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Qush A, Al Khatib HA, Rachid H, Al-Tamimi H, Al-Eshaq A, Al-Adwi S, Yassine HM, Kamareddine L. Intake of caffeine containing sugar diet remodels gut microbiota and perturbs Drosophila melanogaster immunity and lifespan. Microbes Infect 2023; 25:105149. [PMID: 37169244 DOI: 10.1016/j.micinf.2023.105149] [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] [Received: 11/30/2022] [Revised: 04/30/2023] [Accepted: 05/04/2023] [Indexed: 05/13/2023]
Abstract
The diet-microbiome-immunity axis is one among the many arms that draw up the "we are what we intake" proclamation. As such, studies on the effect of food and beverage intake on the gut environment and microbiome and on modulating immunological responses and the host's susceptibility to pathogens are on the rise. A typical accompaniment in different sustenance we consume on daily basis is the trimethylxanthine alkaloid caffeine. Being a chief component in our regular aliment, a better understanding of the effect of caffeine containing food and beverages on our gut-microbiome-immunity axis and henceforth on our health is much needed. In this study, we shed more light on the effect of oral consumption of caffeine supplemented sugar diet on the gut environment, specifically on the gut microbiota, innate immunity and host susceptibility to pathogens using the Drosophila melanogaster model organism. Our findings reveal that the oral intake of a dose-specific caffeine containing sucrose/agarose sugar diet causes a significant alteration within the fly gut milieu demarcated by microbial dysbiosis and an elevation in the production of reactive oxygen species and expression of immune-deficiency (Imd) pathway-dependent antimicrobial peptide genes. The oral intake of caffeine containing sucrose/agarose sugar diet also renders the flies more susceptible to bacterial infection and shortens their lifespan in both infection and non-infection settings. Our findings set forth additional insight into the potentiality of diet to alter the gut milieu and highlight the importance of dietary control on health.
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Affiliation(s)
- Abeer Qush
- Department of Biomedical Sciences, College of Health Sciences, QU Health, Qatar University, Doha, Qatar
| | - Hebah A Al Khatib
- Department of Biomedical Sciences, College of Health Sciences, QU Health, Qatar University, Doha, Qatar; Biomedical Research Center, Qatar University, Doha, Qatar
| | - Hajar Rachid
- Department of Biomedical Sciences, College of Health Sciences, QU Health, Qatar University, Doha, Qatar
| | - Hend Al-Tamimi
- Department of Basic Medical Sciences, College of Medicine, QU Health, Qatar University, Doha, Qatar
| | - Alyaa Al-Eshaq
- Department of Basic Medical Sciences, College of Medicine, QU Health, Qatar University, Doha, Qatar
| | - Shaima Al-Adwi
- Department of Biomedical Sciences, College of Health Sciences, QU Health, Qatar University, Doha, Qatar
| | - Hadi M Yassine
- Department of Biomedical Sciences, College of Health Sciences, QU Health, Qatar University, Doha, Qatar; Biomedical Research Center, Qatar University, Doha, Qatar
| | - Layla Kamareddine
- Department of Biomedical Sciences, College of Health Sciences, QU Health, Qatar University, Doha, Qatar; Biomedical Research Center, Qatar University, Doha, Qatar.
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Lopez-Ortiz C, Gracia-Rodriguez C, Belcher S, Flores-Iga G, Das A, Nimmakayala P, Balagurusamy N, Reddy UK. Drosophila melanogaster as a Translational Model System to Explore the Impact of Phytochemicals on Human Health. Int J Mol Sci 2023; 24:13365. [PMID: 37686177 PMCID: PMC10487418 DOI: 10.3390/ijms241713365] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2023] [Revised: 08/25/2023] [Accepted: 08/27/2023] [Indexed: 09/10/2023] Open
Abstract
Fruits, vegetables, and spices are natural sources of bioactive phytochemicals, such as polyphenols, carotenoids, flavonoids, curcuminoids, terpenoids, and capsaicinoids, possessing multiple health benefits and relatively low toxicity. These compounds found in the diet play a central role in organism development and fitness. Given the complexity of the whole-body response to dietary changes, invertebrate model organisms can be valuable tools to examine the interplay between genes, signaling pathways, and metabolism. Drosophila melanogaster, an invertebrate model with its extensively studied genome, has more than 70% gene homology to humans and has been used as a model system in biological studies for a long time. The notable advantages of Drosophila as a model system, such as their low maintenance cost, high reproductive rate, short generation time and lifespan, and the high similarity of metabolic pathways between Drosophila and mammals, have encouraged the use of Drosophila in the context of screening and evaluating the impact of phytochemicals present in the diet. Here, we review the benefits of Drosophila as a model system for use in the study of phytochemical ingestion and describe the previously reported effects of phytochemical consumption in Drosophila.
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Affiliation(s)
- Carlos Lopez-Ortiz
- Department of Biology, Gus R. Douglass Institute, West Virginia State University, Institute, WV 25112-1000, USA; (C.L.-O.); (C.G.-R.); (S.B.); (G.F.-I.); (A.D.); (P.N.)
| | - Celeste Gracia-Rodriguez
- Department of Biology, Gus R. Douglass Institute, West Virginia State University, Institute, WV 25112-1000, USA; (C.L.-O.); (C.G.-R.); (S.B.); (G.F.-I.); (A.D.); (P.N.)
- Laboratorio de Biorremediación, Facultad de Ciencias Biológicas, Universidad Autónoma de Coahuila, Torreón 27275, Coahuila, Mexico;
| | - Samantha Belcher
- Department of Biology, Gus R. Douglass Institute, West Virginia State University, Institute, WV 25112-1000, USA; (C.L.-O.); (C.G.-R.); (S.B.); (G.F.-I.); (A.D.); (P.N.)
| | - Gerardo Flores-Iga
- Department of Biology, Gus R. Douglass Institute, West Virginia State University, Institute, WV 25112-1000, USA; (C.L.-O.); (C.G.-R.); (S.B.); (G.F.-I.); (A.D.); (P.N.)
- Laboratorio de Biorremediación, Facultad de Ciencias Biológicas, Universidad Autónoma de Coahuila, Torreón 27275, Coahuila, Mexico;
| | - Amartya Das
- Department of Biology, Gus R. Douglass Institute, West Virginia State University, Institute, WV 25112-1000, USA; (C.L.-O.); (C.G.-R.); (S.B.); (G.F.-I.); (A.D.); (P.N.)
| | - Padma Nimmakayala
- Department of Biology, Gus R. Douglass Institute, West Virginia State University, Institute, WV 25112-1000, USA; (C.L.-O.); (C.G.-R.); (S.B.); (G.F.-I.); (A.D.); (P.N.)
| | - Nagamani Balagurusamy
- Laboratorio de Biorremediación, Facultad de Ciencias Biológicas, Universidad Autónoma de Coahuila, Torreón 27275, Coahuila, Mexico;
| | - Umesh K. Reddy
- Department of Biology, Gus R. Douglass Institute, West Virginia State University, Institute, WV 25112-1000, USA; (C.L.-O.); (C.G.-R.); (S.B.); (G.F.-I.); (A.D.); (P.N.)
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Naliyadhara N, Kumar A, Kumar Gangwar S, Nair Devanarayanan T, Hegde M, Alqahtani MS, Abbas M, Sethi G, Kunnumakara A. Interplay of dietary antioxidants and gut microbiome in human health: What has been learnt thus far? J Funct Foods 2023. [DOI: 10.1016/j.jff.2022.105365] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
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4
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Lopez-Ortiz C, Edwards M, Natarajan P, Pacheco-Valenciana A, Nimmakayala P, Adjeroh DA, Sirbu C, Reddy UK. Peppers in Diet: Genome-Wide Transcriptome and Metabolome Changes in Drosophila melanogaster. Int J Mol Sci 2022; 23:ijms23179924. [PMID: 36077322 PMCID: PMC9455967 DOI: 10.3390/ijms23179924] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2022] [Revised: 08/24/2022] [Accepted: 08/25/2022] [Indexed: 11/16/2022] Open
Abstract
The habanero pepper (Capsicum chinense) is an increasingly important spice and vegetable crop worldwide because of its high capsaicin content and pungent flavor. Diets supplemented with the phytochemicals found in habanero peppers might cause shifts in an organism’s metabolism and gene expression. Thus, understanding how these interactions occur can reveal the potential health effects associated with such changes. We performed transcriptomic and metabolomic analyses of Drosophila melanogaster adult flies reared on a habanero pepper diet. We found 539 genes/59 metabolites that were differentially expressed/accumulated in flies fed a pepper versus control diet. Transcriptome results indicated that olfactory sensitivity and behavioral responses to the pepper diet were mediated by olfactory and nutrient-related genes including gustatory receptors (Gr63a, Gr66a, and Gr89a), odorant receptors (Or23a, Or59a, Or82a, and Orco), and odorant-binding proteins (Obp28a, Obp83a, Obp83b, Obp93a, and Obp99a). Metabolome analysis revealed that campesterol, sitosterol, and sucrose were highly upregulated and azelaic acid, ethyl phosphoric acid, and citric acid were the major metabolites downregulated in response to the habanero pepper diet. Further investigation by integration analysis between transcriptome and metabolome data at gene pathway levels revealed six unique enriched pathways, including phenylalanine metabolism; insect hormone biosynthesis; pyrimidine metabolism; glyoxylate, and dicarboxylate metabolism; glycine, serine, threonine metabolism; and glycerolipid metabolism. In view of the transcriptome and metabolome findings, our comprehensive analysis of the response to a pepper diet in Drosophila have implications for exploring the molecular mechanism of pepper consumption.
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Affiliation(s)
- Carlos Lopez-Ortiz
- Department of Biology, Gus R. Douglass Institute, West Virginia State University, Institute, WV 25112, USA
| | - Mary Edwards
- Department of Biology, Gus R. Douglass Institute, West Virginia State University, Institute, WV 25112, USA
| | - Purushothaman Natarajan
- Department of Biology, Gus R. Douglass Institute, West Virginia State University, Institute, WV 25112, USA
| | - Armando Pacheco-Valenciana
- Department of Biology, Gus R. Douglass Institute, West Virginia State University, Institute, WV 25112, USA
| | - Padma Nimmakayala
- Department of Biology, Gus R. Douglass Institute, West Virginia State University, Institute, WV 25112, USA
| | - Donald A. Adjeroh
- Lane Department of Computer Science and Electrical Engineering, West Virginia University, Morgantown, WV 26506, USA
| | - Cristian Sirbu
- Charleston Area Medical Center, Institute for Academic Medicine, Charleston, WV 25304, USA
- Department of Behavioral Medicine and Psychiatry, West Virginia University School of Medicine, Charleston Division, Charleston, WV 25304, USA
| | - Umesh K. Reddy
- Department of Biology, Gus R. Douglass Institute, West Virginia State University, Institute, WV 25112, USA
- Correspondence:
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McCoubrey LE, Seegobin N, Elbadawi M, Hu Y, Orlu M, Gaisford S, Basit AW. Active Machine learning for formulation of precision probiotics. Int J Pharm 2022; 616:121568. [PMID: 35150845 DOI: 10.1016/j.ijpharm.2022.121568] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2022] [Revised: 02/04/2022] [Accepted: 02/07/2022] [Indexed: 12/15/2022]
Abstract
It is becoming clear that the human gut microbiome is critical to health and well-being, with increasing evidence demonstrating that dysbiosis can promote disease. Increasingly, precision probiotics are being investigated as investigational drug products for restoration of healthy microbiome balance. To reach the distal gut alive where the density of microbiota is highest, oral probiotics should be protected from harsh conditions during transit through the stomach and small intestines. At present, few probiotic formulations are designed with this delivery strategy in mind. This study employs an emerging machine learning (ML) technique, known as active ML, to predict how excipients at pharmaceutically relevant concentrations affect the intestinal proliferation of a common probiotic, Lactobacillus paracasei. Starting with a labelled dataset of just 6 bacteria-excipient interactions, active ML was able to predict the effects of a further 111 excipients using uncertainty sampling. The average certainty of the final model was 67.70% and experimental validation demonstrated that 3/4 excipient-probiotic interactions could be correctly predicted. The model can be used to enable superior probiotic delivery to maximise proliferation in vivo and marks the first use of active ML in microbiome science.
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Affiliation(s)
- Laura E McCoubrey
- UCL School of Pharmacy, University College London, Brunswick Square, London WC1N 1AX, United Kingdom
| | - Nidhi Seegobin
- UCL School of Pharmacy, University College London, Brunswick Square, London WC1N 1AX, United Kingdom
| | - Moe Elbadawi
- UCL School of Pharmacy, University College London, Brunswick Square, London WC1N 1AX, United Kingdom
| | - Yiling Hu
- UCL School of Pharmacy, University College London, Brunswick Square, London WC1N 1AX, United Kingdom
| | - Mine Orlu
- UCL School of Pharmacy, University College London, Brunswick Square, London WC1N 1AX, United Kingdom
| | - Simon Gaisford
- UCL School of Pharmacy, University College London, Brunswick Square, London WC1N 1AX, United Kingdom
| | - Abdul W Basit
- UCL School of Pharmacy, University College London, Brunswick Square, London WC1N 1AX, United Kingdom.
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Capsaicin and Gut Microbiota in Health and Disease. Molecules 2020; 25:molecules25235681. [PMID: 33276488 PMCID: PMC7730216 DOI: 10.3390/molecules25235681] [Citation(s) in RCA: 35] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2020] [Revised: 11/27/2020] [Accepted: 11/27/2020] [Indexed: 02/06/2023] Open
Abstract
Capsaicin is a widespread spice known for its analgesic qualities. Although a comprehensive body of evidence suggests pleiotropic benefits of capsaicin, including anti-inflammatory, antioxidant, anti-proliferative, metabolic, or cardioprotective effects, it is frequently avoided due to reported digestive side-effects. As the gut bacterial profile is strongly linked to diet and capsaicin displays modulatory effects on gut microbiota, a new hypothesis has recently emerged about its possible applicability against widespread pathologies, such as metabolic and inflammatory diseases. The present review explores the capsaicin–microbiota crosstalk and capsaicin effect on dysbiosis, and illustrates the intimate mechanisms that underlie its action in preventing the onset or development of pathologies like obesity, diabetes, or inflammatory bowel diseases. A possible antimicrobial property of capsaicin, mediated by the beneficial alteration of microbiota, is also discussed. However, as data are coming mostly from experimental models, caution is needed in translating these findings to humans.
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