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Bao Y, Shan Q, Lu K, Yang Q, Liang Y, Kuang H, Wang L, Hao M, Peng M, Zhang S, Cao G. Renal tubular epithelial cell quality control mechanisms as therapeutic targets in renal fibrosis. J Pharm Anal 2024; 14:100933. [PMID: 39247486 PMCID: PMC11377145 DOI: 10.1016/j.jpha.2024.01.001] [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: 11/09/2023] [Revised: 12/20/2023] [Accepted: 01/02/2024] [Indexed: 09/10/2024] Open
Abstract
Renal fibrosis is a devastating consequence of progressive chronic kidney disease, representing a major public health challenge worldwide. The underlying mechanisms in the pathogenesis of renal fibrosis remain unclear, and effective treatments are still lacking. Renal tubular epithelial cells (RTECs) maintain kidney function, and their dysfunction has emerged as a critical contributor to renal fibrosis. Cellular quality control comprises several components, including telomere homeostasis, ubiquitin-proteasome system (UPS), autophagy, mitochondrial homeostasis (mitophagy and mitochondrial metabolism), endoplasmic reticulum (ER, unfolded protein response), and lysosomes. Failures in the cellular quality control of RTECs, including DNA, protein, and organelle damage, exert profibrotic functions by leading to senescence, defective autophagy, ER stress, mitochondrial and lysosomal dysfunction, apoptosis, fibroblast activation, and immune cell recruitment. In this review, we summarize recent advances in understanding the role of quality control components and intercellular crosstalk networks in RTECs, within the context of renal fibrosis.
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Affiliation(s)
- Yini Bao
- School of Pharmacy, Zhejiang Chinese Medical University, Hangzhou, 310053, China
| | - Qiyuan Shan
- School of Pharmacy, Zhejiang Chinese Medical University, Hangzhou, 310053, China
| | - Keda Lu
- The Third Affiliated Hospital of Zhejiang Chinese Medical University, Hangzhou, 310009, China
| | - Qiao Yang
- School of Pharmacy, Zhejiang Chinese Medical University, Hangzhou, 310053, China
| | - Ying Liang
- School of Pharmacy, Zhejiang Chinese Medical University, Hangzhou, 310053, China
| | - Haodan Kuang
- School of Pharmacy, Zhejiang Chinese Medical University, Hangzhou, 310053, China
| | - Lu Wang
- School of Pharmacy, Zhejiang Chinese Medical University, Hangzhou, 310053, China
| | - Min Hao
- School of Pharmacy, Zhejiang Chinese Medical University, Hangzhou, 310053, China
| | - Mengyun Peng
- School of Pharmacy, Zhejiang Chinese Medical University, Hangzhou, 310053, China
| | - Shuosheng Zhang
- College of Chinese Materia Medica and Food Engineering, Shanxi University of Chinese Medicine, Jinzhong, Shanxi, 030600, China
| | - Gang Cao
- School of Pharmacy, Zhejiang Chinese Medical University, Hangzhou, 310053, China
- The Third Affiliated Hospital of Zhejiang Chinese Medical University, Hangzhou, 310009, China
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Hua K, Li T, He Y, Guan A, Chen L, Gao Y, Xu Q, Wang H, Luo R, Zhao L, Jin H. Resistin secreted by porcine alveolar macrophages leads to endothelial cell dysfunction during Haemophilus parasuis infection. Virulence 2023; 14:2171636. [PMID: 36694280 PMCID: PMC9928480 DOI: 10.1080/21505594.2023.2171636] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023] Open
Abstract
Haemophilus parasuis (H. parasuis) causes exudative inflammation, implying endothelial dysfunction during pathogen infection. However, so far, the molecular mechanism of endothelial dysfunction caused by H. parasuis has not been clarified. By using the transwell-based cell co-culture system, we demonstrate that knocking out resistin in porcine alveolar macrophages (PAMs) dramatically attenuated endothelial monolayer damage caused by H. parasuis. The resistin secreted by PAMs inhibited the expression of the tight junction proteins claudin-5 and occludin rather than the adherens junction protein VE-cadherin in co-cultured porcine aortic endothelial cells (PAECs). Furthermore, we demonstrate that resistin regulated claudin-5 and occludin expression and monolayer PAEC permeability in an LKB1/AMPK/mTOR pathway-dependent manner. Additionally, we reveal that the outer membrane lipoprotein gene lppA in H. parasuis induced resistin expression in PAMs, as deleting lppA reduced resistin expression in H. parasuis-infected PAMs, causing a significant change in LKB1/AMPK/mTOR pathway activity in co-cultured PAECs, thereby restoring tight junction protein levels and endothelial monolayer permeability. Thus, we postulate that the H. parasuis lppA gene enhances resistin production in PAMs, disrupting tight junctions in PAECs and causing endothelial barrier dysfunction. These findings elucidate the pathogenic mechanism of exudative inflammation caused by H. parasuis for the first time and provide a more profound angle of acute exudative inflammation caused by bacteria.
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Affiliation(s)
- Kexin Hua
- State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan, China,College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, China,Hubei Provincial Key Laboratory of Preventive Veterinary Medicine, Huazhong Agricultural University, China
| | - Tingting Li
- Department of Animal Disease Diagnosis, Hubei Animal Disease Prevention and Control Centre, Wuhan, China
| | - Yanling He
- State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan, China,College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, China,Hubei Provincial Key Laboratory of Preventive Veterinary Medicine, Huazhong Agricultural University, China
| | - Aohan Guan
- State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan, China,College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, China,Hubei Provincial Key Laboratory of Preventive Veterinary Medicine, Huazhong Agricultural University, China
| | - Liying Chen
- State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan, China,College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, China,Hubei Provincial Key Laboratory of Preventive Veterinary Medicine, Huazhong Agricultural University, China
| | - Yuan Gao
- State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan, China,College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, China,Hubei Provincial Key Laboratory of Preventive Veterinary Medicine, Huazhong Agricultural University, China
| | - Qianshuan Xu
- State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan, China,College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, China,Hubei Provincial Key Laboratory of Preventive Veterinary Medicine, Huazhong Agricultural University, China
| | - Haoyu Wang
- State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan, China,College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, China,Hubei Provincial Key Laboratory of Preventive Veterinary Medicine, Huazhong Agricultural University, China
| | - Rui Luo
- State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan, China,College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, China,Hubei Provincial Key Laboratory of Preventive Veterinary Medicine, Huazhong Agricultural University, China
| | - Ling Zhao
- State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan, China,College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, China,Hubei Provincial Key Laboratory of Preventive Veterinary Medicine, Huazhong Agricultural University, China
| | - Hui Jin
- State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan, China,College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, China,Hubei Provincial Key Laboratory of Preventive Veterinary Medicine, Huazhong Agricultural University, China,CONTACT Hui Jin
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Qiu Z, Li Y, Fu Y, Yang Y. Research progress of AMP-activated protein kinase and cardiac aging. Open Life Sci 2023; 18:20220710. [PMID: 37671091 PMCID: PMC10476487 DOI: 10.1515/biol-2022-0710] [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: 02/27/2023] [Revised: 07/27/2023] [Accepted: 08/05/2023] [Indexed: 09/07/2023] Open
Abstract
The process of aging is marked by a gradual deterioration in the physiological functions and functional reserves of various tissues and organs, leading to an increased susceptibility to diseases and even death. Aging manifests in a tissue- and organ-specific manner, and is characterized by varying rates and direct and indirect interactions among different tissues and organs. Cardiovascular disease (CVD) is the leading cause of death globally, with older adults (aged >70 years) accounting for approximately two-thirds of CVD-related deaths. The prevalence of CVD increases exponentially with an individual's age. Aging is a critical independent risk factor for the development of CVD. AMP-activated protein kinase (AMPK) activation exerts cardioprotective effects in the heart and restores cellular metabolic functions by modulating gene expression and regulating protein levels through its interaction with multiple target proteins. Additionally, AMPK enhances mitochondrial function and cellular energy status by facilitating the utilization of energy substrates. This review focuses on the role of AMPK in the process of cardiac aging and maintaining normal metabolic levels and redox homeostasis in the heart, particularly in the presence of oxidative stress and the invasion of inflammatory factors.
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Affiliation(s)
- Zhengqi Qiu
- Faculty of Medicine, Macau University of Science and Technology, Taipa, Macao SAR 999078, China
| | - Yufei Li
- Faculty of Medicine, Macau University of Science and Technology, Taipa, Macao SAR 999078, China
| | - Yancheng Fu
- Guangdong Key Laboratory of Genome Stability and Human Disease Prevention, Carson International Cancer Center, Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Health Science Center, Shenzhen University, Shenzhen518060, China
| | - Yanru Yang
- Guangdong Key Laboratory of Genome Stability and Human Disease Prevention, Carson International Cancer Center, Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Health Science Center, Shenzhen University, Shenzhen518060, China
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Effect of Formaldehyde and Curcumin on Histomorphological Indices, Gene Expression Associated with Ovarian Follicular Development, and Total Antioxidant to Oxidant Levels in Wistar Rats. Int J Biomater 2023; 2023:4662440. [PMID: 36776151 PMCID: PMC9908331 DOI: 10.1155/2023/4662440] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2022] [Revised: 01/03/2023] [Accepted: 01/19/2023] [Indexed: 02/04/2023] Open
Abstract
The present experimental study was undertaken to investigate the effect of formaldehyde (FA) and curcumin (CUR) on histomorphological features, antioxidant potential, and messenger ribonucleic acid (mRNA) levels of genes related to follicular development in FA-exposed rats. 24 Wistar female rats were divided into four study groups and given intraperitoneal injections of FA (10 mg/kg) (N = 6), FA (10 mg/kg) + CUR (100 mg/kg) (N = 6), sham (N = 6), and control (N = 6) for 14 days. Ovarian follicular histology, the related gene expression, blood factors, and anti/oxidation potentials were assessed using ovarian tissue and serum, respectively. The klotho was significantly overexpressed in the FA group compared with controls and shams. Contradictory, the factor in germ line alpha was significantly down-regulated in FA and FA + CUR groups compared to shams and controls. A significant decline was seen in the number of ovarian follicles in the FA group, independent of the developmental stage. Regarding the comparison of the FA + CUR group to other groups, a significant change was seen in the number of secondary, graafian, and atretic follicles. The FA group demonstrated significantly lower hemoglobin, red blood cell count, hematocrit, and mean corpuscular hemoglobin concentration than controls. The activity of glutathione peroxidase increased significantly in the FA group than in the controls. Despite the deleterious effects of FA on histological and molecular aspects of rat ovarian follicles, CUR does not appear to have a protective effect against the hazardous effects of this chemical. However, CUR in some cases has positive effects such as reducing follicular destruction and interstitial edema.
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Hou L, Jiang F, Huang B, Zheng W, Jiang Y, Cai G, Liu D, Hu CY, Wang C. Dihydromyricetin resists inflammation-induced muscle atrophy via ryanodine receptor-CaMKK-AMPK signal pathway. J Cell Mol Med 2021; 25:9953-9971. [PMID: 34676967 PMCID: PMC8572760 DOI: 10.1111/jcmm.16810] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2021] [Revised: 07/03/2021] [Accepted: 07/08/2021] [Indexed: 12/14/2022] Open
Abstract
Skeletal muscle plays a pivotal role in the maintenance of physical and metabolic health. Skeletal muscle atrophy usually results in physical disability, inferior quality of life and higher health care costs. The higher incidence of muscle atrophy in obese and ageing groups is due to increased levels of inflammatory factors during obesity and ageing. Dihydromyricetin, as a bioactive polyphenol, has been used for anti‐inflammatory, anti‐tumour and improving insulin sensitivity. However, there are no published reports demonstrated the dihydromyricetin effect on inflammation‐induced skeletal muscle atrophy. In this study, we first confirmed the role of dihydromyricetin in inflammation‐induced skeletal muscle atrophy in vivo and in vitro. Then, we demonstrated that dihydromyricetin resisted inflammation‐induced skeletal muscle atrophy by activating Ca2+‐CaMKK‐AMPK through signal pathway blockers, Ca2+ probes and immunofluorescence. Finally, we clarified that dihydromyricetin activated Ca2+‐CaMKK‐AMPK signalling pathway through interaction with the ryanodine receptor, its target protein, by drug affinity responsive target stability (DARTS). Our results not only demonstrated that dihydromyricetin resisted inflammation‐induced muscle atrophy via the ryanodine receptor‐CaMKK‐AMPK signal pathway but also discovered that the target protein of dihydromyricetin is the ryanodine receptor. Our results provided experimental data for the development of dihydromyricetin as a functional food and new therapeutic strategies for treating or preventing skeletal muscle atrophy.
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Affiliation(s)
- Lianjie Hou
- Guangdong Provincial Key Lab of Agro-Animal Genomics and Molecular Breeding, National Engineering Research Center for Breeding Swine Industry, College of Animal Science, South China Agricultural University, Guangzhou, China.,The Sixth Affiliated Hospital of Guangzhou Medical University, Qingyuan City People's Hospital, Qingyuan, China
| | - Fangyi Jiang
- Guangdong Provincial Key Lab of Agro-Animal Genomics and Molecular Breeding, National Engineering Research Center for Breeding Swine Industry, College of Animal Science, South China Agricultural University, Guangzhou, China
| | - Bo Huang
- Guangdong Provincial Key Lab of Agro-Animal Genomics and Molecular Breeding, National Engineering Research Center for Breeding Swine Industry, College of Animal Science, South China Agricultural University, Guangzhou, China
| | - Weijie Zheng
- Guangdong Provincial Key Lab of Agro-Animal Genomics and Molecular Breeding, National Engineering Research Center for Breeding Swine Industry, College of Animal Science, South China Agricultural University, Guangzhou, China
| | - Yufei Jiang
- Guangdong Provincial Key Lab of Agro-Animal Genomics and Molecular Breeding, National Engineering Research Center for Breeding Swine Industry, College of Animal Science, South China Agricultural University, Guangzhou, China
| | - Gengyuan Cai
- Guangdong Provincial Key Lab of Agro-Animal Genomics and Molecular Breeding, National Engineering Research Center for Breeding Swine Industry, College of Animal Science, South China Agricultural University, Guangzhou, China
| | - Dewu Liu
- Guangdong Provincial Key Lab of Agro-Animal Genomics and Molecular Breeding, National Engineering Research Center for Breeding Swine Industry, College of Animal Science, South China Agricultural University, Guangzhou, China
| | - Ching Yuan Hu
- Department of Human Nutrition, Food and Animal Sciences, College of Tropical Agriculture and Human Resources, University of Hawaii at Manoa, Honolulu, Hawaii, USA
| | - Chong Wang
- Guangdong Provincial Key Lab of Agro-Animal Genomics and Molecular Breeding, National Engineering Research Center for Breeding Swine Industry, College of Animal Science, South China Agricultural University, Guangzhou, China
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Jiang WP, Deng JS, Huang SS, Wu SH, Chen CC, Liao JC, Chen HY, Lin HY, Huang GJ. Sanghuangporus sanghuang Mycelium Prevents Paracetamol-Induced Hepatotoxicity through Regulating the MAPK/NF-κB, Keap1/Nrf2/HO-1, TLR4/PI3K/Akt, and CaMKKβ/LKB1/AMPK Pathways and Suppressing Oxidative Stress and Inflammation. Antioxidants (Basel) 2021; 10:antiox10060897. [PMID: 34199606 PMCID: PMC8226512 DOI: 10.3390/antiox10060897] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2021] [Revised: 05/26/2021] [Accepted: 05/31/2021] [Indexed: 11/25/2022] Open
Abstract
Liver damage induced by paracetamol overdose is the main cause of acute liver failure worldwide. In order to study the hepatoprotective effect of Sanghuangporus sanghuang mycelium (SS) on paracetamol-induced liver injury, SS was administered orally every day for 6 days in mice before paracetamol treatment. SS decreased serum aminotransferase activities and the lipid profiles, protecting against paracetamol hepatotoxicity in mice. Furthermore, SS inhibited the lipid peroxidation marker malondialdehyde (MDA), hepatic cytochrome P450 2E1 (CYP2E1), and the histopathological changes in the liver and decreased inflammatory activity by inhibiting the production of proinflammatory cytokines in paracetamol-induced acute liver failure. Moreover, SS improved the levels of glutathione (GSH), superoxide dismutase (SOD), glutathione peroxidase (GPx), and catalase in the liver. Significantly, SS diminished mitogen-activated protein kinase (MAPK), Toll-like receptor 4 (TLR4), phosphatidylinositol 3-kinase (PI3K)/protein kinase B (Akt), and the nuclear factor-kappa B (NF-κB) axis, as well as upregulated the Kelch-like ECH-associated protein 1 (Keap1)/erythroid 2-related factor 2 (Nrf2)/heme oxygenase-1 (HO-1) pathway, in paracetamol-induced mice. SS mainly inhibited the phosphorylation of the liver kinase B1 (LKB1), Ca2+/calmodulin-dependent kinase kinase β (CaMKKβ), and AMP-activated protein kinase (AMPK) protein expression. Furthermore, the protective effects of SS on paracetamol-induced hepatotoxicity were abolished by compound C, an AMPK inhibitor. In summary, we provide novel molecular evidence that SS protects liver cells from paracetamol-induced hepatotoxicity by inhibiting oxidative stress and inflammation.
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Affiliation(s)
- Wen-Ping Jiang
- Department of Chinese Pharmaceutical Sciences and Chinese Medicine Resources, College of Chinese Medicine, China Medical University, Taichung 404, Taiwan;
- Department of Pharmacy, Chia Nan University of Pharmacy and Science, Tainan 717, Taiwan
- Department of Occupational Therapy, Asia University, Taichung 413, Taiwan
| | - Jeng-Shyan Deng
- Department of Health and Nutrition Biotechnology, Asia University, Taichung 413, Taiwan;
| | - Shyh-Shyun Huang
- School of Pharmacy, China Medical University, Taichung 404, Taiwan; (S.-S.H.); (J.-C.L.); (H.-Y.C.); (H.-Y.L.)
| | - Sheng-Hua Wu
- Department of Biology, National Museum of Natural Science, Taichung 404, Taiwan;
| | - Chin-Chu Chen
- Grape King Biotechnology Center, Chung-Li City 320, Taiwan;
| | - Jung-Chun Liao
- School of Pharmacy, China Medical University, Taichung 404, Taiwan; (S.-S.H.); (J.-C.L.); (H.-Y.C.); (H.-Y.L.)
| | - Hung-Yi Chen
- School of Pharmacy, China Medical University, Taichung 404, Taiwan; (S.-S.H.); (J.-C.L.); (H.-Y.C.); (H.-Y.L.)
| | - Hui-Yi Lin
- School of Pharmacy, China Medical University, Taichung 404, Taiwan; (S.-S.H.); (J.-C.L.); (H.-Y.C.); (H.-Y.L.)
| | - Guan-Jhong Huang
- Department of Chinese Pharmaceutical Sciences and Chinese Medicine Resources, College of Chinese Medicine, China Medical University, Taichung 404, Taiwan;
- Department of Health and Nutrition Biotechnology, Asia University, Taichung 413, Taiwan;
- Correspondence: ; Tel.: +886-4-2205-3366 (ext. 5508)
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Puckett D, Alquraishi M, Alani DS, Chahed S, Frankel VD, Donohoe D, Voy B, Whelan J, Bettaieb A. Zyflamend, a unique herbal blend, induces cell death and inhibits adipogenesis through the coordinated regulation of PKA and JNK. Adipocyte 2020; 9:454-471. [PMID: 32779962 PMCID: PMC7469463 DOI: 10.1080/21623945.2020.1803642] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
Abstract
The prevalence of obesity and its comorbidities has sparked a worldwide concern to address rates of adipose tissue accrual. Recent studies have demonstrated a novel role of Zyflamend, a blend of natural herbal extracts, in regulating lipid metabolism in several cancer cell lines through the activation of the AMPK signalling pathway. Yet, the role of Zyflamend in adipogenic differentiation and lipid metabolism remains largely unexplored. The objective of this study is to investigate the effects of Zyflamend on white 3T3-MBX pre-adipocyte differentiation and elucidate the molecular mechanisms. We demonstrate that Zyflamend treatment altered cell cycle progression, attenuated proliferation, and increased cell death of 3T3-MBX pre-adipocytes. In addition, treatment with Zyflamend inhibited lipid accumulation during the differentiation of 3T3-MBX cells, consistent with decreased expression of lipogenic genes and increased lipolysis. Mechanistically, Zyflamend-induced alterations in adipogenesis were mediated, at least in part, through the activation of AMPK, PKA, and JNK. Inhibition of AMPK partially reversed Zyflamend-induced inhibition of differentiation, whereas the inhibition of either JNK or PKA fully restored adipocyte differentiation and decreased lipolysis. Taken together, the present study demonstrates that Zyflamend, as a novel anti-adipogenic bioactive mix, inhibits adipocyte differentiation through the activation of the PKA and JNK pathways. Abbreviation: 7-AAD: 7-amino-actinomycin D; ACC: acetyl-CoA carboxylase; AKT: protein kinase B; AMPK: AMP-activated protein kinase; ATGL: adipose triglyceride lipase; C/EBPα: CCAAT-enhancer binding protein alpha; DMEM: Dulbecco’s Modified Eagle Medium; DMSO: dimethyl sulphoxide; DTT: dithiothreitol; EGTA: ethylene glycol-bis-(2-aminoethyl)-N,N,N’,N’-tetraacetic acid; ERK: extracellular signal–regulated kinases; FASN: fatty acid synthase; FBS: foetal bovine serum; GLUT: glucose transporter; HSL: hormone-sensitive lipase; IR: insulin receptor; IRS: insulin receptor substrate; JNK: c-JUN N-terminal kinase; MGL: monoacylglycerol lipase; NaF: sodium fluoride; NF-κB: nuclear factor kappa-light-chain-enhancer of activated B cells; PBS: phosphate buffered- saline; PCB: pyruvate carboxylase; PDE: phosphodiesterase; PKA: protein kinase cAMP-dependent; PMSF: phenylmethylsulfonyl fluoride; PPARγ: perilipin peroxisome proliferator-activated receptor gamma; PREF-1: pre-adipocyte factor 1; PVDF: polyvinylidene fluoride; RIPA: radio-immunoprecipitation assay; SDS-PAGE: sodium dodecyl sulphate polyacrylamide gel electrophoresis; SEM: standard error of the mean; SOX9: suppressor of cytokine signalling 9; TGs: triacylglycerols.
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Affiliation(s)
- Dexter Puckett
- Department of Nutrition, University of Tennessee Knoxville, Knoxville, TN, USA
| | - Mohammed Alquraishi
- Department of Nutrition, University of Tennessee Knoxville, Knoxville, TN, USA
| | - Dina S. Alani
- Department of Nutrition, University of Tennessee Knoxville, Knoxville, TN, USA
| | - Samah Chahed
- Department of Nutrition, University of Tennessee Knoxville, Knoxville, TN, USA
| | - Victoria D. Frankel
- Department of Nutrition, University of Tennessee Knoxville, Knoxville, TN, USA
| | - Dallas Donohoe
- Department of Nutrition, University of Tennessee Knoxville, Knoxville, TN, USA
| | - Brynn Voy
- Tennessee Agricultural Experiment Station, University of Tennessee Institute of Agriculture, Knoxville, TN, USA
- Graduate School of Genome Science and Technology, University of Tennessee, Knoxville, TN, USA
| | - Jay Whelan
- Department of Nutrition, University of Tennessee Knoxville, Knoxville, TN, USA
- Tennessee Agricultural Experiment Station, University of Tennessee Institute of Agriculture, Knoxville, TN, USA
| | - Ahmed Bettaieb
- Department of Nutrition, University of Tennessee Knoxville, Knoxville, TN, USA
- Graduate School of Genome Science and Technology, University of Tennessee, Knoxville, TN, USA
- Department of Biochemistry, Cellular and Molecular Biology, University of Tennessee, Knoxville, TN, USA
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A complete map of the Calcium/calmodulin-dependent protein kinase kinase 2 (CAMKK2) signaling pathway. J Cell Commun Signal 2020; 15:283-290. [PMID: 33136287 DOI: 10.1007/s12079-020-00592-1] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2020] [Accepted: 10/19/2020] [Indexed: 12/16/2022] Open
Abstract
Calcium/calmodulin-dependent protein kinase kinase 2 (CAMKK2) is a serine/threonine-protein kinase belonging to the Ca2+/calmodulin-dependent protein kinase subfamily. CAMKK2 has an autocatalytic site, which gets exposed when Ca2+/calmodulin (CAM) binds to it. This results in autophosphorylation and complete activation of CAMKK2. The three major known downstream targets of CAMKK2 are 5'-adenosine monophosphate (AMP)-activated protein kinase (AMPKα), calcium/calmodulin-dependent protein kinase 1 (CAMK1) and calcium/calmodulin-dependent protein kinase 4 (CAMK4). Activation of these targets by CAMKK2 is important for the maintenance of different cellular and physiological processes within the cell. CAMKK2 is found to be important in neuronal development, bone remodeling, adipogenesis, and systemic glucose homeostasis, osteoclastgensis and postnatal myogensis. CAMKK2 is reported to be involved in pathologies like Duchenne muscular dystrophy, inflammation, osteoporosis and bone remodeling and is also reported to be overexpressed in prostate cancer, hepatic cancer, ovarian and gastric cancer. CAMKK2 is involved in increased cell proliferation and migration through CAMKK2/AMPK pathway in prostate cancer and activation of AKT in ovarian cancer. Although CAMKK2 is a molecule of great importance, a public resource of the CAMKK2 signaling pathway is currently lacking. Therefore, we carried out detailed data mining and documentation of the signaling events associated with CAMKK2 from published literature and developed an integrated reaction map of CAMKK2 signaling. This resulted in the cataloging of 285 reactions belonging to the CAMKK2 signaling pathway, which includes 33 protein-protein interactions, 74 post-translational modifications, 7 protein translocation events, and 22 activation/inhibition events. Besides, 124 gene regulation events and 25 activator/inhibitors involved in CAMKK2 activation were also cataloged. The CAMKK2 signaling pathway map data is made freely accessible through WikiPathway database ( https://www.wikipathways.org/index.php/Pathway:WP4874 ). We expect that data on a signaling map of CAMKK2 will provide the scientific community with an improved platform to facilitate further molecular as well as biomedical investigations on CAMKK2 and its utility in the development of biomarkers and therapeutic targets.
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Puckett DL, Alquraishi M, Alani D, Chahed S, Donohoe D, Voy B, Whelan J, Bettaieb A. Zyflamend induces apoptosis in pancreatic cancer cells via modulation of the JNK pathway. Cell Commun Signal 2020; 18:126. [PMID: 32795297 PMCID: PMC7427957 DOI: 10.1186/s12964-020-00609-7] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2019] [Accepted: 06/08/2020] [Indexed: 12/16/2022] Open
Abstract
Background Current pharmacological therapies and treatments targeting pancreatic neuroendocrine tumors (PNETs) have proven ineffective, far too often. Therefore, there is an urgent need for alternative therapeutic approaches. Zyflamend, a combination of anti-inflammatory herbal extracts, that has proven to be effective in various in vitro and in vivo cancer platforms, shows promise. However, its effects on pancreatic cancer, in particular, remain largely unexplored. Methods In the current study, we investigated the effects of Zyflamend on the survival of beta-TC-6 pancreatic insulinoma cells (β-TC6) and conducted a detailed analysis of the underlying molecular mechanisms. Results Herein, we demonstrate that Zyflamend treatment decreased cell proliferation in a dose-dependent manner, concomitant with increased apoptotic cell death and cell cycle arrest at the G2/M phase. At the molecular level, treatment with Zyflamend led to the induction of ER stress, autophagy, and the activation of c-Jun N-terminal kinase (JNK) pathway. Notably, pharmacological inhibition of JNK abrogated the pro-apoptotic effects of Zyflamend. Furthermore, Zyflamend exacerbated the effects of streptozotocin and adriamycin-induced ER stress, autophagy, and apoptosis. Conclusion The current study identifies Zyflamend as a potential novel adjuvant in the treatment of pancreatic cancer via modulation of the JNK pathway. Video abstract
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Affiliation(s)
- Dexter L Puckett
- Department of Nutrition, University of Tennessee Knoxville, 1215 Cumberland Avenue, 229 Jessie Harris Building, Knoxville, TN, 37996-0840, USA
| | - Mohammed Alquraishi
- Department of Nutrition, University of Tennessee Knoxville, 1215 Cumberland Avenue, 229 Jessie Harris Building, Knoxville, TN, 37996-0840, USA
| | - Dina Alani
- Department of Nutrition, University of Tennessee Knoxville, 1215 Cumberland Avenue, 229 Jessie Harris Building, Knoxville, TN, 37996-0840, USA
| | - Samah Chahed
- Department of Nutrition, University of Tennessee Knoxville, 1215 Cumberland Avenue, 229 Jessie Harris Building, Knoxville, TN, 37996-0840, USA
| | - Dallas Donohoe
- Department of Nutrition, University of Tennessee Knoxville, 1215 Cumberland Avenue, 229 Jessie Harris Building, Knoxville, TN, 37996-0840, USA
| | - Brynn Voy
- Tennessee Agricultural Experiment Station, University of Tennessee Institute of Agriculture, Knoxville, TN, 37996-0840, USA.,Graduate School of Genome Science and Technology, University of Tennessee, Knoxville, TN, 37996-0840, USA
| | - Jay Whelan
- Department of Nutrition, University of Tennessee Knoxville, 1215 Cumberland Avenue, 229 Jessie Harris Building, Knoxville, TN, 37996-0840, USA.,Tennessee Agricultural Experiment Station, University of Tennessee Institute of Agriculture, Knoxville, TN, 37996-0840, USA
| | - Ahmed Bettaieb
- Department of Nutrition, University of Tennessee Knoxville, 1215 Cumberland Avenue, 229 Jessie Harris Building, Knoxville, TN, 37996-0840, USA. .,Graduate School of Genome Science and Technology, University of Tennessee, Knoxville, TN, 37996-0840, USA. .,Department of Biochemistry, Cellular and Molecular Biology, University of Tennessee, Knoxville, TN, 37996-0840, USA.
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