea might be far-fetched, yet this postulate would serve as the groundwork for the present situation.
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Affiliation(s)
| | - Tanushri Kaul
- Nutritional Improvement of Crops, International Centre for Genetic Engineering and Biotechnology, New Delhi 110067, India.
| | | | - Murugesh Easwaran
- Nutritional Improvement of Crops, International Centre for Genetic Engineering and Biotechnology, New Delhi 110067, India
| | - Vijaya Anand Arumugam
- Medical Genetics and Epigenetics Laboratory, Department of Human Genetics and Molecular Biology, Bharathiar University, Coimbatore, Tamil Nadu, India
| | - Manikantan Pappusamy
- Department of Life Sciences, CHRIST (Deemed to be University), Bengaluru 560029 (Karnataka), India
| | - Saravanan Muthupandian
- Department of Medical Microbiology and Immunology, Division of Biomedical Sciences, School of Medicine, College of Health Sciences, Mekelle University, Mekelle 1871, Ethiopia
| | - Arun Meyyazhagan
- Department of Life Sciences, CHRIST (Deemed to be University), Bengaluru 560029 (Karnataka), India; Euroespes Biomedical Research Centre, International Centre of Neuroscience and Genomic Medicine, 15165 Corunna, Spain.
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15
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Meyyazhagan A, Balasubramanian B, Easwaran M, Alagamuthu KK, Shanmugam S, Kuchi Bhotla H, Pappusamy M, Arumugam VA, Thangaraj A, Kaul T, Keshavarao S, Cacabelos R. Biomarker study of the biological parameter and neurotransmitter levels in autistics. Mol Cell Biochem 2020; 474:277-284. [PMID: 32740790 DOI: 10.1007/s11010-020-03851-2] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2020] [Accepted: 07/20/2020] [Indexed: 01/04/2023]
Abstract
Autism is a prevalent developmental disorder that combines repetitive behaviours, social deficits and language abnormalities. The present study aims to assess the autistic subjects using DSM IV-TR criteria followed with the analysis of neurotransmitters, biochemical parameters, oxidative stress and its ions in two groups of autistic subjects (group I < 12 years; group II ≥ 12 years). Antioxidants show a variation of 10% increase in controls compared to autistic age < 12 years. The concentration of pyruvate kinase and hexokinase is elevated in controls approximately 60% and 45%, respectively, with the significance of 95 and 99%. Autistic subjects showed marked variation in levels of neurotransmitters, oxidative stress and its related ions. Cumulative assessment of parameters related to biochemical markers and neurotransmitters paves the way for autism-based research, although these observations draw interest in an integrated approach for autism.
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Affiliation(s)
- Arun Meyyazhagan
- EuroEspes Biomedical Research Centre, International Center of Neurosciences and Genomic Medicine, Bergondo, 15165, Corunna, Spain. .,Human Genetics Laboratory, Department of Zoology, School of Life Sciences, Bharathiar University, Coimbatore, Tamil Nadu, 641046, India. .,Department of Life Sciences, CHRIST (Deemed to be University), Bengaluru, Karnataka, 560029, India.
| | - Balamuralikrishnan Balasubramanian
- Human Genetics Laboratory, Department of Zoology, School of Life Sciences, Bharathiar University, Coimbatore, Tamil Nadu, 641046, India.,Department of Food Science and Biotechnology, College of Life Science, Sejong University, Seoul, 05006, South Korea
| | - Murugesh Easwaran
- Nutritional Improvement of Crops, International Centre for Genetic Engineering and Biotechnology, New Delhi, 110067, India
| | - Karthick Kumar Alagamuthu
- Human Genetics Laboratory, Department of Zoology, School of Life Sciences, Bharathiar University, Coimbatore, Tamil Nadu, 641046, India.,Jiagsu Key Laboratory for Molecular and Medical Biotechnology, College of Life Science, Nanjing Normal University, Nanjing, 210023, China
| | - Sureshkumar Shanmugam
- Human Genetics Laboratory, Department of Zoology, School of Life Sciences, Bharathiar University, Coimbatore, Tamil Nadu, 641046, India.,Department of Animal Resource and Science, Dankook University, Cheonan, 31116, South Korea
| | - Haripriya Kuchi Bhotla
- Human Genetics Laboratory, Department of Zoology, School of Life Sciences, Bharathiar University, Coimbatore, Tamil Nadu, 641046, India
| | - Manikantan Pappusamy
- Department of Life Sciences, CHRIST (Deemed to be University), Bengaluru, Karnataka, 560029, India
| | - Vijaya Anand Arumugam
- Medical Genetics and Epigenetics Laboratory, Department of Human Genetics and Molecular Biology, Bharathiar University, Coimbatore, Tamil Nadu, 641046, India
| | - Arulprakash Thangaraj
- Nutritional Improvement of Crops, International Centre for Genetic Engineering and Biotechnology, New Delhi, 110067, India
| | - Tanushri Kaul
- Nutritional Improvement of Crops, International Centre for Genetic Engineering and Biotechnology, New Delhi, 110067, India
| | - Sasikala Keshavarao
- Human Genetics Laboratory, Department of Zoology, School of Life Sciences, Bharathiar University, Coimbatore, Tamil Nadu, 641046, India
| | - Ramon Cacabelos
- EuroEspes Biomedical Research Centre, International Center of Neurosciences and Genomic Medicine, Bergondo, 15165, Corunna, Spain
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16
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Anbuselvam M, Easwaran M, Meyyazhagan A, Anbuselvam J, Bhotla HK, Sivasubramanian M, Annadurai Y, Kaul T, Pappusamy M, Balasubramanian B. Structure-based virtual screening, pharmacokinetic prediction, molecular dynamics studies for the identification of novel EGFR inhibitors in breast cancer. J Biomol Struct Dyn 2020; 39:4462-4471. [PMID: 32567493 DOI: 10.1080/07391102.2020.1777899] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Abstract
Breast cancer is one of the most prevalent malignancy cancer types especially affecting women globally. EGFR is a proto onco gene as well as the first identified tyrosine kinase receptor. It plays a dynamic role in many biological tasks such as apoptosis, cell cycle progression, differentiation, development and transcription. Somatic mutation in the EGFR kinase domain derails the normal kinase activity and over expression leads to the progression of cancer especially breast cancer. EGFR is one of the well-known therapeutic targets for breast cancer. In this scenario, we attempt to identify novel potent inhibitors of EGFR. Initially, we performed structure-based virtual screening and identified four potential compounds effective against EGFR. Further, the compounds were subjected to ADME prediction as part of evaluation of the druggability and all the four compounds found to fall under satisfactory range with predicted pharmacokinetic properties. Eventually, the conformational stability of protein-ligand complex was analyzed at different time scale by using Gromacs software. Molecular dynamics simulation run of 20 ns is carried out and results were analyzed using root mean square deviation (RMSD), root mean square fluctuation (RMSF) to signify the stability of protein-igand complex. The stability of the protein-ligand complex is more stable throughout entire simulation. From the results obtained from in silico studies, we propose that these compounds are exceptionally useful for further lead optimization and drug development.Communicated by Ramaswamy H. Sarma.
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Affiliation(s)
- Mohan Anbuselvam
- Department of Biotechnology, Selvamm College of Arts and Science (Autonomous), Namakkal, India
| | - Murugesh Easwaran
- Nutritional Improvement of Crops International Centre for Genetic Engineering and Biotechnology, New Delhi, India
| | | | - Jeeva Anbuselvam
- Department of Animal Science, Bharathidasan University, Tiruchirappalli, India
| | | | | | - Yamuna Annadurai
- Department of Animal Science, Bharathidasan University, Tiruchirappalli, India
| | - Tanushri Kaul
- Nutritional Improvement of Crops International Centre for Genetic Engineering and Biotechnology, New Delhi, India
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17
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Poochi SP, Easwaran M, Balasubramanian B, Anbuselvam M, Meyyazhagan A, Park S, Bhotla HK, Anbuselvam J, Arumugam VA, Keshavarao S, Kanniyappan GV, Pappusamy M, Kaul T. Employing bioactive compounds derived from Ipomoea obscura (L.) to evaluate potential inhibitor for SARS-CoV-2 main protease and ACE2 protein. Food Front 2020; 1:168-179. [PMID: 32838301 PMCID: PMC7361879 DOI: 10.1002/fft2.29] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2020] [Revised: 06/12/2020] [Accepted: 06/15/2020] [Indexed: 11/13/2022] Open
Abstract
Angiotensin converting enzyme 2 (ACE2) and main protease (MPro) are significant target proteins, mainly involved in the attachment of viral genome to host cells and aid in replication of severe acute respiratory syndrome-coronaviruses or SARS-CoV genome. In the present study, we identified 11 potent bioactive compounds from ethanolic leaf extract of Ipomoea obscura (L.) by using GC-MS analysis. These potential bioactive compounds were considered for molecular docking studies against ACE2 and MPro target proteins to determine the antiviral effects against SARS-COV. Results exhibits that among 11 compounds from I. obscura (L.), urso-deoxycholic acid, demeclocycline, tetracycline, chlorotetracycline, and ethyl iso-allocholate had potential viral inhibitory activity. Hence, the present findings suggested that chemical constitution present in I. obscura (L.) will address inhibition of corona viral replication in host cells.
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Affiliation(s)
- Saravana Prabha Poochi
- Department of Biochemistry and BioinformaticsKarpagam Academy of Higher EducationCoimbatore641021India
| | - Murugesh Easwaran
- Nutritional Improvement of CropsInternational Centre for Genetic Engineering and BiotechnologyNew Delhi110067India
| | | | - Mohan Anbuselvam
- Department of BiotechnologySelvamm College of Arts and ScienceNamakkal637003India
| | - Arun Meyyazhagan
- Euroespes Biomedical Research CentreInternational Centre of Neuroscience and Genomic MedicineCorunna15165Spain
- Department of Life SciencesChrist (Deemed to be University)Bangalore560029India
| | - Sungkwon Park
- Department of Food Science and BiotechnologyCollege of Life ScienceSejong UniversitySeoul05006Republic of Korea
| | - Haripriya Kuchi Bhotla
- Department of MedicineSection of Internal and Cardiovascular MedicineUniversity of PerugiaPerugiaItaly
| | - Jeeva Anbuselvam
- Department of Animal ScienceBharathidasan UniversityTiruchirappalli620024India
| | - Vijaya Anand Arumugam
- Medical Genetics and Epigenetics LaboratoryDepartment of Human Genetics and Molecular BiologyBharathiar UniversityCoimbatoreTamil NaduIndia
| | - Sasikala Keshavarao
- Professor and Emeritus (Rtd.)Human Genetics LaboratoryDepartment of ZoologySchool of Life SciencesBharathiar UniversityCoimbatoreTamil Nadu46India
| | | | | | - Tanushri Kaul
- Nutritional Improvement of CropsInternational Centre for Genetic Engineering and BiotechnologyNew Delhi110067India
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18
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Palanivel H, Easwaran M, Meena A, Chandrasekaran S, Abdul Kader M, Murali A. Structural dynamics and modeling of curcin protein: docking against pterin derivatives. SN Appl Sci 2019. [DOI: 10.1007/s42452-019-0752-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
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19
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Sabarinathan D, Chandrika SP, Venkatraman P, Easwaran M, Sureka CS, Preethi K. Production of polyhydroxybutyrate (PHB) from Pseudomonas plecoglossicida and its application towards cancer detection. Informatics in Medicine Unlocked 2018. [DOI: 10.1016/j.imu.2018.04.009] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023] Open
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20
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Meyyazhagan A, Raman NM, Easwaran M, Balasubramanian B, Alagamuthu K, Bhotla HK, Shanmugam S, Inbaraj K, Ramesh Kumar M, Kumar P, Thangamani L, Piramanayagam S, Anand V, Mohd Y, Park S, Teijido O, Carril J, Cacabelos P, Keshavarao S, Cacabelos R. Biochemistry, Cytogenetics and DMD Gene Mutations in South Indian Patients with Duchenne Muscular Dystrophy. INT J HUM GENET 2017. [DOI: 10.1080/09723757.2017.1387381] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
- A. Meyyazhagan
- EuroEspes Biomedical Research Center, Institute of Medical Science and Genomic Medicine, Corunna, Spain
- Genomic Medicine, Continental University Medical School, Huancayo, Peru 3Human Genetics Laboratory, Department of Zoology, School of Life Sciences, Bharathiar University, Bharathiar 641 046, Tamil Nadu, India
| | - N. M. Raman
- Department of Biotechnology, Dr. G. R. Damodaran College of Arts and Science, Coimbatore, Tamil Nadu, India
| | - M. Easwaran
- Department of Bioinformatics, Computational Biology Laboratory, Bharathiar University, Bharathiar 641 046, Tamil Nadu, India
| | - B. Balasubramanian
- Department of Food Science and Biotechnology, College of Life Science, Sejong University, 209 Neundong-ro, Gwangjin-gu, Seoul-05006, South Korea
| | - K. Alagamuthu
- College of Life Science, Nanjing Normal University, No.1 Wenyuan Road, Qixia District, Nanjing, Jiangsu Province-210023, China
| | - H. Kuchi Bhotla
- Genomic Medicine, Continental University Medical School, Huancayo, Peru 3Human Genetics Laboratory, Department of Zoology, School of Life Sciences, Bharathiar University, Bharathiar 641 046, Tamil Nadu, India
| | - S. Shanmugam
- Laboratory of Muscle Biology and Meat Science, Department of Animal Science, Chonbuk National University, 664-14 Duckjin-dong 1Ga, Jeonju City, Jeonbuk 561-756, South Korea
| | - K. Inbaraj
- Department of Conservation Biology, Bharathiar University, Bharathiar 641046, Tamil Nadu, India
| | - M. Ramesh Kumar
- Department of surgery, KMCH Hospital, Coimbatore, Tamil Nadu, India
| | - P. Kumar
- Department of Bioinformatics, Computational Biology Laboratory, Bharathiar University, Bharathiar 641 046, Tamil Nadu, India
| | - L. Thangamani
- Department of Bioinformatics, Computational Biology Laboratory, Bharathiar University, Bharathiar 641 046, Tamil Nadu, India
| | - S. Piramanayagam
- Department of Bioinformatics, Computational Biology Laboratory, Bharathiar University, Bharathiar 641 046, Tamil Nadu, India
| | - V. Anand
- Medical Genetics and Epigenetics Laboratory, Department of Human Genetics and Molecular Biology, School of Life Sciences, Bharathiar University, Bharathiar 641 046, Tamil Nadu, India
| | - Y. Mohd
- Medical Genetics and Epigenetics Laboratory, Department of Human Genetics and Molecular Biology, School of Life Sciences, Bharathiar University, Bharathiar 641 046, Tamil Nadu, India
| | - S. Park
- Department of Food Science and Biotechnology, College of Life Science, Sejong University, 209 Neundong-ro, Gwangjin-gu, Seoul-05006, South Korea
| | - O. Teijido
- EuroEspes Biomedical Research Center, Institute of Medical Science and Genomic Medicine, Corunna, Spain
- Genomic Medicine, Continental University Medical School, Huancayo, Peru 3Human Genetics Laboratory, Department of Zoology, School of Life Sciences, Bharathiar University, Bharathiar 641 046, Tamil Nadu, India
| | - J.C. Carril
- EuroEspes Biomedical Research Center, Institute of Medical Science and Genomic Medicine, Corunna, Spain
- Genomic Medicine, Continental University Medical School, Huancayo, Peru 3Human Genetics Laboratory, Department of Zoology, School of Life Sciences, Bharathiar University, Bharathiar 641 046, Tamil Nadu, India
| | - P. Cacabelos
- EuroEspes Biomedical Research Center, Institute of Medical Science and Genomic Medicine, Corunna, Spain
| | - S. Keshavarao
- Genomic Medicine, Continental University Medical School, Huancayo, Peru 3Human Genetics Laboratory, Department of Zoology, School of Life Sciences, Bharathiar University, Bharathiar 641 046, Tamil Nadu, India
| | - R. Cacabelos
- EuroEspes Biomedical Research Center, Institute of Medical Science and Genomic Medicine, Corunna, Spain
- Genomic Medicine, Continental University Medical School, Huancayo, Peru 3Human Genetics Laboratory, Department of Zoology, School of Life Sciences, Bharathiar University, Bharathiar 641 046, Tamil Nadu, India
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Murugesan T, Velliayadevar K, Easwaran M, KG K, KA AN, Ramasamy M, Muthusamy P, Jayaraman A. Molecular architecture of pterin deaminase from Saccharomyces cerevisiae NCIM 3458. Pteridines 2017. [DOI: 10.1515/pterid-2017-0011] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
Abstract
As early as 1974, reports have confirmed the anticancer activity of pterin deaminase isolated from fungi. The enzyme has also been reported in bacteria, fungi and slime mold genera, but the enzyme characterization was effetely done. The present study attempted to purify and characterize pterin deaminase enzyme from Saccharomyces cerevisiae NCIM 3458. The protein was extracted from the extracellular extract by using the ethanol precipitation method. Partial purification of pterin deaminase enzyme was achieved by ion exchange chromatography (Hi-Trap QFF) by fast protein liquid chromatography (AKTA purifier). The molecular weight of the protein was apparently determined by SDS-PAGE, and the presence of pterin deaminase was confirmed by activity staining. The purified enzyme was further biochemically characterized. Molecular docking studies showed higher binding affinity towards folic acid interaction. The structural characterization of this protein may open the windows for new drug targets for cancer therapy.
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Affiliation(s)
- Thandeeswaran Murugesan
- Cancer Therapeutics Lab , Department of Microbial Biotechnology , Bharathiar University , Coimbatore 641046, Tamilnadu , India
| | - Karuppuswamy Velliayadevar
- Cancer Therapeutics Lab , Department of Microbial Biotechnology , Bharathiar University , Coimbatore 641046, Tamilnadu , India
| | - Murugesh Easwaran
- Department of Bioinformatics , Bharathiar University , Coimbatore 641046, Tamilnadu , India
| | - Kiran KG
- Cancer Therapeutics Lab , Department of Microbial Biotechnology , Bharathiar University , Coimbatore 641046, Tamilnadu , India
| | - Ayub Nawaz KA
- Cancer Therapeutics Lab , Department of Microbial Biotechnology , Bharathiar University , Coimbatore 641046, Tamilnadu , India
| | - Mahendran Ramasamy
- Cancer Therapeutics Lab , Department of Microbial Biotechnology , Bharathiar University , Coimbatore 641046, Tamilnadu , India
| | - Palaniswamy Muthusamy
- Department of Microbiology , Karpagam University , Coimbatore 641021, Tamilnadu , India
| | - Angayarkanni Jayaraman
- Cancer Therapeutics Lab , Department of Microbial Biotechnology , Bharathiar University , Coimbatore 641046, Tamilnadu , India
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22
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Vemanna RS, Vennapusa AR, Easwaran M, Chandrashekar BK, Rao H, Ghanti K, Sudhakar C, Mysore KS, Makarla U. Aldo-keto reductase enzymes detoxify glyphosate and improve herbicide resistance in plants. Plant Biotechnol J 2017; 15:794-804. [PMID: 27611904 PMCID: PMC5466437 DOI: 10.1111/pbi.12632] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/21/2016] [Accepted: 08/31/2016] [Indexed: 05/19/2023]
Abstract
In recent years, concerns about the use of glyphosate-resistant crops have increased because of glyphosate residual levels in plants and development of herbicide-resistant weeds. In spite of identifying glyphosate-detoxifying genes from microorganisms, the plant mechanism to detoxify glyphosate has not been studied. We characterized an aldo-keto reductase gene from Pseudomonas (PsAKR1) and rice (OsAKR1) and showed, by docking studies, both PsAKR1 and OsAKR1 can efficiently bind to glyphosate. Silencing AKR1 homologues in rice and Nicotiana benthamiana or mutation of AKR1 in yeast and Arabidopsis showed increased sensitivity to glyphosate. External application of AKR proteins rescued glyphosate-mediated cucumber seedling growth inhibition. Regeneration of tobacco transgenic lines expressing PsAKR1 or OsAKRI on glyphosate suggests that AKR can be used as selectable marker to develop transgenic crops. PsAKR1- or OsAKRI-expressing tobacco and rice transgenic plants showed improved tolerance to glyphosate with reduced accumulation of shikimic acid without affecting the normal photosynthetic rates. These results suggested that AKR1 when overexpressed detoxifies glyphosate in planta.
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Affiliation(s)
- Ramu S. Vemanna
- Department of Crop PhysiologyUniversity of Agricultural SciencesGKVKBangaloreIndia
- Plant Biology DivisionThe Samuel Roberts Noble FoundationArdmoreOKUSA
| | - Amaranatha Reddy Vennapusa
- Department of Crop PhysiologyUniversity of Agricultural SciencesGKVKBangaloreIndia
- Department of BotanySri Krishnadevaraya UniversityAnantapurIndia
| | - Murugesh Easwaran
- Department of BioinformaticsCentre for BioinformaticsBharathiar UniversityCoimbatoreIndia
| | - Babitha K. Chandrashekar
- Department of Crop PhysiologyUniversity of Agricultural SciencesGKVKBangaloreIndia
- Plant Biology DivisionThe Samuel Roberts Noble FoundationArdmoreOKUSA
| | - Hanumantha Rao
- Department of Crop PhysiologyUniversity of Agricultural SciencesGKVKBangaloreIndia
- Present address: Orris Life SciencesBangaloreIndia
| | - Kirankumar Ghanti
- Department of Crop PhysiologyUniversity of Agricultural SciencesGKVKBangaloreIndia
- Present address: Monsanto Research CenterBangaloreIndia
| | - Chinta Sudhakar
- Department of BotanySri Krishnadevaraya UniversityAnantapurIndia
| | | | - Udayakumar Makarla
- Department of Crop PhysiologyUniversity of Agricultural SciencesGKVKBangaloreIndia
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23
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Easwaran M, Dananjaya SHS, Park SC, Lee J, Shin HJ, De Zoysa M. Characterization of bacteriophage pAh-1 and its protective effects on experimental infection of Aeromonas hydrophila in Zebrafish (Danio rerio). J Fish Dis 2017; 40:841-846. [PMID: 27454188 DOI: 10.1111/jfd.12536] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/27/2016] [Revised: 06/18/2016] [Accepted: 06/21/2016] [Indexed: 06/06/2023]
Affiliation(s)
- M Easwaran
- College of Veterinary Medicine and Research Institute of Veterinary Medicine, Chungnam National University, Daejeon, Korea
| | - S H S Dananjaya
- College of Veterinary Medicine and Research Institute of Veterinary Medicine, Chungnam National University, Daejeon, Korea
| | - S C Park
- College of Veterinary Medicine and Research Institute for Veterinary Science, Seoul National University, Seoul, Korea
| | - J Lee
- Department of Marine Life Sciences, School of Marine Biomedical Sciences, Jeju National University, Jeju Self-Governing Province, Korea
- Fish Vaccine Research Center, Jeju National University, Jeju Self-Governing Province, Korea
| | - H-J Shin
- College of Veterinary Medicine and Research Institute of Veterinary Medicine, Chungnam National University, Daejeon, Korea
| | - M De Zoysa
- College of Veterinary Medicine and Research Institute of Veterinary Medicine, Chungnam National University, Daejeon, Korea
- Fish Vaccine Research Center, Jeju National University, Jeju Self-Governing Province, Korea
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24
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Kiran KG, Thandeeswaran M, Ayub Nawaz KA, Easwaran M, Jayagopi KK, Ebrahimi L, Palaniswamy M, Mahendran R, Angayarkanni J. Quinazoline derivative from indigenous isolate, Nocardiopsis alba inhibits human telomerase enzyme. J Appl Microbiol 2016; 121:1637-1652. [PMID: 27567126 DOI: 10.1111/jam.13281] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2016] [Revised: 07/06/2016] [Accepted: 08/08/2016] [Indexed: 01/30/2023]
Abstract
AIM Aim of this study was isolation and screening of various secondary metabolites produced by indigenous isolates of soil Actinomycetes for human telomerase inhibitory activity. METHODS AND RESULTS Extracellular extract from culture suspension of various soil Actinomycetes species were tested for telomerase inhibitory activity. The organism which produced telomerase inhibitor was identified by 16S rRNA gene sequencing. The active fraction was purified by HPLC and analysed by GC-MS to identify the compound. In GC-MS analysis, the active principle was identified as 3-[4'-(2″-chlorophenyl)-2'-thiazolyl]-2,4-dioxo-1,2,3,4-tetrahydro quinazoline. The G-quadruplex stabilizing ability of the compound was checked by molecular docking and simulation experiments with G-quadruplex model (PDB ID-1L1H). The selective binding ability of the compound with G-quadruplex over Dickerson-Drew dodecamer DNA structures showed that the compound possess high selectivity towards G-quadruplex. CONCLUSIONS Quinazoline derivative isolated from an indigenous strain of Nocardiopsis alba inhibited telomerase. Molecular docking and simulation studies predicted that this compound is a strong stabilizer of G-quadruplex conformation. It also showed a preferable binding to G-quadruplex DNA over normal DNA duplex. SIGNIFICANCE AND IMPACT OF THE STUDY This particular compound can be suggested as a suitable compound for developing a future anticancer drug. The selectivity towards G-quadruplex over normal DNA duplex gives a clue that it is likely to show lower cytotoxicity in normal cells.
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Affiliation(s)
- K G Kiran
- Department of Microbial Biotechnology, Bharathiar University, Coimbatore, India
| | - M Thandeeswaran
- Department of Microbial Biotechnology, Bharathiar University, Coimbatore, India
| | - K A Ayub Nawaz
- Department of Microbial Biotechnology, Bharathiar University, Coimbatore, India
| | - M Easwaran
- Department of Bioinformatics, Bharathiar University, Coimbatore, India
| | - K K Jayagopi
- Department of Microbial Biotechnology, Bharathiar University, Coimbatore, India
| | - L Ebrahimi
- Department of Microbial Biotechnology, Bharathiar University, Coimbatore, India
| | - M Palaniswamy
- School of Life Science, Karpagam University, Coimbatore, India
| | - R Mahendran
- Department of Microbial Biotechnology, Bharathiar University, Coimbatore, India
| | - J Angayarkanni
- Department of Microbial Biotechnology, Bharathiar University, Coimbatore, India
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Arun M, Balamuralikrishnan B, Kumar AK, Sureshkumar S, Mustaqahamed S, Mohanadevi S, Easwaran M, Raman N, Haripriya KB, Palanivel H, Balachandar V, Sasikala K. Association between exposure to nitric oxide and changes in select molecular markers of health among men in the gold jewelry manufacturing industry. Karbala International Journal of Modern Science 2016. [DOI: 10.1016/j.kijoms.2016.04.002] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
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26
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Karkute SG, Easwaran M, Gujjar RS, Piramanayagam S, Singh M. Protein modeling and molecular dynamics simulation of SlWRKY4 protein cloned from drought tolerant tomato (Solanum habrochaites) line EC520061. J Mol Model 2015; 21:255. [DOI: 10.1007/s00894-015-2798-7] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2015] [Accepted: 08/24/2015] [Indexed: 01/01/2023]
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27
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Yousuf S, Radhika D, Enoch IVMV, Easwaran M. The influence of β-cyclodextrin encapsulation on the binding of 2'-hydroxyflavanone with calf thymus DNA. Spectrochim Acta A Mol Biomol Spectrosc 2012; 98:405-412. [PMID: 23010624 DOI: 10.1016/j.saa.2012.08.068] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/20/2012] [Revised: 08/07/2012] [Accepted: 08/21/2012] [Indexed: 06/01/2023]
Abstract
Inclusion complexation of 2'-hydroxyflavanone (2'HF) with β-cyclodextrin (β-CD) was studied, both in solution phase and as solid inclusion complexes, by UV-visible and fluorescence spectroscopic, scanning electron microscopic and X-ray diffractometric techniques. The interaction of 2'HF with calf thymus DNA (ctDNA) in the presence and the absence of β-CD were compared. Fluorescence enhancement was observed for 2'HF due to the formation of 1:1 complex with β-CD. The structure of 1:1 complex is proposed based on spectral observation, molecular modeling and by calculated theoretical bond lengths. The possible mode of interaction between 2'HF and DNA was analyzed by molecular modeling method. The interaction of 2'HF with calf thymus DNA (ctDNA) was investigated by absorption and fluorescence measurements in the presence and the absence of β-CD as capping agent. Both in the presence and the absence of β-CD, 2'HF showed hyper-chromic effect, red shift of absorption spectra, and quenching of fluorescence due to binding of 2'HF with ctDNA. The results reveal that the phenolic moiety is involved in inclusion complexation with β-CD and interaction with DNA. In the presence of β-CD, the phenolic moiety may be included in cyclodextrin cavity, whereas the dihydrobenzopyran-4-one moiety interacts with DNA. Further, β-CD selectively blocks a part of the 2'HF molecule binding with DNA. This renders the remaining portion of the flavanone available for interaction with DNA.
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Affiliation(s)
- Sameena Yousuf
- Department of Chemistry, Karunya University, Coimbatore 641 114, Tamil Nadu, India
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