1
|
Alshammari GM, Yagoub AEA, Subash-Babu P, Hassan AB, Al-Nouri DM, Mohammed MA, Yahya MA, Elsayim R. Inhibition of Lipid Accumulation and Adipokine Levels in Maturing Adipocytes by Bauhinia rufescens (Lam.) Stem Bark Extract Loaded Titanium Oxide Nanoparticles. Molecules 2021; 26:molecules26237238. [PMID: 34885819 PMCID: PMC8659042 DOI: 10.3390/molecules26237238] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2021] [Revised: 11/25/2021] [Accepted: 11/26/2021] [Indexed: 11/16/2022] Open
Abstract
The present study reports a cost-effective, environmentally friendly method to increase the bioavailability and bio-efficacy of B. rufescens stem bark extract in the biological system via functional modification as B. rufescens stem bark nanoparticles (BR-TO2-NPs). The biosynthesis of BR- -NPs was confirmed by UV-visible (UV-vis) and Fourier-transform infrared (FT-IR) spectroscopy, transmission electron microscopy (TEM), and X-ray diffraction analyses. The shifts in FT-IR stretching vibrations of carboxylic and nitro groups (1615 cm-1), the O-H of phenolics or carboxylic acids (3405 cm-1), alkanes, and alkyne groups (2925 and 2224 cm-1) of the plant extract and lattice (455) indicated successful biosynthesis of BR- -NPs. Compared with the stem bark extract, 40 ng/dL dose of BR- -NPs led to a reduction in adipogenesis and an increase in mitochondrial biogenesis-related gene expressions, adiponectin-R1, PPARγC1α, UCP-1, and PRDM16, in maturing-adipocytes. This confirmed the intracellular uptake, bioavailability, and bio-efficiency of BR-TiO2-NPs. The lipid-lowering capacity of BR-TiO2-NPs effectively inhibited the metabolic inflammation-related gene markers, IL-6, TNF-α, LTB4-R, and Nf-κb. Further, BR-TiO2-NPs stimulating mitochondrial thermogenesis capacity was proven by the significantly enhanced CREB-1 and AMPK protein levels in adipocytes. In conclusion, BR-TiO2-NPs effectively inhibited lipid accumulation and proinflammatory adipokine levels in maturing adipocytes; it may help to overcome obesity-associated comorbidities.
Collapse
Affiliation(s)
- Ghedeir M. Alshammari
- Department of Food Science and Nutrition, College of Food and Agricultural Sciences, King Saud University, P.O. Box 2460, Riyadh 11451, Saudi Arabia; (G.M.A.); (P.S.-B.); (A.B.H.); (D.M.A.-N.); (M.A.M.); (M.A.Y.)
| | - Abu ElGasim A. Yagoub
- Department of Food Science and Nutrition, College of Food and Agricultural Sciences, King Saud University, P.O. Box 2460, Riyadh 11451, Saudi Arabia; (G.M.A.); (P.S.-B.); (A.B.H.); (D.M.A.-N.); (M.A.M.); (M.A.Y.)
- Correspondence:
| | - Pandurangan Subash-Babu
- Department of Food Science and Nutrition, College of Food and Agricultural Sciences, King Saud University, P.O. Box 2460, Riyadh 11451, Saudi Arabia; (G.M.A.); (P.S.-B.); (A.B.H.); (D.M.A.-N.); (M.A.M.); (M.A.Y.)
| | - Amro B. Hassan
- Department of Food Science and Nutrition, College of Food and Agricultural Sciences, King Saud University, P.O. Box 2460, Riyadh 11451, Saudi Arabia; (G.M.A.); (P.S.-B.); (A.B.H.); (D.M.A.-N.); (M.A.M.); (M.A.Y.)
| | - Doha M. Al-Nouri
- Department of Food Science and Nutrition, College of Food and Agricultural Sciences, King Saud University, P.O. Box 2460, Riyadh 11451, Saudi Arabia; (G.M.A.); (P.S.-B.); (A.B.H.); (D.M.A.-N.); (M.A.M.); (M.A.Y.)
| | - Mohammed A. Mohammed
- Department of Food Science and Nutrition, College of Food and Agricultural Sciences, King Saud University, P.O. Box 2460, Riyadh 11451, Saudi Arabia; (G.M.A.); (P.S.-B.); (A.B.H.); (D.M.A.-N.); (M.A.M.); (M.A.Y.)
| | - Mohammed A. Yahya
- Department of Food Science and Nutrition, College of Food and Agricultural Sciences, King Saud University, P.O. Box 2460, Riyadh 11451, Saudi Arabia; (G.M.A.); (P.S.-B.); (A.B.H.); (D.M.A.-N.); (M.A.M.); (M.A.Y.)
| | - Rasha Elsayim
- Department of Microbiology, College of Sciences, King Saud University, P.O. Box 2460, Riyadh 11451, Saudi Arabia;
| |
Collapse
|
2
|
Puertas-Bartolomé M, Benito-Garzón L, Fung S, Kohn J, Vázquez-Lasa B, San Román J. Bioadhesive functional hydrogels: Controlled release of catechol species with antioxidant and antiinflammatory behavior. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2019; 105:110040. [PMID: 31546368 DOI: 10.1016/j.msec.2019.110040] [Citation(s) in RCA: 49] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/07/2019] [Revised: 07/22/2019] [Accepted: 07/30/2019] [Indexed: 12/13/2022]
Abstract
Chronic wounds are particularly difficult to heal and constitute an important global health care problem. Some key factors that make chronic wounds challenging to heal are attributed to the incessant release of free radicals, which activate the inflammatory system and impair the repair of the wound. Intrinsic characteristics of hydrogels are beneficial for wound healing, but the effective control of free radical levels in the wound and subsequent inflammation is still a challenge. Catechol, the key molecule responsible for the mechanism of adhesion of mussels, has been proven to be an excellent radical scavenger and anti-inflammatory agent. Our approach in this work lies in the preparation of a hybrid system combining the beneficial properties of hydrogels and catechol for its application as a bioactive wound dressing to assist in the treatment of chronic wounds. The hydrogel backbone is obtained through a self-covalent crosslinking between chitosan (Ch) and oxidized hyaluronic acid (HAox) in the presence of a synthetic catechol terpolymer, which is subsequently coordinated to Fe to obtain an interpenetrated polymer network (IPN). The structural analysis, catechol release profiles, in vitro biological behavior and in vivo performance of the IPN are analyzed and compared with the semi-IPN (without Fe) and the Ch/HAox crosslinked hydrogels as controls. Catechol-containing hydrogels present high tissue adhesion strength under wet conditions, support growth, migration and proliferation of hBMSCs, protect cells against oxidative stress damage induce by ROS, and promote down-regulation of the pro-inflammatory cytokine IL-1β. Furthermore, in vivo experiments reveal their biocompatibility and stability, and histological studies indicate normal inflammatory responses and faster vascularization, highlighting the performance of the IPN system. The novel IPN design also allows for the in situ controlled and sustained delivery of catechol. Therefore, the developed IPN is a suitable ECM-mimic platform with high cell affinity and bioactive functionalities that, together with the controlled catechol release, will enhance the tissue regeneration process and has a great potential for its application as wound dressing.
Collapse
Affiliation(s)
- María Puertas-Bartolomé
- Institute of Polymer Science and Technology, ICTP-CSIC, Juan de la Cierva 3, 28006 Madrid, Spain; CIBER-BBN, Institute of Health Carlos III, Monforte de Lemos 3-5 (11), 28029 Madrid, Spain
| | | | - Stephanie Fung
- Rutgers University, New Jersey Center for Biomaterials, 08854 Piscataway, NJ, USA
| | - Joachim Kohn
- Rutgers University, New Jersey Center for Biomaterials, 08854 Piscataway, NJ, USA
| | - Blanca Vázquez-Lasa
- Institute of Polymer Science and Technology, ICTP-CSIC, Juan de la Cierva 3, 28006 Madrid, Spain; CIBER-BBN, Institute of Health Carlos III, Monforte de Lemos 3-5 (11), 28029 Madrid, Spain.
| | - Julio San Román
- Institute of Polymer Science and Technology, ICTP-CSIC, Juan de la Cierva 3, 28006 Madrid, Spain; CIBER-BBN, Institute of Health Carlos III, Monforte de Lemos 3-5 (11), 28029 Madrid, Spain
| |
Collapse
|
3
|
Jeon S, Kim SH, Shin SY, Lee YH. Clozapine reduces Toll-like receptor 4/NF-κB-mediated inflammatory responses through inhibition of calcium/calmodulin-dependent Akt activation in microglia. Prog Neuropsychopharmacol Biol Psychiatry 2018; 81:477-487. [PMID: 28431901 DOI: 10.1016/j.pnpbp.2017.04.012] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/09/2017] [Revised: 04/12/2017] [Accepted: 04/12/2017] [Indexed: 12/25/2022]
Abstract
Clozapine is an atypical antipsychotic agent used in the treatment of schizophrenia and severe mood disorders. Accumulating evidence suggests that neuroinflammation is closely associated with the pathogenesis of various neurodegenerative diseases and psychiatric disorders. Clozapine exerts anti-inflammatory activity. However, the molecular mechanism underlying the anti-inflammatory activity of clozapine is poorly understood. In this study, we found that clozapine suppressed lipopolysaccharide (LPS)-induced phosphorylation of IκBα at Ser-32 and of p65/RelA at Ser-468, as well as nuclear factor kappa-light-chain-enhancer of activated B cells (NF-κB)-dependent transcriptional activity in microglial cells. Clozapine downregulated LPS-induced Akt phosphorylation at Ser-473. Pharmacological Akt inhibitors ameliorated LPS-induced NF-κB activation. Removal of extracellular Ca2+ by EGTA or sequestration of intracellular Ca2+ by BAPTA-AM attenuated LPS-induced Akt phosphorylation. Treatment with calmodulin (CaM) antagonists and the CaM kinase inhibitor, KN-93, also prevented LPS-induced Akt and NF-κB activation, suggesting that Ca2+/CaM-dependent Akt activation is critical in LPS-induced NF-κB activation in microglia. These results suggest that clozapine exhibits anti-inflammatory activity through the inhibition of Ca2+/CaM/Akt-mediated NF-κB activation.
Collapse
Affiliation(s)
- Seunghyun Jeon
- Department of Biomedical Science and Technology, Graduate School of Konkuk University, Seoul 05029, Republic of Korea
| | - Se Hyun Kim
- Department of Neuropsychiatry, Dongguk University International Hospital, Dongguk University Medical School, Goyang-si, Gyeonggi-do 10326, Republic of Korea
| | - Soon Young Shin
- Department of Biological Sciences, Sanghuh College of Life Sciences, Konkuk University, Seoul 05029, Republic of Korea; Cancer and Metabolism Institute, Konkuk University, Seoul 05029, Republic of Korea
| | - Young Han Lee
- Department of Biological Sciences, Sanghuh College of Life Sciences, Konkuk University, Seoul 05029, Republic of Korea; Cancer and Metabolism Institute, Konkuk University, Seoul 05029, Republic of Korea.
| |
Collapse
|
4
|
Modulation by Central MAPKs/PI3K/sGc of the TNF-α/iNOS-dependent Hypotension and Compromised Cardiac Autonomic Control in Endotoxic Rats. J Cardiovasc Pharmacol 2016; 68:171-81. [DOI: 10.1097/fjc.0000000000000400] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
|
5
|
Wang C, Nie X, Zhang Y, Li T, Mao J, Liu X, Gu Y, Shi J, Xiao J, Wan C, Wu Q. Reactive oxygen species mediate nitric oxide production through ERK/JNK MAPK signaling in HAPI microglia after PFOS exposure. Toxicol Appl Pharmacol 2015; 288:143-51. [PMID: 26086160 DOI: 10.1016/j.taap.2015.06.012] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2015] [Revised: 06/06/2015] [Accepted: 06/12/2015] [Indexed: 12/15/2022]
Abstract
Perfluorooctane sulfonate (PFOS), an emerging persistent contaminant that is commonly encountered during daily life, has been shown to exert toxic effects on the central nervous system (CNS). However, the molecular mechanisms underlying the neurotoxicity of PFOS remain largely unknown. It has been widely acknowledged that the inflammatory mediators released by hyper-activated microglia play vital roles in the pathogenesis of various neurological diseases. In the present study, we examined the impact of PFOS exposure on microglial activation and the release of proinflammatory mediators, including nitric oxide (NO) and reactive oxidative species (ROS). We found that PFOS exposure led to concentration-dependent NO and ROS production by rat HAPI microglia. We also discovered that there was rapid activation of the ERK/JNK MAPK signaling pathway in the HAPI microglia following PFOS treatment. Moreover, the PFOS-induced iNOS expression and NO production were attenuated after the inhibition of ERK or JNK MAPK by their corresponding inhibitors, PD98059 and SP600125. Interestingly, NAC, a ROS inhibitor, blocked iNOS expression, NO production, and activation of ERK and JNK MAPKs, which suggested that PFOS-mediated microglial NO production occurs via a ROS/ERK/JNK MAPK signaling pathway. Finally, by exposing SH-SY5Y cells to PFOS-treated microglia-conditioned medium, we demonstrated that NO was responsible for PFOS-mediated neuronal apoptosis.
Collapse
Affiliation(s)
- Cheng Wang
- Department of Nutrition and Food Hygiene, School of Public Health, Nantong University, Nantong, Jiangsu 226001, People's Republic of China
| | - Xiaoke Nie
- Department of Nutrition and Food Hygiene, School of Public Health, Nantong University, Nantong, Jiangsu 226001, People's Republic of China
| | - Yan Zhang
- Department of Nutrition and Food Hygiene, School of Public Health, Nantong University, Nantong, Jiangsu 226001, People's Republic of China
| | - Ting Li
- Department of Labor and Environmental Hygiene, School of Public Health, Nantong University, Nantong, Jiangsu 226001, People's Republic of China
| | - Jiamin Mao
- Department of Labor and Environmental Hygiene, School of Public Health, Nantong University, Nantong, Jiangsu 226001, People's Republic of China
| | - Xinhang Liu
- Department of Occupational Medicine and Environmental Toxicology, School of Public Health, Nantong University, Nantong, Jiangsu 226001, People's Republic of China
| | - Yiyang Gu
- Department of Labor and Environmental Hygiene, School of Public Health, Nantong University, Nantong, Jiangsu 226001, People's Republic of China
| | - Jiyun Shi
- Department of Labor and Environmental Hygiene, School of Public Health, Nantong University, Nantong, Jiangsu 226001, People's Republic of China
| | - Jing Xiao
- Department of Occupational Medicine and Environmental Toxicology, School of Public Health, Nantong University, Nantong, Jiangsu 226001, People's Republic of China
| | - Chunhua Wan
- Department of Nutrition and Food Hygiene, School of Public Health, Nantong University, Nantong, Jiangsu 226001, People's Republic of China
| | - Qiyun Wu
- Department of Nutrition and Food Hygiene, School of Public Health, Nantong University, Nantong, Jiangsu 226001, People's Republic of China.
| |
Collapse
|