1
|
Yang W, Arora M, Han HW, Jiang W, Kim DM, Ai W, Pan Q, Kumar MNVR, Brashear WA, Sun Y, Guo S. ZnPP-laden nanoparticles improve glucose homeostasis and chronic inflammation during obesity. Br J Pharmacol 2024; 181:2886-2904. [PMID: 38679457 DOI: 10.1111/bph.16356] [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: 07/18/2023] [Revised: 01/16/2024] [Accepted: 02/09/2024] [Indexed: 05/01/2024] Open
Abstract
BACKGROUND AND PURPOSE Chronic inflammation plays a pivotal role in the development of Type 2 diabetes mellitus (T2DM). Previous studies have shown that haem oxygenase-1 (HO-1) plays a proinflammatory role during metabolic stress, suggesting that HO-1 inhibition could be an effective strategy to treat T2DM. However, the application of HO-1 inhibitors is restricted due to solubility-limited bioavailability. In this study, we encapsulated the HO-1 inhibitor, zinc protoporphyrin IX (ZnPP), within nanoparticles and investigated their role in regulating glucose homeostasis and chronic inflammation during obesity. EXPERIMENTAL APPROACH We delivered DMSO-dissolved ZnPP (DMSO-ZnPP) and ZnPP-laden nanoparticles (Nano-ZnPP) to diet-induced obese male mice for 6 weeks. Glucose and insulin tolerance tests were carried out, liver and adipose tissue gene expression profiles analysed, and systemic inflammation analysed using flow cytometry. KEY RESULTS Nanoparticles significantly increased the delivery efficiency of ZnPP in both cells and mice. In mice with diet-induced obesity, inhibition of HO-1 by Nano-ZnPP significantly decreased adiposity, increased insulin sensitivity, and improved glucose tolerance. Moreover, Nano-ZnPP treatment attenuated both local and systemic inflammatory levels during obesity. Mechanistically, Nano-ZnPP significantly attenuated glucagon, TNF, and fatty acid synthesis signalling pathways in the liver. In white adipose tissue, the oxidative phosphorylation signalling pathway was enhanced and the inflammation signalling pathway diminished by Nano-ZnPP. Our results show that Nano-ZnPP has better effects on the improvement of glucose homeostasis and attenuation of chronic inflammation, than those of DMSO-dissolved ZnPP. CONCLUSIONS AND IMPLICATIONS These findings indicate that ZnPP-laden nanoparticles are potential therapeutic agents for treating T2DM.
Collapse
Affiliation(s)
- Wanbao Yang
- Department of Nutrition, College of Agriculture and Life Sciences, Texas A&M University, College Station, Texas, USA
| | - Meenakshi Arora
- College of Community Health Sciences, The University of Alabama, Tuscaloosa, Alabama, USA
- The Center for Convergent Bioscience and Medicine (CCBM), The University of Alabama, Tuscaloosa, Alabama, USA
| | - Hye Won Han
- Department of Nutrition, College of Agriculture and Life Sciences, Texas A&M University, College Station, Texas, USA
| | - Wen Jiang
- Department of Nutrition, College of Agriculture and Life Sciences, Texas A&M University, College Station, Texas, USA
| | - Da Mi Kim
- Department of Nutrition, College of Agriculture and Life Sciences, Texas A&M University, College Station, Texas, USA
| | - Weiqi Ai
- Department of Nutrition, College of Agriculture and Life Sciences, Texas A&M University, College Station, Texas, USA
| | - Quan Pan
- Department of Nutrition, College of Agriculture and Life Sciences, Texas A&M University, College Station, Texas, USA
| | - M N V Ravi Kumar
- College of Community Health Sciences, The University of Alabama, Tuscaloosa, Alabama, USA
- The Center for Convergent Bioscience and Medicine (CCBM), The University of Alabama, Tuscaloosa, Alabama, USA
| | - Wesley A Brashear
- High Performance Research Computing, Texas A&M University, College Station, Texas, USA
| | - Yuxiang Sun
- Department of Nutrition, College of Agriculture and Life Sciences, Texas A&M University, College Station, Texas, USA
| | - Shaodong Guo
- Department of Nutrition, College of Agriculture and Life Sciences, Texas A&M University, College Station, Texas, USA
| |
Collapse
|
2
|
Cao X, Chen L, Lu K, Yu T, Xia H, Wang S, Sun G, Liu P, Liao W. Egg white-derived peptides reduced blood glucose in high-fat-diet and low-dose streptozotocin-induced type 2 diabetic mice via regulating the hepatic gluconeogenic signaling and metabolic profile. Food Funct 2024; 15:7003-7016. [PMID: 38855929 DOI: 10.1039/d4fo00725e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/11/2024]
Abstract
Food proteins are considered an ideal source for the identification of bioactive peptides with the potential to intervene in nutrition-related chronic diseases such as cardiovascular disease, obesity, and diabetes. Egg white-derived peptides (EWPs) have been shown to improve glucose tolerance in insulin-resistant rats. However, underlying mechanisms are to be elucidated. Therefore, we hypothesized that EWP exerts a hypoglycemic effect by regulating hepatic glucose homeostasis. Our results showed that 7 weeks of EWP treatment reduced the fasting blood glucose in T2DM mice and the inhibition of the liver gluconeogenic pathway was involved in the mechanisms of actions. Using the untargeted metabolomics technique, we found that EWP treatment also altered the hepatic metabolic profile in T2DM mice, in which, the role of fatty acid esters of hydroxy fatty acids in mediating the hypoglycemic effect of EWPs might be pivotal.
Collapse
Affiliation(s)
- Xinyi Cao
- Key Laboratory of Environmental Medicine and Engineering of Ministry of Education, and Department of Nutrition and Food Hygiene, School of Public Health, Southeast University, Nanjing 210009, P.R. China.
| | - Liang Chen
- Public Service Platform of South China Sea for R&D Marine Biomedicine Resources, The Marine Biomedical Research Institute, Guangdong Medical University, Zhanjiang, Guangdong, 524023, China
| | - Kun Lu
- Key Laboratory of Environmental Medicine and Engineering of Ministry of Education, and Department of Nutrition and Food Hygiene, School of Public Health, Southeast University, Nanjing 210009, P.R. China.
| | - Tingqing Yu
- Key Laboratory of Environmental Medicine and Engineering of Ministry of Education, and Department of Nutrition and Food Hygiene, School of Public Health, Southeast University, Nanjing 210009, P.R. China.
| | - Hui Xia
- Key Laboratory of Environmental Medicine and Engineering of Ministry of Education, and Department of Nutrition and Food Hygiene, School of Public Health, Southeast University, Nanjing 210009, P.R. China.
| | - Shaokang Wang
- Key Laboratory of Environmental Medicine and Engineering of Ministry of Education, and Department of Nutrition and Food Hygiene, School of Public Health, Southeast University, Nanjing 210009, P.R. China.
| | - Guiju Sun
- Key Laboratory of Environmental Medicine and Engineering of Ministry of Education, and Department of Nutrition and Food Hygiene, School of Public Health, Southeast University, Nanjing 210009, P.R. China.
| | - Ping Liu
- Department of Food Science and Technology, Jiangsu Agri-Animal Husbandry Vocational College, Taizhou, 225300, P.R. China
| | - Wang Liao
- Key Laboratory of Environmental Medicine and Engineering of Ministry of Education, and Department of Nutrition and Food Hygiene, School of Public Health, Southeast University, Nanjing 210009, P.R. China.
| |
Collapse
|
3
|
Bolandghamat S, Behnam‐Rassouli M. Iron role paradox in nerve degeneration and regeneration. Physiol Rep 2024; 12:e15908. [PMID: 38176709 PMCID: PMC10766496 DOI: 10.14814/phy2.15908] [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: 10/07/2023] [Revised: 12/02/2023] [Accepted: 12/14/2023] [Indexed: 01/06/2024] Open
Abstract
Iron accumulates in the neural tissue during peripheral nerve degeneration. Some studies have already been suggested that iron facilitates Wallerian degeneration (WD) events such as Schwann cell de-differentiation. On the other hand, intracellular iron levels remain elevated during nerve regeneration and gradually decrease. Iron enhances Schwann cell differentiation and axonal outgrowth. Therefore, there seems to be a paradox in the role of iron during nerve degeneration and regeneration. We explain this contradiction by suggesting that the increase in intracellular iron concentration during peripheral nerve degeneration is likely to prepare neural cells for the initiation of regeneration. Changes in iron levels are the result of changes in the expression of iron homeostasis proteins. In this review, we will first discuss the changes in the iron/iron homeostasis protein levels during peripheral nerve degeneration and regeneration and then explain how iron is related to nerve regeneration. This data may help better understand the mechanisms of peripheral nerve repair and find a solution to prevent or slow the progression of peripheral neuropathies.
Collapse
Affiliation(s)
- Samira Bolandghamat
- Department of Biology, Faculty of ScienceFerdowsi University of MashhadMashhadIran
| | | |
Collapse
|
4
|
Liao W, Cao X, Xia H, Wang S, Chen L, Sun G. Pea protein hydrolysate reduces blood glucose in high-fat diet and streptozotocin-induced diabetic mice. Front Nutr 2023; 10:1298046. [PMID: 38156281 PMCID: PMC10754521 DOI: 10.3389/fnut.2023.1298046] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2023] [Accepted: 11/29/2023] [Indexed: 12/30/2023] Open
Abstract
Introduction Food proteins have been recognized as an ideal source to release bioactive peptides with the potential to intervene nutrition related chronic diseases, such as cardiovascular diseases, obesity and diabetes. Our previous studies showed that pea protein hydrolysate (PPH) could suppress hepatic glucose production in hepatic cells via inhibiting the gluconeogenic signaling. Thus, we hypothesized that PPH could play the hypoglycemic role in vivo. Methods In the present study, the mice model with type 2 diabetic mellitus (T2DM) was developed by high-fat diet and low dose of streptozotocin injections. PPH was administered orally with a dosage of 1000 mg/kg body weight for 9 weeks, followed by the downstream biomedical analyses. Results The results showed that the 9-week treatment of PPH could reduce fasting blood glucose by 29.6% and improve glucose tolerance in the T2DM mice. The associated mechanisms included suppression of the gluconeogenic pathway, activation of the insulin signaling and modulation of the renin angiotensin system in the liver of the diabetic mice. In addition, the levels of pro-inflammatory markers in both liver and serum were reduced by the PPH treatment. Conclusion The hypoglycemic effect of PPH in T2DM mice was demonstrated in the present study. Findings from this study could provide rationale to incorporate PPH into functional foods or nutraceuticals for glycemic control.
Collapse
Affiliation(s)
- Wang Liao
- Key Laboratory of Environmental Medicine and Engineering of Ministry of Education, Department of Nutrition and Food Hygiene, School of Public Health, Southeast University, Nanjing, China
| | - Xinyi Cao
- Key Laboratory of Environmental Medicine and Engineering of Ministry of Education, Department of Nutrition and Food Hygiene, School of Public Health, Southeast University, Nanjing, China
| | - Hui Xia
- Key Laboratory of Environmental Medicine and Engineering of Ministry of Education, Department of Nutrition and Food Hygiene, School of Public Health, Southeast University, Nanjing, China
| | - Shaokang Wang
- Key Laboratory of Environmental Medicine and Engineering of Ministry of Education, Department of Nutrition and Food Hygiene, School of Public Health, Southeast University, Nanjing, China
| | - Liang Chen
- Public Service Platform of South China Sea for R&D Marine Biomedicine Resources, The Marine Biomedical Research Institute, Guangdong Medical University, Zhanjiang, China
| | - Guiju Sun
- Key Laboratory of Environmental Medicine and Engineering of Ministry of Education, Department of Nutrition and Food Hygiene, School of Public Health, Southeast University, Nanjing, China
| |
Collapse
|
5
|
Yang W, Jiang W, Guo S. Regulation of Macronutrients in Insulin Resistance and Glucose Homeostasis during Type 2 Diabetes Mellitus. Nutrients 2023; 15:4671. [PMID: 37960324 PMCID: PMC10647592 DOI: 10.3390/nu15214671] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2023] [Revised: 10/30/2023] [Accepted: 11/02/2023] [Indexed: 11/15/2023] Open
Abstract
Insulin resistance is an important feature of metabolic syndrome and a precursor of type 2 diabetes mellitus (T2DM). Overnutrition-induced obesity is a major risk factor for the development of insulin resistance and T2DM. The intake of macronutrients plays a key role in maintaining energy balance. The components of macronutrients distinctly regulate insulin sensitivity and glucose homeostasis. Precisely adjusting the beneficial food compound intake is important for the prevention of insulin resistance and T2DM. Here, we reviewed the effects of different components of macronutrients on insulin sensitivity and their underlying mechanisms, including fructose, dietary fiber, saturated and unsaturated fatty acids, and amino acids. Understanding the diet-gene interaction will help us to better uncover the molecular mechanisms of T2DM and promote the application of precision nutrition in practice by integrating multi-omics analysis.
Collapse
Affiliation(s)
| | | | - Shaodong Guo
- Department of Nutrition, College of Agriculture and Life Sciences, Texas A&M University, College Station, TX 77843, USA; (W.Y.); (W.J.)
| |
Collapse
|
6
|
Chen Y, Pan Q, Liao W, Ai W, Yang S, Guo S. Transcription Factor Forkhead Box O1 Mediates Transforming Growth Factor-β1-Induced Apoptosis in Hepatocytes. THE AMERICAN JOURNAL OF PATHOLOGY 2023; 193:1143-1155. [PMID: 37263346 PMCID: PMC10477955 DOI: 10.1016/j.ajpath.2023.05.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/08/2023] [Revised: 04/27/2023] [Accepted: 05/18/2023] [Indexed: 06/03/2023]
Abstract
Dysregulation of hepatocyte apoptosis is associated with several types of chronic liver diseases. Transforming growth factor-β1 (TGF-β1) is a well-known pro-apoptotic factor in the liver, which constitutes a receptor complex composed of TGF-β receptor I and II, along with transcription factor Smad proteins. As a member of the forkhead box O (Foxo) class of transcription factors, Foxo1 is a predominant regulator of hepatic glucose production and apoptosis. This study investigated the potential relationship between TGF-β1 signaling and Foxo1 in control of apoptosis in hepatocytes. TGF-β1 induced hepatocyte apoptosis in a Foxo1-dependent manner in hepatocytes isolated from both wild-type and liver-specific Foxo1 knockout mice. TGF-β1 activated protein kinase A through TGF-β receptor I-Smad3, followed by phosphorylation of Foxo1 at Ser273 in promotion of apoptosis in hepatocytes. Moreover, Smad3 overexpression in the liver of mice promoted the levels of phosphorylated Foxo1-S273, total Foxo1, and a Foxo1-target pro-apoptotic gene Bim, which eventually resulted in hepatocyte apoptosis. The study further demonstrated a crucial role of Foxo1-S273 phosphorylation in the pro-apoptotic effect of TGF-β1 by using hepatocytes isolated from Foxo1-S273A/A knock-in mice, in which the phosphorylation of Foxo1-S273 was disrupted. Taken together, this study established a novel role of TGF-β1→protein kinase A→Foxo1 signaling cascades in control of hepatocyte survival.
Collapse
Affiliation(s)
- Yunmei Chen
- Department of Nutrition, Texas A&M University, College Station, Texas
| | - Quan Pan
- Department of Nutrition, Texas A&M University, College Station, Texas
| | - Wang Liao
- Department of Nutrition, Texas A&M University, College Station, Texas
| | - Weiqi Ai
- Department of Nutrition, Texas A&M University, College Station, Texas
| | - Sijun Yang
- Institute of Animal Model for Human Disease, Wuhan University, Wuhan, China
| | - Shaodong Guo
- Department of Nutrition, Texas A&M University, College Station, Texas.
| |
Collapse
|
7
|
Pan Q, Ai W, Chen Y, Kim DM, Shen Z, Yang W, Jiang W, Sun Y, Safe S, Guo S. Reciprocal Regulation of Hepatic TGF-β1 and Foxo1 Controls Gluconeogenesis and Energy Expenditure. Diabetes 2023; 72:1193-1206. [PMID: 37343276 PMCID: PMC10450826 DOI: 10.2337/db23-0180] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/03/2023] [Accepted: 06/13/2023] [Indexed: 06/23/2023]
Abstract
Obesity and insulin resistance are risk factors for the pathogenesis of type 2 diabetes (T2D). Here, we report that hepatic TGF-β1 expression positively correlates with obesity and insulin resistance in mice and humans. Hepatic TGF-β1 deficiency decreased blood glucose levels in lean mice and improved glucose and energy dysregulations in diet-induced obese (DIO) mice and diabetic mice. Conversely, overexpression of TGF-β1 in the liver exacerbated metabolic dysfunctions in DIO mice. Mechanistically, hepatic TGF-β1 and Foxo1 are reciprocally regulated: fasting or insulin resistance caused Foxo1 activation, increasing TGF-β1 expression, which, in turn, activated protein kinase A, stimulating Foxo1-S273 phosphorylation to promote Foxo1-mediated gluconeogenesis. Disruption of TGF-β1→Foxo1→TGF-β1 looping by deleting TGF-β1 receptor II in the liver or by blocking Foxo1-S273 phosphorylation ameliorated hyperglycemia and improved energy metabolism in adipose tissues. Taken together, our studies reveal that hepatic TGF-β1→Foxo1→TGF-β1 looping could be a potential therapeutic target for prevention and treatment of obesity and T2D. ARTICLE HIGHLIGHTS Hepatic TGF-β1 levels are increased in obese humans and mice. Hepatic TGF-β1 maintains glucose homeostasis in lean mice and causes glucose and energy dysregulations in obese and diabetic mice. Hepatic TGF-β1 exerts an autocrine effect to promote hepatic gluconeogenesis via cAMP-dependent protein kinase-mediated Foxo1 phosphorylation at serine 273, endocrine effects on brown adipose tissue action, and inguinal white adipose tissue browning (beige fat), causing energy imbalance in obese and insulin-resistant mice. TGF-β1→Foxo1→TGF-β1 looping in hepatocytes plays a critical role in controlling glucose and energy metabolism in health and disease.
Collapse
Affiliation(s)
- Quan Pan
- Department of Nutrition, College of Agriculture and Life Sciences, Texas A&M University, College Station, TX
| | - Weiqi Ai
- Department of Nutrition, College of Agriculture and Life Sciences, Texas A&M University, College Station, TX
| | - Yunmei Chen
- Department of Nutrition, College of Agriculture and Life Sciences, Texas A&M University, College Station, TX
| | - Da Mi Kim
- Department of Nutrition, College of Agriculture and Life Sciences, Texas A&M University, College Station, TX
| | - Zheng Shen
- Department of Nutrition, College of Agriculture and Life Sciences, Texas A&M University, College Station, TX
| | - Wanbao Yang
- Department of Nutrition, College of Agriculture and Life Sciences, Texas A&M University, College Station, TX
| | - Wen Jiang
- Department of Nutrition, College of Agriculture and Life Sciences, Texas A&M University, College Station, TX
| | - Yuxiang Sun
- Department of Nutrition, College of Agriculture and Life Sciences, Texas A&M University, College Station, TX
| | - Stephen Safe
- Department of Veterinary Physiology and Pharmacology, Texas A&M University, College Station, TX
| | - Shaodong Guo
- Department of Nutrition, College of Agriculture and Life Sciences, Texas A&M University, College Station, TX
| |
Collapse
|
8
|
Li T, Gao SJ. KSHV hijacks FoxO1 to promote cell proliferation and cellular transformation by antagonizing oxidative stress. J Med Virol 2023; 95:e28676. [PMID: 36929740 PMCID: PMC10285692 DOI: 10.1002/jmv.28676] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2023] [Accepted: 03/14/2023] [Indexed: 03/18/2023]
Abstract
Reactive oxygen species (ROS) are a group of a highly short-lived molecules that control diverse behaviors of cells. Normal cells maintain ROS balance to ensure their functions. Because of oncogenic stress, cancer cells often have excessive ROS, also known as oxidative stress, which are often counteracted by enhanced antioxidant systems to maintain redox homeostasis. Kaposi's sarcoma-associated herpesvirus (KSHV) is an oncogenic virus associated with Kaposi's sarcoma (KS), which manifests hyper inflammation and oxidative stress as the hallmarks. We have previously shown that excessive ROS can disrupt KSHV latency by inducing viral lytic replication, leading to cell death. Paradoxically, most KS tumor cells are latently infected by KSHV in a highly inflammatory and oxidative stress tumor microenvironment, which is in part due to the activation of alternative complement and TLR4 pathways, indicating the existence of an enhanced antioxidant defense system in KS tumor cells. In this study, we show that KSHV upregulates antioxidant genes, including SOD2 and CAT by hijacking the forkhead box protein O1 (FoxO1), to maintain intracellular ROS level. Moreover, the fine-tuned balance of ROS level in KSHV-transformed cells is essential for cell survival. Consequently, KSHV-transformed cells are extremely sensitive to exogenous ROS insult such as treatment with a low level of hydrogen peroxide (H2 O2 ). Either chemical inhibition or knockdown of FoxO1 by short interfering RNAs decreases the expression of antioxidant genes and subsequently increases the intracellular ROS level in KSHV-transformed cells, resulting in the inhibition of cell proliferation and colony formation in soft agar. Mechanistically, KSHV-encoded microRNAs and vFLIP upregulate FoxO1 by activating the NF-κB pathway. These results reveal a novel mechanism by which an oncogenic virus counteracts oxidative stress by upregulating FoxO1, which is essential for KSHV-induced cell proliferation and cellular transformation. Therefore, FoxO1 might be a potential therapeutic target for KSHV-related malignancies.
Collapse
Affiliation(s)
- Tingting Li
- Cancer Virology Program, UPMC Hillman Cancer Center, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania, USA
- Department of Microbiology and Molecular Genetics, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania, USA
- Current address: Hunan Provincial Key Laboratory of Animal Intestinal Function and Regulation, Laboratory of Animal Nutrition and Human Health, College of Life Sciences, Hunan Normal University, Changsha, China
| | - Shou-Jiang Gao
- Cancer Virology Program, UPMC Hillman Cancer Center, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania, USA
- Department of Microbiology and Molecular Genetics, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania, USA
| |
Collapse
|
9
|
Abstract
High iron is a risk factor for type 2 diabetes mellitus (T2DM) and affects most of its cardinal features: decreased insulin secretion, insulin resistance, and increased hepatic gluconeogenesis. This is true across the normal range of tissue iron levels and in pathologic iron overload. Because of iron's central role in metabolic processes (e.g., fuel oxidation) and metabolic regulation (e.g., hypoxia sensing), iron levels participate in determining metabolic rates, gluconeogenesis, fuel choice, insulin action, and adipocyte phenotype. The risk of diabetes related to iron is evident in most or all tissues that determine diabetes phenotypes, with the adipocyte, beta cell, and liver playing central roles. Molecular mechanisms for these effects are diverse, although there may be integrative pathways at play. Elucidating these pathways has implications not only for diabetes prevention and treatment, but also for the pathogenesis of other diseases that are, like T2DM, associated with aging, nutrition, and iron.
Collapse
Affiliation(s)
- Alexandria V Harrison
- Department of Internal Medicine, Wake Forest University School of Medicine, Winston-Salem, North Carolina, USA;
| | - Felipe Ramos Lorenzo
- Department of Internal Medicine, Wake Forest University School of Medicine, Winston-Salem, North Carolina, USA;
- Department of Veterans Affairs, W.G. (Bill) Hefner Veterans Affairs Medical Center, Salisbury, North Carolina, USA
| | - Donald A McClain
- Department of Internal Medicine, Wake Forest University School of Medicine, Winston-Salem, North Carolina, USA;
- Department of Veterans Affairs, W.G. (Bill) Hefner Veterans Affairs Medical Center, Salisbury, North Carolina, USA
| |
Collapse
|
10
|
Liu X, Kong F, Xiao N, Li X, Zhang M, Lv F, Liu X, Kong X, Bi J, Lu X, Kong D, Hao G, Zhou L, Pan G. Prenylated indole-terpenoids with antidiabetic activities from Penicillium sp. HFF16 from the rhizosphere soil of Cynanchum bungei Decne. Front Microbiol 2023; 14:1099103. [PMID: 36937284 PMCID: PMC10018213 DOI: 10.3389/fmicb.2023.1099103] [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: 11/15/2022] [Accepted: 02/06/2023] [Indexed: 03/06/2023] Open
Abstract
Finding novel and effective suppression of hepatic glucagon response antidiabetic compounds is urgently required for the development of new drugs against diabetes. Fungi are well known for their ability to produce new bioactive secondary metabolites. In this study, four new prenylated indole-terpenoids (1-4), named encindolenes I-L, as well as a known analogue (5), were isolated from the fungus Penicillium sp. HFF16from the rhizosphere soil of Cynanchum bungei Decne. The structures of the compounds were elucidated by spectroscopic data and ECD analysis. In the antidiabetic activity assay, compounds 1-5 could inhibit glucagon-induced hepatic glucose output with EC50 values of 67.23, 102.1, 49.46, 25.20, and 35.96 μM, respectively, and decrease the intracellular cAMP contents in primary hepatocytes.
Collapse
Affiliation(s)
- Xijin Liu
- College of Life Sciences, Shandong First Medical University & Shandong Academy of Medical Sciences, Tai'an, Shandong, China
| | - Fandong Kong
- Key Laboratory of Chemistry and Engineering of Forest Products, State Ethnic Affairs Commission, Guangxi Key Laboratory of Chemistry and Engineering of Forest Products, Guangxi Collaborative Innovation Center for Chemistry and Engineering of Forest Products, School of Chemistry and Chemical Engineering, Guangxi Minzu University, Nanning, China
| | - Na Xiao
- State Key Laboratory of Crop Biology, College of Agronomy, Shandong Agriculture University, Tai'an, Shandong, China
| | - Xiaoyu Li
- College of Life Sciences, Shandong First Medical University & Shandong Academy of Medical Sciences, Tai'an, Shandong, China
| | - Mingyu Zhang
- College of Life Sciences, Shandong First Medical University & Shandong Academy of Medical Sciences, Tai'an, Shandong, China
| | - Fujin Lv
- College of Life Sciences, Shandong First Medical University & Shandong Academy of Medical Sciences, Tai'an, Shandong, China
| | - Xiaolin Liu
- College of Life Sciences, Shandong First Medical University & Shandong Academy of Medical Sciences, Tai'an, Shandong, China
| | - Xiangchuan Kong
- College of Life Sciences, Shandong First Medical University & Shandong Academy of Medical Sciences, Tai'an, Shandong, China
| | - Jing Bi
- College of Life Sciences, Shandong First Medical University & Shandong Academy of Medical Sciences, Tai'an, Shandong, China
| | - Xinyi Lu
- College of Life Sciences, Shandong First Medical University & Shandong Academy of Medical Sciences, Tai'an, Shandong, China
| | - Daqing Kong
- College of Life Sciences, Shandong First Medical University & Shandong Academy of Medical Sciences, Tai'an, Shandong, China
| | - Gangping Hao
- College of Life Sciences, Shandong First Medical University & Shandong Academy of Medical Sciences, Tai'an, Shandong, China
| | - Liman Zhou
- Key Laboratory of Chemistry and Engineering of Forest Products, State Ethnic Affairs Commission, Guangxi Key Laboratory of Chemistry and Engineering of Forest Products, Guangxi Collaborative Innovation Center for Chemistry and Engineering of Forest Products, School of Chemistry and Chemical Engineering, Guangxi Minzu University, Nanning, China
| | - Guojun Pan
- College of Life Sciences, Shandong First Medical University & Shandong Academy of Medical Sciences, Tai'an, Shandong, China
- *Correspondence: Guojun Pan,
| |
Collapse
|
11
|
Wu X, Wei J, Yi Y, Gong Q, Gao J. Activation of Nrf2 signaling: A key molecular mechanism of protection against cardiovascular diseases by natural products. Front Pharmacol 2022; 13:1057918. [PMID: 36569290 PMCID: PMC9772885 DOI: 10.3389/fphar.2022.1057918] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2022] [Accepted: 11/24/2022] [Indexed: 12/14/2022] Open
Abstract
Cardiovascular diseases (CVD) are a group of cardiac and vascular disorders including myocardial ischemia, congenital heart disease, heart failure, hypertension, atherosclerosis, peripheral artery disease, rheumatic heart disease, and cardiomyopathies. Despite considerable progress in prophylaxis and treatment options, CVDs remain a leading cause of morbidity and mortality and impose an extremely high socioeconomic burden. Oxidative stress (OS) caused by disequilibrium in the generation of reactive oxygen species plays a crucial role in the pathophysiology of CVDs. Nuclear erythroid 2-related factor 2 (Nrf2), a transcription factor of endogenous antioxidant defense systems against OS, is considered an ideal therapeutic target for management of CVDs. Increasingly, natural products have emerged as a potential source of Nrf2 activators with cardioprotective properties and may therefore provide a novel therapeutic tool for CVD. Here, we present an updated comprehensive summary of naturally occurring products with cardioprotective properties that exert their effects by suppression of OS through activation of Nrf2 signaling, with the aim of providing useful insights for the development of therapeutic strategies exploiting natural products.
Collapse
Affiliation(s)
- Xiaoyu Wu
- Key Laboratory of Basic Pharmacology of Ministry of Education and Joint International Research Laboratory of Ethnomedicine of Ministry of Education, Zunyi Medical University, Zunyi, China,Key Laboratory of Basic Pharmacology of Guizhou Province and School of Pharmacy, Department of Pharmacology, Zunyi Medical University, Zunyi, China
| | - Jiajia Wei
- Key Laboratory of Basic Pharmacology of Ministry of Education and Joint International Research Laboratory of Ethnomedicine of Ministry of Education, Zunyi Medical University, Zunyi, China,Key Laboratory of Basic Pharmacology of Guizhou Province and School of Pharmacy, Department of Pharmacology, Zunyi Medical University, Zunyi, China
| | - Yang Yi
- Key Laboratory of Basic Pharmacology of Ministry of Education and Joint International Research Laboratory of Ethnomedicine of Ministry of Education, Zunyi Medical University, Zunyi, China,Key Laboratory of Basic Pharmacology of Guizhou Province and School of Pharmacy, Department of Pharmacology, Zunyi Medical University, Zunyi, China
| | - Qihai Gong
- Key Laboratory of Basic Pharmacology of Ministry of Education and Joint International Research Laboratory of Ethnomedicine of Ministry of Education, Zunyi Medical University, Zunyi, China,Key Laboratory of Basic Pharmacology of Guizhou Province and School of Pharmacy, Department of Pharmacology, Zunyi Medical University, Zunyi, China
| | - Jianmei Gao
- Key Laboratory of Basic Pharmacology of Ministry of Education and Joint International Research Laboratory of Ethnomedicine of Ministry of Education, Zunyi Medical University, Zunyi, China,Key Laboratory of Basic Pharmacology of Guizhou Province and School of Pharmacy, Department of Pharmacology, Zunyi Medical University, Zunyi, China,*Correspondence: Jianmei Gao,
| |
Collapse
|
12
|
Han L, Dong X, Qiu T, Dou Z, Wu L, Dai H. Enhanced sciatic nerve regeneration by relieving iron-overloading and organelle stress with the nanofibrous P(MMD-co-LA)/DFO conduits. Mater Today Bio 2022; 16:100387. [PMID: 36042854 PMCID: PMC9420382 DOI: 10.1016/j.mtbio.2022.100387] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2022] [Revised: 07/24/2022] [Accepted: 07/25/2022] [Indexed: 11/16/2022]
Abstract
Wallerian degeneration after peripheral nerve injury (PNI), that is, the autonomous degeneration of distal axons, leads to an imbalance of iron homeostasis and easily induces oxidative stress caused by iron overload. Inspired by the process of nerve degeneration and regeneration, the design of a functional electrospinning scaffold with iron chelating ability exhibited the importance of reconstructing a suitable microenvironment. Here, an electrospinning scaffold based on deferoxamine and poly(3(S)-methyl-morpholine-2,5-dione-co-lactone) (PDPLA/DFO) was constructed. This work aims to explore the promotion of nerve regeneration by the physiological regulation of the scaffold. In vitro, PDPLA/DFO films mitigated the reduction of glutathione and the inactivation of Glutathione peroxidase 4 caused by iron overload. In addition, they decreased reactive oxygen species, relieve the stress of the endoplasmic reticulum and mitochondria, and reduce cell apoptosis. In vivo, PDPLA/DFO conduits constructed the anti-inflammatory microenvironment and promoted cell survival by alleviating iron overload and organelle stress. In conclusion, PDPLA/DFO guidance conduits targeted the distal iron overload and promoted nerve regeneration. It provides novel ideas for designing nerve conduits targeting the distal microenvironment.
Collapse
|
13
|
FoxO transcription factors in mitochondrial homeostasis. Biochem J 2022; 479:525-536. [PMID: 35195252 PMCID: PMC8883485 DOI: 10.1042/bcj20210777] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2021] [Revised: 02/10/2022] [Accepted: 02/14/2022] [Indexed: 12/24/2022]
Abstract
Mitochondria play essential roles in cellular energetics, biosynthesis, and signaling transduction. Dysfunctional mitochondria have been implicated in different diseases such as obesity, diabetes, cardiovascular disease, nonalcoholic fatty liver disease, neurodegenerative disease, and cancer. Mitochondrial homeostasis is controlled by a triad of mitochondrial biogenesis, dynamics (fusion and fission), and autophagy (mitophagy). Studies have underscored FoxO transcription factors as key mitochondrial regulators. Specifically, FoxOs regulate mitochondrial biogenesis by dampening NRF1-Tfam and c-Myc-Tfam cascades directly, and inhibiting NAD-Sirt1-Pgc1α cascade indirectly by inducing Hmox1 or repressing Fxn and Urod. In addition, FoxOs mediate mitochondrial fusion (via Mfn1 and Mfn2) and fission (via Drp1, Fis1, and MIEF2), during which FoxOs elicit regulatory mechanisms at transcriptional, posttranscriptional (e.g. via miR-484/Fis1), and posttranslational (e.g. via Bnip3-calcineurin mediated Drp1 dephosphorylation) levels. Furthermore, FoxOs control mitochondrial autophagy in the stages of autophagosome formation and maturation (e.g. initiation, nucleation, and elongation), mitochondria connected to and engulfed by autophagosome (e.g. via PINK1 and Bnip3 pathways), and autophagosome-lysosome fusion to form autolysosome for cargo degradation (e.g. via Tfeb and cathepsin proteins). This article provides an up-to-date view of FoxOs regulating mitochondrial homeostasis and discusses the potential of targeting FoxOs for therapeutics.
Collapse
|
14
|
Xiao N, Xu Y, Zhang X, Li H, Zhang S, Xiao A, Yu J, Yang M, Lv F, Zhang M, Hao G, Chen G, Zhou L, Kong F, Pan G. Anti-Diabetic Indole-Terpenoids From Penicillium sp. HFF16 Isolated From the Rhizosphere Soil of Cynanchum bungei Decne. Front Chem 2022; 9:792810. [PMID: 35211458 PMCID: PMC8861352 DOI: 10.3389/fchem.2021.792810] [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: 10/11/2021] [Accepted: 12/23/2021] [Indexed: 11/13/2022] Open
Abstract
Finding novel anti-diabetic compounds with effective suppression activities against hepatic glucagon response is urgently required for the development of new drugs against diabetes. Fungi are well known for their ability to produce new bioactive secondary metabolites. As part of our ongoing research, five new indole-terpenoids (1–5), named encindolenes D-H, were isolated from the fungus Penicillium sp. HFF16 from the rhizosphere soil of Cynanchum bungei Decne. The structures of the compounds were elucidated by spectroscopic data and ECD analysis. In the anti-diabetic activity assay, compounds 1–5 could inhibit the hepatic glucose production with EC50 values of 17.6, 30.1, 21.3, 9.6, and 9.9 μM, respectively, and decrease the cAMP contents in glucagon-induced HepG2 cells.
Collapse
Affiliation(s)
- Na Xiao
- State Key Laboratory of Crop Biology, College of Agronomy, Shandong Agriculture University, Tai’an, China
| | - Yiru Xu
- College of Life Sciences, Shandong First Medical University, Shandong Academy of Medical Sciences, Tai’an, China
| | - Xinru Zhang
- College of Life Sciences, Shandong First Medical University, Shandong Academy of Medical Sciences, Tai’an, China
| | - Haonan Li
- College of Life Sciences, Shandong First Medical University, Shandong Academy of Medical Sciences, Tai’an, China
| | - Shengnan Zhang
- College of Life Sciences, Shandong First Medical University, Shandong Academy of Medical Sciences, Tai’an, China
| | - Ang Xiao
- College of Life Sciences, Shandong First Medical University, Shandong Academy of Medical Sciences, Tai’an, China
| | - Jinyi Yu
- College of Life Sciences, Shandong First Medical University, Shandong Academy of Medical Sciences, Tai’an, China
| | - Mingtian Yang
- College of Life Sciences, Shandong First Medical University, Shandong Academy of Medical Sciences, Tai’an, China
| | - Fujin Lv
- College of Life Sciences, Shandong First Medical University, Shandong Academy of Medical Sciences, Tai’an, China
| | - Mingyu Zhang
- College of Life Sciences, Shandong First Medical University, Shandong Academy of Medical Sciences, Tai’an, China
| | - Gangping Hao
- College of Life Sciences, Shandong First Medical University, Shandong Academy of Medical Sciences, Tai’an, China
| | - Guotong Chen
- Key Laboratory of Chemistry and Engineering of Forest Products, State Ethnic Affairs Commission, Guangxi Key Laboratory of Chemistry and Engineering of Forest Products, Guangxi Collaborative Innovation Center for Chemistry and Engineering of Forest Products, School of Chemistry and Chemical Engineering, Guangxi University for Nationalities, Nanning, China
| | - Liman Zhou
- Key Laboratory of Chemistry and Engineering of Forest Products, State Ethnic Affairs Commission, Guangxi Key Laboratory of Chemistry and Engineering of Forest Products, Guangxi Collaborative Innovation Center for Chemistry and Engineering of Forest Products, School of Chemistry and Chemical Engineering, Guangxi University for Nationalities, Nanning, China
| | - Fandong Kong
- Key Laboratory of Chemistry and Engineering of Forest Products, State Ethnic Affairs Commission, Guangxi Key Laboratory of Chemistry and Engineering of Forest Products, Guangxi Collaborative Innovation Center for Chemistry and Engineering of Forest Products, School of Chemistry and Chemical Engineering, Guangxi University for Nationalities, Nanning, China
- *Correspondence: Fandong Kong, ; Guojun Pan,
| | - Guojun Pan
- College of Life Sciences, Shandong First Medical University, Shandong Academy of Medical Sciences, Tai’an, China
- *Correspondence: Fandong Kong, ; Guojun Pan,
| |
Collapse
|
15
|
Wang FR, Yang L, Kong FD, Ma QY, Xie QY, Wu YG, Dai HF, Chen P, Xiao N, Zhao YX. Humulane-Type Macrocyclic Sesquiterpenoids From the Endophytic Fungus Penicillium sp. of Carica papaya. Front Chem 2021; 9:797858. [PMID: 34976955 PMCID: PMC8717546 DOI: 10.3389/fchem.2021.797858] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2021] [Accepted: 11/15/2021] [Indexed: 11/23/2022] Open
Abstract
Three new humulane-type sesquiterpenoids, penirolide A (1), penirolide B (2), and 10-acetyl-phomanoxide (3), together with three known compounds aurasperone A (4), pughiinin A (5), and cyclo(l-Leu-l-Phe) (6) were isolated from the endophytic fungus Penicillium sp. derived from the leaves of Carica papaya L. Their structures including their absolute configurations were determined based on the analysis of NMR and HRESIMS spectra, NMR chemical shifts, and ECD calculations. Compounds 2, 3, 5, and 6 significantly inhibited glucagon-induced hepatic glucose production, with EC50 values of 33.3, 36.1, 18.8, and 32.1 μM, respectively. Further study revealed that compounds 2, 3, 5, and 6 inhibited hepatic glucose production by suppression of glucagon-induced cAMP accumulation.
Collapse
Affiliation(s)
- Fu-Run Wang
- Haikou Key Laboratory for Research and Utilization of Tropical Natural Products, Institute of Tropical Bioscience and Biotechnology, CATAS, Haikou, China
- Key Laboratory for Quality Regulation of Tropical Horticultural Crops of Hainan Province, College of Horticulture, Hainan University, Haikou, China
| | - Li Yang
- Haikou Key Laboratory for Research and Utilization of Tropical Natural Products, Institute of Tropical Bioscience and Biotechnology, CATAS, Haikou, China
| | - Fan-Dong Kong
- Key Laboratory of Chemistry and Engineering of Forest Products, State Ethnic Affairs Commission, Guangxi Key Laboratory of Chemistry and Engineering of Forest Products, Guangxi Collaborative Innovation Center for Chemistry and Engineering of Forest Products, School of Chemistry and Chemical Engineering, Guangxi University for Nationalities, Nanning, China
| | - Qing-Yun Ma
- Haikou Key Laboratory for Research and Utilization of Tropical Natural Products, Institute of Tropical Bioscience and Biotechnology, CATAS, Haikou, China
| | - Qing-Yi Xie
- Haikou Key Laboratory for Research and Utilization of Tropical Natural Products, Institute of Tropical Bioscience and Biotechnology, CATAS, Haikou, China
| | - You-Gen Wu
- Key Laboratory for Quality Regulation of Tropical Horticultural Crops of Hainan Province, College of Horticulture, Hainan University, Haikou, China
| | - Hao-Fu Dai
- Hainan Institute for Tropical Agricultural Resources, CATAS, Haikou, China
| | - Ping Chen
- Key Laboratory for Quality Regulation of Tropical Horticultural Crops of Hainan Province, College of Horticulture, Hainan University, Haikou, China
- *Correspondence: Ping Chen, ; Na Xiao, ; You-Xing Zhao,
| | - Na Xiao
- State Key Laboratory of Crop Biology, College of Agronomy, Shandong Agriculture University, Tai’an, Shandong, China
- *Correspondence: Ping Chen, ; Na Xiao, ; You-Xing Zhao,
| | - You-Xing Zhao
- Haikou Key Laboratory for Research and Utilization of Tropical Natural Products, Institute of Tropical Bioscience and Biotechnology, CATAS, Haikou, China
- *Correspondence: Ping Chen, ; Na Xiao, ; You-Xing Zhao,
| |
Collapse
|