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Yang YH, Yan F, Shi PS, Yang LC, Cui DJ. HIF-1α Pathway Orchestration by LCN2: A Key Player in Hypoxia-Mediated Colitis Exacerbation. Inflammation 2024; 47:1491-1519. [PMID: 38819583 DOI: 10.1007/s10753-024-01990-y] [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: 12/04/2023] [Revised: 01/19/2024] [Accepted: 02/09/2024] [Indexed: 06/01/2024]
Abstract
In this study, we investigated the role of hypoxia in the development of chronic inflammatory bowel disease (IBD), focusing on its impact on the HIF-1α signaling pathway through the upregulation of lipocalin 2 (LCN2). Using a murine model of colitis induced by sodium dextran sulfate (DSS) under hypoxic conditions, transcriptome sequencing revealed LCN2 as a key gene involved in hypoxia-mediated exacerbation of colitis. Bioinformatics analysis highlighted the involvement of crucial pathways, including HIF-1α and glycolysis, in the inflammatory process. Immune infiltration analysis demonstrated the polarization of M1 macrophages in response to hypoxic stimulation. In vitro studies using RAW264.7 cells further elucidated the exacerbation of inflammation and its impact on M1 macrophage polarization under hypoxic conditions. LCN2 knockout cells reversed hypoxia-induced inflammatory responses, and the HIF-1α pathway activator dimethyloxaloylglycine (DMOG) confirmed LCN2's role in mediating inflammation via the HIF-1α-induced glycolysis pathway. In a DSS-induced colitis mouse model, oral administration of LCN2-silencing lentivirus and DMOG under hypoxic conditions validated the exacerbation of colitis. Evaluation of colonic tissues revealed altered macrophage polarization, increased levels of inflammatory factors, and activation of the HIF-1α and glycolysis pathways. In conclusion, our findings suggest that hypoxia exacerbates colitis by modulating the HIF-1α pathway through LCN2, influencing M1 macrophage polarization in glycolysis. This study contributes to a better understanding of the mechanisms underlying IBD, providing potential therapeutic targets for intervention.
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Affiliation(s)
- Yun-Han Yang
- Department of Gastroenterology, Guizhou Inflammatory Bowel Disease Research Center, National Institution of Drug Clinical Trial, Guizhou Provincial People's Hospital, Medical College of Guizhou University, No.83 Zhongshan East Road, Guiyang, 550002, Guizhou Province, China
| | - Fang Yan
- Department of Gastroenterology, Guizhou Inflammatory Bowel Disease Research Center, National Institution of Drug Clinical Trial, Guizhou Provincial People's Hospital, Medical College of Guizhou University, No.83 Zhongshan East Road, Guiyang, 550002, Guizhou Province, China
| | - Peng-Shuang Shi
- Department of Gastroenterology, Guizhou Inflammatory Bowel Disease Research Center, National Institution of Drug Clinical Trial, Guizhou Provincial People's Hospital, Medical College of Guizhou University, No.83 Zhongshan East Road, Guiyang, 550002, Guizhou Province, China
| | - Liu-Chan Yang
- Department of Gastroenterology, Guizhou Inflammatory Bowel Disease Research Center, National Institution of Drug Clinical Trial, Guizhou Provincial People's Hospital, Medical College of Guizhou University, No.83 Zhongshan East Road, Guiyang, 550002, Guizhou Province, China
| | - De-Jun Cui
- Department of Gastroenterology, Guizhou Inflammatory Bowel Disease Research Center, National Institution of Drug Clinical Trial, Guizhou Provincial People's Hospital, Medical College of Guizhou University, No.83 Zhongshan East Road, Guiyang, 550002, Guizhou Province, China.
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Zorgetto-Pinheiro VA, Kuff HM, Machado GT, Guimarães RCA, Pott A, Campos RP, Nascimento VA, Bogo D. Biotechnological and socio-environmental potential of Campomanesia adamantium (Myrtaceae): an interdisciplinary review. BRAZ J BIOL 2023; 83:e273473. [PMID: 38126629 DOI: 10.1590/1519-6984.273473] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2023] [Accepted: 07/11/2023] [Indexed: 12/23/2023] Open
Abstract
Guavira (Campomanesia adamantium, Myrtaceae) is a native fruit from the Brazilian Cerrado savanna and is socio-economically important for the indigenous and traditional people living in the Central-West. This is a bibliographic review of the biological properties of guavira and its derivatives, and, after discussing experimental studies, an interdisciplinary approach is conducted highlighting the im-portance of Agroforestry Systems as an ecological restoration tool to leverage the production chain of guavira while providing ecosystem services. Many research groups studied effects of polyphenols and other bioactive compounds and biological properties of this fruit and other plant parts such as antibiotic, antioxidant, anti-inflammatory, anti-hyperlipidemic, anti-diarrheic and antitumoral activities, cardiovascular and hepatic protection and action against neuropathic pain. Besides, guavira by-products benefit poultry intestinal health, similarly to antibiotics added to their feed. Furthermore, several biotechnological products were found, like pulp flour, seasoning from the peel, sunscreen, and seed oil similar to olive oil with pharmaceutical and industrial potential. We conclude by emphasizing the importance of guavira for restoration and preservation of the threatened Brazilian Cerrado, and for the socio-environmental development of family agriculture. The same approach and study are welcome and necessary in other regions and domains worldwide having their native flora as means for a restorative end.
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Affiliation(s)
- V A Zorgetto-Pinheiro
- Universidade Federal de Mato Grosso do Sul - UFMS, Faculdade de Medicina - FAMED, Programa de Pós-graduação em Saúde e Desenvolvimento na Região Centro-Oeste - PPGSD, Campo Grande, MS, Brasil
| | - H M Kuff
- Universidade Federal de Mato Grosso do Sul - UFMS, Faculdade de Medicina - FAMED, Programa de Pós-graduação em Saúde e Desenvolvimento na Região Centro-Oeste - PPGSD, Campo Grande, MS, Brasil
| | - G T Machado
- Universidade Federal de Mato Grosso do Sul - UFMS, Faculdade de Ciências Farmacêuticas, Alimentos e Nutrição - FACFAN, Campo Grande, MS, Brasil
| | - R C A Guimarães
- Universidade Federal de Mato Grosso do Sul - UFMS, Faculdade de Medicina - FAMED, Programa de Pós-graduação em Saúde e Desenvolvimento na Região Centro-Oeste - PPGSD, Campo Grande, MS, Brasil
| | - A Pott
- Universidade Federal de Mato Grosso do Sul - UFMS, Instituto de Biociências - INBIO, Laboratório de Botânica, Campo Grande, MS, Brasil
| | - R P Campos
- Universidade Federal de Mato Grosso do Sul - UFMS, Faculdade de Ciências Farmacêuticas, Alimentos e Nutrição - FACFAN, Campo Grande, MS, Brasil
| | - V A Nascimento
- Universidade Federal de Mato Grosso do Sul - UFMS, Faculdade de Medicina - FAMED, Programa de Pós-graduação em Saúde e Desenvolvimento na Região Centro-Oeste - PPGSD, Campo Grande, MS, Brasil
| | - D Bogo
- Universidade Federal de Mato Grosso do Sul - UFMS, Faculdade de Medicina - FAMED, Programa de Pós-graduação em Saúde e Desenvolvimento na Região Centro-Oeste - PPGSD, Campo Grande, MS, Brasil
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Interactions between Dietary Micronutrients, Composition of the Microbiome and Efficacy of Immunotherapy in Cancer Patients. Cancers (Basel) 2022; 14:cancers14225577. [PMID: 36428677 PMCID: PMC9688200 DOI: 10.3390/cancers14225577] [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: 10/17/2022] [Revised: 11/07/2022] [Accepted: 11/11/2022] [Indexed: 11/16/2022] Open
Abstract
The effectiveness of immunotherapy in cancer patients depends on the activity of the host's immune system. The intestinal microbiome is a proven immune system modulator, which plays an important role in the development of many cancers and may affect the effectiveness of anti-cancer therapy. The richness of certain bacteria in the gut microbiome (e.g., Bifidobacterium spp., Akkermanisa muciniphila and Enterococcus hire) improves anti-tumor specific immunity and the response to anti-PD-1 or anti-PD-L1 immunotherapy by activating antigen-presenting cells and cytotoxic T cells within the tumor. Moreover, micronutrients affect directly the activities of the immune system or regulate their function by influencing the composition of the microbiome. Therefore, micronutrients can significantly influence the effectiveness of immunotherapy and the development of immunorelated adverse events. In this review, we describe the relationship between the supply of microelements and the abundance of various bacteria in the intestinal microbiome and the effectiveness of immunotherapy in cancer patients. We also point to the function of the immune system in the case of shifts in the composition of the microbiome and disturbances in the supply of microelements. This may in the future become a therapeutic target supporting the effects of immunotherapy in cancer patients.
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Machate DJ, Melo ESP, de Oliveira LCS, Bogo D, Michels FS, Pott A, Cavalheiro LF, Guimarães RDCA, Freitas KDC, Hiane PA, Caires ARL, Vilela MLB, Oliveira RJ, do Nascimento VA. Oxidative stability and elemental analysis of sunflower (Helianthus annuus) edible oil produced in Brazil using a domestic extraction machine. Front Nutr 2022; 9:977813. [PMID: 36245529 PMCID: PMC9563224 DOI: 10.3389/fnut.2022.977813] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2022] [Accepted: 09/07/2022] [Indexed: 11/13/2022] Open
Abstract
The consumption of regular vegetable oils has been linked to energy acquisition, nutritional benefits, health improvement, and the regulation of metabolic diseases. This study evaluated fatty acids composition, physicochemical, thermal, oxidative, and optical properties, and quantified trace elements in the sunflower oil extracted by a domestic cold-press machine. The oil presented linoleic (54.00%) and oleic (37.29%) primary unsaturated fatty acids (91.67%), in which atherogenic (0.05), thrombogenic (0.16), hypocholesterolemic/hypercholesterolemic (21.97), peroxide (16.16), saponification (141.80), and relative density indices (0.92) demonstrated to be suitable for human consumption and possible health promotion. In addition, the concentrations of trace elements by ICP OES were ordered Zn > Fe > Al > Cu > Mn > Cr. Concentrations of Zn, Fe, Al, Cu, and Mn were lower than FAO/WHO and DRI/AI limits, while Cr concentrations exceeded the FAO/WHO limits, which can be used as an indicator of the polluted ambiance. Sunflower oil quantities daily consumption were calculated by taking into account non-carcinogenic risk (CR < 10−4), and total non-carcinogenic hazard index (HI < 1). Based on trace elements determined in this study, the suitable quantity of sunflower oil consumption varies according to individuals aged 8, 18, and 30 years and will be deemed 0.61, 1.46, and 1.65 g/kg, respectively, attending HI = 0.99 and CR < 10−4.
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Affiliation(s)
- David Johane Machate
- Graduate Program in Materials Science, Federal University of Mato Grosso do Sul, Campo Grande, Brazil
| | - Elaine S. P. Melo
- Group of Spectroscopy and Bioinformatics Applied Biodiversity and Health (GEBABS), Graduate Program in Health and Development in the Central-West Region of Brazil, Federal University of Mato Grosso do Sul, Campo Grande, Brazil
| | | | - Danielle Bogo
- Post-graduate Program in Health and Development in the Mid-West Region, Federal University of Mato Grosso do Sul, Campo Grande, MS, Brazil
| | - Flávio S. Michels
- Optics and Photonics Group, Institute of Physics, Federal University of Mato Grosso do Sul, Campo Grande, MS, Brazil
| | - Arnildo Pott
- Graduate Program in Biotechnology and Biodiversity in the Central-West Region, Federal University of Mato Grosso do Sul, Campo Grande, MS, Brazil
| | - Leandro F. Cavalheiro
- Chemistry Institute, Federal University of Mato Grosso do Sul, Campo Grande, MS, Brazil
| | | | - Karine de Cássia Freitas
- Post-graduate Program in Health and Development in the Mid-West Region, Federal University of Mato Grosso do Sul, Campo Grande, MS, Brazil
| | - Priscila Aiko Hiane
- Post-graduate Program in Health and Development in the Mid-West Region, Federal University of Mato Grosso do Sul, Campo Grande, MS, Brazil
| | - Anderson R. L. Caires
- Optics and Photonics Group, Institute of Physics, Federal University of Mato Grosso do Sul, Campo Grande, MS, Brazil
| | - Marcelo Luiz Brandão Vilela
- Group of Spectroscopy and Bioinformatics Applied Biodiversity and Health (GEBABS), Graduate Program in Health and Development in the Central-West Region of Brazil, Federal University of Mato Grosso do Sul, Campo Grande, Brazil
| | - Rodrigo Juliano Oliveira
- Post-graduate Program in Health and Development in the Mid-West Region, Federal University of Mato Grosso do Sul, Campo Grande, MS, Brazil
| | - Valter Aragão do Nascimento
- Graduate Program in Materials Science, Federal University of Mato Grosso do Sul, Campo Grande, Brazil
- Group of Spectroscopy and Bioinformatics Applied Biodiversity and Health (GEBABS), Graduate Program in Health and Development in the Central-West Region of Brazil, Federal University of Mato Grosso do Sul, Campo Grande, Brazil
- *Correspondence: Valter Aragão do Nascimento
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