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Park SH, Lee DH, Lee DH, Jung CH. Scientific evidence of foods that improve the lifespan and healthspan of different organisms. Nutr Res Rev 2024; 37:169-178. [PMID: 37469212 DOI: 10.1017/s0954422423000136] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/21/2023]
Abstract
Age is a risk factor for numerous diseases. Although the development of modern medicine has greatly extended the human lifespan, the duration of relatively healthy old age, or 'healthspan', has not increased. Targeting the detrimental processes that can occur before the onset of age-related diseases can greatly improve health and lifespan. Healthspan is significantly affected by what, when and how much one eats. Dietary restriction, including calorie restriction, fasting or fasting-mimicking diets, to extend both lifespan and healthspan has recently attracted much attention. However, direct scientific evidence that consuming specific foods extends the lifespan and healthspan seems lacking. Here, we synthesized the results of recent studies on the lifespan and healthspan extension properties of foods and their phytochemicals in various organisms to confirm how far the scientific research on the effect of food on the lifespan has reached.
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Affiliation(s)
- So-Hyun Park
- Aging and Metabolism Research Group, Korea Food Research Institute, Wanju-gun, Jeollabuk-do, South Korea
| | - Da-Hye Lee
- Department of Biochemistry, Molecular Biology, and Biophysics, University of Minnesota, Minneapolis, MN, USA
| | - Dae-Hee Lee
- Department of Marine Food Science and Technology, Gangneung-Wonju National University, Gangneung, Gangwon-do, South Korea
| | - Chang Hwa Jung
- Aging and Metabolism Research Group, Korea Food Research Institute, Wanju-gun, Jeollabuk-do, South Korea
- Department of Food Biotechnology, University of Science and Technology, Wanju-gun, Jeollabuk-do, South Korea
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Basudkar V, Gujrati G, Ajgaonkar S, Gandhi M, Mehta D, Nair S. Emerging Vistas for the Nutraceutical Withania somnifera in Inflammaging. Pharmaceuticals (Basel) 2024; 17:597. [PMID: 38794167 PMCID: PMC11123800 DOI: 10.3390/ph17050597] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2024] [Revised: 04/26/2024] [Accepted: 05/03/2024] [Indexed: 05/26/2024] Open
Abstract
Inflammaging, a coexistence of inflammation and aging, is a persistent, systemic, low-grade inflammation seen in the geriatric population. Various natural compounds have been greatly explored for their potential role in preventing and treating inflammaging. Withania somnifera has been used for thousands of years in traditional medicine as a nutraceutical for its numerous health benefits including regenerative and adaptogenic effects. Recent preclinical and clinical studies on the role of Withania somnifera and its active compounds in treating aging, inflammation, and oxidative stress have shown promise for its use in healthy aging. We discuss the chemistry of Withania somnifera, the etiology of inflammaging and the protective role(s) of Withania somnifera in inflammaging in key organ systems including brain, lung, kidney, and liver as well as the mechanistic underpinning of these effects. Furthermore, we elucidate the beneficial effects of Withania somnifera in oxidative stress/DNA damage, immunomodulation, COVID-19, and the microbiome. We also delineate a putative protein-protein interaction network of key biomarkers modulated by Withania somnifera in inflammaging. In addition, we review the safety/potential toxicity of Withania somnifera as well as global clinical trials on Withania somnifera. Taken together, this is a synthetic review on the beneficial effects of Withania somnifera in inflammaging and highlights the potential of Withania somnifera in improving the health-related quality of life (HRQoL) in the aging population worldwide.
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Affiliation(s)
- Vivek Basudkar
- PhytoVeda Pvt. Ltd., Mumbai 400 022, India
- Viridis Biopharma Pvt. Ltd., Mumbai 400 022, India
| | - Gunjan Gujrati
- PhytoVeda Pvt. Ltd., Mumbai 400 022, India
- Viridis Biopharma Pvt. Ltd., Mumbai 400 022, India
| | - Saiprasad Ajgaonkar
- PhytoVeda Pvt. Ltd., Mumbai 400 022, India
- Viridis Biopharma Pvt. Ltd., Mumbai 400 022, India
| | - Manav Gandhi
- College of Medicine, University of Illinois Chicago, Chicago, IL 60612, USA
| | - Dilip Mehta
- PhytoVeda Pvt. Ltd., Mumbai 400 022, India
- Viridis Biopharma Pvt. Ltd., Mumbai 400 022, India
| | - Sujit Nair
- PhytoVeda Pvt. Ltd., Mumbai 400 022, India
- Viridis Biopharma Pvt. Ltd., Mumbai 400 022, India
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Ye W, Wu Z, Gao P, Kang J, Xu Y, Wei C, Zhang M, Zhu X. Identified Gefitinib Metabolism-Related lncRNAs can be Applied to Predict Prognosis, Tumor Microenvironment, and Drug Sensitivity in Non-Small Cell Lung Cancer. Front Oncol 2022; 12:939021. [PMID: 35978819 PMCID: PMC9376789 DOI: 10.3389/fonc.2022.939021] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2022] [Accepted: 06/06/2022] [Indexed: 12/15/2022] Open
Abstract
Gefitinib has shown promising efficacy in the treatment of patients with locally advanced or metastatic EGFR-mutated non-small cell lung cancer (NSCLC). Molecular biomarkers for gefitinib metabolism-related lncRNAs have not yet been elucidated. Here, we downloaded relevant genes and matched them to relevant lncRNAs. We then used univariate, LASSO, and multivariate regression to screen for significant genes to construct prognostic models. We investigated TME and drug sensitivity by risk score data. All lncRNAs with differential expression were selected for GO/KEGG analysis. Imvigor210 cohort was used to validate the value of the prognostic model. Finally, we performed a stemness indices difference analysis. lncRNA-constructed prognostic models were significant in the high-risk and low-risk subgroups. Immune pathways were identified in both groups at low risk. The higher the risk score the greater the value of exclusion, MDSC, and CAF. PRRophetic algorithm screened a total of 58 compounds. In conclusion, the prognostic model we constructed can accurately predict OS in NSCLC patients. Two groups of low-risk immune pathways are beneficial to patients. Gefitinib metabolism was again validated to be related to cytochrome P450 and lipid metabolism. Finally, drugs that might be used to treat NSCLC patients were screened.
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Affiliation(s)
- Weilong Ye
- School of Laboratory Medicine and Biological Engineering, Hangzhou Medical College, Hangzhou, China
- Computational Oncology Laboratory, Guangdong Medical University, Zhanjiang, China
| | - Zhengguo Wu
- Department of Thoracic Surgery, Yantian District People’s Hospital, Shenzhen, China
| | - Pengbo Gao
- Computational Oncology Laboratory, Guangdong Medical University, Zhanjiang, China
| | - Jianhao Kang
- Computational Oncology Laboratory, Guangdong Medical University, Zhanjiang, China
| | - Yue Xu
- Computational Oncology Laboratory, Guangdong Medical University, Zhanjiang, China
| | - Chuzhong Wei
- Computational Oncology Laboratory, Guangdong Medical University, Zhanjiang, China
| | - Ming Zhang
- Department of Physical Medicine and Rehabilitation, Zibo Central Hospital, Zibo, China
- *Correspondence: Ming Zhang, ; Xiao Zhu,
| | - Xiao Zhu
- School of Laboratory Medicine and Biological Engineering, Hangzhou Medical College, Hangzhou, China
- Computational Oncology Laboratory, Guangdong Medical University, Zhanjiang, China
- *Correspondence: Ming Zhang, ; Xiao Zhu,
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QTOF-ESI MS Characterization and Antioxidant Activity of Physalis peruviana L. (Cape Gooseberry) Husks and Fruits from Costa Rica. Molecules 2022; 27:molecules27134238. [PMID: 35807484 PMCID: PMC9268663 DOI: 10.3390/molecules27134238] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2022] [Revised: 06/15/2022] [Accepted: 06/24/2022] [Indexed: 12/10/2022] Open
Abstract
There is increasing interest in research of secondary metabolites from Physalis peruviana (Cape gooseberry) because of their potential bioactivities. In this study, the profile of compounds found in fruits and husks from Costa Rica was determined through ultra-performance liquid chromatography coupled with high-resolution mass spectrometry using a quadrupole time-of-flight analyzer (UPLC-ESI-QTOF MS) on extracts (n = 10) obtained through pressurized liquid extraction (PLE) conditions. In total, 66 different compounds were identified, comprising 34 withanolides, 23 sucrose ester derivatives and 9 flavonoids. UPLC-DAD analysis was performed to determine the β-carotene in fruits and to quantify the flavonoids in all 10 samples, with the results showing higher contents in samples from the Dota region (58.6−60.1 μg/g of dry material versus 1.6−2.8 mg/g of dry material). The Folin−Ciocalteau total polyphenolic content (FC) and antioxidant activity using the DPPH method showed better results for the husk extracts, with the ones from the Dota region holding the best values (4.3−5.1 mg GAE/g of dry material versus IC50 = 1.6−2.3 mg of dry material/mL). In addition, a significant negative correlation was found between the RU, FC and DPPH values (r = −0.902, p < 0.05), aligning with previous reports on the role of polyphenols in antioxidant activity. Principal correlation analysis (PCoA) and hierarchical clustering (HC) analysis were performed on HRMS results, and they indicated that the D1 and D2 fruit samples from the Dota region were clustered with husks related to a higher presence of the analyzed metabolites. In turn, principal component analysis (PCA) performed on the flavonoid content and antioxidant activity yielded results indicating that the D1 and D2 husks and fruit samples from the Dota region stood out significantly, showing the highest antioxidant activity. In summation, our findings suggest that P. peruviana husks and fruits from Costa Rica constitute a substrate of interest for further studies on their potential health benefits.
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Bin-Jumah MN, Nadeem MS, Gilani SJ, Al-Abbasi FA, Ullah I, Alzarea SI, Ghoneim MM, Alshehri S, Uddin A, Murtaza BN, Kazmi I. Genes and Longevity of Lifespan. Int J Mol Sci 2022; 23:1499. [PMID: 35163422 PMCID: PMC8836117 DOI: 10.3390/ijms23031499] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2021] [Revised: 01/04/2022] [Accepted: 01/26/2022] [Indexed: 12/12/2022] Open
Abstract
Aging is a complex process indicated by low energy levels, declined physiological activity, stress induced loss of homeostasis leading to the risk of diseases and mortality. Recent developments in medical sciences and an increased availability of nutritional requirements has significantly increased the average human lifespan worldwide. Several environmental and physiological factors contribute to the aging process. However, about 40% human life expectancy is inherited among generations, many lifespan associated genes, genetic mechanisms and pathways have been demonstrated during last decades. In the present review, we have evaluated many human genes and their non-human orthologs established for their role in the regulation of lifespan. The study has included more than fifty genes reported in the literature for their contributions to the longevity of life. Intact genomic DNA is essential for the life activities at the level of cell, tissue, and organ. Nucleic acids are vulnerable to oxidative stress, chemotherapies, and exposure to radiations. Efficient DNA repair mechanisms are essential for the maintenance of genomic integrity, damaged DNA is not replicated and transferred to next generations rather the presence of deleterious DNA initiates signaling cascades leading to the cell cycle arrest or apoptosis. DNA modifications, DNA methylation, histone methylation, histone acetylation and DNA damage can eventually lead towards apoptosis. The importance of calorie restriction therapy in the extension of lifespan has also been discussed. The role of pathways involved in the regulation of lifespan such as DAF-16/FOXO (forkhead box protein O1), TOR and JNK pathways has also been particularized. The study provides an updated account of genetic factors associated with the extended lifespan and their interactive contributory role with cellular pathways.
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Affiliation(s)
- May Nasser Bin-Jumah
- Biology Department, College of Science, Princess Nourah Bint Abdulrahman University, Riyadh 11671, Saudi Arabia;
- Environment and Biomaterial Unit, Health Sciences Research Center, Princess Nourah Bint Abdulrahman University, Riyadh 11671, Saudi Arabia
| | - Muhammad Shahid Nadeem
- Department of Biochemistry, Faculty of Science, King Abdulaziz University, Jeddah 21589, Saudi Arabia;
| | - Sadaf Jamal Gilani
- Department of Basic Health Sciences, Princess Nourah Bint Abdulrahman University, Riyadh 11671, Saudi Arabia;
| | - Fahad A. Al-Abbasi
- Department of Biochemistry, Faculty of Science, King Abdulaziz University, Jeddah 21589, Saudi Arabia;
| | - Inam Ullah
- Institute of Molecular Biology and Biotechnology, The University of Lahore, Lahore 54000, Pakistan;
| | - Sami I. Alzarea
- Department of Pharmacology, College of Pharmacy, Jouf University, Sakaka 72341, Saudi Arabia;
| | - Mohammed M. Ghoneim
- Department of Pharmacy Practice, College of Pharmacy, AlMaarefa University, Ad Diriyah 13713, Saudi Arabia;
| | - Sultan Alshehri
- Department of Pharmaceutics, College of Pharmacy, King Saud University, Riyadh 11451, Saudi Arabia;
| | - Aziz Uddin
- Department of Biotechnology and Genetic Engineering, Hazara University, Mansehra 21300, Pakistan;
| | - Bibi Nazia Murtaza
- Department of Zoology, Abbottabad University of Science and Technology (AUST), Abbottabad 22310, Pakistan;
| | - Imran Kazmi
- Department of Biochemistry, Faculty of Science, King Abdulaziz University, Jeddah 21589, Saudi Arabia;
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Moghimi S, Harini BP. A comparative study of the efficiency of Withania somnifera and carbamazepine on lifespan, reproduction and epileptic phenotype - A study in Drosophila paralytic mutant. J Ayurveda Integr Med 2021; 13:100534. [PMID: 34980523 PMCID: PMC8814379 DOI: 10.1016/j.jaim.2021.11.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2021] [Revised: 10/08/2021] [Accepted: 11/19/2021] [Indexed: 11/09/2022] Open
Abstract
Background Seizure disorders are considered a serious health issue because of the vast number of people affected globally and the limited treatment options. Approximately 15 million epileptic patients worldwide do not respond to any of the currently available medications. Carbamazepine (CBZ) is one of the most widely used antiepileptic drugs (AEDs) for the treatment of epilepsy, which is discontinued in less than 5% of epileptic patients due to its side effects. In traditional medicine, to establish the foundation of health care, plant extracts are utilized to a great extent to treat different pathologies. Withania somnifera (W. somnifera) is an herbal component with anticonvulsant properties. Objectives To compare the medicinal effects of W. somnifera on lifespan, fecundity, fertility and epileptic phenotype in Drosophila paralytic mutant (parabss1) model system with CBZ, a commonly used AED. Material and methods Flies were exposed to three different doses of W. somnifera or CBZ in standard wheat flour-agar media for six days. Drosophila Oregon-R strain was used as a control. Results Results indicate that a high dose of W. somnifera increased the lifespan in Drosophila parabss1 while remaining safe for fecundity and fertility. CBZ decreased the lifespan of parabss1 mutant at higher dose (40 μg/ml), as expected, and also reduced the fecundity and fertility of the flies. Our findings indicate that W. somnifera was more effective than CBZ to control epileptic phenotype. Conclusion W. somnifera is an effective medication with no side effects for treating epilepsy in Drosophila paralytic mutant.
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Affiliation(s)
- Sara Moghimi
- Drosophila Culture Laboratory, Department of Zoology, Bangalore University, Bangalore 560056, Karnataka, India
| | - B P Harini
- Drosophila Culture Laboratory, Department of Zoology, Bangalore University, Bangalore 560056, Karnataka, India.
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Meng J, Cheng M, Liu L, Sun J, Condori-Apfata JA, Zhao D, Tao J. In-vitro antioxidant and in-vivo anti-aging with stress resistance on Caenorhabditis elegans of herbaceous peony stamen tea. INTERNATIONAL JOURNAL OF FOOD PROPERTIES 2021. [DOI: 10.1080/10942912.2021.1967385] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Affiliation(s)
- Jiasong Meng
- College of Horticulture and Plant Protection, Yangzhou University, Yangzhou, P.R. China
- Joint International Research Laboratory of Agriculture and Agri-Product Safety, the Ministry of Education of China, Yangzhou University, Yangzhou, P.R. China
| | - Menglin Cheng
- College of Horticulture and Plant Protection, Yangzhou University, Yangzhou, P.R. China
| | - Lei Liu
- College of Horticulture and Plant Protection, Yangzhou University, Yangzhou, P.R. China
| | - Jing Sun
- College of Horticulture and Plant Protection, Yangzhou University, Yangzhou, P.R. China
- Joint International Research Laboratory of Agriculture and Agri-Product Safety, the Ministry of Education of China, Yangzhou University, Yangzhou, P.R. China
| | | | - Daqiu Zhao
- College of Horticulture and Plant Protection, Yangzhou University, Yangzhou, P.R. China
- Joint International Research Laboratory of Agriculture and Agri-Product Safety, the Ministry of Education of China, Yangzhou University, Yangzhou, P.R. China
| | - Jun Tao
- College of Horticulture and Plant Protection, Yangzhou University, Yangzhou, P.R. China
- Joint International Research Laboratory of Agriculture and Agri-Product Safety, the Ministry of Education of China, Yangzhou University, Yangzhou, P.R. China
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Naß J, Abdelfatah S, Efferth T. Induction of stress resistance and extension of lifespan in Chaenorhabditis elegans serotonin-receptor knockout strains by withanolide A. PHYTOMEDICINE : INTERNATIONAL JOURNAL OF PHYTOTHERAPY AND PHYTOPHARMACOLOGY 2021; 84:153482. [PMID: 33611213 DOI: 10.1016/j.phymed.2021.153482] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/30/2020] [Revised: 01/17/2021] [Accepted: 01/23/2021] [Indexed: 06/12/2023]
Abstract
INTRODUCTION Approximately 300 million people worldwide suffer from depression. The COVID-19 crisis may dramatically increase these numbers. Severe side effects and resistance development limit the use of standard antidepressants. The steroidal lactone withanolide A (WA) from Withania somnifera may be a promising alternative. Caenorhabditis elegans was used as model to explore WA's anti-depressive and anti-stress potential. METHODS C. elegans wildtype (N2) and deficient strains (AQ866, DA1814, DA2100, DA2109 and MT9772) were used to assess oxidative, osmotic or heat stress as measured by generation of reactive oxygen species (ROS), determination of lifespan, and mRNA expression of serotonin receptor (ser-1, ser-4, ser-7) and serotonin transporter genes (mod-5). The protective effect of WA was compared to fluoxetine as clinically established antidepressant. Additionally, WA's effect on lifespan was determined. Furthermore, the binding affinities and pKi values of WA, fluoxetine and serotonin as natural ligand to Ser-1, Ser-4, Ser-7, Mod-5 and their human orthologues proteins were calculated by molecular docking. RESULTS Baseline oxidative stress was higher in deficient than wildtype worms. WA and fluoxetine reduced ROS levels in all strains except MT9772. WA and fluoxetine prolonged survival times in wildtype and mutants under osmotic stress. WA but not fluoxetine increased lifespan of all heat-stressed C. elegans strains except DA2100. Furthermore, WA but not fluoxetine extended lifespan in all non-stressed C. elegans strains. WA also induced mRNA expression of serotonin receptors and transporters in wildtype and mutants. WA bound with higher affinity and lower pKi values to all C. elegans and human serotonin receptors and transporters than serotonin, indicating that WA may competitively displaced serotonin from the binding pockets of these proteins. CONCLUSION WA reduced stress and increased lifespan by ROS scavenging and interference with the serotonin system. Hence, WA may serve as promising candidate to treat depression.
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Affiliation(s)
- Janine Naß
- Department of Pharmaceutical Biology, Institute of Biochemistry and Pharmacy, Johannes Gutenberg University, Staudinger Weg 5, 55128 Mainz, Germany
| | - Sara Abdelfatah
- Department of Pharmaceutical Biology, Institute of Biochemistry and Pharmacy, Johannes Gutenberg University, Staudinger Weg 5, 55128 Mainz, Germany
| | - Thomas Efferth
- Department of Pharmaceutical Biology, Institute of Biochemistry and Pharmacy, Johannes Gutenberg University, Staudinger Weg 5, 55128 Mainz, Germany.
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Gajendran B, Durai P, Madhu Varier K, Chinnasamy A. A novel phytosterol isolated from Datura inoxia, RinoxiaB is a potential cure colon cancer agent by targeting BAX/Bcl2 pathway. Bioorg Med Chem 2019; 28:115242. [PMID: 31866271 DOI: 10.1016/j.bmc.2019.115242] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2019] [Revised: 11/25/2019] [Accepted: 11/25/2019] [Indexed: 12/12/2022]
Abstract
Plant sterols have been widely used as chemotherapeutic agents for colorectal cancer for years together. In this study, a novel phytosterol was isolated and characterized from the leaf extract of a medicinal plant, Datura inoxia and was coined as RinoxiaB (RB). This phytosterol was observed to have antiproliferative activity against human colon adenocarcinoma cells, HCT 15. The cell viability assay revealed the IC50 value of the RB as 4 µM. Moreover, RB treated cells showed prominent morphological changes dose dependently and progressively increased the number of dead cells. Additionally, results of the comet, flow cytometry, and cell cycle analysis revealed that the majority of cells were arrested in their S and G2/M phase by blocking the mitotic spindle formation. The western blot analysis (Bcl-2, BAX, Cytochrome C, Caspases 9 & 3) clearly indicated that RB has the ability to induce apoptosis by significantly upregulating (P < 0.05) Bcl-2 and causing mitochondrial damage leading to Cytochrome C release and activation of caspases, which subsequently results in downregulation of BAX expression in the cytosol. Furthermore, the expression of tumor suppressors (p53 and p21) and cell cycle regulatory proteins (Cyclins D1 & B1) suggested that RB inhibit cell proliferation. Thus, the present finding concludes that RB can offer possible apoptotic effects by targeting BAX/Bcl2 pathway in HCT 15 cells, thus alleviating colon cancer.
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Affiliation(s)
- Babu Gajendran
- Department of Zoology, University of Madras, Guindy Campus, Chennai 600025, Tamil Nadu, India; State Key Laboratory of Functions and Applications of Medicinal Plants, Guizhou Medical University, Guiyang 550014, Guizhou Province, People's Republic of China; Key Laboratory of Chemistry for Natural Products of Guizhou Province and Chinese Academy of Sciences, Guiyang 550014, Guizhou Province, People's Republic of China
| | - Prabhu Durai
- Department of Zoology, University of Madras, Guindy Campus, Chennai 600025, Tamil Nadu, India
| | - Krishnapriya Madhu Varier
- Department of Zoology, University of Madras, Guindy Campus, Chennai 600025, Tamil Nadu, India; Department of Medical Biochemistry, Dr. ALM PGIBMS, University of Madras, Taramani Campus, Chennai 600113, Tamil Nadu, India
| | - Arulvasu Chinnasamy
- Department of Zoology, University of Madras, Guindy Campus, Chennai 600025, Tamil Nadu, India.
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C. elegans protein interaction network analysis probes RNAi validated pro-longevity effect of nhr-6, a human homolog of tumor suppressor Nr4a1. Sci Rep 2019; 9:15711. [PMID: 31673088 PMCID: PMC6823380 DOI: 10.1038/s41598-019-51649-0] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2018] [Accepted: 09/30/2019] [Indexed: 02/07/2023] Open
Abstract
Protein-protein interaction (PPI) studies are gaining momentum these days due to the plethora of various high-throughput experimental methods available for detecting PPIs. Proteins create complexes and networks by functioning in harmony with other proteins and here in silico network biology hold the promise to reveal new functionality of genes as it is very difficult and laborious to carry out experimental high-throughput genetic screens in living organisms. We demonstrate this approach by computationally screening C. elegans conserved homologs of already reported human tumor suppressor and aging associated genes. We select by this nhr-6, vab-3 and gst-23 as predicted longevity genes for RNAi screen. The RNAi results demonstrated the pro-longevity effect of these genes. Nuclear hormone receptor nhr-6 RNAi inhibition resulted in a C. elegans phenotype of 23.46% lifespan reduction. Moreover, we show that nhr-6 regulates oxidative stress resistance in worms and does not affect the feeding behavior of worms. These findings imply the potential of nhr-6 as a common therapeutic target for aging and cancer ailments, stressing the power of in silico PPI network analysis coupled with RNAi screens to describe gene function.
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Pandey T, Sammi SR, Nooreen Z, Mishra A, Ahmad A, Bhatta RS, Pandey R. Anti-ageing and anti-Parkinsonian effects of natural flavonol, tambulin from Zanthoxyllum aramatum promotes longevity in Caenorhabditis elegans. Exp Gerontol 2019; 120:50-61. [DOI: 10.1016/j.exger.2019.02.016] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2018] [Revised: 01/12/2019] [Accepted: 02/25/2019] [Indexed: 12/01/2022]
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