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Peng F, Ai X, Bu X, Zhao Z, Gao B. Visualizing Mitochondrial Membrane Potential with FRET Probes: Integrating Fluorescence Intensity Ratio and Lifetime Imaging. J Fluoresc 2024:10.1007/s10895-024-03929-w. [PMID: 39320633 DOI: 10.1007/s10895-024-03929-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2024] [Accepted: 09/04/2024] [Indexed: 09/26/2024]
Abstract
Mitochondrial membrane potential (MMP) is crucial for mitochondrial function and serves as a key indicator of cellular health and metabolic activity. Traditional lipophilic cationic fluorescence intensity probes are unavoidably influenced by probe concentration, laser intensity, and photobleaching, limiting their accuracy. To address these issues, we designed and synthesized a pair of fluorescence molecules, OR-C8 and SiR-BA, based on the Förster Resonance Energy Transfer (FRET) mechanism, for dual-modality visualization of MMP. OR-C8 anchors to the inner mitochondrial membrane through strong hydrophobic interactions, while SiR-BA is expelled from mitochondria when MMP decreases, thereby regulating the FRET process. During MMP reduction, the fluorescence intensity and lifetime of OR-C8 increase, while the fluorescence intensity of SiR-BA decreases. By combining changes in fluorescence intensity ratio and fluorescence lifetime, dual-modality visualization of MMP was achieved. This method not only accurately reflects MMP changes but also provides a novel tool for in-depth studies of mitochondrial function and related disease mechanisms, offering significant potential for advancing mitochondrial research and therapeutic development.
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Affiliation(s)
- Fei Peng
- College of Chemistry and Materials Science, Hebei University, Baoding, 071002, China.
- Key Laboratory of Analytical Science and Technology of Hebei Province, Hebei University, Baoding, Hebei, 071002, China.
| | - Xiangnan Ai
- College of Chemistry and Materials Science, Hebei University, Baoding, 071002, China
| | - Xiaoyu Bu
- College of Chemistry and Materials Science, Hebei University, Baoding, 071002, China
| | - Zixuan Zhao
- College of Chemistry and Materials Science, Hebei University, Baoding, 071002, China
| | - Baoxiang Gao
- College of Chemistry and Materials Science, Hebei University, Baoding, 071002, China.
- Key Laboratory of Analytical Science and Technology of Hebei Province, Hebei University, Baoding, Hebei, 071002, China.
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O'Connor C, Schneider M, Katinas JM, Nayeen MJ, Shah K, Magdum T, Sharma A, Kim S, Bao X, Li J, Dann CE, Gangjee A, Matherly LH, Hou Z. Role of Mitochondrial and Cytosolic Folylpolyglutamate Synthetase in One-Carbon Metabolism and Antitumor Efficacy of Mitochondrial-Targeted Antifolates. Mol Pharmacol 2024; 106:173-187. [PMID: 39048308 PMCID: PMC11413923 DOI: 10.1124/molpharm.124.000912] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2024] [Revised: 07/02/2024] [Accepted: 07/11/2024] [Indexed: 07/27/2024] Open
Abstract
Folate-dependent one-carbon (C1) metabolism encompasses distinct cytosolic and mitochondrial pathways connected by an interchange among serine, glycine, and formate. In both the cytosol and mitochondria, folates exist as polyglutamates, with polyglutamylation catalyzed by folylpolyglutamate synthetase (FPGS), including cytosolic and mitochondrial isoforms. Serine is metabolized by serine hydroxymethyltransferase (SHMT)2 in the mitochondria and generates glycine and C1 units for cellular biosynthesis in the cytosol. AGF347 is a novel pyrrolo[3,2-day]pyrimidine antifolate that targets SHMT2 in the mitochondria and SHMT1 and de novo purine biosynthesis in the cytosol. FPGS is expressed in primary pancreatic cancer specimens, and FPGS levels correlate with in vitro efficacies of AGF347 toward human pancreatic cancer cells. MIA PaCa-2 pancreatic cancer cells with CRISPR knockout of FPGS were engineered to express doxycycline-inducible FPGS exclusively in the cytosol (cFPGS) or in both the cytosol and mitochondria (mFPGS). Folate and AGF347 accumulations increased in both the cytosol and mitochondria with increased mFPGS but were restricted to the cytosol with cFPGS. AGF347-Glu5 inhibited SHMT2 ∼19-fold greater than AGF347 By metabolomics analysis, mFPGS stimulated the C1 flux from serine in the mitochondria and de novo purine and dTTP synthesis far greater than cFPGS. mFPGS enhanced in vitro inhibition of MIA PaCa-2 cell proliferation by AGF347 (∼30-fold) more than cFPGS (∼4.9-fold). Similar results were seen with other pyrrolo[3,2-d]pyrimidine antifolates (AGF291, AGF320); however, elevated mFPGS adversely impacted inhibition by the nonclassical SHMT2/SHMT1 inhibitor SHIN1. These results suggest a critical role of mFPGS levels in determining antitumor efficacies of mitochondrial-targeted pyrrolo[3,2-d]pyrimidine antifolates for pancreatic cancer. SIGNIFICANCE STATEMENT: AGF347 is a novel pyrrolo[3,2-d]pyrimidine antifolate that targets serine hydroxymethyltransferase (SHMT)2 in the mitochondria and SHMT1 and de novo purine biosynthesis in the cytosol. AGF347 accumulation increases with folylpolyglutamate synthetase (FPGS) levels in both the cytosol and mitochondria. Increased mitochondrial FPGS stimulated one-carbon metabolic fluxes in the cytosol and mitochondria and substantially enhanced in vitro inhibition of pancreatic cancer cells by AGF347. Mitochondrial FPGS levels play important roles in determining the antitumor efficacies of pyrrolo[3,2-d]pyrimidine antifolates for pancreatic cancer.
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Affiliation(s)
- Carrie O'Connor
- Department of Oncology (C.O., M.S., S.K., X.B., J.L., L.H.M., Z.H.) and Department of Pharmacology (L.H.M.), Wayne State University School of Medicine, Detroit, Michigan; Division of Medicinal Chemistry, Graduate School of Pharmaceutical Sciences, Duquesne University, Pittsburgh, Pennsylvania (M.J.N., K.S., T.M., A.S., A.G.); Department of Chemistry, Indiana University, Bloomington, Indiana (J.M.K., C.E.D.); and Molecular Therapeutics Program, Barbara Ann Karmanos Cancer Institute, Detroit, Michigan (S.K., X.B., J.L., L.H.M., Z.H.)
| | - Mathew Schneider
- Department of Oncology (C.O., M.S., S.K., X.B., J.L., L.H.M., Z.H.) and Department of Pharmacology (L.H.M.), Wayne State University School of Medicine, Detroit, Michigan; Division of Medicinal Chemistry, Graduate School of Pharmaceutical Sciences, Duquesne University, Pittsburgh, Pennsylvania (M.J.N., K.S., T.M., A.S., A.G.); Department of Chemistry, Indiana University, Bloomington, Indiana (J.M.K., C.E.D.); and Molecular Therapeutics Program, Barbara Ann Karmanos Cancer Institute, Detroit, Michigan (S.K., X.B., J.L., L.H.M., Z.H.)
| | - Jade M Katinas
- Department of Oncology (C.O., M.S., S.K., X.B., J.L., L.H.M., Z.H.) and Department of Pharmacology (L.H.M.), Wayne State University School of Medicine, Detroit, Michigan; Division of Medicinal Chemistry, Graduate School of Pharmaceutical Sciences, Duquesne University, Pittsburgh, Pennsylvania (M.J.N., K.S., T.M., A.S., A.G.); Department of Chemistry, Indiana University, Bloomington, Indiana (J.M.K., C.E.D.); and Molecular Therapeutics Program, Barbara Ann Karmanos Cancer Institute, Detroit, Michigan (S.K., X.B., J.L., L.H.M., Z.H.)
| | - Md Junayed Nayeen
- Department of Oncology (C.O., M.S., S.K., X.B., J.L., L.H.M., Z.H.) and Department of Pharmacology (L.H.M.), Wayne State University School of Medicine, Detroit, Michigan; Division of Medicinal Chemistry, Graduate School of Pharmaceutical Sciences, Duquesne University, Pittsburgh, Pennsylvania (M.J.N., K.S., T.M., A.S., A.G.); Department of Chemistry, Indiana University, Bloomington, Indiana (J.M.K., C.E.D.); and Molecular Therapeutics Program, Barbara Ann Karmanos Cancer Institute, Detroit, Michigan (S.K., X.B., J.L., L.H.M., Z.H.)
| | - Khushbu Shah
- Department of Oncology (C.O., M.S., S.K., X.B., J.L., L.H.M., Z.H.) and Department of Pharmacology (L.H.M.), Wayne State University School of Medicine, Detroit, Michigan; Division of Medicinal Chemistry, Graduate School of Pharmaceutical Sciences, Duquesne University, Pittsburgh, Pennsylvania (M.J.N., K.S., T.M., A.S., A.G.); Department of Chemistry, Indiana University, Bloomington, Indiana (J.M.K., C.E.D.); and Molecular Therapeutics Program, Barbara Ann Karmanos Cancer Institute, Detroit, Michigan (S.K., X.B., J.L., L.H.M., Z.H.)
| | - Tejashree Magdum
- Department of Oncology (C.O., M.S., S.K., X.B., J.L., L.H.M., Z.H.) and Department of Pharmacology (L.H.M.), Wayne State University School of Medicine, Detroit, Michigan; Division of Medicinal Chemistry, Graduate School of Pharmaceutical Sciences, Duquesne University, Pittsburgh, Pennsylvania (M.J.N., K.S., T.M., A.S., A.G.); Department of Chemistry, Indiana University, Bloomington, Indiana (J.M.K., C.E.D.); and Molecular Therapeutics Program, Barbara Ann Karmanos Cancer Institute, Detroit, Michigan (S.K., X.B., J.L., L.H.M., Z.H.)
| | - Abhishekh Sharma
- Department of Oncology (C.O., M.S., S.K., X.B., J.L., L.H.M., Z.H.) and Department of Pharmacology (L.H.M.), Wayne State University School of Medicine, Detroit, Michigan; Division of Medicinal Chemistry, Graduate School of Pharmaceutical Sciences, Duquesne University, Pittsburgh, Pennsylvania (M.J.N., K.S., T.M., A.S., A.G.); Department of Chemistry, Indiana University, Bloomington, Indiana (J.M.K., C.E.D.); and Molecular Therapeutics Program, Barbara Ann Karmanos Cancer Institute, Detroit, Michigan (S.K., X.B., J.L., L.H.M., Z.H.)
| | - Seongho Kim
- Department of Oncology (C.O., M.S., S.K., X.B., J.L., L.H.M., Z.H.) and Department of Pharmacology (L.H.M.), Wayne State University School of Medicine, Detroit, Michigan; Division of Medicinal Chemistry, Graduate School of Pharmaceutical Sciences, Duquesne University, Pittsburgh, Pennsylvania (M.J.N., K.S., T.M., A.S., A.G.); Department of Chemistry, Indiana University, Bloomington, Indiana (J.M.K., C.E.D.); and Molecular Therapeutics Program, Barbara Ann Karmanos Cancer Institute, Detroit, Michigan (S.K., X.B., J.L., L.H.M., Z.H.)
| | - Xun Bao
- Department of Oncology (C.O., M.S., S.K., X.B., J.L., L.H.M., Z.H.) and Department of Pharmacology (L.H.M.), Wayne State University School of Medicine, Detroit, Michigan; Division of Medicinal Chemistry, Graduate School of Pharmaceutical Sciences, Duquesne University, Pittsburgh, Pennsylvania (M.J.N., K.S., T.M., A.S., A.G.); Department of Chemistry, Indiana University, Bloomington, Indiana (J.M.K., C.E.D.); and Molecular Therapeutics Program, Barbara Ann Karmanos Cancer Institute, Detroit, Michigan (S.K., X.B., J.L., L.H.M., Z.H.)
| | - Jing Li
- Department of Oncology (C.O., M.S., S.K., X.B., J.L., L.H.M., Z.H.) and Department of Pharmacology (L.H.M.), Wayne State University School of Medicine, Detroit, Michigan; Division of Medicinal Chemistry, Graduate School of Pharmaceutical Sciences, Duquesne University, Pittsburgh, Pennsylvania (M.J.N., K.S., T.M., A.S., A.G.); Department of Chemistry, Indiana University, Bloomington, Indiana (J.M.K., C.E.D.); and Molecular Therapeutics Program, Barbara Ann Karmanos Cancer Institute, Detroit, Michigan (S.K., X.B., J.L., L.H.M., Z.H.)
| | - Charles E Dann
- Department of Oncology (C.O., M.S., S.K., X.B., J.L., L.H.M., Z.H.) and Department of Pharmacology (L.H.M.), Wayne State University School of Medicine, Detroit, Michigan; Division of Medicinal Chemistry, Graduate School of Pharmaceutical Sciences, Duquesne University, Pittsburgh, Pennsylvania (M.J.N., K.S., T.M., A.S., A.G.); Department of Chemistry, Indiana University, Bloomington, Indiana (J.M.K., C.E.D.); and Molecular Therapeutics Program, Barbara Ann Karmanos Cancer Institute, Detroit, Michigan (S.K., X.B., J.L., L.H.M., Z.H.)
| | - Aleem Gangjee
- Department of Oncology (C.O., M.S., S.K., X.B., J.L., L.H.M., Z.H.) and Department of Pharmacology (L.H.M.), Wayne State University School of Medicine, Detroit, Michigan; Division of Medicinal Chemistry, Graduate School of Pharmaceutical Sciences, Duquesne University, Pittsburgh, Pennsylvania (M.J.N., K.S., T.M., A.S., A.G.); Department of Chemistry, Indiana University, Bloomington, Indiana (J.M.K., C.E.D.); and Molecular Therapeutics Program, Barbara Ann Karmanos Cancer Institute, Detroit, Michigan (S.K., X.B., J.L., L.H.M., Z.H.)
| | - Larry H Matherly
- Department of Oncology (C.O., M.S., S.K., X.B., J.L., L.H.M., Z.H.) and Department of Pharmacology (L.H.M.), Wayne State University School of Medicine, Detroit, Michigan; Division of Medicinal Chemistry, Graduate School of Pharmaceutical Sciences, Duquesne University, Pittsburgh, Pennsylvania (M.J.N., K.S., T.M., A.S., A.G.); Department of Chemistry, Indiana University, Bloomington, Indiana (J.M.K., C.E.D.); and Molecular Therapeutics Program, Barbara Ann Karmanos Cancer Institute, Detroit, Michigan (S.K., X.B., J.L., L.H.M., Z.H.)
| | - Zhanjun Hou
- Department of Oncology (C.O., M.S., S.K., X.B., J.L., L.H.M., Z.H.) and Department of Pharmacology (L.H.M.), Wayne State University School of Medicine, Detroit, Michigan; Division of Medicinal Chemistry, Graduate School of Pharmaceutical Sciences, Duquesne University, Pittsburgh, Pennsylvania (M.J.N., K.S., T.M., A.S., A.G.); Department of Chemistry, Indiana University, Bloomington, Indiana (J.M.K., C.E.D.); and Molecular Therapeutics Program, Barbara Ann Karmanos Cancer Institute, Detroit, Michigan (S.K., X.B., J.L., L.H.M., Z.H.)
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3
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Li G, Zheng H, Zhang L, Huang L, Lin W. Mitochondria-Specific Fluorescent Probe for Revealing the Interaction between Mitochondria and Lysosomes during Apoptosis. Anal Chem 2024; 96:14291-14297. [PMID: 39172597 DOI: 10.1021/acs.analchem.4c03273] [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: 08/24/2024]
Abstract
The mitochondria, as one of the essential organelles in cells, are closely associated with numerous biological processes. Therefore, the realization of clear and real-time imaging for tracking mitochondria is of profound significance. Here, we present a mitochondria-targeting fluorescent probe, N(CH2)3-PD-NEt, for the real-time fluorescence imaging of mitochondria in living cells. Using the probe, the fluorescence changes of mitochondria stimulated by different drugs were successfully observed by fluorescence imaging. In addition, the dynamic processes of mitochondria and lysosomes during apoptosis were also explored. Importantly, we observed several novel dynamic interaction patterns between mitochondria and lysosomes. Among them, the most prominent pattern involved the noncontact movements of two lysosomes, that is, one lysosome gradually approached the other lysosome over time, eventually coming into contact and merging with it while gradually combining with mitochondria to form new mitochondria. Notably, the protrusions of the mitochondria became increasingly evident during this process. Meanwhile, we successfully observed the dynamic changes of mitochondria with SIM super-resolution imaging. The study provides promising help for the in-depth study of the dynamic processes of mitochondrial physiology and pathology and the study of the interactions between organelles.
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Affiliation(s)
- Guofang Li
- Institute of Optical Materials and Chemical Biology, Guangxi Key Laboratory of Electrochemical Energy Materials, School of Chemistry and Chemical Engineering, Guangxi University, Nanning, Guangxi 530004, P. R. China
| | - Hua Zheng
- Institute of Optical Materials and Chemical Biology, Guangxi Key Laboratory of Electrochemical Energy Materials, School of Chemistry and Chemical Engineering, Guangxi University, Nanning, Guangxi 530004, P. R. China
| | - Langdi Zhang
- Institute of Optical Materials and Chemical Biology, Guangxi Key Laboratory of Electrochemical Energy Materials, School of Chemistry and Chemical Engineering, Guangxi University, Nanning, Guangxi 530004, P. R. China
| | - Ling Huang
- Institute of Optical Materials and Chemical Biology, Guangxi Key Laboratory of Electrochemical Energy Materials, School of Chemistry and Chemical Engineering, Guangxi University, Nanning, Guangxi 530004, P. R. China
| | - Weiying Lin
- Institute of Optical Materials and Chemical Biology, Guangxi Key Laboratory of Electrochemical Energy Materials, School of Chemistry and Chemical Engineering, Guangxi University, Nanning, Guangxi 530004, P. R. China
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4
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Wang T, Zhang Y. Mechanisms and therapeutic targets of carbon monoxide poisoning: A focus on reactive oxygen species. Chem Biol Interact 2024; 403:111223. [PMID: 39237073 DOI: 10.1016/j.cbi.2024.111223] [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: 04/28/2024] [Revised: 08/08/2024] [Accepted: 09/02/2024] [Indexed: 09/07/2024]
Abstract
Carbon monoxide (CO) poisoning presents a substantial public health challenge that necessitates the identification of its pathological mechanisms and therapeutic targets. CO toxicity arises from tissue hypoxia-ischemia secondary to carboxyhemoglobin formation, and cellular damage mediated by CO at the cellular level. The mitochondria are the major targets of neuronal damage caused by CO. Under normal physiological conditions, mitochondria produce reactive oxygen species (ROS), which are byproducts of aerobic metabolism. While low ROS levels are crucial for essential cellular functions, including signal transduction, differentiation, responses to hypoxia and immunity, transcriptional regulation, and autophagy, excess ROS become pathological and exacerbate CO poisoning. This review presents the evidence of elevated ROS being associated with the progression of CO poisoning. Antioxidant treatments targeting ROS removal have been proven effective in mitigating CO poisoning, underscoring their therapeutic potential. In this review, we highlight the latest advances in the understanding of the role and the clinical implications of ROS in CO poisoning. We focus on cellular sources of ROS, the molecular mechanisms underlying mitochondrial oxidative stress, and potential therapeutic strategies for targeting ROS in CO poisoning.
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Affiliation(s)
- Tianhong Wang
- Department of Neurology, The First Hospital of Lanzhou University, Lanzhou, 730000, China.
| | - Yanli Zhang
- Department of Radiology, The First Hospital of Lanzhou University, Lanzhou, 730000, China
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Chen H, Shi X, Liu N, Jiang Z, Ma C, Luo G, Liu S, Wei X, Liu Y, Ming D. Photobiomodulation therapy mitigates depressive-like behaviors by remodeling synaptic links and mitochondrial function. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY. B, BIOLOGY 2024; 258:112998. [PMID: 39096719 DOI: 10.1016/j.jphotobiol.2024.112998] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/27/2024] [Revised: 07/03/2024] [Accepted: 07/30/2024] [Indexed: 08/05/2024]
Abstract
Depression, a multifactorial mental disorder, characterized by cognitive slowing, anxiety, and impaired cognitive function, imposes a significant burden on public health. Photobiomodulation (PBM), involving exposure to sunlight or artificial light at a specific intensity and wavelength for a determined duration, influences brain activity, functional connectivity, and plasticity. It is recognized for its therapeutic efficacy in treating depression, yet its molecular and cellular underpinnings remain obscure. Here, we investigated the impact of PBM with 468 nm light on depression-like behavior and neuronal damage in the chronic unpredictable mild stress (CUMS) murine model, a commonly employed animal model for studying depression. Our results demonstrate that PBM treatment ameliorated behavioral deficits, inhibited neuroinflammation and apoptosis, and notably rejuvenates the hippocampal synaptic function in depressed mice, which may be mainly attributed to the up-regulation of brain-derived neurotrophic factor signaling pathways. In addition, in vitro experiments with a corticosterone-induced hippocampal neuron injury model demonstrate reduced oxidative stress and improved mitochondrial function, further validating the therapeutic potential of PBM. In summary, these findings suggest PBM as a promising, non-invasive treatment for depression, offering insights into its biological mechanisms and potential for clinical application.
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Affiliation(s)
- Hongli Chen
- State Key Laboratry of Separation Membrane and Membrane Process & Tianjin Key Laboratory of Optoelectronic Detection Technology and Systems, School of Life Sciences, Tiangong University, Tianjin 300387, China; Academy of Medical Engineering and Translational Medicine, Medical College, Tianjin University, Tianjin 300072, China
| | - Xinyu Shi
- State Key Laboratry of Separation Membrane and Membrane Process & Tianjin Key Laboratory of Optoelectronic Detection Technology and Systems, School of Life Sciences, Tiangong University, Tianjin 300387, China
| | - Na Liu
- State Key Laboratry of Separation Membrane and Membrane Process & Tianjin Key Laboratory of Optoelectronic Detection Technology and Systems, School of Life Sciences, Tiangong University, Tianjin 300387, China
| | - Zhongdi Jiang
- State Key Laboratry of Separation Membrane and Membrane Process & Tianjin Key Laboratory of Optoelectronic Detection Technology and Systems, School of Life Sciences, Tiangong University, Tianjin 300387, China
| | - Chunyan Ma
- State Key Laboratry of Separation Membrane and Membrane Process & Tianjin Key Laboratory of Optoelectronic Detection Technology and Systems, School of Life Sciences, Tiangong University, Tianjin 300387, China
| | - Guoshuai Luo
- Institute of Mental Health, Tianjin Anding Hospital, Mental Health Center of Tianjin Medical University, Tianjin 300222, China
| | - Shuang Liu
- Academy of Medical Engineering and Translational Medicine, Medical College, Tianjin University, Tianjin 300072, China.
| | - Xunbin Wei
- Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education), Cancer Hospital & Institute, International Cancer Institute, Institute of Medical Technology, Peking University Health Science Center, Biomedical Engineering Department, Peking University, Beijing 100191, China.
| | - Yi Liu
- State Key Laboratry of Separation Membrane and Membrane Process & Tianjin Key Laboratory of Optoelectronic Detection Technology and Systems, School of Life Sciences, Tiangong University, Tianjin 300387, China.
| | - Dong Ming
- Academy of Medical Engineering and Translational Medicine, Medical College, Tianjin University, Tianjin 300072, China
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Manna S, Agrawal R, Yadav T, Kumar TA, Kumari P, Dalai A, Kanade S, Balasubramanian N, Singh A, Chakrapani H. Orthogonal Persulfide Generation through Precision Tools Provides Insights into Mitochondrial Sulfane Sulfur. Angew Chem Int Ed Engl 2024:e202411133. [PMID: 39091222 DOI: 10.1002/anie.202411133] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2024] [Revised: 07/24/2024] [Accepted: 08/01/2024] [Indexed: 08/04/2024]
Abstract
The sulfane sulfur pool, comprised of persulfide (RS-SH) and polysulfide (RS-SnH) derived from hydrogen sulfide (H2S), has emerged as a major player in redox biochemistry. Mitochondria, besides energy generation, serve as significant cellular redox hubs, mediate stress response and cellular health. However, the effects of endogenous mitochondrial sulfane sulfur (MSS) remain largely uncharacterized as compared with their cytosolic counterparts, cytosolic sulfane sulfur (CSS). To investigate this, we designed a novel artificial substrate for mitochondrial 3-mercaptopyruvate sulfurtransferase (3-MST), a key enzyme involved in MSS biosynthesis. Using cells expressing a mitochondrion-localized persulfide biosensor, we demonstrate this tool's ability to selectively enhance MSS. While H2S was previously known to suppress human immunodeficiency virus (HIV-1), we found that MSS profoundly affected the HIV-1 life cycle, mediating viral reactivation from latency. Additionally, we provide evidence for the role of the host's mitochondrial redox state, membrane potential, apoptosis, and respiration rates in managing HIV-1 latency and reactivation. Together, dynamic fluctuations in the MSS pool have a significant and possibly conflicting effect on HIV-1 viral latency. The precision tools developed herein allow for orthogonal generation of persulfide within both mitochondria and the cytosol and will be useful in interrogating disease biology.
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Affiliation(s)
- Suman Manna
- Department of Chemistry, Indian Institute of Science Education and Research Pune, Pune, Maharashtra, 411008, India
| | - Ragini Agrawal
- Department of Microbiology and Cell Biology, Centre for Infectious Disease Research, Indian Institute of Science, Bangalore, Karnataka, 560012, India
| | - Tarun Yadav
- Department of Biology, Indian Institute of Science Education and Research Pune, Pune, Maharashtra, 411008, India
| | - T Anand Kumar
- Department of Chemistry, Indian Institute of Science Education and Research Pune, Pune, Maharashtra, 411008, India
| | - Pooja Kumari
- Department of Chemistry, Indian Institute of Science Education and Research Pune, Pune, Maharashtra, 411008, India
| | - Aadishakti Dalai
- Department of Biology, Indian Institute of Science Education and Research Pune, Pune, Maharashtra, 411008, India
| | - Shaunak Kanade
- Department of Biology, Indian Institute of Science Education and Research Pune, Pune, Maharashtra, 411008, India
| | - Nagaraj Balasubramanian
- Department of Biology, Indian Institute of Science Education and Research Pune, Pune, Maharashtra, 411008, India
| | - Amit Singh
- Department of Microbiology and Cell Biology, Centre for Infectious Disease Research, Indian Institute of Science, Bangalore, Karnataka, 560012, India
| | - Harinath Chakrapani
- Department of Chemistry, Indian Institute of Science Education and Research Pune, Pune, Maharashtra, 411008, India
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7
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Oliveira MM, Correia S, Peirone C, Magalhães M, Oliveira P, Peixoto F. Impact of ozone therapy on mouse liver mitochondrial function and antioxidant system. Biochimie 2024; 223:116-124. [PMID: 38548043 DOI: 10.1016/j.biochi.2024.03.014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2023] [Revised: 03/10/2024] [Accepted: 03/22/2024] [Indexed: 06/03/2024]
Abstract
Ozone therapy's efficacy might stem from the regulated and mild oxidative stress resulting from ozone's interactions with various biological elements. The present work aimed to characterize the hepatic mitochondrial response to ozone treatment and its relationship with the antioxidant system response. Two groups of mice were used: one control group and another injected intraperitoneally with an O3/O2 mixture (80 ml/kg) for 5 days. Mitochondrial respiration supported by different substrates was significantly inhibited, as well as complexes I and II/III, but not complex IV. The analysis of the electron transport chain complex activity showed significant inhibitions in complexes I and II/III but not in complex IV. These inhibitions can prevent mitochondrial reactive oxygen species (ROS) production. Additionally, there was a decline in glutathione content, unaccompanied by a rise in its oxidized form. The ozone-treated groups showed a significant increase in the activity of superoxide dismutase and glutathione peroxidase, while catalase and glutathione reductase experienced no significant alterations. Adenine nucleotides increased in the ozone group, but only the increase in adenosine diphosphate is significant, so the cell's energy charge is unaffected. This study shows that mitochondria may play a crucial role in ozone treatment. However, it also highlights the need for further studies to understand the molecular mechanism.
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Affiliation(s)
- Maria M Oliveira
- Chemistry Center of Vila Real, University of Trás-os-Montes and Alto Douro (UTAD), Vila Real, Portugal.
| | - Sofia Correia
- Chemistry Center of Vila Real, University of Trás-os-Montes and Alto Douro (UTAD), Vila Real, Portugal.
| | - Cecilia Peirone
- Center for the Research and Technology of Agro-Environmental and Biological Sciences (CITAB), University of Trás-os-Montes and Alto Douro (UTAD), Serviços Farmacêuticos Do CHTMAD, Vila Real, Portugal.
| | - Marques Magalhães
- Critical Care Department, University Hospital of Braga, Braga, Portugal.
| | - Paula Oliveira
- Center for the Research and Technology of Agro-Environmental and Biological Sciences (CITAB), University of Trás-os-Montes and Alto Douro (UTAD), Vila Real, Portugal.
| | - Francisco Peixoto
- Chemistry Center of Vila Real, University of Trás-os-Montes and Alto Douro (UTAD), Vila Real, Portugal.
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8
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Wang Z, Zheng F, Wei S, Li S, Xiong S, Zhang L, Wan L, Xu S, Deng J, Liu X. Exploring necrosis-associated mitochondrial gene signatures: revealing their role in prognosis and immunotherapy of renal clear cell carcinoma. Clin Exp Med 2024; 24:161. [PMID: 39023752 PMCID: PMC11258092 DOI: 10.1007/s10238-024-01426-9] [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: 04/05/2024] [Accepted: 07/07/2024] [Indexed: 07/20/2024]
Abstract
Mitochondrial dysfunction and necrotic apoptosis, pivotal in therapeutic strategies for multiple diseases, lack comprehensive understanding in the context of renal clear cell carcinoma (ccRCC). This study explores their potential as valuable tools for ccRCC prediction, prevention, and personalized medical care. Transcriptomic and clinical datasets were acquired from the Cancer Genome Atlas (TCGA) repository. Mitochondrial and necrosis-associated gene sets were sourced from MitoCarta3.0 and the KEGG Pathway databases, respectively. Six necrosis-related mitochondrial genes (nc-MTGs) with prognostic significance were analyzed and screened, and a prognostic model was constructed. The accuracy of the model was verified using external data (E-MTAB-1980). TISCH was used to explore nc-MTGs at the cellular level. Finally, the expression level of BH3 interacting domain death agonist (BID) in ccRCC cell line was detected by real-time fluorescence quantitative polymerase chain reaction (RT-qPCR), and the effect of BID down-regulation on tumor cell migration was verified by transwell assays and wound-healing experiments. We established and validated a prognostic model for clear cell renal cell carcinoma (ccRCC) utilizing six necrosis-related mitochondrial genes (nc-MTGs), affirming its efficacy in evaluating tumor progression. RT-PCR results showed that BID expression was up-regulated in ccRCC tissues compared with controls and exhibited oncogenic effects. In vitro cell function experiments showed that BID may be an important factor affecting the migration of ccRCC. Our study is the first to elucidate the biological functions and prognostic significance of mitochondrial molecules related to necroptosis, providing a new way to evaluate mitochondrial therapeutics in patients with ccRCC.
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Affiliation(s)
- Zhipeng Wang
- Department of Urology, The First Affiliated Hospital, Jiangxi Medical College, Nanchang University, Nanchang, 330000, China
- Jiangxi Provincial Key Laboratory of Urinary System Diseases, Department of Urology, The First Affiliated Hospital, Jiangxi Medical College, Nanchang University, Nanchang, Jiangxi, China
| | - Fuchun Zheng
- Department of Urology, The First Affiliated Hospital, Jiangxi Medical College, Nanchang University, Nanchang, 330000, China
- Jiangxi Provincial Key Laboratory of Urinary System Diseases, Department of Urology, The First Affiliated Hospital, Jiangxi Medical College, Nanchang University, Nanchang, Jiangxi, China
| | - Shiliang Wei
- Department of Urology, The First Affiliated Hospital, Jiangxi Medical College, Nanchang University, Nanchang, 330000, China
- Jiangxi Provincial Key Laboratory of Urinary System Diseases, Department of Urology, The First Affiliated Hospital, Jiangxi Medical College, Nanchang University, Nanchang, Jiangxi, China
| | - Sheng Li
- Department of Urology, The First Affiliated Hospital, Jiangxi Medical College, Nanchang University, Nanchang, 330000, China
- Jiangxi Provincial Key Laboratory of Urinary System Diseases, Department of Urology, The First Affiliated Hospital, Jiangxi Medical College, Nanchang University, Nanchang, Jiangxi, China
| | - Situ Xiong
- Department of Urology, The First Affiliated Hospital, Jiangxi Medical College, Nanchang University, Nanchang, 330000, China
- Jiangxi Provincial Key Laboratory of Urinary System Diseases, Department of Urology, The First Affiliated Hospital, Jiangxi Medical College, Nanchang University, Nanchang, Jiangxi, China
| | - Lei Zhang
- Department of Urology, The First Affiliated Hospital, Jiangxi Medical College, Nanchang University, Nanchang, 330000, China
- Jiangxi Provincial Key Laboratory of Urinary System Diseases, Department of Urology, The First Affiliated Hospital, Jiangxi Medical College, Nanchang University, Nanchang, Jiangxi, China
| | - Liangwei Wan
- Department of Urology, The First Affiliated Hospital, Jiangxi Medical College, Nanchang University, Nanchang, 330000, China
- Jiangxi Provincial Key Laboratory of Urinary System Diseases, Department of Urology, The First Affiliated Hospital, Jiangxi Medical College, Nanchang University, Nanchang, Jiangxi, China
| | - Songhui Xu
- Department of Urology, The First Affiliated Hospital, Jiangxi Medical College, Nanchang University, Nanchang, 330000, China
- Jiangxi Provincial Key Laboratory of Urinary System Diseases, Department of Urology, The First Affiliated Hospital, Jiangxi Medical College, Nanchang University, Nanchang, Jiangxi, China
| | - Jun Deng
- Department of Urology, The First Affiliated Hospital, Jiangxi Medical College, Nanchang University, Nanchang, 330000, China.
- Jiangxi Provincial Key Laboratory of Urinary System Diseases, Department of Urology, The First Affiliated Hospital, Jiangxi Medical College, Nanchang University, Nanchang, Jiangxi, China.
| | - Xiaoqiang Liu
- Department of Urology, The First Affiliated Hospital, Jiangxi Medical College, Nanchang University, Nanchang, 330000, China.
- Jiangxi Provincial Key Laboratory of Urinary System Diseases, Department of Urology, The First Affiliated Hospital, Jiangxi Medical College, Nanchang University, Nanchang, Jiangxi, China.
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9
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Gąssowska-Dobrowolska M, Olech-Kochańczyk G, Culmsee C, Adamczyk A. Novel Insights into Parkin-Mediated Mitochondrial Dysfunction and "Mito-Inflammation" in α-Synuclein Toxicity. The Role of the cGAS-STING Signalling Pathway. J Inflamm Res 2024; 17:4549-4574. [PMID: 39011416 PMCID: PMC11249072 DOI: 10.2147/jir.s468609] [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] [Received: 03/12/2024] [Accepted: 06/22/2024] [Indexed: 07/17/2024] Open
Abstract
The prevalence of age-related neurodegenerative diseases, such as Parkinson's disease (PD) and related disorders continues to grow worldwide. Increasing evidence links intracellular inclusions of misfolded alpha-synuclein (α-syn) aggregates, so-called Lewy bodies (LB) and Lewy neuritis, to the progressive pathology of PD and other synucleinopathies. Our previous findings established that α-syn oligomers induce S-nitrosylation and deregulation of the E3-ubiquitin ligase Parkin, leading to mitochondrial disturbances in neuronal cells. The accumulation of damaged mitochondria as a consequence, together with the release of mitochondrial-derived damage-associated molecular patterns (mtDAMPs) could activate the innate immune response and induce neuroinflammation ("mito-inflammation"), eventually accelerating neurodegeneration. However, the molecular pathways that transmit pro-inflammatory signals from damaged mitochondria are not well understood. One of the proposed pathways could be the cyclic GMP-AMP synthase (cGAS) - stimulator of interferon genes (STING) (cGAS-STING) pathway, which plays a pivotal role in modulating the innate immune response. It has recently been suggested that cGAS-STING deregulation may contribute to the development of various pathological conditions. Especially, its excessive engagement may lead to neuroinflammation and appear to be essential for the development of neurodegenerative brain diseases, including PD. However, the precise molecular mechanisms underlying cGAS-STING pathway activation in PD and other synucleinopathies are not fully understood. This review focuses on linking mitochondrial dysfunction to neuroinflammation in these disorders, particularly emphasizing the role of the cGAS-STING signaling. We propose the cGAS-STING pathway as a critical driver of inflammation in α-syn-dependent neurodegeneration and hypothesize that cGAS-STING-driven "mito-inflammation" may be one of the key mechanisms promoting the neurodegeneration in PD. Understanding the molecular mechanisms of α-syn-induced cGAS-STING-associated "mito-inflammation" in PD and related synucleinopathies may contribute to the identification of new targets for the treatment of these disorders.
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Affiliation(s)
| | - Gabriela Olech-Kochańczyk
- Department of Cellular Signalling, Mossakowski Medical Research Institute, Polish Academy of Sciences, Warsaw, Poland
| | - Carsten Culmsee
- Institute of Pharmacology and Clinical Pharmacy, University of Marburg, Marburg, Germany
- Center for Mind Brain and Behavior - CMBB, University of Marburg, Marburg, Germany
| | - Agata Adamczyk
- Department of Cellular Signalling, Mossakowski Medical Research Institute, Polish Academy of Sciences, Warsaw, Poland
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10
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Idowu M, Taiwo G, Sidney T, Treon E, Leal Y, Ologunagba D, Eichie F, Pech-Cervantes A, Ogunade IM. Effects of rumen-bypass protein supplement on growth performance, hepatic mitochondrial protein complexes, and hepatic immune gene expression of beef steers with divergent residual feed intake. PLoS One 2024; 19:e0293718. [PMID: 38959213 PMCID: PMC11221652 DOI: 10.1371/journal.pone.0293718] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2023] [Accepted: 02/21/2024] [Indexed: 07/05/2024] Open
Abstract
We investigated the impact of a rumen-bypass protein (RBP) supplement on growth performance, plasma and urinary N (UN) concentration, hepatic mitochondrial protein complexes, and hepatic mRNA expression of immune genes of beef steers with negative or positive residual feed intake (RFI) phenotype. Forty crossbred beef steers with an average body weight (BW) of 492 ± 36 kg were subjected to a generalized randomized block design over a 42-day experimental period. This study followed a 2 × 2 factorial arrangement of treatments. The factors evaluated were: 1) RFI classification (low-RFI (-2.12 kg/d) vs. high-RFI (2.02 kg/d), and 2) rumen-bypass protein supplement: RBP supplement (RBP; 227 g/steer/d) vs. control diet (CON; 0 g/d), resulting in four distinct treatments: LRFI-CON (n = 10), LRFI-RBP (n = 10), HRFI-CON (n = 10), and HRFI-RBP (n = 10). The RBP supplement (84% crude protein) is a mixture of hydrolyzed feather meal, porcine blood meal, and DL-methionine hydroxy analogue. The beef steers were stratified by BW, randomly assigned to treatments, and housed in four pens (1 treatment/pen) equipped with two GrowSafe feed bunks each to measure individual dry mater intake (DMI). Body weight was measured every 7 d. Liver tissue samples were collected on d 42 from all the beef steers. These samples were used for mRNA expression analysis of 16 immune-related genes and for evaluating the mitochondrial protein complexes I - V. No significant effects due to RBP supplementation or RFI × RBP interactions (P > 0.05) were observed for average daily gain (ADG) and DMI. However, compared to high-RFI steers, low-RFI steers showed a trend towards reduced DMI (12.9 vs. 13.6 kg/d; P = 0.07) but ADG was similar for the two RFI groups. Regardless of RFI status, supplemental RBP increased blood urea nitrogen (BUN) (P = 0.01), with a lower BUN concentration in low-RFI steers compared to high-RFI ones. A tendency for interaction (P = 0.07) between RFI and RBP was detected for the UN concentrations; feeding the dietary RBP increased the UN concentration in high-RFI beef steers (209 vs. 124 mM), whereas the concentration was lower than that of the CON group for low-RFI beef steers (86 vs. 131 mM). Interactions of RBP and RFI were observed (P ≤ 0.05) for mitochondrial activities of complexes IV, V, and mRNA expressions of some immune genes such as TLR2, TLR3, and IL23A. In conclusion, while RBP supplementation did not alter growth performance, its observed effects on hepatic immune gene expression, mitochondrial protein complexes, BUN, and UN depended on the beef steers' RFI phenotype. Therefore, the RFI status of beef steers should be considered in future studies evaluating the effects of dietary protein supplements.
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Affiliation(s)
- Modoluwamu Idowu
- Division of Animal Science, West Virginia University, Morgantown, West Virginia, United States of America
| | - Godstime Taiwo
- Division of Animal Science, West Virginia University, Morgantown, West Virginia, United States of America
| | - Taylor Sidney
- Division of Animal Science, West Virginia University, Morgantown, West Virginia, United States of America
| | - Emily Treon
- Division of Animal Science, West Virginia University, Morgantown, West Virginia, United States of America
| | - Yarahy Leal
- Division of Animal Science, West Virginia University, Morgantown, West Virginia, United States of America
| | - Deborah Ologunagba
- Division of Animal Science, West Virginia University, Morgantown, West Virginia, United States of America
| | - Francisca Eichie
- Division of Animal Science, West Virginia University, Morgantown, West Virginia, United States of America
| | - Andres Pech-Cervantes
- Division of Agriculture, Food and Resource Sciences, University of Maryland Eastern Shore, Princess Anne, Maryland, United States of America
| | - Ibukun M. Ogunade
- Division of Animal Science, West Virginia University, Morgantown, West Virginia, United States of America
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11
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Ding Y, Chen Q. Recent advances on signaling pathways and their inhibitors in spinal cord injury. Biomed Pharmacother 2024; 176:116938. [PMID: 38878684 DOI: 10.1016/j.biopha.2024.116938] [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: 04/12/2024] [Revised: 05/27/2024] [Accepted: 06/10/2024] [Indexed: 06/20/2024] Open
Abstract
Spinal cord injury (SCI) is a serious and disabling central nervous system injury. Its complex pathological mechanism can lead to sensory and motor dysfunction. It has been reported that signaling pathway plays a key role in the pathological process and neuronal recovery mechanism of SCI. Such as PI3K/Akt, MAPK, NF-κB, and Wnt/β-catenin signaling pathways. According to reports, various stimuli and cytokines activate these signaling pathways related to SCI pathology, thereby participating in the regulation of pathological processes such as inflammation response, cell apoptosis, oxidative stress, and glial scar formation after injury. Activation or inhibition of relevant pathways can delay inflammatory response, reduce neuronal apoptosis, prevent glial scar formation, improve the microenvironment after SCI, and promote neural function recovery. Based on the role of signaling pathways in SCI, they may be potential targets for the treatment of SCI. Therefore, understanding the signaling pathway and its inhibitors may be beneficial to the development of SCI therapeutic targets and new drugs. This paper mainly summarizes the pathophysiological process of SCI, the signaling pathways involved in SCI pathogenesis, and the potential role of specific inhibitors/activators in its treatment. In addition, this review also discusses the deficiencies and defects of signaling pathways in SCI research. It is hoped that this study can provide reference for future research on signaling pathways in the pathogenesis of SCI and provide theoretical basis for SCI biotherapy.
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Affiliation(s)
- Yi Ding
- Department of Spine Surgery, Ganzhou People's Hospital,16 Meiguan Avenue, Ganzhou, Jiangxi Province 341000, PR China; Department of Spine Surgery, The Affiliated Ganzhou Hospital of Nanchang University (Ganzhou Hospital-Nanfang Hospital, Southern Medical University),16 Meiguan Avenue, Ganzhou, Jiangxi Province 341000, PR China
| | - Qin Chen
- Department of Spine Surgery, Ganzhou People's Hospital,16 Meiguan Avenue, Ganzhou, Jiangxi Province 341000, PR China; Department of Spine Surgery, The Affiliated Ganzhou Hospital of Nanchang University (Ganzhou Hospital-Nanfang Hospital, Southern Medical University),16 Meiguan Avenue, Ganzhou, Jiangxi Province 341000, PR China.
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12
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Zhang W, Chen G, Chen Z, Yang X, Zhang B, Wang S, Li Z, Yang Y, Wu Y, Liu Z, Yu Z. Mitochondria-targeted polyprodrug nanoparticles induce mitochondrial stress for immunogenic chemo-photodynamic therapy of ovarian cancer. J Control Release 2024; 371:470-483. [PMID: 38849094 DOI: 10.1016/j.jconrel.2024.06.014] [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: 03/31/2024] [Revised: 06/02/2024] [Accepted: 06/04/2024] [Indexed: 06/09/2024]
Abstract
Hypoimmunogenicity and the immunosuppressive microenvironment of ovarian cancer severely restrict the capability of immune-mediated tumor killing. Immunogenic cell death (ICD) introduces a theoretical principle for antitumor immunity by increasing antigen exposure and presentation. Despite recent research progress, the currently available ICD inducers are still very limited, and many of them can hardly induce sufficient ICD based on traditional endoplasmic reticulum (ER) stress. Accumulating evidence indicates that inducing mitochondrial stress usually shows a higher efficiency in evoking large-scale ICD than that via ER stress. Inspired by this, herein, a mitochondria-targeted polyprodrug nanoparticle (named Mito-CMPN) serves as a much superior ICD inducer, effectively inducing chemo-photodynamic therapy-caused mitochondrial stress in tumor cells. The rationally designed stimuli-responsive polyprodrugs, which can self-assemble into nanoparticles, were functionalized with rhodamine B for mitochondrial targeting, cisplatin and mitoxantrone (MTO) for synergistic chemo-immunotherapy, and MTO also serves as a photosensitizer for photodynamic immunotherapy. The effectiveness and robustness of Mito-CMPNs in reversing the immunosuppressive microenvironment is verified in both an ovarian cancer subcutaneous model and a high-grade serous ovarian cancer model. Our results support that the induction of abundant ICD by focused mitochondrial stress is a highly effective strategy to improve the therapeutic efficacy of immunosuppressive ovarian cancer.
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Affiliation(s)
- Wenjia Zhang
- Department of Laboratory Medicine, Dongguan Institute of Clinical Cancer Research, The Tenth Affiliated Hospital of Southern Medical University (Dongguan People's Hospital), Dongguan, Guangdong 523058, China
| | - Gui Chen
- Department of Laboratory Medicine, Dongguan Institute of Clinical Cancer Research, The Tenth Affiliated Hospital of Southern Medical University (Dongguan People's Hospital), Dongguan, Guangdong 523058, China
| | - Ziqi Chen
- Hong Yang, Department of Gynecology, Shanghai Municipal Hospital of Traditional Chinese Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai, 200071, China
| | - Xin Yang
- Department of Obstetrics and Gynecology, The Third Affiliated Hospital of Southern Medical University, Guangzhou 510630, China
| | - Bingchen Zhang
- Department of Laboratory Medicine, Dongguan Institute of Clinical Cancer Research, The Tenth Affiliated Hospital of Southern Medical University (Dongguan People's Hospital), Dongguan, Guangdong 523058, China
| | - Shengtao Wang
- School of Biomedical Engineering and Suzhou Institute for Advanced Research, University of Science and Technology of China, Suzhou, Jiangsu 215123, China
| | - Zibo Li
- Department of Laboratory Medicine, Dongguan Institute of Clinical Cancer Research, The Tenth Affiliated Hospital of Southern Medical University (Dongguan People's Hospital), Dongguan, Guangdong 523058, China
| | - Yuanyuan Yang
- Department of Laboratory Medicine, Dongguan Institute of Clinical Cancer Research, The Tenth Affiliated Hospital of Southern Medical University (Dongguan People's Hospital), Dongguan, Guangdong 523058, China
| | - Yifen Wu
- Department of Oncology, Dongguan Institute of Clinical Cancer Research, Dongguan Key Laboratory of Precision Diagnosis and Treatment for Tumors, The Tenth Affiliated Hospital of Southern Medical University (Dongguan People's Hospital), Dongguan, Guangdong 523058, China.
| | - Zhigang Liu
- Cancer Center, Dongguan Key Laboratory of Precision Diagnosis and Treatment for Tumors, The Tenth Affiliated Hospital of Southern Medical University (Dongguan People's Hospital), Dongguan, Guangdong 523058, China.
| | - Zhiqiang Yu
- Department of Laboratory Medicine, Dongguan Institute of Clinical Cancer Research, The Tenth Affiliated Hospital of Southern Medical University (Dongguan People's Hospital), Dongguan, Guangdong 523058, China.
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13
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Xie Q, Wu H, Long H, Xiao C, Qiu J, Yu W, Jiang X, Liu J, Zhang S, Lyu Q, Suo L, Kuang Y. Secondary follicles enable efficient germline mtDNA base editing at hard-to-edit site. MOLECULAR THERAPY. NUCLEIC ACIDS 2024; 35:102170. [PMID: 38560422 PMCID: PMC10979202 DOI: 10.1016/j.omtn.2024.102170] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/03/2023] [Accepted: 03/08/2024] [Indexed: 04/04/2024]
Abstract
Efficient germline mtDNA editing is required to construct disease-related animal models and future gene therapy. Recently, the DddA-derived cytosine base editors (DdCBEs) have made mitochondrial genome (mtDNA) precise editing possible. However, there still exist challenges for editing some mtDNA sites in germline via zygote injection, probably due to the suspended mtDNA replication during preimplantation development. Here, we introduce a germline mtDNA base editing strategy: injecting DdCBEs into oocytes of secondary follicles, at which stage mtDNA replicates actively. With this method, we successfully observed efficient G-to-A conversion at a hard-to-edit site and also obtained live animal models. In addition, for those editable sites, this strategy can greatly improve the base editing efficiency up to 3-fold, which is more than that in zygotes. More important, editing in secondary follicles did not increase more the risk of off-target effects than that in zygotes. This strategy provides an option to efficiently manipulate mtDNA sites in germline, especially for hard-to-edit sites.
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Affiliation(s)
- Qin Xie
- Department of Assisted Reproduction, Shanghai Ninth People’s Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200011, China
| | - Haibo Wu
- Department of Assisted Reproduction, Shanghai Ninth People’s Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200011, China
| | - Hui Long
- Department of Assisted Reproduction, Shanghai Ninth People’s Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200011, China
| | - Caiwen Xiao
- Department of Ophthalmology, Ninth People’s Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200011, China
- Shanghai Key Laboratory of Orbital Diseases and Ocular Oncology, Shanghai 200011, China
| | - Jiaxin Qiu
- Department of Assisted Reproduction, Shanghai Ninth People’s Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200011, China
| | - Weina Yu
- Department of Assisted Reproduction, Shanghai Ninth People’s Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200011, China
| | - Xueyi Jiang
- Department of Assisted Reproduction, Shanghai Ninth People’s Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200011, China
| | - Junbo Liu
- Department of Assisted Reproduction, Shanghai Ninth People’s Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200011, China
| | - Shuo Zhang
- Department of Assisted Reproduction, Shanghai Ninth People’s Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200011, China
| | - Qifeng Lyu
- Department of Assisted Reproduction, Shanghai Ninth People’s Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200011, China
| | - Lun Suo
- Department of Assisted Reproduction, Shanghai Ninth People’s Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200011, China
| | - Yanping Kuang
- Department of Assisted Reproduction, Shanghai Ninth People’s Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200011, China
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14
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Zhang W, Liu D, Yuan M, Zhu LQ. The mechanisms of mitochondrial abnormalities that contribute to sleep disorders and related neurodegenerative diseases. Ageing Res Rev 2024; 97:102307. [PMID: 38614368 DOI: 10.1016/j.arr.2024.102307] [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: 03/09/2024] [Accepted: 04/10/2024] [Indexed: 04/15/2024]
Abstract
Sleep is a highly intricate biological phenomenon, and its disorders play a pivotal role in numerous diseases. However, the specific regulatory mechanisms remain elusive. In recent years, the role of mitochondria in sleep disorders has gained considerable attention. Sleep deprivation not only impairs mitochondrial morphology but also decreases the number of mitochondria and triggers mitochondrial dysfunction. Furthermore, mitochondrial dysfunction has been implicated in the onset and progression of various sleep disorder-related neurological diseases, especially neurodegenerative conditions. Therefore, a greater understanding of the impact of sleep disorders on mitochondrial dysfunction may reveal new therapeutic targets for neurodegenerative diseases. In this review, we comprehensively summarize the recent key findings on the mechanisms underlying mitochondrial dysfunction caused by sleep disorders and their role in initiating or exacerbating common neurodegenerative diseases. In addition, we provide fresh insights into the diagnosis and treatment of sleep disorder-related diseases.
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Affiliation(s)
- Wentao Zhang
- The Second Affiliated Hospital, Department of Neurology, Hengyang Medical School, University of South China, Hengyang, Hunan 421001, China
| | - Dan Liu
- Department of Pathophysiology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430030, China
| | - Mei Yuan
- The Second Affiliated Hospital, Department of Neurology, Hengyang Medical School, University of South China, Hengyang, Hunan 421001, China; Affiliated Nanhua Hospital, Department of Neurology, Hengyang Medical School, University of South China, Hengyang, Hunan 421001, China.
| | - Ling-Qiang Zhu
- Department of Pathophysiology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430030, China.
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15
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Cetintas SC, Akyol S, Alizada O, Akgun MY, Tahmazoglu B, Hanci M, Isler C. The Relationship Between Inflammatory Processes and Apoptosis in Lumbar Disc Degeneration. World Neurosurg 2024; 186:e261-e272. [PMID: 38548052 DOI: 10.1016/j.wneu.2024.03.121] [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: 01/12/2024] [Revised: 03/20/2024] [Accepted: 03/21/2024] [Indexed: 04/20/2024]
Abstract
OBJECTIVE Degenerative Disc Disease (DDD) is a common health problem in the population. There are recent studies focusing on relationship between DDD and immunological factors. However, there is still a lack of data on the role of apoptosis in DDD pathophysiology. Therefore, we aimed to investigate the relationship between Modic-type changes and the apoptosis in DDD. MATERIALS AND METHODS Ninety adult male patients who presented with low back and/or radicular pain and were operated on due to lumbar disc herniation were included. Three groups were formed based on Modic type degeneration observed on magnetic resonance imaging. Specific parameters involved in the intrinsic and extrinsic pathways of apoptosis were assessed in excised disc materials using the enzyme-linked immunosorbent assay method. RESULTS All three groups formed according to Modic degeneration types were homogenous in all variances. Cytochrome-C was significantly decreased only in the Modic type-3 group, whereas Tumor Necrosis Factor-Related Apoptosis-Inducing Ligand Receptor-1, B-Cell Lymphoma-2 (Bcl-2) Homologous Antagonist Killer-1, Direct Inhibitor of Apoptosis-Binding Protein with Low Pi, and Bcl-2 Associated X Apoptosis Regulator levels were significantly different in both Modic type-2 and -3 groups. However, BH3 interacting domain death agonist and Bcl-2 levels were similar across all groups. CONCLUSIONS In conclusion, this study suggests that Direct Inhibitor of Apoptosis-Binding Protein with Low Pi, cytochrome - c, Bcl-2 Associated X Apoptosis Regulator, Bcl-2 Homologous Antagonist Killer-1, and Tumor Necrosis Factor-Related Apoptosis-Inducing Ligand Receptor-1proteins play important roles in the development and progression of DDD and are correlated with Modic types. Further studies are needed to explore the potential therapeutic role of inhibiting these apoptotic proteins in DDD.
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Affiliation(s)
- Semih Can Cetintas
- Department of Neurosurgery, Turkish Ministry of Health, Bitlis State Hospital, Bitlis, Turkey
| | - Sibel Akyol
- Department of Physiology, Istanbul University-Cerrahpasa, Cerrahpasa Medical School, Istanbul, Turkey
| | - Orkhan Alizada
- Department of Neurosurgery, Baskent University, School of Medicine, Istanbul, Turkey
| | | | - Burak Tahmazoglu
- Department of Neurosurgery, Istanbul University-Cerrahpasa, Cerrahpasa Medical School, Istanbul, Turkey
| | - Murat Hanci
- Department of Neurosurgery, Istanbul University-Cerrahpasa, Cerrahpasa Medical School, Istanbul, Turkey
| | - Cihan Isler
- Department of Neurosurgery, Istanbul University-Cerrahpasa, Cerrahpasa Medical School, Istanbul, Turkey.
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16
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Shi Y, Fang Q, Hu Y, Mi Z, Luo S, Gan Y, Yuan S. Melatonin Ameliorates Post-Stroke Cognitive Impairment in Mice by Inhibiting Excessive Mitophagy. Cells 2024; 13:872. [PMID: 38786094 PMCID: PMC11119717 DOI: 10.3390/cells13100872] [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: 04/06/2024] [Revised: 05/09/2024] [Accepted: 05/14/2024] [Indexed: 05/25/2024] Open
Abstract
Post-stroke cognitive impairment (PSCI) remains the most common consequence of ischemic stroke. In this study, we aimed to investigate the role and mechanisms of melatonin (MT) in improving cognitive dysfunction in stroke mice. We used CoCl2-induced hypoxia-injured SH-SY5Y cells as a cellular model of stroke and photothrombotic-induced ischemic stroke mice as an animal model. We found that the stroke-induced upregulation of mitophagy, apoptosis, and neuronal synaptic plasticity was impaired both in vivo and in vitro. The results of the novel object recognition test and Y-maze showed significant cognitive deficits in the stroke mice, and Nissl staining showed a loss of neurons in the stroke mice. In contrast, MT inhibited excessive mitophagy both in vivo and in vitro and decreased the levels of mitophagy proteins PINK1 and Parkin, and immunofluorescence staining showed reduced co-localization of Tom20 and LC3. A significant inhibition of mitophagy levels could be directly observed under transmission electron microscopy. Furthermore, behavioral experiments and Nissl staining showed that MT ameliorated cognitive deficits and reduced neuronal loss in mice following a stroke. Our results demonstrated that MT inhibits excessive mitophagy and improves PSCI. These findings highlight the potential of MT as a preventive drug for PSCI, offering promising therapeutic implications.
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Affiliation(s)
- Yan Shi
- Key Laboratory of Study and Discovery of Small Targeted Molecules of Hunan Province, School of Medicine, Hunan Normal University, Changsha 410006, China; (Y.S.); (S.L.)
- Department of Medical Laboratory, School of Medicine, Hunan Normal University, Changsha 410006, China; (Q.F.); (Y.H.); (Z.M.); (Y.G.)
- Engineering Research Center of Reproduction and Translational Medicine of Hunan Province, School of Medicine, Hunan Normal University, Changsha 410013, China
| | - Qian Fang
- Department of Medical Laboratory, School of Medicine, Hunan Normal University, Changsha 410006, China; (Q.F.); (Y.H.); (Z.M.); (Y.G.)
| | - Yue Hu
- Department of Medical Laboratory, School of Medicine, Hunan Normal University, Changsha 410006, China; (Q.F.); (Y.H.); (Z.M.); (Y.G.)
| | - Zhaoyu Mi
- Department of Medical Laboratory, School of Medicine, Hunan Normal University, Changsha 410006, China; (Q.F.); (Y.H.); (Z.M.); (Y.G.)
| | - Shuting Luo
- Key Laboratory of Study and Discovery of Small Targeted Molecules of Hunan Province, School of Medicine, Hunan Normal University, Changsha 410006, China; (Y.S.); (S.L.)
| | - Yaoxue Gan
- Department of Medical Laboratory, School of Medicine, Hunan Normal University, Changsha 410006, China; (Q.F.); (Y.H.); (Z.M.); (Y.G.)
| | - Shishan Yuan
- Key Laboratory of Study and Discovery of Small Targeted Molecules of Hunan Province, School of Medicine, Hunan Normal University, Changsha 410006, China; (Y.S.); (S.L.)
- Department of Medical Laboratory, School of Medicine, Hunan Normal University, Changsha 410006, China; (Q.F.); (Y.H.); (Z.M.); (Y.G.)
- Engineering Research Center of Reproduction and Translational Medicine of Hunan Province, School of Medicine, Hunan Normal University, Changsha 410013, China
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Truong VL, Bae YJ, Bang JH, Jeong WS. Combination of red ginseng and velvet antler extracts prevents skin damage by enhancing the antioxidant defense system and inhibiting MAPK/AP-1/NF-κB and caspase signaling pathways in UVB-irradiated HaCaT keratinocytes and SKH-1 hairless mice. J Ginseng Res 2024; 48:323-332. [PMID: 38707646 PMCID: PMC11068995 DOI: 10.1016/j.jgr.2024.01.003] [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] [Received: 08/22/2023] [Revised: 11/29/2023] [Accepted: 01/11/2024] [Indexed: 05/07/2024] Open
Abstract
Background Studies have reported that the combination of two or more therapeutic compounds at certain ratios has more noticeable pharmaceutical properties than single compounds and requires reduced dosage of each agent. Red ginseng and velvet antler have been extensively used in boosting immunity and physical strength and preventing diseases. Thus, this study was conducted to elucidate the skin-protective potentials of red ginseng extract (RGE) and velvet antler extract (VAE) alone or in combination on ultraviolet (UVB)-irradiated human keratinocytes and SKH-1 hairless mice. Methods HaCaT cells were preincubated with RGE/VAE alone or in combination for 2 h before UVB (30 mJ/cm2) irradiation. SKH-1 mice were orally given RGE/VAE alone or in combination for 15 days before exposure to single dose of UVB (600 mJ/cm2). Treated cells and treated skin tissues were collected and subjected to subsequent experiments. Results RGE/VAE pretreatment alone or in combination significantly prevented UVB-induced cell death, apoptosis, reactive oxygen species production, and DNA damage in keratinocytes and SKH-1 mouse skins by downregulating mitogen-activated protein kinases/activator protein 1/nuclear factor kappa B and caspase signaling pathways. These extracts also strengthened the antioxidant defense systems and skin barriers in UVB-irradiated HaCaT cells and SKH-1 mouse skins. Furthermore, RGE/VAE co-administration appeared to be more effective in preventing UVB-caused skin injury than these extracts used alone. Conclusion Overall, these findings suggest that the consumption of RGE/VAE, especially in combination, offers a protective ability against UVB-caused skin injury by preventing inflammation and apoptosis and enhancing antioxidant capacity.
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Affiliation(s)
| | | | | | - Woo-Sik Jeong
- Food and Bio-industry Research Institute, School of Food Science & Biotechnology, College of Agriculture and Life Sciences, Kyungpook National University, Daegu, Republic of Korea
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18
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Wang Y, Wang Y, Wang S, Wang C, Tang Y, Zhang C, Yu D, Hou S, Lin N. Comprehensive analysis of CYBB as a prognostic marker and therapeutic target in glioma: A bioinformatics approach. Heliyon 2024; 10:e29549. [PMID: 38655339 PMCID: PMC11036048 DOI: 10.1016/j.heliyon.2024.e29549] [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: 07/19/2023] [Revised: 04/07/2024] [Accepted: 04/09/2024] [Indexed: 04/26/2024] Open
Abstract
Background In the central nervous system, glioma is the most common malignant tumor, and patients have a poor prognosis. Identification of novel marker genes and establishment of prognostic models are important for early diagnosis and prognosis determination. Methods Download glioma data from the CGGA and TCG databases. Application of bioinformatics to analyze the impact of CYBB on the clinicopathological characteristics, immunological features and prognosis of gliomas. Using single-cell sequencing data from 7 glioblastoma patients in the CGGA database, the role of CYBB in the tumor microenvironment was analyzed. In addition, a prognostic model was constructed based on CYBB high and low differentially expressed genes and mitochondrial genes. Results The expression of CYBB is closely related to various clinical features, immune cell infiltration level, immune checkpoint and survival time of patients. A 10-gene prediction model was constructed based on the differentially expressed genes of low and high CYBB and mitochondria-related genes. Glioma patients with higher risk scores had significantly lower survival probabilities. Receiver operating characteristic curves and nomograms were plotted over time to show the predictive accuracy and predictive value of the 10-gene prognostic model. Conclusions Our study shows that CYBB is strongly correlated with clinical characteristics features and prognosis of glioma patients, and can be used as a potential therapeutic target. Prognostic models based on CYBB and mitochondrial genes have good performance in predicting prognosis of glioma patients.
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Affiliation(s)
- Yu Wang
- Department of Neurosurgery, The Affliated Chuzhou Hospital of Anhui Medical University, The First People's Hospital of Chuzhou, Chuzhou, 239000, China
| | - Yuhao Wang
- Department of Neurosurgery, The Affliated Chuzhou Hospital of Anhui Medical University, The First People's Hospital of Chuzhou, Chuzhou, 239000, China
| | - Shuai Wang
- Department of Neurosurgery, The Affliated Chuzhou Hospital of Anhui Medical University, The First People's Hospital of Chuzhou, Chuzhou, 239000, China
| | - Chengcheng Wang
- Department of Neurosurgery, The Affliated Chuzhou Hospital of Anhui Medical University, The First People's Hospital of Chuzhou, Chuzhou, 239000, China
| | - Yuhang Tang
- Department of Neurosurgery, The Affliated Chuzhou Hospital of Anhui Medical University, The First People's Hospital of Chuzhou, Chuzhou, 239000, China
| | - Chao Zhang
- Department of Neurosurgery, The Affliated Chuzhou Hospital of Anhui Medical University, The First People's Hospital of Chuzhou, Chuzhou, 239000, China
| | - Dong Yu
- Department of Neurosurgery, The Affliated Chuzhou Hospital of Anhui Medical University, The First People's Hospital of Chuzhou, Chuzhou, 239000, China
| | - Shiqiang Hou
- Department of Neurosurgery, The Affliated Chuzhou Hospital of Anhui Medical University, The First People's Hospital of Chuzhou, Chuzhou, 239000, China
| | - Ning Lin
- Department of Neurosurgery, The Affliated Chuzhou Hospital of Anhui Medical University, The First People's Hospital of Chuzhou, Chuzhou, 239000, China
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Park J, Kadam PS, Atiyas Y, Chhay B, Tsourkas A, Eberwine JH, Issadore DA. High-Throughput Single-Cell, Single-Mitochondrial DNA Assay Using Hydrogel Droplet Microfluidics. Angew Chem Int Ed Engl 2024; 63:e202401544. [PMID: 38470412 DOI: 10.1002/anie.202401544] [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: 01/23/2024] [Revised: 03/06/2024] [Accepted: 03/08/2024] [Indexed: 03/13/2024]
Abstract
There is growing interest in understanding the biological implications of single cell heterogeneity and heteroplasmy of mitochondrial DNA (mtDNA), but current methodologies for single-cell mtDNA analysis limit the scale of analysis to small cell populations. Although droplet microfluidics have increased the throughput of single-cell genomic, RNA, and protein analysis, their application to sub-cellular organelle analysis has remained a largely unsolved challenge. Here, we introduce an agarose-based droplet microfluidic approach for single-cell, single-mtDNA analysis, which allows simultaneous processing of hundreds of individual mtDNA molecules within >10,000 individual cells. Our microfluidic chip encapsulates individual cells in agarose beads, designed to have a sufficiently dense hydrogel network to retain mtDNA after lysis and provide a robust scaffold for subsequent multi-step processing and analysis. To mitigate the impact of the high viscosity of agarose required for mtDNA retention on the throughput of microfluidics, we developed a parallelized device, successfully achieving ~95 % mtDNA retention from single cells within our microbeads at >700,000 drops/minute. To demonstrate utility, we analyzed specific regions of the single-mtDNA using a multiplexed rolling circle amplification (RCA) assay. We demonstrated compatibility with both microscopy, for digital counting of individual RCA products, and flow cytometry for higher throughput analysis.
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Affiliation(s)
- Juhwan Park
- Department of Bioengineering, School of Engineering and Applied Science, University of Pennsylvania, Philadelphia, Pennsylvania, 19104, USA
| | - Parnika S Kadam
- Department of Pharmacology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, 19104, USA
| | - Yasemin Atiyas
- Department of Bioengineering, School of Engineering and Applied Science, University of Pennsylvania, Philadelphia, Pennsylvania, 19104, USA
| | - Bonirath Chhay
- Department of Bioengineering, School of Engineering and Applied Science, University of Pennsylvania, Philadelphia, Pennsylvania, 19104, USA
| | - Andrew Tsourkas
- Department of Bioengineering, School of Engineering and Applied Science, University of Pennsylvania, Philadelphia, Pennsylvania, 19104, USA
| | - James H Eberwine
- Department of Pharmacology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, 19104, USA
| | - David A Issadore
- Department of Bioengineering, School of Engineering and Applied Science, University of Pennsylvania, Philadelphia, Pennsylvania, 19104, USA
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Wu W, Ma X, Chen R, Fan J, Ye W, Chen Z, Huang Q, Qian L. Effects of Phytosterol Ester Supplementation on Egg Characteristics, Eggshell Ultrastructure, Antioxidant Capacity, Liver Function and Hepatic Metabolites of Laying Hens during Peak Laying Period. Antioxidants (Basel) 2024; 13:458. [PMID: 38671906 PMCID: PMC11047565 DOI: 10.3390/antiox13040458] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2024] [Revised: 04/03/2024] [Accepted: 04/11/2024] [Indexed: 04/28/2024] Open
Abstract
The aim of this experiment was to investigate the effects of dietary Phytosterol Ester (PSE) supplementation on egg characteristics, eggshell ultrastructure, antioxidant capacity, liver function, hepatic metabolites, and its mechanism of action in Hy-Line Brown laying hens during peak laying period. A total of 256 healthy Hy-Line Brown laying hens were randomly allocated into four groups. The hens in the control group were fed a basal diet, while those in the experimental groups were fed a basal diet further supplemented with 10, 20, and 40 mg/kg PSE, respectively. It was found that the addition of 20 mg/kg and 40 mg/kg PSE to the diets increased egg weight, but decreased egg breaking strength (p < 0.05). The addition of PSEs to the diets increased albumen height and Haugh unit in all experimental groups (p < 0.05). Electron microscopic observation revealed that the mammillary thickness increased significantly at doses of 20 and 40 mg/kg, but the total thickness decreased, and the effective thickness also thinned (p < 0.05). The mammillary width narrowed in all experimental groups (p < 0.001). Dietary supplementation with 40 mg/kg PSE significantly increased egg yolk Phenylalanine, Leucine, and Isoleucine levels (p < 0.05). In untargeted liver metabolomic analyses, L-Phenylalanine increased significantly in all experimental groups. Leucyl-Lysine, Glutamyl-Leucyl-Arginine, and L-Tryptophan increased significantly at doses of 10 and 20 mg/kg (p < 0.05), and L-Tyrosine increased significantly at doses of 10 and 40 mg/kg (p = 0.033). Aspartyl-Isoleucine also increased significantly at a dose of 10 mg/kg (p = 0.044). The concentration of total protein in the liver was significantly higher at doses of 20 and 40 mg/kg than that of the control group, and the concentrations of total cholesterol and low-density lipoprotein cholesterol were significantly reduced (p < 0.05). The concentration of triglyceride and alkaline phosphatase were significantly reduced in all experimental groups (p < 0.05). Steatosis and hemorrhage in the liver were also improved by observing the H&E-stained sections of the liver. Concerning the antioxidant capacity in the liver, malondialdehyde concentration was significantly reduced (p < 0.05) at a dose of 40 mg/kg. In the ovary, malondialdehyde and nitric oxide concentrations were significantly reduced (p < 0.001). In all the experimental groups, plasma nitric oxide concentration was significantly decreased while superoxide dismutase was significantly increased, and total antioxidant capacity concentration was significantly increased (p < 0.05) in the 10 mg/kg and 40 mg/kg doses. Metabolomics analyses revealed that PSEs play a role in promoting protein synthesis by promoting Aminoacyl-tRNA biosynthesis and amino acid metabolism, among other pathways. This study showed that the dietary addition of PSEs improved egg characteristics, antioxidant capacity, liver function, and symptoms of fatty liver hemorrhagic syndrome in Hy-Line Brown laying hens at peak laying stage. The changes in liver metabolism suggest that the mechanism of action may be related to pathways such as Aminoacyl-tRNA biosynthesis and amino acid metabolism. In conclusion, the present study demonstrated that PSEs are safe and effective dietary additives as an alternative to antibiotics.
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Affiliation(s)
- Wenzi Wu
- Key Laboratory of Animal Nutrition and Feed Science in East China, Ministry of Agriculture, College of Animal Sciences, Zhejiang University, Hangzhou 310058, China; (W.W.); (X.M.); (Q.H.)
| | - Xin Ma
- Key Laboratory of Animal Nutrition and Feed Science in East China, Ministry of Agriculture, College of Animal Sciences, Zhejiang University, Hangzhou 310058, China; (W.W.); (X.M.); (Q.H.)
| | - Rui Chen
- Hainan Institute of Zhejiang University, Sanya 572025, China; (R.C.); (W.Y.); (Z.C.)
| | - Jinghui Fan
- Hangzhou Academy of Agricultural Sciences, Hangzhou 310004, China;
| | - Wenxin Ye
- Hainan Institute of Zhejiang University, Sanya 572025, China; (R.C.); (W.Y.); (Z.C.)
| | - Zhuo Chen
- Hainan Institute of Zhejiang University, Sanya 572025, China; (R.C.); (W.Y.); (Z.C.)
| | - Qixin Huang
- Key Laboratory of Animal Nutrition and Feed Science in East China, Ministry of Agriculture, College of Animal Sciences, Zhejiang University, Hangzhou 310058, China; (W.W.); (X.M.); (Q.H.)
| | - Lichun Qian
- Key Laboratory of Animal Nutrition and Feed Science in East China, Ministry of Agriculture, College of Animal Sciences, Zhejiang University, Hangzhou 310058, China; (W.W.); (X.M.); (Q.H.)
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Bhattacharya A, Chakraborty M, Chanda A, Alqahtani T, Kumer A, Dhara B, Chattopadhyay M. Neuroendocrine and cellular mechanisms in stress resilience: From hormonal influence in the CNS to mitochondrial dysfunction and oxidative stress. J Cell Mol Med 2024; 28:e18220. [PMID: 38509751 PMCID: PMC10955164 DOI: 10.1111/jcmm.18220] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2023] [Revised: 02/12/2024] [Accepted: 02/22/2024] [Indexed: 03/22/2024] Open
Abstract
Recent advancements in neuroendocrinology challenge the long-held belief that hormonal effects are confined to perivascular tissues and do not extend to the central nervous system (CNS). This paradigm shift, propelled by groundbreaking research, reveals that synthetic hormones, notably in anti-inflammatory medications, significantly influence steroid psychosis, behavioural, and cognitive impairments, as well as neuropeptide functions. A seminal development in this field occurred in 1968 with McEven's proposal that rodent brains are responsive to glucocorticoids, fundamentally altering the understanding of how anxiety impacts CNS functionality and leading to the identification of glucocorticosteroids and mineralocorticoids as distinct corticotropic receptors. This paper focuses on the intricate roles of the neuroendocrine, immunological, and CNS in fostering stress resilience, underscored by recent animal model studies. These studies highlight active, compensatory, and passive strategies for resilience, supporting the concept that anxiety and depression are systemic disorders involving dysregulation across both peripheral and central systems. Resilience is conceptualized as a multifaceted process that enhances psychological adaptability to stress through adaptive mechanisms within the immunological system, brain, hypothalamo-pituitary-adrenal axis, and ANS Axis. Furthermore, the paper explores oxidative stress, particularly its origin from the production of reactive oxygen species (ROS) in mitochondria. The mitochondria's role extends beyond ATP production, encompassing lipid, heme, purine, and steroidogenesis synthesis. ROS-induced damage to biomolecules can lead to significant mitochondrial dysfunction and cell apoptosis, emphasizing the critical nature of mitochondrial health in overall cellular function and stress resilience. This comprehensive synthesis of neuroendocrinological and cellular biological research offers new insights into the systemic complexity of stress-related disorders and the imperative for multidisciplinary approaches in their study and treatment.
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Affiliation(s)
- Arghya Bhattacharya
- Department of PharmacologyCalcutta Institute of Pharmaceutical Technology and AHSUluberiaWest BengalIndia
| | - Manas Chakraborty
- Department of Pharmaceutical BiotechnologyCalcutta institute of pharmaceutical technology and AHSUluberiaWest BengalIndia
| | - Ananya Chanda
- Department of Pharmaceutical ScienceAdamas UniversityBarasatWest BengalIndia
| | - Taha Alqahtani
- Department of Pharmacology, College of PharmacyKing Khalid UniversityAbhaSaudi Arabia
| | - Ajoy Kumer
- Department of ChemistryCollege of Arts and Sciences, IUBAT‐International University of Business Agriculture and TechnologyDhakaBangladesh
| | - Bikram Dhara
- Center for Global Health ResearchSaveetha Medical College and Hospital, Saveetha Institute of Medical and Technical SciencesChennaiIndia
- Department of Health SciencesNovel Global Community and Educational FoundationHebershamNew South WalesAustralia
| | - Moitreyee Chattopadhyay
- Department of Pharmaceutical TechnologyMaulana Abul Kalam Azad University of TechnologyKolkataWest BengalIndia
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Alghamdi SS, Alghashem SA, Ali R, Alsubait A, Suliman RS, Mohammed AE, Alehaideb Z, Alshafi RA, Alturki AY, Rahman I. Exploring the potential of Ziziphus nummularia and luteolin-7-O-glucoside as tubulin inhibitors in cancer therapy and survival. Sci Rep 2024; 14:7202. [PMID: 38531974 DOI: 10.1038/s41598-024-57680-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2023] [Accepted: 03/20/2024] [Indexed: 03/28/2024] Open
Abstract
Cancer is responsible for approximately 10 million deaths worldwide, with 70% of the deaths occurring in low- and middle-income countries; as such safer and more effective anti-cancer drugs are required. Therefore, the potential benefits of Ziziphus nummularia and Ziziphus spina-christi as sources of anti-cancer agents were investigated. Z. nummularia and Z. spina-christi extracts were prepared using chloroform, ethanol, ethyl acetate, and water. The extracts' anti-cancer properties were determined using the MTT Cell Viability Assay in four cancer cell lines: breast (KAIMRC2 and MDA-MB-231), colorectal (HCT8), and liver (HepG2). The ApoTox-Glo Triplex Assay and high-content imaging (HCI)-Apoptosis Assay were used to assess KAIMRC2 and HCT8 cells further. In addition, KAIMRC2 cells were tested for microtubule staining, and AKT/mTOR protein expression was determined by western blot analysis. Liquid chromatography-mass spectrometry (LC-MS) was performed to identify the secondary metabolites in the ethanol and ethyl acetate extracts, followed by in silico techniques to predict molecular targets and interactions, safety, and pharmacokinetic profile for identified metabolites. Out of the eight extracts, the ethanolic extract of Z. nummularia, exhibited the most potent activity against KAIMRC2 cells with an IC50 value of 29.2 μg/ml. Cancer cell treatment with the ethanolic extract of Z. nummularia resulted in a dose-dependent decrease in cell viability with increased apoptosis and cytotoxic effects. Microtubule staining showed a disrupted microtubular network. The ethanolic extract treatment of KAIMRC2 cells led to upregulated expression of pAKT and pmTOR. In silico studies predicted luteolin-7-O-glucoside to be a ligand for tubulin with the highest docking score (- 7.686) and similar binding interactions relative to the native ligand. Further computational analysis of the metabolites showed acceptable pharmacokinetic and safety profiles, although ethanolic extract metabolites were predicted to have cardiotoxic effects. Ethanolic extraction is optimal for solubilizing active anticancer metabolites from Z. nummularia, which may act by causing M-phase arrest via inhibition of tubulin polymerization. Luteolin-7-O-glucoside is the lead candidate for further research and development as an anti-cancer agent. In addition, this study suggests that herbal treatment could switch on mechanisms of adaptation and survival in cancer cells.
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Affiliation(s)
- Sahar Saleh Alghamdi
- Pharmaceutical Sciences Department, College of Pharmacy, King Saud Bin Abdulaziz University for Health Sciences, Riyadh, Kingdom of Saudi Arabia
- Medical Research Core Facility and Platforms, King Abdullah International Medical Research Center (KAIMRC), Ministry of National Guard Health Affairs, Riyadh, Kingdom of Saudi Arabia
- King Abdulaziz Medical City, Ministry of the National Guard-Health Affairs, 11426, Riyadh, Kingdom of Saudi Arabia
| | - Sara Abdulaziz Alghashem
- Pharmaceutical Sciences Department, College of Pharmacy, King Saud Bin Abdulaziz University for Health Sciences, Riyadh, Kingdom of Saudi Arabia
| | - Rizwan Ali
- Medical Research Core Facility and Platforms, King Abdullah International Medical Research Center (KAIMRC), Ministry of National Guard Health Affairs, Riyadh, Kingdom of Saudi Arabia
| | - Arwa Alsubait
- Medical Research Core Facility and Platforms, King Abdullah International Medical Research Center (KAIMRC), Ministry of National Guard Health Affairs, Riyadh, Kingdom of Saudi Arabia
- Department of Clinical Laboratory Sciences, College of Applied Medical Sciences, King Saud Bin Abdulaziz University for Health Sciences, Riyadh, Kingdom of Saudi Arabia
| | - Rasha Saad Suliman
- Pharmacy Department, Fatima College of Health Sciences (FCHS), Abu Dhabi, United Arab Emirates
| | - Afrah E Mohammed
- Department of Biology, College of Science, Princess Nourah Bint Abdulrahman University (PNU), P.O. Box 84428, 11671, Riyadh, Kingdom of Saudi Arabia
| | - Zeyad Alehaideb
- Medical Research Core Facility and Platforms, King Abdullah International Medical Research Center (KAIMRC), Ministry of National Guard Health Affairs, Riyadh, Kingdom of Saudi Arabia
- King Abdulaziz Medical City, Ministry of the National Guard-Health Affairs, 11426, Riyadh, Kingdom of Saudi Arabia
| | - Raghad Abdullah Alshafi
- Pharmaceutical Sciences Department, College of Pharmacy, King Saud Bin Abdulaziz University for Health Sciences, Riyadh, Kingdom of Saudi Arabia
| | - Allulu Yousef Alturki
- Pharmaceutical Sciences Department, College of Pharmacy, King Saud Bin Abdulaziz University for Health Sciences, Riyadh, Kingdom of Saudi Arabia
| | - Ishrat Rahman
- Department of Basic Dental Sciences, College of Dentistry, Princess Nourah Bint Abdulrahman University, P.O. Box 84428, 11671, Riyadh, Kingdom of Saudi Arabia.
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23
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Peng F, Ai X, Sun J, Yang L, Gao B. Recent advances in FRET probes for mitochondrial imaging and sensing. Chem Commun (Camb) 2024; 60:2994-3007. [PMID: 38381520 DOI: 10.1039/d4cc00018h] [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: 02/23/2024]
Abstract
Mitochondria, as essential organelles in cells, play a crucial role in cellular growth and apoptosis. Monitoring mitochondria is of great importance, as mitochondrial dysfunction is often considered a hallmark event of cell apoptosis. Traditional fluorescence probes used for mitochondrial imaging and sensing are mostly intensity-based and are susceptible to factors such as concentration, the probe environment, and fluorescence intensity. Probes based on fluorescence resonance energy transfer (FRET) can effectively overcome external interference and achieve high-contrast imaging of mitochondria as well as quantitative monitoring of mitochondrial microenvironments. This review focuses on recent advances in the application of FRET-based probes for mitochondrial structure imaging and microenvironment sensing.
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Affiliation(s)
- Fei Peng
- College of Chemistry and Materials Science, Hebei University, Baoding, 071002, China.
| | - Xiangnan Ai
- College of Chemistry and Materials Science, Hebei University, Baoding, 071002, China.
| | - Jing Sun
- College of Chemistry and Materials Science, Hebei University, Baoding, 071002, China.
| | - Linshuai Yang
- College of Chemistry and Materials Science, Hebei University, Baoding, 071002, China.
| | - Baoxiang Gao
- College of Chemistry and Materials Science, Hebei University, Baoding, 071002, China.
- Key Laboratory of Analytical Science and Technology of Hebei Province, Hebei University, Baoding 071002, Hebei, China
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24
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Chi H, Su L, Yan Y, Gu X, Su K, Li H, Yu L, Liu J, Wang J, Wu Q, Yang G. Illuminating the immunological landscape: mitochondrial gene defects in pancreatic cancer through a multiomics lens. Front Immunol 2024; 15:1375143. [PMID: 38510247 PMCID: PMC10953916 DOI: 10.3389/fimmu.2024.1375143] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2024] [Accepted: 02/16/2024] [Indexed: 03/22/2024] Open
Abstract
This comprehensive review delves into the complex interplay between mitochondrial gene defects and pancreatic cancer pathogenesis through a multiomics approach. By amalgamating data from genomic, transcriptomic, proteomic, and metabolomic studies, we dissected the mechanisms by which mitochondrial genetic variations dictate cancer progression. Emphasis has been placed on the roles of these genes in altering cellular metabolic processes, signal transduction pathways, and immune system interactions. We further explored how these findings could refine therapeutic interventions, with a particular focus on precision medicine applications. This analysis not only fills pivotal knowledge gaps about mitochondrial anomalies in pancreatic cancer but also paves the way for future investigations into personalized therapy options. This finding underscores the crucial nexus between mitochondrial genetics and oncological immunology, opening new avenues for targeted cancer treatment strategies.
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Affiliation(s)
- Hao Chi
- Faculty of Chinese Medicine, and State Key Laboratory of Quality Research in Chinese Medicine, and University Hospital, Macau University of Science and Technology, Macau, Macao SAR, China
- Clinical Medical College, Southwest Medical University, Luzhou, China
| | - Lanqian Su
- Clinical Medical College, Southwest Medical University, Luzhou, China
| | - Yalan Yan
- Clinical Medical College, Southwest Medical University, Luzhou, China
| | - Xiang Gu
- Biology Department, Southern Methodist University, Dallas, TX, United States
| | - Ke Su
- Department of Radiation Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Han Li
- Clinical Medical College, Southwest Medical University, Luzhou, China
| | - Lili Yu
- Faculty of Chinese Medicine, and State Key Laboratory of Quality Research in Chinese Medicine, and University Hospital, Macau University of Science and Technology, Macau, Macao SAR, China
| | - Jie Liu
- Department of General Surgery, Dazhou Central Hospital, Dazhou, China
| | - Jue Wang
- Faculty of Chinese Medicine, and State Key Laboratory of Quality Research in Chinese Medicine, and University Hospital, Macau University of Science and Technology, Macau, Macao SAR, China
| | - Qibiao Wu
- Faculty of Chinese Medicine, and State Key Laboratory of Quality Research in Chinese Medicine, and University Hospital, Macau University of Science and Technology, Macau, Macao SAR, China
| | - Guanhu Yang
- Faculty of Chinese Medicine, and State Key Laboratory of Quality Research in Chinese Medicine, and University Hospital, Macau University of Science and Technology, Macau, Macao SAR, China
- Department of Specialty Medicine, Ohio University, Athens, OH, United States
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25
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Štětina T, Koštál V. Extracellular freezing induces a permeability transition in the inner membrane of muscle mitochondria of freeze-sensitive but not freeze-tolerant Chymomyza costata larvae. Front Physiol 2024; 15:1358190. [PMID: 38384799 PMCID: PMC10880108 DOI: 10.3389/fphys.2024.1358190] [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: 12/19/2023] [Accepted: 01/29/2024] [Indexed: 02/23/2024] Open
Abstract
Background: Many insect species have evolved the ability to survive extracellular freezing. The search for the underlying principles of their natural freeze tolerance remains hampered by our poor understanding of the mechanistic nature of freezing damage itself. Objectives: Here, in search of potential primary cellular targets of freezing damage, we compared mitochondrial responses (changes in morphology and physical integrity, respiratory chain protein functionality, and mitochondrial inner membrane (IMM) permeability) in freeze-sensitive vs. freeze-tolerant phenotypes of the larvae of the drosophilid fly, Chymomyza costata. Methods: Larvae were exposed to freezing stress at -30°C for 1 h, which is invariably lethal for the freeze-sensitive phenotype but readily survived by the freeze-tolerant phenotype. Immediately after melting, the metabolic activity of muscle cells was assessed by the Alamar Blue assay, the morphology of muscle mitochondria was examined by transmission electron microscopy, and the functionality of the oxidative phosphorylation system was measured by Oxygraph-2K microrespirometry. Results: The muscle mitochondria of freeze-tolerant phenotype larvae remained morphologically and functionally intact after freezing stress. In contrast, most mitochondria of the freeze-sensitive phenotype were swollen, their matrix was diluted and enlarged in volume, and the structure of the IMM cristae was lost. Despite this morphological damage, the electron transfer chain proteins remained partially functional in lethally frozen larvae, still exhibiting strong responses to specific respiratory substrates and transferring electrons to oxygen. However, the coupling of electron transfer to ATP synthesis was severely impaired. Based on these results, we formulated a hypothesis linking the observed mitochondrial swelling to a sudden loss of barrier function of the IMM.
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Affiliation(s)
| | - Vladimír Koštál
- Institute of Entomology, Biology Centre of the Czech Academy of Sciences, České Budějovice, Czechia
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Zhang C, Ma Y, Zhao Y, Guo N, Han C, Wu Q, Mu C, Zhang Y, Tan S, Zhang J, Liu X. Systematic review of melatonin in cerebral ischemia-reperfusion injury: critical role and therapeutic opportunities. Front Pharmacol 2024; 15:1356112. [PMID: 38375039 PMCID: PMC10875093 DOI: 10.3389/fphar.2024.1356112] [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] [Received: 12/15/2023] [Accepted: 01/22/2024] [Indexed: 02/21/2024] Open
Abstract
Cerebral ischemia-reperfusion (I/R) injury is the predominant causes for the poor prognosis of ischemic stroke patients after reperfusion therapy. Currently, potent therapeutic interventions for cerebral I/R injury are still very limited. Melatonin, an endogenous hormone, was found to be valid in preventing I/R injury in a variety of organs. However, a systematic review covering all neuroprotective effects of melatonin in cerebral I/R injury has not been reported yet. Thus, we perform a comprehensive overview of the influence of melatonin on cerebral I/R injury by collecting all available literature exploring the latent effect of melatonin on cerebral I/R injury as well as ischemic stroke. In this systematic review, we outline the extensive scientific studies and summarize the beneficial functions of melatonin, including reducing infarct volume, decreasing brain edema, improving neurological functions and attenuating blood-brain barrier breakdown, as well as its key protective mechanisms on almost every aspect of cerebral I/R injury, including inhibiting oxidative stress, neuroinflammation, apoptosis, excessive autophagy, glutamate excitotoxicity and mitochondrial dysfunction. Subsequently, we also review the predictive and therapeutic implications of melatonin on ischemic stroke reported in clinical studies. We hope that our systematic review can provide the most comprehensive introduction of current advancements on melatonin in cerebral I/R injury and new insights into personalized diagnosis and treatment of ischemic stroke.
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Affiliation(s)
- Chenguang Zhang
- Department of Neurology, First Affiliated Hospital of China Medical University, Shenyang, Liaoning, China
| | - Yumei Ma
- Department of Neurology, First Affiliated Hospital of China Medical University, Shenyang, Liaoning, China
| | - Yating Zhao
- Department of Neurology, First Affiliated Hospital of China Medical University, Shenyang, Liaoning, China
| | - Na Guo
- Department of Neurology, First Affiliated Hospital of China Medical University, Shenyang, Liaoning, China
| | - Chen Han
- Department of Neurology, First Affiliated Hospital of China Medical University, Shenyang, Liaoning, China
| | - Qian Wu
- Department of Neurology, First Affiliated Hospital of China Medical University, Shenyang, Liaoning, China
| | - Changqing Mu
- Department of Neurology, First Affiliated Hospital of China Medical University, Shenyang, Liaoning, China
| | - Yue Zhang
- Department of Neurology, First Affiliated Hospital of China Medical University, Shenyang, Liaoning, China
| | - Shutong Tan
- Department of Neurology, First Affiliated Hospital of China Medical University, Shenyang, Liaoning, China
| | - Jian Zhang
- Department of Cell Biology, Key Laboratory of Cell Biology, Ministry of Public Health, Shenyang, Liaoning, China
- Key Laboratory of Medical Cell Biology, Ministry of Education, China Medical University, Shenyang, Liaoning, China
| | - Xu Liu
- Department of Neurology, First Affiliated Hospital of China Medical University, Shenyang, Liaoning, China
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Park J, Kadam PS, Atiyas Y, Chhay B, Tsourkas A, Eberwine JH, Issadore DA. High-throughput single-cell, single-mitochondrial DNA assay using hydrogel droplet microfluidics. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2024:2024.01.29.577854. [PMID: 38352577 PMCID: PMC10862758 DOI: 10.1101/2024.01.29.577854] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/26/2024]
Abstract
There is growing interest in understanding the biological implications of single cell heterogeneity and intracellular heteroplasmy of mtDNA, but current methodologies for single-cell mtDNA analysis limit the scale of analysis to small cell populations. Although droplet microfluidics have increased the throughput of single-cell genomic, RNA, and protein analysis, their application to sub-cellular organelle analysis has remained a largely unsolved challenge. Here, we introduce an agarose-based droplet microfluidic approach for single-cell, single-mtDNA analysis, which allows simultaneous processing of hundreds of individual mtDNA molecules within >10,000 individual cells. Our microfluidic chip encapsulates individual cells in agarose beads, designed to have a sufficiently dense hydrogel network to retain mtDNA after lysis and provide a robust scaffold for subsequent multi-step processing and analysis. To mitigate the impact of the high viscosity of agarose required for mtDNA retention on the throughput of microfluidics, we developed a parallelized device, successfully achieving ~95% mtDNA retention from single cells within our microbeads at >700,000 drops/minute. To demonstrate utility, we analyzed specific regions of the single mtDNA using a multiplexed rolling circle amplification (RCA) assay. We demonstrated compatibility with both microscopy, for digital counting of individual RCA products, and flow cytometry for higher throughput analysis.
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Kulyar MFEA, Mo Q, Yao W, Li Y, Nawaz S, Loon KS, Ahmed AE, Alsaegh AA, Al Syaad KM, Akhtar M, Bhutta ZA, Li J, Qi D. Modulation of apoptosis and Inflammasome activation in chondrocytes: co-regulatory role of Chlorogenic acid. Cell Commun Signal 2024; 22:2. [PMID: 38169388 PMCID: PMC10759508 DOI: 10.1186/s12964-023-01377-w] [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: 07/05/2023] [Accepted: 11/01/2023] [Indexed: 01/05/2024] Open
Abstract
BACKGROUND The B-cell lymphoma 2 (Bcl-2) protein regulates programmed cell death throughout the disease conditions by upholding apoptotic pathways. However, the mechanism by which it's expressed in chondrocytes still needs to be studied in chondrocyte-related disorders. Additionally, exploring the potential therapeutic role of Chlorogenic acid (CGA) in confluence with Bcl-2 modulation is of significant interest. METHODS In vivo and in vitro studies were performed according to our previous methodologies. The chondrocytes were cultured in specific growth media under standard conditions after expression verification of different microRNAs through high-throughput sequencing and verification of Bcl-2 involvement in tibial growth plates. The effect of Bcl-2 expression was investigated by transfecting chondrocytes with miR-460a, siRNA, and their negative controls alone or in combination with CGA. The RNA was extracted and subjected to a reverse transcription-quantitative polymerase chain reaction (RT-qPCR). Western blot analysis and immunofluorescence assays were performed to visualize the intracellular localization of Bcl-2 and associated proteins related to apoptotic and inflammasome pathways. Moreover, apoptosis through flow cytometry was also performed to understand the modulation of concerning pathways. RESULTS The suppression of Bcl-2 induced higher apoptosis and mitochondrial dysfunction, leading to IL-1β maturation and affecting the inflammasome during chondrocyte proliferation. Conversely, overexpression attenuated the activation, as evidenced by reduced caspase activity and IL-1β maturation. In parallel, CGA successfully reduced siRNA-induced apoptosis by decreasing Cytochrome C (Cyto C) release from the mitochondria to the cytoplasm, which in turn decreased Caspase-3 and Caspase-7 cleavage with Bcl-2-associated X protein (Bax). Furthermore, siBcl-2 transfection and CGA therapy increased chondrocyte proliferation and survival. The CGA also showed a promising approach to maintaining chondrocyte viability by inhibiting siRNA-induced apoptosis. CONCLUSIONS Targeting Bcl-2-mediated regulation might be a possible treatment for chondrocyte-related conditions. Moreover, these results add knowledge of the complicated processes underlying chondrocyte function and the pathophysiology of related diseases, highlighting the significance of target specific therapies. Video Abstract.
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Affiliation(s)
- Muhammad Fakhar-E-Alam Kulyar
- College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, 430070, People's Republic of China
- Department of Animal Nutrition and Feed Science, College of Animal Science and Technology, Huazhong Agricultural University, Wuhan, 430070, China
| | - Quan Mo
- College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, 430070, People's Republic of China
| | - Wangyuan Yao
- College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, 430070, People's Republic of China
- Department of Microbiology and Plant Pathology, University of California-Riverside, Riverside, CA, 92521, USA
| | - Yan Li
- College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, 430070, People's Republic of China
| | - Shah Nawaz
- College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, 430070, People's Republic of China
| | - Kyein San Loon
- College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, 430070, People's Republic of China
| | - Ahmed Ezzat Ahmed
- Biology Department, College of Science, King Khalid University, Abha, 61413, Saudi Arabia
| | - Aiman A Alsaegh
- Department of Laboratory Medicine, Faculty of Applied Medical Sciences, Umm Al-Qura University, Mecca, Saudi Arabia
| | - Khalid M Al Syaad
- Biology Department, College of Science, King Khalid University, Abha, 61413, Saudi Arabia
| | - Muhammad Akhtar
- College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, 430070, People's Republic of China
| | - Zeeshan Ahmad Bhutta
- Laboratory of Veterinary Immunology and Biochemistry, College of Veterinary Medicine, Chungbuk National University, Cheongju, 28644, Republic of Korea
| | - Jiakui Li
- College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, 430070, People's Republic of China.
| | - Desheng Qi
- Department of Animal Nutrition and Feed Science, College of Animal Science and Technology, Huazhong Agricultural University, Wuhan, 430070, China.
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29
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Sethiya NK, Ghiloria N, Srivastav A, Bisht D, Chaudhary SK, Walia V, Alam MS. Therapeutic Potential of Myricetin in the Treatment of Neurological, Neuropsychiatric, and Neurodegenerative Disorders. CNS & NEUROLOGICAL DISORDERS DRUG TARGETS 2024; 23:865-882. [PMID: 37461364 DOI: 10.2174/1871527322666230718105358] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/11/2022] [Revised: 12/29/2022] [Accepted: 12/29/2022] [Indexed: 06/12/2024]
Abstract
Myricetin (MC), 3,5,7,3',4',5'-hexahydroxyflavone, chemically belongs to a flavonoid category known to confer antioxidant, antimicrobial, antidiabetic, and neuroprotective effects. MC is known to suppress the generation of Reactive Oxygen Species (ROS), lipid peroxidation (MDA), and inflammatory markers. It has been reported to improve insulin function in the human brain and periphery. Besides this, it modulates several neurochemicals including glutamate, GABA, serotonin, etc. MC has been shown to reduce the expression of the enzyme Mono Amine Oxidase (MAO), which is responsible for the metabolism of monoamines. MC treatment reduces levels of plasma corticosterone and restores hippocampal BDNF (full form) protein in stressed animals. Further, MC has shown its protective effect against amyloid-beta, MPTP, rotenone, 6-OHDA, etc. suggesting its potential role against neurodegenerative disorders. The aim of the present review is to highlight the therapeutic potential of MC in the treatment of several neurological, neuropsychiatric, and neurodegenerative disorders.
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Affiliation(s)
| | - Neha Ghiloria
- Dr. Baba Saheb Ambedkar Hospital, Rohini, New Delhi 110085, India
| | | | - Dheeraj Bisht
- Department of Pharmaceutical Sciences, Sir J.C. Bose Technical Campus, Bhimtal, Kumaun University, Nainital, Uttarakhand 263002, India
| | | | - Vaibhav Walia
- Department of Pharmacology, SGT College of Pharmacy, SGT University, Gurugram, Haryana 122505, India
| | - Md Sabir Alam
- Department of Pharmaceutics, SGT College of Pharmacy, SGT University, Gurugram, Haryana 122505, India
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30
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Wen L, Shao M, Li Y, Zhang Y, Peng C, Yu H, Zhang K. Unveiling the hypoxia-induced mitophagy process through two-channel real-time imaging of NTR and viscosity under the same excitation. Talanta 2024; 266:125028. [PMID: 37549565 DOI: 10.1016/j.talanta.2023.125028] [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: 07/06/2023] [Revised: 07/30/2023] [Accepted: 08/02/2023] [Indexed: 08/09/2023]
Abstract
Mitophagy is an essential physiological process that eliminates damaged mitochondria via lysosomes. It is reported that hypoxia, inflammatory stimuli or other stress conditions could lead to mitochondrial damage and mitochondrial dysfunction, which induces the process of mitophagy. Herein, we report a novel fluorescent probe PC-NTR for imaging hypoxia-induced mitophagy by monitoring the change of nitroreductase and viscosity simultaneously. To our delight, PC-NTR could respond simultaneously to nitroreductase and viscosity at different fluorescence channels with no mutual interference under the same excitation wavelength. The fluorescence emission around 535 nm was enhanced dramatically after addition of nitroreductase while the fluorescence emission around 635 nm heightened as the viscosity increased. The probe would be able to selectively targeting of mitochondria in cells because of the positively charged pyridine salt structure of PC-NTR. The probe was successfully applied to assess the different levels of hypoxia and real-time imaging of mitochondrial autophagy in live cells. More importantly, using dual channel imaging, PC-NTR could be used to distinguish cancer cells from normal cells and was successfully applied to imaging experiments in HeLa-derived tumor-bearing nude mice. Therefore, PC-NTR would be an important molecular tool for hypoxia imaging and detecting solid tumors in vivo.
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Affiliation(s)
- Lei Wen
- Key Laboratory for Green Organic Synthesis and Application of Hunan Province, Key Laboratory of Environmentally Friendly Chemistry and Application of Ministry of Education, College of Chemistry, Xiangtan University, Xiangtan, 411105, China
| | - Mengqi Shao
- Anhui Province Key Laboratory of Major Autoimmune Diseases, Anhui Institute of Innovative Drugs, School of Pharmacy, Anhui Medical University, Hefei, 230032, China
| | - Yinhui Li
- Key Laboratory for Green Organic Synthesis and Application of Hunan Province, Key Laboratory of Environmentally Friendly Chemistry and Application of Ministry of Education, College of Chemistry, Xiangtan University, Xiangtan, 411105, China.
| | - Yanjun Zhang
- School of Basic Medical Sciences, Southwest Medical University, Luzhou, 646000, China
| | - Chao Peng
- Key Laboratory for Green Organic Synthesis and Application of Hunan Province, Key Laboratory of Environmentally Friendly Chemistry and Application of Ministry of Education, College of Chemistry, Xiangtan University, Xiangtan, 411105, China
| | - Huan Yu
- Anhui Province Key Laboratory of Major Autoimmune Diseases, Anhui Institute of Innovative Drugs, School of Pharmacy, Anhui Medical University, Hefei, 230032, China.
| | - Kai Zhang
- School of Basic Medical Sciences, Southwest Medical University, Luzhou, 646000, China.
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Cheng P, Hou Y, Bian M, Fang X, Liu Y, Rao Y, Cao S, Liu Y, Zhang S, Chen Y, Dong X, Liu Z. Parkin-mediated ubiquitination inhibits BAK apoptotic activity by blocking its canonical hydrophobic groove. Commun Biol 2023; 6:1260. [PMID: 38087033 PMCID: PMC10716173 DOI: 10.1038/s42003-023-05650-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2023] [Accepted: 11/29/2023] [Indexed: 12/18/2023] Open
Abstract
BAK permeabilizes the mitochondrial outer membrane, causing apoptosis. This apoptotic activity of BAK is stimulated by binding prodeath activators within its canonical hydrophobic groove. Parkin, an E3 ubiquitin (Ub) ligase, can ubiquitinate BAK, which inhibits BAK apoptotic activity. However, the molecular mechanism underlying the inhibition of ubiquitination remains structurally uncharacterized. Here, we utilize truncated and soluble BAK to construct a mimetic of K113-ubiquitinated BAK (disulfide-linked UbG76C ~ BAKK113C) and further present its NMR-derived structure model. The classical L8-I44-H68-V70 hydrophobic patch of the conjugated Ub subunit binds within the canonical hydrophobic groove of BAK. This Ub occludes the binding of prodeath BID activators in the groove and impairs BID-triggered BAK activation and membrane permeabilization. Reduced interaction between Ub and BAK subunits allows BID to activate K113-ubiquitinated BAK. These mechanistic insights suggest a nonsignaling function of Ub in that it directly antagonizes stimuli targeting Ub-modified proteins rather than by recruiting downstream partners for cellular messaging.
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Affiliation(s)
- Peng Cheng
- National Key Laboratory of Crop Genetic Improvement, Hubei Hongshan Laboratory, Huazhong Agricultural University, Wuhan, 430070, China
| | - Yuzhu Hou
- National Key Laboratory of Crop Genetic Improvement, Hubei Hongshan Laboratory, Huazhong Agricultural University, Wuhan, 430070, China
| | - Mingxing Bian
- National Key Laboratory of Crop Genetic Improvement, Hubei Hongshan Laboratory, Huazhong Agricultural University, Wuhan, 430070, China
| | - Xueru Fang
- National Key Laboratory of Crop Genetic Improvement, Hubei Hongshan Laboratory, Huazhong Agricultural University, Wuhan, 430070, China
| | - Yan Liu
- National Key Laboratory of Crop Genetic Improvement, Hubei Hongshan Laboratory, Huazhong Agricultural University, Wuhan, 430070, China
| | - Yuanfang Rao
- National Key Laboratory of Crop Genetic Improvement, Hubei Hongshan Laboratory, Huazhong Agricultural University, Wuhan, 430070, China
| | - Shuo Cao
- National Key Laboratory of Crop Genetic Improvement, Hubei Hongshan Laboratory, Huazhong Agricultural University, Wuhan, 430070, China
| | - Yanjun Liu
- National Key Laboratory of Crop Genetic Improvement, Hubei Hongshan Laboratory, Huazhong Agricultural University, Wuhan, 430070, China
| | - Shuai Zhang
- College of Biomedicine and Health, Huazhong Agricultural University, Wuhan, 430070, China
| | - Yanke Chen
- College of Biomedicine and Health, Huazhong Agricultural University, Wuhan, 430070, China.
| | - Xu Dong
- Wuhan Institute of Physics and Mathematics, Innovation Academy for Precision Measurement Science and Technology, Chinese Academy of Sciences, Wuhan, 430071, China.
- State Key Laboratory of Biocatalysis and Enzyme Engineering, College of Life Sciences, Hubei University, Wuhan, 430074, China.
| | - Zhu Liu
- National Key Laboratory of Crop Genetic Improvement, Hubei Hongshan Laboratory, Huazhong Agricultural University, Wuhan, 430070, China.
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Koh D, Sonker M, Arriaga EA, Ros A. Numerical modeling reveals improved organelle separation for dielectrophoretic ratchet migration. Electrophoresis 2023; 44:1826-1836. [PMID: 37622551 PMCID: PMC10905386 DOI: 10.1002/elps.202300091] [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: 04/30/2023] [Revised: 08/01/2023] [Accepted: 08/07/2023] [Indexed: 08/26/2023]
Abstract
Organelle size varies with normal and abnormal cell function. Thus, size-based particle separation techniques are key to assessing the properties of organelle subpopulations differing in size. Recently, insulator-based dielectrophoresis (iDEP) has gained significant interest as a technique to manipulate sub-micrometer-sized particles enabling the assessment of organelle subpopulations. Based on iDEP, we recently reported a ratchet device that successfully demonstrated size-based particle fractionation in combination with continuous flow sample injection. Here, we used a numerical model to optimize the performance with flow rates a factor of three higher than previously and increased the channel volume to improve throughput. We evaluated the amplitude and duration of applied low-frequency DC-biased AC potentials improving separation efficiency. A separation efficiency of nearly 0.99 was achieved with the optimization of key parameters-improved from 0.80 in previous studies (Ortiz et al. Electrophoresis, 2022;43;1283-1296)-demonstrating that fine-tuning the periodical driving forces initiating the ratchet migration under continuous flow conditions can significantly improve the fractionation of organelles of different sizes.
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Affiliation(s)
- Domin Koh
- School of Molecular Sciences, Arizona State University, Tempe, Arizona, USA
- Center for Applied Structural Discovery, The Biodesign Institute, Arizona State University, Tempe, Arizona, USA
| | - Mukul Sonker
- School of Molecular Sciences, Arizona State University, Tempe, Arizona, USA
- Center for Applied Structural Discovery, The Biodesign Institute, Arizona State University, Tempe, Arizona, USA
| | - Edgar A Arriaga
- Department of Chemistry, University of Minnesota, Minneapolis, Minnesota, USA
| | - Alexandra Ros
- School of Molecular Sciences, Arizona State University, Tempe, Arizona, USA
- Center for Applied Structural Discovery, The Biodesign Institute, Arizona State University, Tempe, Arizona, USA
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33
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Pelletier M, Breton Y, Allaeys I, Becker Y, Benson T, Boilard E. Platelet extracellular vesicles and their mitochondrial content improve the mitochondrial bioenergetics of cellular immune recipients. Transfusion 2023; 63:1983-1996. [PMID: 37642274 DOI: 10.1111/trf.17524] [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: 04/17/2023] [Revised: 08/12/2023] [Accepted: 08/12/2023] [Indexed: 08/31/2023]
Abstract
BACKGROUND Mitochondria play a critical role in the production of cell energy and the regulation of cell death. Therefore, mitochondria orchestrate numerous cell effector functions, including fine-tuning the immune system. While mitochondria are mainly found intracellularly, they can escape the confine of the cell during the process of extracellular vesicle release. Platelets patrol blood vessels to ensure vasculature integrity and to support the immune system. In blood, platelets are the primary source of circulating mitochondria. Activated platelets produce extracellular vesicles, including a subset of mitochondria-containing vesicles. STUDY DESIGN AND METHODS We characterized mitochondrial functions in platelet-derived extracellular vesicles, and examined whether they could impact the bioenergetics of cellular immune recipients using an extracellular flux analyzer to measure real-time bioenergetics. RESULTS We validated that extracellular vesicles derived from activated platelets contain the necessary mitochondrial machinery to respirate and generate energy. Moreover, neutrophils and monocytes efficiently captured platelet-derived extracellular vesicles, enhancing their mitochondrial fitness. This process required functional mitochondria from donor platelets, as it was abolished by the inactivation of extracellular mitochondria using mitochondrial poison. DISCUSSION Together, the data suggest that extracellular mitochondria produced by platelets may support other metabolic functions through transcellular bioenergetics.
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Affiliation(s)
- Martin Pelletier
- Infectious and Immune Diseases Axis, Centre de Recherche du Centre Hospitalier Universitaire de Québec-Université Laval, Québec, Québec, Canada
- Centre de Recherche ARThrite - Arthrite, Recherche, Traitements, Université Laval, Québec, Québec, Canada
| | - Yann Breton
- Infectious and Immune Diseases Axis, Centre de Recherche du Centre Hospitalier Universitaire de Québec-Université Laval, Québec, Québec, Canada
- Centre de Recherche ARThrite - Arthrite, Recherche, Traitements, Université Laval, Québec, Québec, Canada
| | - Isabelle Allaeys
- Infectious and Immune Diseases Axis, Centre de Recherche du Centre Hospitalier Universitaire de Québec-Université Laval, Québec, Québec, Canada
- Centre de Recherche ARThrite - Arthrite, Recherche, Traitements, Université Laval, Québec, Québec, Canada
| | - Yann Becker
- Infectious and Immune Diseases Axis, Centre de Recherche du Centre Hospitalier Universitaire de Québec-Université Laval, Québec, Québec, Canada
- Centre de Recherche ARThrite - Arthrite, Recherche, Traitements, Université Laval, Québec, Québec, Canada
| | - Tom Benson
- Mitrix Bio Inc., Pleasanton, California, USA
| | - Eric Boilard
- Infectious and Immune Diseases Axis, Centre de Recherche du Centre Hospitalier Universitaire de Québec-Université Laval, Québec, Québec, Canada
- Centre de Recherche ARThrite - Arthrite, Recherche, Traitements, Université Laval, Québec, Québec, Canada
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Huang T, Lin R, Su Y, Sun H, Zheng X, Zhang J, Lu X, Zhao B, Jiang X, Huang L, Li N, Shi J, Fan X, Xu D, Zhang T, Gao J. Efficient intervention for pulmonary fibrosis via mitochondrial transfer promoted by mitochondrial biogenesis. Nat Commun 2023; 14:5781. [PMID: 37723135 PMCID: PMC10507082 DOI: 10.1038/s41467-023-41529-7] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2023] [Accepted: 09/06/2023] [Indexed: 09/20/2023] Open
Abstract
The use of exogenous mitochondria to replenish damaged mitochondria has been proposed as a strategy for the treatment of pulmonary fibrosis. However, the success of this strategy is partially restricted by the difficulty of supplying sufficient mitochondria to diseased cells. Herein, we report the generation of high-powered mesenchymal stem cells with promoted mitochondrial biogenesis and facilitated mitochondrial transfer to injured lung cells by the sequential treatment of pioglitazone and iron oxide nanoparticles. This highly efficient mitochondrial transfer is shown to not only restore mitochondrial homeostasis but also reactivate inhibited mitophagy, consequently recovering impaired cellular functions. We perform studies in mouse to show that these high-powered mesenchymal stem cells successfully mitigate fibrotic progression in a progressive fibrosis model, which was further verified in a humanized multicellular lung spheroid model. The present findings provide a potential strategy to overcome the current limitations in mitochondrial replenishment therapy, thereby promoting therapeutic applications for fibrotic intervention.
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Affiliation(s)
- Ting Huang
- College of Pharmaceutical Sciences, Zhejiang University, 310058, Hangzhou, China
| | - Ruyi Lin
- College of Pharmaceutical Sciences, Zhejiang University, 310058, Hangzhou, China
| | - Yuanqin Su
- College of Pharmaceutical Sciences, Zhejiang University, 310058, Hangzhou, China
- Hangzhou Institute of Innovative Medicine, College of Pharmaceutical Sciences, Zhejiang University, 310058, Hangzhou, China
| | - Hao Sun
- College of Pharmaceutical Sciences, Zhejiang University, 310058, Hangzhou, China
| | - Xixi Zheng
- College of Pharmaceutical Sciences, Zhejiang University, 310058, Hangzhou, China
- Hangzhou Institute of Innovative Medicine, College of Pharmaceutical Sciences, Zhejiang University, 310058, Hangzhou, China
| | - Jinsong Zhang
- College of Pharmaceutical Sciences, Zhejiang University, 310058, Hangzhou, China
| | - Xiaoyan Lu
- College of Pharmaceutical Sciences, Zhejiang University, 310058, Hangzhou, China
| | - Baiqin Zhao
- Department of Thoracic Surgery, The Second Affiliated Hospital, Zhejiang University School of Medicine, 310009, Hangzhou, China
| | - Xinchi Jiang
- College of Pharmaceutical Sciences, Zhejiang University, 310058, Hangzhou, China
| | - Lingling Huang
- Department of Pharmacy, The Second Affiliated Hospital, Zhejiang University School of Medicine, 310009, Hangzhou, China
| | - Ni Li
- Department of Cardiothoracic Surgery, Ningbo Medical Centre Lihuili Hospital, Ningbo University, 315041, Ningbo, China
| | - Jing Shi
- School of Pharmaceutical Sciences, Hangzhou Medical College, 311300, Hangzhou, China
| | - Xiaohui Fan
- College of Pharmaceutical Sciences, Zhejiang University, 310058, Hangzhou, China
- National Key Laboratory of Chinese Medicine Modernization, Innovation Center of Yangtze River Delta, Zhejiang University, 314102, Jiaxing, China
| | - Donghang Xu
- Department of Pharmacy, The Second Affiliated Hospital, Zhejiang University School of Medicine, 310009, Hangzhou, China
| | - Tianyuan Zhang
- College of Pharmaceutical Sciences, Zhejiang University, 310058, Hangzhou, China.
- Hangzhou Institute of Innovative Medicine, College of Pharmaceutical Sciences, Zhejiang University, 310058, Hangzhou, China.
- National Key Laboratory of Advanced Drug Delivery and Release Systems, Zhejiang University, 310058, Hangzhou, China.
| | - Jianqing Gao
- College of Pharmaceutical Sciences, Zhejiang University, 310058, Hangzhou, China.
- Hangzhou Institute of Innovative Medicine, College of Pharmaceutical Sciences, Zhejiang University, 310058, Hangzhou, China.
- Department of Pharmacy, The Second Affiliated Hospital, Zhejiang University School of Medicine, 310009, Hangzhou, China.
- National Key Laboratory of Advanced Drug Delivery and Release Systems, Zhejiang University, 310058, Hangzhou, China.
- Cancer Center, Zhejiang University, 310058, Hangzhou, China.
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Cao X, Yao F, Zhang B, Sun X. Mitochondrial dysfunction in heart diseases: Potential therapeutic effects of Panax ginseng. Front Pharmacol 2023; 14:1218803. [PMID: 37547332 PMCID: PMC10399631 DOI: 10.3389/fphar.2023.1218803] [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] [Received: 05/08/2023] [Accepted: 07/12/2023] [Indexed: 08/08/2023] Open
Abstract
Heart diseases have a high incidence and mortality rate, and seriously affect people's quality of life. Mitochondria provide energy for the heart to function properly. The process of various heart diseases is closely related to mitochondrial dysfunction. Panax ginseng (P. ginseng), as a traditional Chinese medicine, is widely used to treat various cardiovascular diseases. Many studies have confirmed that P. ginseng and ginsenosides can regulate and improve mitochondrial dysfunction. Therefore, the role of mitochondria in various heart diseases and the protective effect of P. ginseng on heart diseases by regulating mitochondrial function were reviewed in this paper, aiming to gain new understanding of the mechanisms, and promote the clinical application of P. ginseng.
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Affiliation(s)
- Xinxin Cao
- Institute of Medicinal Plant Development, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing, China
- Key Laboratory of Bioactive Substances and Resources Utilization of Chinese Herbal Medicine, Ministry of Education, Beijing, China
- Beijing Key Laboratory of Innovative Drug Discovery of Traditional Chinese Medicine (Natural Medicine) and Translational Medicine, Beijing, China
- Key Laboratory of Efficacy Evaluation of Chinese Medicine Against Glyeolipid Metabolism Disorder Disease, State Administration of Traditional Chinese Medicine, Beijing, China
| | - Fan Yao
- Institute of Medicinal Plant Development, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing, China
- Key Laboratory of Bioactive Substances and Resources Utilization of Chinese Herbal Medicine, Ministry of Education, Beijing, China
- Beijing Key Laboratory of Innovative Drug Discovery of Traditional Chinese Medicine (Natural Medicine) and Translational Medicine, Beijing, China
- Key Laboratory of Efficacy Evaluation of Chinese Medicine Against Glyeolipid Metabolism Disorder Disease, State Administration of Traditional Chinese Medicine, Beijing, China
| | - Bin Zhang
- Institute of Medicinal Plant Development, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing, China
- Key Laboratory of Bioactive Substances and Resources Utilization of Chinese Herbal Medicine, Ministry of Education, Beijing, China
- Beijing Key Laboratory of Innovative Drug Discovery of Traditional Chinese Medicine (Natural Medicine) and Translational Medicine, Beijing, China
- Key Laboratory of Efficacy Evaluation of Chinese Medicine Against Glyeolipid Metabolism Disorder Disease, State Administration of Traditional Chinese Medicine, Beijing, China
| | - Xiaobo Sun
- Institute of Medicinal Plant Development, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing, China
- Key Laboratory of Bioactive Substances and Resources Utilization of Chinese Herbal Medicine, Ministry of Education, Beijing, China
- Beijing Key Laboratory of Innovative Drug Discovery of Traditional Chinese Medicine (Natural Medicine) and Translational Medicine, Beijing, China
- Key Laboratory of Efficacy Evaluation of Chinese Medicine Against Glyeolipid Metabolism Disorder Disease, State Administration of Traditional Chinese Medicine, Beijing, China
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He LY, Li Y, Niu SQ, Bai J, Liu SJ, Guo JL. Polysaccharides from natural resource: ameliorate type 2 diabetes mellitus via regulation of oxidative stress network. Front Pharmacol 2023; 14:1184572. [PMID: 37497112 PMCID: PMC10367013 DOI: 10.3389/fphar.2023.1184572] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2023] [Accepted: 07/04/2023] [Indexed: 07/28/2023] Open
Abstract
Diabetes mellitus (DM) is a group of metabolic diseases characterized by hyperglycemia that can occur in children, adults, elderly people, and pregnant women. Oxidative stress is a significant adverse factor in the pathogenesis of DM, especially type 2 diabetes mellitus (T2DM), and metabolic syndrome. Natural polysaccharides are macromolecular compounds widely distributed in nature. Some polysaccharides derived from edible plants and microorganisms were reported as early as 10 years ago. However, the structural characterization of polysaccharides and their therapeutic mechanisms in diabetes are relatively shallow, limiting the application of polysaccharides. With further research, more natural polysaccharides have been reported to have antioxidant activity and therapeutic effects in diabetes, including plant polysaccharides, microbial polysaccharides, and polysaccharides from marine organisms and animals. Therefore, this paper summarizes the natural polysaccharides that have therapeutic potential for diabetes in the past 5 years, elucidating their pharmacological mechanisms and identified primary structures. It is expected to provide some reference for the application of polysaccharides, and provide a valuable resource for the development of new diabetic drugs.
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Affiliation(s)
- Li-Ying He
- Key Laboratory of Characteristic Chinese Medicine Resources in Southwest China, College of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Yong Li
- Key Laboratory of Characteristic Chinese Medicine Resources in Southwest China, College of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Shu-Qi Niu
- College of Medical Technology, Chengdu University of Traditional Chinese Medicine, Chengdu, China
- Chongqing Key Laboratory of Sichuan-Chongqing Co Construction for Diagnosis and Treatment of Infectious Diseases Integrated Traditional Chinese and Western Medicine, Chongqing, China
| | - Jing Bai
- College of Medical Technology, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Si-Jing Liu
- College of Medical Technology, Chengdu University of Traditional Chinese Medicine, Chengdu, China
- Chongqing Key Laboratory of Sichuan-Chongqing Co Construction for Diagnosis and Treatment of Infectious Diseases Integrated Traditional Chinese and Western Medicine, Chongqing, China
| | - Jin-Lin Guo
- Key Laboratory of Characteristic Chinese Medicine Resources in Southwest China, College of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, China
- College of Medical Technology, Chengdu University of Traditional Chinese Medicine, Chengdu, China
- Chongqing Key Laboratory of Sichuan-Chongqing Co Construction for Diagnosis and Treatment of Infectious Diseases Integrated Traditional Chinese and Western Medicine, Chongqing, China
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Gumpp AM, Behnke A, Ramo-Fernández L, Radermacher P, Gündel H, Ziegenhain U, Karabatsiakis A, Kolassa IT. Investigating mitochondrial bioenergetics in peripheral blood mononuclear cells of women with childhood maltreatment from post-parturition period to one-year follow-up. Psychol Med 2023; 53:3793-3804. [PMID: 35311632 PMCID: PMC10317795 DOI: 10.1017/s0033291722000411] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/22/2021] [Revised: 12/27/2021] [Accepted: 02/04/2022] [Indexed: 11/07/2022]
Abstract
BACKGROUND Childhood maltreatment (CM) exerts various long-lasting psychological and biological changes in affected individuals, with inflammation being an interconnecting element. Besides chronic low-grade inflammation, CM might also affect the energy production of cells by altering the function and density of mitochondria, i.e. the body's main energy suppliers. Here, we compared mitochondrial respiration and density in intact peripheral blood mononuclear cells (PBMC), from women with and without CM between two time points, i.e. at the highly inflammatory phase within 1 week after parturition (t0) and again after 1 year (t2). METHODS CM exposure was assessed with the Childhood Trauma Questionnaire. Whole blood was collected from n = 52 healthy women within the study 'My Childhood - Your Childhood' at both time points to isolate and cryopreserve PBMC. Thawed PBMC were used to measure mitochondrial respiration and density by high-resolution respirometry followed by spectrophotometric analyses of citrate-synthase activity. RESULTS Over time, quantitative respiratory parameters increased, while qualitative flux control ratios decreased, independently of CM. Women with CM showed higher mitochondrial respiration and density at t0, but not at t2. We found significant CM group × time interaction effects for ATP-turnover-related respiration and mitochondrial density. CONCLUSIONS This is the first study to longitudinally investigate mitochondrial bioenergetics in postpartum women with and without CM. Our results indicate that CM-related mitochondrial alterations reflect allostatic load, probably due to higher inflammatory states during parturition, which normalize later. However, later inflammatory states might moderate the vulnerability for a second-hit on the level of mitochondrial bioenergetics, at least in immune cells.
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Affiliation(s)
- Anja M. Gumpp
- Clinical & Biological Psychology, Institute of Psychology and Education, Ulm University, Ulm, Germany
| | - Alexander Behnke
- Clinical & Biological Psychology, Institute of Psychology and Education, Ulm University, Ulm, Germany
| | - Laura Ramo-Fernández
- Clinical & Biological Psychology, Institute of Psychology and Education, Ulm University, Ulm, Germany
| | - Peter Radermacher
- Institute of Anesthesiological Pathophysiology and Process Engineering, University Hospital Ulm, Ulm, Germany
| | - Harald Gündel
- Department of Psychosomatic Medicine and Psychotherapy, University Hospital Ulm, Ulm, Germany
| | - Ute Ziegenhain
- Department of Child and Adolescent Psychiatry and Psychotherapy, University Hospital Ulm, Ulm, Germany
| | - Alexander Karabatsiakis
- Clinical & Biological Psychology, Institute of Psychology and Education, Ulm University, Ulm, Germany
- Clinical Psychology, Institute of Psychology, University of Innsbruck, Innsbruck, Austria
| | - Iris-Tatjana Kolassa
- Clinical & Biological Psychology, Institute of Psychology and Education, Ulm University, Ulm, Germany
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Mertens RT, Gukathasan S, Arojojoye AS, Olelewe C, Awuah SG. Next Generation Gold Drugs and Probes: Chemistry and Biomedical Applications. Chem Rev 2023; 123:6612-6667. [PMID: 37071737 PMCID: PMC10317554 DOI: 10.1021/acs.chemrev.2c00649] [Citation(s) in RCA: 18] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/20/2023]
Abstract
The gold drugs, gold sodium thiomalate (Myocrisin), aurothioglucose (Solganal), and the orally administered auranofin (Ridaura), are utilized in modern medicine for the treatment of inflammatory arthritis including rheumatoid and juvenile arthritis; however, new gold agents have been slow to enter the clinic. Repurposing of auranofin in different disease indications such as cancer, parasitic, and microbial infections in the clinic has provided impetus for the development of new gold complexes for biomedical applications based on unique mechanistic insights differentiated from auranofin. Various chemical methods for the preparation of physiologically stable gold complexes and associated mechanisms have been explored in biomedicine such as therapeutics or chemical probes. In this Review, we discuss the chemistry of next generation gold drugs, which encompasses oxidation states, geometry, ligands, coordination, and organometallic compounds for infectious diseases, cancer, inflammation, and as tools for chemical biology via gold-protein interactions. We will focus on the development of gold agents in biomedicine within the past decade. The Review provides readers with an accessible overview of the utility, development, and mechanism of action of gold-based small molecules to establish context and basis for the thriving resurgence of gold in medicine.
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Affiliation(s)
- R Tyler Mertens
- Department of Chemistry, University of Kentucky, Lexington, Kentucky 40506, United States
| | - Sailajah Gukathasan
- Department of Chemistry, University of Kentucky, Lexington, Kentucky 40506, United States
| | - Adedamola S Arojojoye
- Department of Chemistry, University of Kentucky, Lexington, Kentucky 40506, United States
| | - Chibuzor Olelewe
- Department of Chemistry, University of Kentucky, Lexington, Kentucky 40506, United States
| | - Samuel G Awuah
- Department of Chemistry, University of Kentucky, Lexington, Kentucky 40506, United States
- Department of Pharmaceutical Sciences, College of Pharmacy, University of Kentucky, Lexington, Kentucky 40536, United States
- University of Kentucky Markey Cancer Center, Lexington, Kentucky 40536, United States
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Zhuang J, Wang B, Chen H, Zhang K, Li N, Zhao N, Tang BZ. Efficient NIR-II Type-I AIE Photosensitizer for Mitochondria-Targeted Photodynamic Therapy through Synergistic Apoptosis-Ferroptosis. ACS NANO 2023; 17:9110-9125. [PMID: 37144959 DOI: 10.1021/acsnano.2c12319] [Citation(s) in RCA: 26] [Impact Index Per Article: 26.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/06/2023]
Abstract
Hypoxia, the hallmark of malignant tumors, has been recognized as a major obstacle for photodynamic therapy (PDT). Precisely targeting cancer cells in intricate biological scenarios by a hypoxia-resistant photosensitizer (PS) is the cornerstone to conquer the inevitable tumor recurrence and metastasis. Herein, we describe an organic NIR-II PS (TPEQM-DMA) possessing potent type-I phototherapeutic efficacy to overcome the intrinsic pitfalls of PDT in combating hypoxic tumors. TPEQM-DMA exhibited prominent NIR-II emission (>1000 nm) with an aggregation-induced emission feature and efficiently produced superoxide anion and hydroxyl radical in the aggregate state under white light irradiation exclusively through a low-O2-dependent type-I photochemical process. The suitable cationic nature assisted TPEQM-DMA to accumulate in cancerous mitochondria. Meanwhile, the PDT of TPEQM-DMA impaired the cellular redox homeostasis, led to the mitochondrial dysfunction, and raised the level of lethal peroxidized lipids, which induced cellular apoptosis and ferroptosis. This synergistic cell death modality enabled TPEQM-DMA to suppress the growth of cancer cells, multicellular tumor spheroids, and tumors. To improve the pharmacological properties of TPEQM-DMA, TPEQM-DMA nanoparticles were prepared by encapsulation of polymer. In vivo experiments proved the appealing NIR-II fluorescence imaging-guided PDT effect of TPEQM-DMA nanoparticles for tumors.
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Affiliation(s)
- Jiabao Zhuang
- Key Laboratory of Applied Surface and Colloid Chemistry of MOE, Key Laboratory of Macromolecular Science of Shaanxi Province, School of Chemistry & Chemical Engineering, Shaanxi Normal University, Xi'an 710119, China
| | - Bing Wang
- Key Laboratory of Applied Surface and Colloid Chemistry of MOE, Key Laboratory of Macromolecular Science of Shaanxi Province, School of Chemistry & Chemical Engineering, Shaanxi Normal University, Xi'an 710119, China
| | - Huan Chen
- Key Laboratory of Applied Surface and Colloid Chemistry of MOE, Key Laboratory of Macromolecular Science of Shaanxi Province, School of Chemistry & Chemical Engineering, Shaanxi Normal University, Xi'an 710119, China
| | - Keyi Zhang
- Key Laboratory of Applied Surface and Colloid Chemistry of MOE, Key Laboratory of Macromolecular Science of Shaanxi Province, School of Chemistry & Chemical Engineering, Shaanxi Normal University, Xi'an 710119, China
| | - Nan Li
- Key Laboratory of Applied Surface and Colloid Chemistry of MOE, Key Laboratory of Macromolecular Science of Shaanxi Province, School of Chemistry & Chemical Engineering, Shaanxi Normal University, Xi'an 710119, China
| | - Na Zhao
- Key Laboratory of Applied Surface and Colloid Chemistry of MOE, Key Laboratory of Macromolecular Science of Shaanxi Province, School of Chemistry & Chemical Engineering, Shaanxi Normal University, Xi'an 710119, China
| | - Ben Zhong Tang
- School of Science and Engineering, Shenzhen Institute of Aggregate Science and Technology, The Chinese University of Hong Kong, Shenzhen, Guangdong 518172, China
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Zhang D, Man D, Lu J, Jiang Y, Ding B, Su R, Tong R, Chen J, Yang B, Zheng S, Chen D, Wu J. Mitochondrial TSPO Promotes Hepatocellular Carcinoma Progression through Ferroptosis Inhibition and Immune Evasion. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2023; 10:e2206669. [PMID: 36994647 PMCID: PMC10214260 DOI: 10.1002/advs.202206669] [Citation(s) in RCA: 17] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/14/2022] [Revised: 02/14/2023] [Indexed: 05/27/2023]
Abstract
Hepatocellular carcinoma (HCC) is one of the most common malignancies with poor prognosis, and novel treatment strategies are urgently needed. Mitochondria are key regulators of cellular homeostasis and potential targets for tumor therapy. Here, the role of mitochondrial translocator protein (TSPO) in the regulation of ferroptosis and antitumor immunity is investigated and the potential therapeutic implications for HCC are assessed. TSPO is highly expressed in HCC and associated with poor prognosis. Gain- and loss-of-function experiments present that TSPO promotes HCC cell growth, migration, and invasion in vitro and in vivo. In addition, TSPO inhibits ferroptosis in HCC cells via enhancing the Nrf2-dependent antioxidant defense system. Mechanistically, TSPO directly interacts with P62 and interferes with autophagy, leading to the accumulation of P62. The P62 accumulation competes with KEAP1, preventing it from targeting Nrf2 for proteasomal degradation. Furthermore, TSPO promotes HCC immune escape by upregulating PD-L1 expression through Nrf2-mediated transcription. Notably, TSPO inhibitor PK11195 combines with anti-PD-1 antibody showing a synergistic anti-tumor effect in a mouse model. Overall, the results demonstrated that mitochondrial TSPO promotes HCC progression by inhibiting ferroptosis and antitumor immunity. Targeting TSPO can be a promising new strategy for HCC treatment.
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Affiliation(s)
- Deguo Zhang
- Division of Hepatobiliary and Pancreatic SurgeryDepartment of SurgeryThe First Affiliated HospitalZhejiang University School of MedicineHangzhouZhejiang Province310003China
| | - Da Man
- Division of Hepatobiliary and Pancreatic SurgeryDepartment of SurgeryThe First Affiliated HospitalZhejiang University School of MedicineHangzhouZhejiang Province310003China
| | - Jiahua Lu
- Division of Hepatobiliary and Pancreatic SurgeryDepartment of SurgeryThe First Affiliated HospitalZhejiang University School of MedicineHangzhouZhejiang Province310003China
| | - Yifan Jiang
- Division of Hepatobiliary and Pancreatic SurgeryDepartment of SurgeryThe First Affiliated HospitalZhejiang University School of MedicineHangzhouZhejiang Province310003China
- NHC Key Laboratory of Combined Multi‐organ TransplantationHangzhouZhejiang Province310003China
| | - Bo Ding
- Division of Hepatobiliary and Pancreatic SurgeryDepartment of SurgeryThe First Affiliated HospitalZhejiang University School of MedicineHangzhouZhejiang Province310003China
- Key Laboratory of the Diagnosis and Treatment of Organ TransplantationResearch Unit of Collaborative Diagnosis and Treatment For Hepatobiliary and Pancreatic CancerChinese Academy of Medical Sciences (2019RU019)HangzhouZhejiang Province310003China
| | - Rong Su
- NHC Key Laboratory of Combined Multi‐organ TransplantationHangzhouZhejiang Province310003China
- Key Laboratory of the Diagnosis and Treatment of Organ TransplantationResearch Unit of Collaborative Diagnosis and Treatment For Hepatobiliary and Pancreatic CancerChinese Academy of Medical Sciences (2019RU019)HangzhouZhejiang Province310003China
- Key Laboratory of Organ TransplantationResearch Center for Diagnosis and Treatment of Hepatobiliary DiseasesHangzhouZhejiang Province310003China
| | - Rongliang Tong
- Division of Hepatobiliary and Pancreatic SurgeryDepartment of SurgeryThe First Affiliated HospitalZhejiang University School of MedicineHangzhouZhejiang Province310003China
| | - Junru Chen
- Division of Hepatobiliary and Pancreatic SurgeryDepartment of SurgeryThe First Affiliated HospitalZhejiang University School of MedicineHangzhouZhejiang Province310003China
| | - Beng Yang
- Division of Hepatobiliary and Pancreatic SurgeryDepartment of SurgeryThe First Affiliated HospitalZhejiang University School of MedicineHangzhouZhejiang Province310003China
| | - Shusen Zheng
- Division of Hepatobiliary and Pancreatic SurgeryDepartment of SurgeryThe First Affiliated HospitalZhejiang University School of MedicineHangzhouZhejiang Province310003China
- NHC Key Laboratory of Combined Multi‐organ TransplantationHangzhouZhejiang Province310003China
- Key Laboratory of the Diagnosis and Treatment of Organ TransplantationResearch Unit of Collaborative Diagnosis and Treatment For Hepatobiliary and Pancreatic CancerChinese Academy of Medical Sciences (2019RU019)HangzhouZhejiang Province310003China
- Key Laboratory of Organ TransplantationResearch Center for Diagnosis and Treatment of Hepatobiliary DiseasesHangzhouZhejiang Province310003China
| | - Diyu Chen
- Division of Hepatobiliary and Pancreatic SurgeryDepartment of SurgeryThe First Affiliated HospitalZhejiang University School of MedicineHangzhouZhejiang Province310003China
- Key Laboratory of Organ TransplantationResearch Center for Diagnosis and Treatment of Hepatobiliary DiseasesHangzhouZhejiang Province310003China
| | - Jian Wu
- Division of Hepatobiliary and Pancreatic SurgeryDepartment of SurgeryThe First Affiliated HospitalZhejiang University School of MedicineHangzhouZhejiang Province310003China
- NHC Key Laboratory of Combined Multi‐organ TransplantationHangzhouZhejiang Province310003China
- Key Laboratory of the Diagnosis and Treatment of Organ TransplantationResearch Unit of Collaborative Diagnosis and Treatment For Hepatobiliary and Pancreatic CancerChinese Academy of Medical Sciences (2019RU019)HangzhouZhejiang Province310003China
- Key Laboratory of Organ TransplantationResearch Center for Diagnosis and Treatment of Hepatobiliary DiseasesHangzhouZhejiang Province310003China
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Xu W, Ahmed F, Xiong H. A mitochondria-targeted fluorescent probe based on biocompatible RBH-U for the enhanced response of Fe 3+ in living cells and quenching of Cu 2+ in vitro. Anal Chim Acta 2023; 1249:340925. [PMID: 36868767 DOI: 10.1016/j.aca.2023.340925] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2022] [Revised: 01/30/2023] [Accepted: 01/30/2023] [Indexed: 02/05/2023]
Abstract
A rhodamine hydrazide conjugating uridine moiety (RBH-U) is firstly synthesized by screening different synthetic routes, and then developed as a fluorescence probe for selective detection of Fe3+ ions in an aqueous solution, accompanied by visual color change with naked eyes. Upon the addition of Fe3+ in a 1:1 stoichiometry, a 9-fold enhancement in the fluorescence intensity of the RBH-U was observed with an emission wavelength of 580 nm. In the presence of other metal ions, the "turn-on" fluorescent probe with pH-independent (value 5.0 to 8.0) is remarkably specific for Fe3+ with a detection limit as low as 0.34 μM. Further, the enhanced fluorescence intensity of RBH-U- Fe3+ can be quenched as a switch-off sensor to assist in the recognition of Cu2+ ions. Additionally, the colocalization assay demonstrated that RBH-U containing uridine residue can be used as a novel mitochondria-targeted fluorescent probe with rapid reaction time. Cytotoxicity and cell imaging of RBH-U probe in live NIH-3T3 cells suggest that it can be a potential candidate for clinical diagnosis and Fe3+ tracking toll for the biological system due to its biocompatibility and nontoxicity in NIH-3T3 cells even up to 100 μM.
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Affiliation(s)
- Weiqing Xu
- Institute for Advanced Study, Shenzhen University, Shenzhen, 518060, PR China
| | - Farid Ahmed
- Institute for Advanced Study, Shenzhen University, Shenzhen, 518060, PR China
| | - Hai Xiong
- Institute for Advanced Study, Shenzhen University, Shenzhen, 518060, PR China.
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Wang L, Ma Y, Li S, Lin W. Regulation of the alkyl chain of fluorescent probes to selectively target the cell membrane or mitochondria in living cells. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2023; 290:122280. [PMID: 36586172 DOI: 10.1016/j.saa.2022.122280] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/31/2022] [Revised: 12/19/2022] [Accepted: 12/24/2022] [Indexed: 06/17/2023]
Abstract
The visualization of cell membrane and mitochondrial behavior in living cells is of great life science value, but challenging due to the lack of ideal probes. In this work, two novel fluorescent probes based on different lengths of alkyl chains were reported for selective targeting of cell membranes or mitochondria of living cells. The probe CTM (1-Octadecyl-4-[9-ethyl-6-(diphenylamino)-9H-carbazol-3-yl] pyridinium) achieved cell membrane-specific staining in cells. Moreover, the probe CTM could monitor cell membrane damage through subcellular migration. Once the cell membrane was damaged, the probe CTM migrated into the mitochondria as a signal reporter. In addition, the probe MTM (1-Dodecly-4-[9-ethyl-6-(diphenylamino)-9H-carbazol-3-yl] pyridinium) with the shorter alkyl chain bearing the same skeleton structure penetrated the cell membrane and exhibited high affinity to mitochondria. This work will provide a useful tool to visualize the behavior of cell membranes and mitochondria in living cells.
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Affiliation(s)
- Lin Wang
- Institute of Fluorescent Probes for Biological Imaging, School of Chemistry and Chemical Engineering, School of Materials Science and Engineering, University of Jinan, Jinan, Shandong 250022, PR China
| | - Yanyan Ma
- Shandong Provincial Key Laboratory of Marine Monitoring Instrument Equipment Technology, National Engineering and Technological Research Center of Marine Monitoring Equipment, Institute of Oceanographic Instrumentation, Qilu University of Technology (Shandong Academy of Sciences), Qingdao, Shandong 266061, PR China
| | - Shifei Li
- Institute of Fluorescent Probes for Biological Imaging, School of Chemistry and Chemical Engineering, School of Materials Science and Engineering, University of Jinan, Jinan, Shandong 250022, PR China
| | - Weiying Lin
- Institute of Fluorescent Probes for Biological Imaging, School of Chemistry and Chemical Engineering, School of Materials Science and Engineering, University of Jinan, Jinan, Shandong 250022, PR China; Guangxi Key Laboratory of Electrochemical Energy Materials, Institute of Optical Materials and Chemical Biology, School of Chemistry and Chemical Engineering, Guangxi University, Nanning, Guangxi 530004, PR China.
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Shen WY, Jia CP, Liao LY, Chen LL, Yuan CC, Gu YQ, Liu YH, Liang H, Chen ZF. Copper(II) complex enhanced chemodynamic therapy through GSH depletion and autophagy flow blockade. Dalton Trans 2023; 52:3287-3294. [PMID: 36691961 DOI: 10.1039/d2dt04108a] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
Three copper(II) complexes C1-C3 were synthesized and fully characterized as chemodynamic therapy (CDT) anticancer agents. C1-C3 showed greater cytotoxicity than their ligands toward SK-OV-3 and T24 cells. Particularly, C2 showed high cytotoxicity toward T24 cells and low cytotoxicity toward normal human HL-7702 and WI-38 cells. Mechanistic studies demonstrated that C2 oxidized GSH to GSSG and produced ˙OH, which induced mitochondrial dysfunction and ER stress, finally leading to apoptosis of T24 cells. In addition, C2 inhibited autophagy by blocking autophagy flow, thereby closing the self-protection pathway of oxidative stress to enhance CDT. Importantly, C2 significantly inhibited T24 tumor growth with 57.1% inhibition in a mouse xenograft model. C2 is a promising lead as a potential CDT anticancer agent.
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Affiliation(s)
- Wen-Ying Shen
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources, Collaborative Innovation Center for Guangxi Ethnic Medicine, School of Chemistry and Pharmaceutical Sciences, Guangxi Normal University, Guilin 541004, P. R. China. .,Scientific Research Center, Guilin Medical University, Guilin, 541199, P. R China
| | - Chun-Peng Jia
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources, Collaborative Innovation Center for Guangxi Ethnic Medicine, School of Chemistry and Pharmaceutical Sciences, Guangxi Normal University, Guilin 541004, P. R. China.
| | - Li-Yi Liao
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources, Collaborative Innovation Center for Guangxi Ethnic Medicine, School of Chemistry and Pharmaceutical Sciences, Guangxi Normal University, Guilin 541004, P. R. China.
| | - Liu-Lin Chen
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources, Collaborative Innovation Center for Guangxi Ethnic Medicine, School of Chemistry and Pharmaceutical Sciences, Guangxi Normal University, Guilin 541004, P. R. China.
| | - Cheng-Cheng Yuan
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources, Collaborative Innovation Center for Guangxi Ethnic Medicine, School of Chemistry and Pharmaceutical Sciences, Guangxi Normal University, Guilin 541004, P. R. China.
| | - Yun-Qiong Gu
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources, Collaborative Innovation Center for Guangxi Ethnic Medicine, School of Chemistry and Pharmaceutical Sciences, Guangxi Normal University, Guilin 541004, P. R. China.
| | - Yang-Han Liu
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources, Collaborative Innovation Center for Guangxi Ethnic Medicine, School of Chemistry and Pharmaceutical Sciences, Guangxi Normal University, Guilin 541004, P. R. China.
| | - Hong Liang
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources, Collaborative Innovation Center for Guangxi Ethnic Medicine, School of Chemistry and Pharmaceutical Sciences, Guangxi Normal University, Guilin 541004, P. R. China.
| | - Zhen-Feng Chen
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources, Collaborative Innovation Center for Guangxi Ethnic Medicine, School of Chemistry and Pharmaceutical Sciences, Guangxi Normal University, Guilin 541004, P. R. China.
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Pergolizzi J, Varrassi G, Coleman M, Breve F, Christo DK, Christo PJ, Moussa C. The Sigma Enigma: A Narrative Review of Sigma Receptors. Cureus 2023; 15:e35756. [PMID: 37020478 PMCID: PMC10069457 DOI: 10.7759/cureus.35756] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2022] [Accepted: 03/04/2023] [Indexed: 03/07/2023] Open
Abstract
The sigma-1 and sigma-2 receptors were first discovered in the 1960s and were thought to be a form of opioid receptors initially. Over time, more was gradually learned about these receptors, which are actually protein chaperones, and many of their unique or unusual properties can contribute to a range of important new therapeutic applications. These sigma receptors translocate in the body and regulate calcium homeostasis and mitochondrial bioenergetics and they also have neuroprotective effects. The ligands to which these sigma receptors respond are several and dissimilar, including neurosteroids, neuroleptics, and cocaine. There is controversy as to their endogenous ligands. Sigma receptors are also involved in the complex processes of cholesterol homeostasis and protein folding. While previous work on this topic has been limited, research has been conducted in multiple disease states, such as addiction, aging. Alzheimer's disease, cancer, psychiatric disorders, pain and neuropathic pain, Parkinson's disease, and others. There is currently increasing interest in sigma-1 and sigma-2 receptors as they provide potential therapeutic targets for many disease indications.
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Zhang Y, Jia Q, Nan F, Wang J, Liang K, Li J, Xue X, Ren H, Liu W, Ge J, Wang P. Carbon dots nanophotosensitizers with tunable reactive oxygen species generation for mitochondrion-targeted type I/II photodynamic therapy. Biomaterials 2023; 293:121953. [PMID: 36521428 DOI: 10.1016/j.biomaterials.2022.121953] [Citation(s) in RCA: 28] [Impact Index Per Article: 28.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2022] [Revised: 12/06/2022] [Accepted: 12/08/2022] [Indexed: 12/14/2022]
Abstract
Carbon dots (CDs) have emerged as promising nanomaterials for bioimaging-guided photodynamic therapy (PDT). However, designing red-emissive CDs (RCDs) with tunable type I and type II reactive oxygen species (ROS) generation to simultaneously meet PDT applications in aerobic and hypoxic scenarios still remain major challenges. Herein, three types of RCDs with maximum emission at approximately 680 nm are successfully prepared. It is noteworthy that they exhibit the adjustable ROS production with equal superoxide anion (via type I PDT) and incremental singlet oxygen (via type II PDT). Detailed structural and optical characterizations along with theoretical calculation reveal that the unique type I/II ROS formation mainly depends on the core sizes and surface states of RCDs, which determine their identical redox potentials and tapering energy gaps between singlet- and triplet states, respectively. Additionally, due to the inherent mitochondria targeting capability, RCDs enable themselves to induce cell programmed death via activating mitochondrion-mediated apoptotic pathways. This work exploits the unprecedented RCDs with tunable type I and type II ROS generation that could ensure highly efficient tumor eradication both in vitro and in vivo, even under the harsh tumor microenvironment, providing a new prospect for CDs as nanophotosensitizers to conquer the limitations of single type PDT.
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Affiliation(s)
- Yunxiu Zhang
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials and CityU-CAS Joint Laboratory of Functional Materials and Devices, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing, 100190, People's Republic of China; School of Future Technology, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Qingyan Jia
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials and CityU-CAS Joint Laboratory of Functional Materials and Devices, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing, 100190, People's Republic of China; Frontiers Science Center for Flexible Electronics (FSCFE), Xi'an Institute of Flexible Electronics (IFE) and Xi'an Institute of Biomedical Materials & Engineering (IBME), Northwestern Polytechnical University, 127 West Youyi Road, Xi'an, 710072, China.
| | - Fuchun Nan
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials and CityU-CAS Joint Laboratory of Functional Materials and Devices, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing, 100190, People's Republic of China; School of Future Technology, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Jian Wang
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials and CityU-CAS Joint Laboratory of Functional Materials and Devices, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing, 100190, People's Republic of China; School of Future Technology, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Ke Liang
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials and CityU-CAS Joint Laboratory of Functional Materials and Devices, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing, 100190, People's Republic of China; School of Future Technology, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Jian Li
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials and CityU-CAS Joint Laboratory of Functional Materials and Devices, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing, 100190, People's Republic of China; School of Future Technology, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Xiaokuang Xue
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials and CityU-CAS Joint Laboratory of Functional Materials and Devices, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing, 100190, People's Republic of China; School of Future Technology, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Haohui Ren
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials and CityU-CAS Joint Laboratory of Functional Materials and Devices, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing, 100190, People's Republic of China
| | - Weimin Liu
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials and CityU-CAS Joint Laboratory of Functional Materials and Devices, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing, 100190, People's Republic of China; School of Future Technology, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Jiechao Ge
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials and CityU-CAS Joint Laboratory of Functional Materials and Devices, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing, 100190, People's Republic of China; School of Future Technology, University of Chinese Academy of Sciences, Beijing, 100049, China.
| | - Pengfei Wang
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials and CityU-CAS Joint Laboratory of Functional Materials and Devices, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing, 100190, People's Republic of China; School of Future Technology, University of Chinese Academy of Sciences, Beijing, 100049, China.
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The Imbalance of Astrocytic Mitochondrial Dynamics Following Blast-Induced Traumatic Brain Injury. Biomedicines 2023; 11:biomedicines11020329. [PMID: 36830865 PMCID: PMC9953570 DOI: 10.3390/biomedicines11020329] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2022] [Revised: 01/13/2023] [Accepted: 01/17/2023] [Indexed: 01/27/2023] Open
Abstract
Mild blast-induced traumatic brain injury (bTBI) is a modality of injury that has been of major concern considering a large number of military personnel exposed to explosive blast waves. bTBI results from the propagation of high-pressure static blast forces and their subsequent energy transmission within brain tissue. Exposure to this overpressure energy causes a diffuse injury that leads to acute cell damage and, if chronic, leads to detrimental long-term cognitive deficits. The literature presents a neuro-centric approach to the role of mitochondria dynamics dysfunction in bTBI, and changes in astrocyte-specific mitochondrial dynamics have not been characterized. The balance between fission and fusion events is known as mitochondrial dynamics. As a result of fission and fusion, the mitochondrial structure is constantly altering its shape to respond to physiological stimuli or stress, which in turn affects mitochondrial function. Astrocytic mitochondria are recognized to play an essential role in overall brain metabolism, synaptic transmission, and neuron protection. Mitochondria are vulnerable to injury insults, leading to the increase in mitochondrial fission, a mechanism controlled by the GTPase dynamin-related protein (Drp1) and the phosphorylation of Drp1 at serine 616 (p-Drp1s616). This site is critical to mediate the Drp1 translocation to mitochondria to promote fission events and consequently leads to fragmentation. An increase in mitochondrial fragmentation could have negative consequences, such as promoting an excessive generation of reactive oxygen species or triggering cytochrome c release. The aim of the present study was to characterize the unique pattern of astrocytic mitochondrial dynamics by exploring the role of DRP1 with a combination of in vitro and in vivo bTBI models. Differential remodeling of the astrocytic mitochondrial network was observed, corresponding with increases in p-Drp1S616 four hours and seven days post-injury. Further, results showed a time-dependent reactive astrocyte phenotype transition in the rat hippocampus. This discovery can lead to innovative therapeutics targets to help prevent the secondary injury cascade after blast injury that involves mitochondria dysfunction.
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Walters GC, Usachev YM. Mitochondrial calcium cycling in neuronal function and neurodegeneration. Front Cell Dev Biol 2023; 11:1094356. [PMID: 36760367 PMCID: PMC9902777 DOI: 10.3389/fcell.2023.1094356] [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: 11/10/2022] [Accepted: 01/12/2023] [Indexed: 01/26/2023] Open
Abstract
Mitochondria are essential for proper cellular function through their critical roles in ATP synthesis, reactive oxygen species production, calcium (Ca2+) buffering, and apoptotic signaling. In neurons, Ca2+ buffering is particularly important as it helps to shape Ca2+ signals and to regulate numerous Ca2+-dependent functions including neuronal excitability, synaptic transmission, gene expression, and neuronal toxicity. Over the past decade, identification of the mitochondrial Ca2+ uniporter (MCU) and other molecular components of mitochondrial Ca2+ transport has provided insight into the roles that mitochondrial Ca2+ regulation plays in neuronal function in health and disease. In this review, we discuss the many roles of mitochondrial Ca2+ uptake and release mechanisms in normal neuronal function and highlight new insights into the Ca2+-dependent mechanisms that drive mitochondrial dysfunction in neurologic diseases including epilepsy, Alzheimer's disease, Parkinson's disease, and amyotrophic lateral sclerosis. We also consider how targeting Ca2+ uptake and release mechanisms could facilitate the development of novel therapeutic strategies for neurological diseases.
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Affiliation(s)
- Grant C. Walters
- Department of Neuroscience and Pharmacology, Iowa Neuroscience Institute, University of Iowa, Iowa City, IA, United States
| | - Yuriy M. Usachev
- Department of Neuroscience and Pharmacology, Iowa Neuroscience Institute, University of Iowa, Iowa City, IA, United States
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Kuznetsov AV, Ausserlechner MJ. Research of Mitochondrial Function, Structure, Dynamics and Intracellular Organization. Int J Mol Sci 2023; 24:ijms24010886. [PMID: 36614328 PMCID: PMC9821255 DOI: 10.3390/ijms24010886] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2022] [Accepted: 12/22/2022] [Indexed: 01/06/2023] Open
Abstract
Mitochondria have been recognized as the energy (in the form of ATP)-producing cell organelles, required for cell viability, survival and normal cell function [...].
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Yapca OE, Yildiz GA, Mammadov R, Kurt N, Gundogdu B, Arslan YK, Suleyman H, Cetin N. The effects of metyrosine on ischemia-reperfusion-induced oxidative ovarian injury in rats: Biochemical and histopathological assessment. AN ACAD BRAS CIENC 2023; 95:e20201586. [PMID: 37018835 DOI: 10.1590/0001-3765202320201586] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2020] [Accepted: 12/08/2020] [Indexed: 04/07/2023] Open
Abstract
The aim of this study is to investigate the effect of metyrosine on ischemia-reperfusion (I/R) induced ovarian injury in rats in terms of biochemistry and histopathology. Rats were divided into: ovarian I/R (OIR), ovarian I/R+50 mg/kg metyrosine (OIRM) and sham (SG) operations. OIRM group received 50 mg/kg metyrosine one hour before the application of the anesthetic agent, OIR and SG group rats received equal amount of distilled water to be used as a solvent orally through cannula. Following the application of the anesthetic agent, ovaries of OIRM and OIR group rats were subjected to ischemia and reperfusion, each of which took two hours. This biochemical experiment findings revealed high levels of malondialdehyde (MDA) and cyclo-oxygenase-2 (COX-2) and low levels of total glutathione (tGSH), superoxide dismutase (SOD) and cyclo-oxygenase-1 (COX-1) in the ovarian tissue of OIR group, with significant histopathological injury. In metyrosine group, MDA and COX-2 levels were lower than the OIR group whereas tGSH, SOD and COX-1 levels were higher, with slighter histopathological injury. Our experimental findings indicate that metyrosine inhibits oxidative and pro-inflammatory damage associated with ovarian I/R in rats. These findings suggest that metyrosine could be useful in the treatment of ovarian injury associated with I/R.
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Affiliation(s)
- Omer E Yapca
- Department of Obstetrics and Gynaecology, Faculty of Medicine, Atatürk University, 25240, Erzurum, Turkey
| | - Gulsah A Yildiz
- Department of Obstetrics and Gynaecology, Faculty of Medicine, Atatürk University, 25240, Erzurum, Turkey
| | - Renad Mammadov
- Department of Pharmacology, Faculty of Medicine, Erzincan Binali Yildirim University, 24100, Erzincan, Turkey
| | - Nezahat Kurt
- Department of Biochemistry, Faculty of Medicine, Erzincan Binali Yildirim University, 24100, Erzincan, Turkey
| | - Betul Gundogdu
- Department of Pathology, Faculty of Medicine, Atatürk University, 25240, Erzurum, Turkey
| | - Yusuf K Arslan
- Department of Biostatistics, Faculty of Medicine, Erzincan Binali Yildirim University, 24100, Erzincan, Turkey
| | - Halis Suleyman
- Department of Pharmacology, Faculty of Medicine, Erzincan Binali Yildirim University, 24100, Erzincan, Turkey
| | - Nihal Cetin
- Department of Pharmacology, Faculty of Medicine, Selcuk University, 42131, Konya, Turkey
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Marotta C, Giorgi E, Binacchi F, Cirri D, Gabbiani C, Pratesi A. An overview of recent advancements in anticancer Pt(IV) prodrugs: New smart drug combinations, activation and delivery strategies. Inorganica Chim Acta 2023. [DOI: 10.1016/j.ica.2023.121388] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
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