1
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Jucht AE, Scholz CC. PHD1-3 oxygen sensors in vivo-lessons learned from gene deletions. Pflugers Arch 2024; 476:1307-1337. [PMID: 38509356 PMCID: PMC11310289 DOI: 10.1007/s00424-024-02944-x] [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: 01/27/2024] [Revised: 03/02/2024] [Accepted: 03/07/2024] [Indexed: 03/22/2024]
Abstract
Oxygen sensors enable cells to adapt to limited oxygen availability (hypoxia), affecting various cellular and tissue responses. Prolyl-4-hydroxylase domain 1-3 (PHD1-3; also called Egln1-3, HIF-P4H 1-3, HIF-PH 1-3) proteins belong to the Fe2+- and 2-oxoglutarate-dependent dioxygenase superfamily and utilise molecular oxygen (O2) alongside 2-oxoglutarate as co-substrate to hydroxylate two proline residues of α subunits of the dimeric hypoxia inducible factor (HIF) transcription factor. PHD1-3-mediated hydroxylation of HIF-α leads to its degradation and inactivation. Recently, various PHD inhibitors (PHI) have entered the clinics for treatment of renal anaemia. Pre-clinical analyses indicate that PHI treatment may also be beneficial in numerous other hypoxia-associated diseases. Nonetheless, the underlying molecular mechanisms of the observed protective effects of PHIs are only partly understood, currently hindering their translation into the clinics. Moreover, the PHI-mediated increase of Epo levels is not beneficial in all hypoxia-associated diseases and PHD-selective inhibition may be advantageous. Here, we summarise the current knowledge about the relevance and function of each of the three PHD isoforms in vivo, based on the deletion or RNA interference-mediated knockdown of each single corresponding gene in rodents. This information is crucial for our understanding of the physiological relevance and function of the PHDs as well as for elucidating their individual impact on hypoxia-associated diseases. Furthermore, this knowledge highlights which diseases may best be targeted by PHD isoform-selective inhibitors in case such pharmacologic substances become available.
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Affiliation(s)
- Agnieszka E Jucht
- Institute of Physiology, University of Zurich, Zurich, 8057, Switzerland
| | - Carsten C Scholz
- Institute of Physiology, University Medicine Greifswald, Friedrich-Ludwig-Jahn-Str. 15a, 17475, Greifswald, Germany.
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2
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Qi K, Li J, Hu Y, Qiao Y, Mu Y. Research progress in mechanism of anticancer action of shikonin targeting reactive oxygen species. Front Pharmacol 2024; 15:1416781. [PMID: 39076592 PMCID: PMC11284502 DOI: 10.3389/fphar.2024.1416781] [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: 04/13/2024] [Accepted: 06/13/2024] [Indexed: 07/31/2024] Open
Abstract
Excessive buildup of highly reactive molecules can occur due to the generation and dysregulation of reactive oxygen species (ROS) and their associated signaling pathways. ROS have a dual function in cancer development, either leading to DNA mutations that promote the growth and dissemination of cancer cells, or triggering the death of cancer cells. Cancer cells strategically balance their fate by modulating ROS levels, activating pro-cancer signaling pathways, and suppressing antioxidant defenses. Consequently, targeting ROS has emerged as a promising strategy in cancer therapy. Shikonin and its derivatives, along with related drug carriers, can impact several signaling pathways by targeting components involved with oxidative stress to induce processes such as apoptosis, necroptosis, cell cycle arrest, autophagy, as well as modulation of ferroptosis. Moreover, they can increase the responsiveness of drug-resistant cells to chemotherapy drugs, based on the specific characteristics of ROS, as well as the kind and stage of cancer. This research explores the pro-cancer and anti-cancer impacts of ROS, summarize the mechanisms and research achievements of shikonin-targeted ROS in anti-cancer effects and provide suggestions for designing further anti-tumor experiments and undertaking further experimental and practical research.
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Affiliation(s)
- Ke Qi
- Department of Diagnostic Clinical Laboratory Science, Inner Mongolia Medical University, Hohhot, Inner Mongolia, China
| | - Jiayi Li
- Department of Clinical Test Center, Medical Laboratory, Peking University Cancer Hospital (Inner Mongolia Campus), Affiliated Cancer Hospital of Inner Mongolia Medical University, Hohhot, Inner Mongolia, China
| | - Yang Hu
- Department of Diagnostic Clinical Laboratory Science, Inner Mongolia Medical University, Hohhot, Inner Mongolia, China
| | - Yiyun Qiao
- Department of Clinical Test Center, Peking University Cancer Hospital (Inner Mongolia Campus), Affiliated Cancer Hospital of Inner Mongolia Medical University, Hohhot, Inner Mongolia, China
| | - Yongping Mu
- Department of Clinical Test Center, Peking University Cancer Hospital (Inner Mongolia Campus), Affiliated Cancer Hospital of Inner Mongolia Medical University, Hohhot, Inner Mongolia, China
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3
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Stegen S, Carmeliet G. Metabolic regulation of skeletal cell fate and function. Nat Rev Endocrinol 2024; 20:399-413. [PMID: 38499689 DOI: 10.1038/s41574-024-00969-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 02/23/2024] [Indexed: 03/20/2024]
Abstract
Bone development and bone remodelling during adult life are highly anabolic processes requiring an adequate supply of oxygen and nutrients. Bone-forming osteoblasts and bone-resorbing osteoclasts interact closely to preserve bone mass and architecture and are often located close to blood vessels. Chondrocytes within the developing growth plate ensure that bone lengthening occurs before puberty, but these cells function in an avascular environment. With ageing, numerous bone marrow adipocytes appear, often with negative effects on bone properties. Many studies have now indicated that skeletal cells have specific metabolic profiles that correspond to the nutritional microenvironment and their stage-specific functions. These metabolic networks provide not only skeletal cells with sufficient energy, but also biosynthetic intermediates that are necessary for proliferation and extracellular matrix synthesis. Moreover, these metabolic pathways control redox homeostasis to avoid oxidative stress and safeguard cell survival. Finally, several intracellular metabolites regulate the activity of epigenetic enzymes and thus control the fate and function of skeletal cells. The metabolic profile of skeletal cells therefore not only reflects their cellular state, but can also drive cellular activity. Insight into skeletal cell metabolism will thus not only advance our understanding of skeletal development and homeostasis, but also of skeletal disorders, such as osteoarthritis, diabetic bone disease and bone malignancies.
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Affiliation(s)
- Steve Stegen
- Laboratory of Clinical and Experimental Endocrinology, Department of Chronic Diseases and Metabolism, KU Leuven, Leuven, Belgium
| | - Geert Carmeliet
- Laboratory of Clinical and Experimental Endocrinology, Department of Chronic Diseases and Metabolism, KU Leuven, Leuven, Belgium.
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4
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Li S, Zhao C, Shang G, Xie JL, Cui L, Zhang Q, Huang J. α-ketoglutarate preconditioning extends the survival of engrafted adipose-derived mesenchymal stem cells to accelerate healing of burn wounds. Exp Cell Res 2024; 439:114095. [PMID: 38759745 DOI: 10.1016/j.yexcr.2024.114095] [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: 03/30/2024] [Revised: 05/09/2024] [Accepted: 05/13/2024] [Indexed: 05/19/2024]
Abstract
The application of adipose-derived stem cells (ADSCs) in treating hard-to-heal wounds has been widely accepted, while the short-term survival rate remains an obstacle in stem cell therapy. The aim of this study is to investigate the effect of preconditioning ADSCs with α-ketoglutarate (α-KG) on the healing of acid burn wounds and cell survival within wounds. Preconditioning of ADSCs was performed by treating cells at passage 3 with 3.5 mM DM-αKG for 24 h. Proliferation and migration of ADSCs was examined. An acid burn wound was created on the dorsal skin of mice. Cell suspension of ADSCs (2 × 106 cells/ml), either pre-treated with α-KG or not, was injected subcutaneously around the margin of wound. At 1,4,7,10,14 days after injection, the percentage of wound closure was evaluated. Expression of pro-angiogenic factors, matrix molecules and HIF1-α in pretreated ADSCs or in wounds was evaluated by qRT-PCR and immunohistochemistry staining, respectively. The survival rate of DiO-labelled ADSCs was determined with the in vivo bioluminescent imaging system. Treating with α-KG induced an enhancement in migration of ADSCs, while their proliferation was not affected. Expression of Vegf and Fgf-2 was significantly increased. With injection of pretreated ADSCs, healing of wounds was remarkably accelerated, along with increased ECM deposition and microvessel density. Moreover, pretreatment with α-KG resulted a prolonged survival of engrafted ADSCs was observed. Expression of HIF-1α was significantly increased in ADSCs treated with α-KG and in wounds injected with preconditioned ADSCs. Our results revealed that healing of acid burn wound was accelerated with administration of ADSCs pretreated with α-KG, which induced elevated expression of HIF-1α and prolonged survival of engrafted stem cells.
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Affiliation(s)
- Shuaijun Li
- Department of Reconstructive and Regenerative Surgery, Shanghai Tongji Hospital Tongji University School of Medicine, Shanghai, China; Department of Stem Cells and Regenerative Medicine, Tongji University School of Medicine, Shanghai, China
| | - Cheng Zhao
- Department of Reconstructive and Regenerative Surgery, Shanghai Tongji Hospital Tongji University School of Medicine, Shanghai, China; Department of Stem Cells and Regenerative Medicine, Tongji University School of Medicine, Shanghai, China
| | - Guoying Shang
- Department of Reconstructive and Regenerative Surgery, Shanghai Tongji Hospital Tongji University School of Medicine, Shanghai, China
| | - Jun-Ling Xie
- Research Center for Translational Medicine at East Hospital, School of Medicine, Tongji University, Shanghai 200010, China
| | - Lei Cui
- Department of Reconstructive and Regenerative Surgery, Shanghai Tongji Hospital Tongji University School of Medicine, Shanghai, China; Department of Stem Cells and Regenerative Medicine, Tongji University School of Medicine, Shanghai, China.
| | - Qun Zhang
- Department of Plastic and Reconstructive Surgery, Shanghai 9th People's Hospital, School of Medicine, Shanghai Jiaotong University, Shanghai 200011, China.
| | - Jiefeng Huang
- Department of Plastic Surgery, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai, China.
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5
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Endesfelder S, Schmitz T, Bührer C. Bilirubin Exerts Protective Effects on Alveolar Type II Pneumocytes in an In Vitro Model of Oxidative Stress. Int J Mol Sci 2024; 25:5323. [PMID: 38791361 PMCID: PMC11121655 DOI: 10.3390/ijms25105323] [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: 04/04/2024] [Revised: 05/07/2024] [Accepted: 05/09/2024] [Indexed: 05/26/2024] Open
Abstract
Newborn infants face a rapid surge of oxygen and a more protracted rise of unconjugated bilirubin after birth. Bilirubin has a strong antioxidant capacity by scavenging free radicals, but it also exerts direct toxicity. This study investigates whether cultured rat alveolar epithelial cells type II (AEC II) react differently to bilirubin under different oxygen concentrations. The toxic threshold concentration of bilirubin was narrowed down by means of a cell viability test. Subsequent analyses of bilirubin effects under 5% oxygen and 80% oxygen compared to 21% oxygen, as well as pretreatment with bilirubin after 4 h and 24 h of incubation, were performed to determine the induction of apoptosis and the gene expression of associated transcripts of cell death, proliferation, and redox-sensitive transcription factors. Oxidative stress led to an increased rate of cell death and induced transcripts of redox-sensitive signaling pathways. At a non-cytotoxic concentration of 400 nm, bilirubin attenuated oxidative stress-induced responses and possibly mediated cellular antioxidant defense by influencing Nrf2/Hif1α- and NFκB-mediated signaling pathways. In conclusion, the study demonstrates that rat AEC II cells are protected from oxidative stress-induced impairment by low-dose bilirubin.
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Affiliation(s)
- Stefanie Endesfelder
- Department of Neonatology, Charité—Universitätsmedizin Berlin, 13353 Berlin, Germany; (T.S.); (C.B.)
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Zhou M, An YZ, Guo Q, Zhou HY, Luo XH. Energy homeostasis in the bone. Trends Endocrinol Metab 2024; 35:439-451. [PMID: 38242815 DOI: 10.1016/j.tem.2023.12.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/01/2023] [Revised: 12/19/2023] [Accepted: 12/21/2023] [Indexed: 01/21/2024]
Abstract
The bone serves as an energy reservoir and actively engages in whole-body energy metabolism. Numerous studies have determined fuel requirements and bioenergetic properties of bone under physiological conditions as well as the dysregulation of energy metabolism associated with bone metabolic diseases. Here, we review the main sources of energy in bone cells and their regulation, as well as the endocrine role of the bone in systemic energy homeostasis. Moreover, we discuss metabolic changes that occur as a result of osteoporosis. Exploration in this area will contribute to an enhanced comprehension of bone energy metabolism, presenting novel possibilities to address metabolic diseases.
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Affiliation(s)
- Min Zhou
- Department of Endocrinology, Endocrinology Research Center, Xiangya Hospital of Central South University, Changsha, Hunan 410008, PR China; National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Changsha, Hunan 410008, PR China; Key Laboratory of Aging-Related Bone and Joint Diseases Prevention and Treatment, Ministry of Education, Xiangya Hospital, Central South University, Changsha, PR China; Key Laboratory of Organ Injury, Aging and Regenerative Medicine of Hunan Province, Hunan 410008, PR China
| | - Yu-Ze An
- Department of Endocrinology, Endocrinology Research Center, Xiangya Hospital of Central South University, Changsha, Hunan 410008, PR China; National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Changsha, Hunan 410008, PR China; Key Laboratory of Aging-Related Bone and Joint Diseases Prevention and Treatment, Ministry of Education, Xiangya Hospital, Central South University, Changsha, PR China; Key Laboratory of Organ Injury, Aging and Regenerative Medicine of Hunan Province, Hunan 410008, PR China
| | - Qi Guo
- Department of Endocrinology, Endocrinology Research Center, Xiangya Hospital of Central South University, Changsha, Hunan 410008, PR China; National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Changsha, Hunan 410008, PR China; Key Laboratory of Aging-Related Bone and Joint Diseases Prevention and Treatment, Ministry of Education, Xiangya Hospital, Central South University, Changsha, PR China; Key Laboratory of Organ Injury, Aging and Regenerative Medicine of Hunan Province, Hunan 410008, PR China
| | - Hai-Yan Zhou
- Department of Endocrinology, Endocrinology Research Center, Xiangya Hospital of Central South University, Changsha, Hunan 410008, PR China; National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Changsha, Hunan 410008, PR China; Key Laboratory of Aging-Related Bone and Joint Diseases Prevention and Treatment, Ministry of Education, Xiangya Hospital, Central South University, Changsha, PR China; Key Laboratory of Organ Injury, Aging and Regenerative Medicine of Hunan Province, Hunan 410008, PR China.
| | - Xiang-Hang Luo
- Department of Endocrinology, Endocrinology Research Center, Xiangya Hospital of Central South University, Changsha, Hunan 410008, PR China; National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Changsha, Hunan 410008, PR China; Key Laboratory of Aging-Related Bone and Joint Diseases Prevention and Treatment, Ministry of Education, Xiangya Hospital, Central South University, Changsha, PR China; Key Laboratory of Organ Injury, Aging and Regenerative Medicine of Hunan Province, Hunan 410008, PR China.
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7
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Sun L, Niu H, Wu Y, Dong S, Li X, Kim BY, Liu C, Ma Y, Jiang W, Yuan Y. Bio-integrated scaffold facilitates large bone regeneration dominated by endochondral ossification. Bioact Mater 2024; 35:208-227. [PMID: 38327823 PMCID: PMC10847751 DOI: 10.1016/j.bioactmat.2024.01.019] [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: 09/28/2023] [Revised: 12/23/2023] [Accepted: 01/18/2024] [Indexed: 02/09/2024] Open
Abstract
Repair of large bone defects caused by severe trauma, non-union fractures, or tumor resection remains challenging because of limited regenerative ability. Typically, these defects heal through mixed routines, including intramembranous ossification (IMO) and endochondral ossification (ECO), with ECO considered more efficient. Current strategies to promote large bone healing via ECO are unstable and require high-dose growth factors or complex cell therapy that cause side effects and raise expense while providing only limited benefit. Herein, we report a bio-integrated scaffold capable of initiating an early hypoxia microenvironment with controllable release of low-dose recombinant bone morphogenetic protein-2 (rhBMP-2), aiming to induce ECO-dominated repair. Specifically, we apply a mesoporous structure to accelerate iron chelation, this promoting early chondrogenesis via deferoxamine (DFO)-induced hypoxia-inducible factor-1α (HIF-1α). Through the delicate segmentation of click-crosslinked PEGylated Poly (glycerol sebacate) (PEGS) layers, we achieve programmed release of low-dose rhBMP-2, which can facilitate cartilage-to-bone transformation while reducing side effect risks. We demonstrate this system can strengthen the ECO healing and convert mixed or mixed or IMO-guided routes to ECO-dominated approach in large-size models with clinical relevance. Collectively, these findings demonstrate a biomaterial-based strategy for driving ECO-dominated healing, paving a promising pave towards its clinical use in addressing large bone defects.
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Affiliation(s)
- Lili Sun
- Key Laboratory for Ultrafine Materials of Ministry of Education, School of Materials Science and Engineering, East China University of Science and Technology, Shanghai, 200237, PR China
- Engineering Research Center for Biomedical Materials of Ministry of Education, East China University of Science and Technology, Shanghai, 200237, PR China
| | - Haoyi Niu
- Key Laboratory for Ultrafine Materials of Ministry of Education, School of Materials Science and Engineering, East China University of Science and Technology, Shanghai, 200237, PR China
- Engineering Research Center for Biomedical Materials of Ministry of Education, East China University of Science and Technology, Shanghai, 200237, PR China
- Department of Neurosurgery, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Yuqiong Wu
- Department of Prosthodontics, Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200011, PR China
| | - Shiyan Dong
- Department of Radiation Oncology, MD Anderson Cancer Center, Houston, TX, USA
| | - Xuefeng Li
- Department of Radiation Oncology, MD Anderson Cancer Center, Houston, TX, USA
| | - Betty Y.S. Kim
- Department of Neurosurgery, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Changsheng Liu
- Key Laboratory for Ultrafine Materials of Ministry of Education, School of Materials Science and Engineering, East China University of Science and Technology, Shanghai, 200237, PR China
- Engineering Research Center for Biomedical Materials of Ministry of Education, East China University of Science and Technology, Shanghai, 200237, PR China
| | - Yifan Ma
- Key Laboratory for Ultrafine Materials of Ministry of Education, School of Materials Science and Engineering, East China University of Science and Technology, Shanghai, 200237, PR China
- Department of Radiation Oncology, MD Anderson Cancer Center, Houston, TX, USA
| | - Wen Jiang
- Department of Radiation Oncology, MD Anderson Cancer Center, Houston, TX, USA
| | - Yuan Yuan
- Key Laboratory for Ultrafine Materials of Ministry of Education, School of Materials Science and Engineering, East China University of Science and Technology, Shanghai, 200237, PR China
- Engineering Research Center for Biomedical Materials of Ministry of Education, East China University of Science and Technology, Shanghai, 200237, PR China
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8
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Gong H, Zhao N, Zhu C, Luo L, Liu S. Treatment of gastric ulcer, traditional Chinese medicine may be a better choice. JOURNAL OF ETHNOPHARMACOLOGY 2024; 324:117793. [PMID: 38278376 DOI: 10.1016/j.jep.2024.117793] [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: 11/03/2023] [Revised: 12/30/2023] [Accepted: 01/18/2024] [Indexed: 01/28/2024]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Gastric ulcer (GU) is the injury of the gastric mucosa caused by the stimulation of various pathogenic factors penetrating the deep mucosal muscle layer. An increasing number of studies have shown that traditional Chinese medicine (TCM) is highly effective in treating GU due to its multitarget, multilevel, and multi-pathway effects. AIM OF THE STUDY To review the latest research progress in the treatment of GU by TCM, including clinical and experimental studies, focusing on the target and mechanism of action of drugs and providing a theoretical basis for the treatment of GU by natural herbs. MATERIALS AND METHODS Electronic databases (PubMed, Elsevier, Springer, Web of Science, and CNKI) were searched using the keywords "gastric ulcer", "gastric mucosal lesion", "TCM" and or paired with "peptic ulcer" and "natural drugs" for studies published in the last fifteen years until 2023. RESULTS TCM, including single components of natural products, Chinese patent medicines (CPM), and TCM decoction, is expected to treat GU by regulating various mechanisms, such as redox balance, inflammatory factors, angiogenesis, gastric mucosal protective factors, intestinal flora, apoptosis, and autophagy. CONCLUSIONS We discussed and summarized the mechanism of TCM in the treatment of GU, which provided a sufficient basis for TCM treatment of GU.
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Affiliation(s)
- Haiying Gong
- School of Traditional Chinese Medicine, Capital Medical University, Beijing, China; Department of Gastroenterology, Jiangsu Province Hospital of Chinese Medicine, Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing, China
| | - Ning Zhao
- Wuxi School of Medicine, Jiangnan University, Wuxi, China
| | - Conglei Zhu
- Department of Pharmacy, Fuyang People's Hospital, Fuyang, Anhui, China
| | - Lin Luo
- School of Basic Medical Sciences, Beijing Key Laboratory of Neural Regeneration and Repair, Advanced Innovation Center for Human Brain Protection, Capital Medical University, Beijing, China
| | - Sen Liu
- School of Basic Medical Sciences, Beijing Key Laboratory of Neural Regeneration and Repair, Advanced Innovation Center for Human Brain Protection, Capital Medical University, Beijing, China.
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Li L, Liu Y, Zhi N, Ji Y, Xu J, Mao G, Wang Y, Ma J, Wang Y. Hypoxic preconditioning accelerates the healing of ischemic intestinal injury by activating HIF-1α/PPARα pathway-mediated fatty acid oxidation. Cell Death Discov 2024; 10:164. [PMID: 38575595 PMCID: PMC10994932 DOI: 10.1038/s41420-024-01937-0] [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: 10/29/2023] [Revised: 03/25/2024] [Accepted: 03/26/2024] [Indexed: 04/06/2024] Open
Abstract
Hypoxic preconditioning (HPC) has been shown to improve organ tolerance to subsequent severe hypoxia or ischemia. However, its impact on intestinal ischemic injury has not been well studied. In this study, we evaluated the effects of HPC on intestinal ischemia in rats. Intestinal rehabilitation, levels of fatty acid oxidation (FAO) by-products, intestinal stem cells (ISCs), levels of hypoxia-inducible factor 1 subunit α (HIF-1α) and its downstream genes such as peroxisome proliferator-activated receptor α (PPARα), and carnitine palmitoyltransferase 1a (CPT1A) were assessed at distinct time intervals following intestinal ischemia with or without the interference of HIF-1α. Our data showed that HPC facilitates the restoration of the intestinal structure and enhances the FAO, by boosting intestinal stem cells. Additionally, HIF-1α, PPARα, and CPT1A mRNA and their protein levels were generally up-regulated in the small intestine of HPC rats as compared to the control group. Our vitro experiment also shows low-oxygen induces highly levels of HIF-1α and its downstream genes, with a concurrent increase in FAO products in IEC-6 cells. Furthermore, the above phenomenon could be reversed by silencing HIF-1α. In conclusion, we hypothesize that HPC can stimulate the activation of intestinal stem cells via HIF-1α/PPARα pathway-mediated FAO, thereby accelerating the healing process post ischemic intestinal injury.
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Affiliation(s)
- Linxia Li
- Department of Aerospace Medicine, Air Force Medical University, 710032, Xi'an, China
| | - Yanqi Liu
- Department of Aerospace Medicine, Air Force Medical University, 710032, Xi'an, China
| | - Na Zhi
- Department of Aerospace Medicine, Air Force Medical University, 710032, Xi'an, China
| | - Yaoxuan Ji
- Department of Aerospace Medicine, Air Force Medical University, 710032, Xi'an, China
| | - Jialing Xu
- Department of Aerospace Medicine, Air Force Medical University, 710032, Xi'an, China
| | - Guoyun Mao
- Department of Aerospace Medicine, Air Force Medical University, 710032, Xi'an, China
| | - Yazhou Wang
- Department of Neurobiology and Institute of Neurosciences, Air Force Medical University, 710032, Xi'an, China
| | - Jin Ma
- Department of Aerospace Medicine, Air Force Medical University, 710032, Xi'an, China.
| | - Yunying Wang
- Department of Aerospace Medicine, Air Force Medical University, 710032, Xi'an, China.
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10
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Liu F, Xiao J, Chen LH, Pan YY, Tian JZ, Zhang ZR, Bai XC. Self-assembly of differentiated dental pulp stem cells facilitates spheroid human dental organoid formation and prevascularization. World J Stem Cells 2024; 16:287-304. [PMID: 38577232 PMCID: PMC10989288 DOI: 10.4252/wjsc.v16.i3.287] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/19/2023] [Revised: 01/21/2024] [Accepted: 02/28/2024] [Indexed: 03/25/2024] Open
Abstract
BACKGROUND The self-assembly of solid organs from stem cells has the potential to greatly expand the applicability of regenerative medicine. Stem cells can self-organise into microsized organ units, partially modelling tissue function and regeneration. Dental pulp organoids have been used to recapitulate the processes of tooth development and related diseases. However, the lack of vasculature limits the utility of dental pulp organoids. AIM To improve survival and aid in recovery after stem cell transplantation, we demonstrated the three-dimensional (3D) self-assembly of adult stem cell-human dental pulp stem cells (hDPSCs) and endothelial cells (ECs) into a novel type of spheroid-shaped dental pulp organoid in vitro under hypoxia and conditioned medium (CM). METHODS During culture, primary hDPSCs were induced to differentiate into ECs by exposing them to a hypoxic environment and CM. The hypoxic pretreated hDPSCs were then mixed with ECs at specific ratios and conditioned in a 3D environment to produce prevascularized dental pulp organoids. The biological characteristics of the organoids were analysed, and the regulatory pathways associated with angiogenesis were studied. RESULTS The combination of these two agents resulted in prevascularized human dental pulp organoids (Vorganoids) that more closely resembled dental pulp tissue in terms of morphology and function. Single-cell RNA sequencing of dental pulp tissue and RNA sequencing of Vorganoids were integrated to analyse key regulatory pathways associated with angiogenesis. The biomarkers forkhead box protein O1 and fibroblast growth factor 2 were identified to be involved in the regulation of Vorganoids. CONCLUSION In this innovative study, we effectively established an in vitro model of Vorganoids and used it to elucidate new mechanisms of angiogenesis during regeneration, facilitating the development of clinical treatment strategies.
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Affiliation(s)
- Fei Liu
- School of Basic Medical Sciences, Southern Medical University, Guangzhou 510515, Guangdong Province, China
- Department of Health Management, Guangdong Second Provincial General Hospital, Guangzhou 510317, Guangdong Province, China
| | - Jing Xiao
- Guangdong Provincial Key Laboratory of Tumor Interventional Diagnosis and Treatment, Zhuhai People's Hospital Affiliated with Jinan University, Zhuhai 519000, Guangdong Province, China
- Centre of Reproduction, Development and Aging, Faculty of Health Sciences, University of Macau, Macau 999078, China
| | - Lei-Hui Chen
- Department of Stomatology, Guangdong Second Provincial General Hospital, Guangzhou 510317, Guangdong Province, China
| | - Yu-Yue Pan
- Department of Stomatology, Guangdong Second Provincial General Hospital, Guangzhou 510317, Guangdong Province, China
| | - Jun-Zhang Tian
- Department of Health Management, Guangdong Second Provincial General Hospital, Guangzhou 510317, Guangdong Province, China
| | - Zhi-Ren Zhang
- Zhuhai Institute of Translational Medicine, Zhuhai Hospital Affiliated with Jinan University, Zhuhai 519000, Guangdong Province, China
| | - Xiao-Chun Bai
- Department of Cell Biology, School of Basic Medical Sciences, Southern Medical University, Guangzhou 510515, Guangdong Province, China.
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11
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Loopmans S, Tournaire G, Stockmans I, Stegen S, Carmeliet G. Hypoxia rewires glucose and glutamine metabolism in different sources of skeletal stem and progenitor cells similarly, except for pyruvate. J Bone Miner Res 2024; 39:150-160. [PMID: 38477776 DOI: 10.1093/jbmr/zjad016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/26/2023] [Revised: 11/23/2023] [Accepted: 12/07/2023] [Indexed: 03/14/2024]
Abstract
Skeletal stem and progenitor cells (SSPCs) are crucial for bone development, homeostasis, and repair. SSPCs are considered to reside in a rather hypoxic niche in the bone, but distinct SSPC niches have been described in different skeletal regions, and they likely differ in oxygen and nutrient availability. Currently it remains unknown whether the different SSPC sources have a comparable metabolic profile and respond in a similar manner to hypoxia. In this study, we show that cell proliferation of all SSPCs was increased in hypoxia, suggesting that SSPCs can indeed function in a hypoxic niche in vivo. In addition, low oxygen tension increased glucose consumption and lactate production, but affected pyruvate metabolism cell-specifically. Hypoxia decreased tricarboxylic acid (TCA) cycle anaplerosis and altered glucose entry into the TCA cycle from pyruvate dehydrogenase to pyruvate carboxylase and/or malic enzyme. Finally, a switch from glutamine oxidation to reductive carboxylation was observed in hypoxia, as well as cell-specific adaptations in the metabolism of other amino acids. Collectively, our findings show that SSPCs from different skeletal locations proliferate adequately in hypoxia by rewiring glucose and amino acid metabolism in a cell-specific manner.
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Affiliation(s)
- Shauni Loopmans
- Laboratory of Clinical and Experimental Endocrinology, Department of Chronic Diseases and Metabolism, KU Leuven, Leuven 3000, Belgium
| | - Guillaume Tournaire
- Laboratory of Clinical and Experimental Endocrinology, Department of Chronic Diseases and Metabolism, KU Leuven, Leuven 3000, Belgium
| | - Ingrid Stockmans
- Laboratory of Clinical and Experimental Endocrinology, Department of Chronic Diseases and Metabolism, KU Leuven, Leuven 3000, Belgium
| | - Steve Stegen
- Laboratory of Clinical and Experimental Endocrinology, Department of Chronic Diseases and Metabolism, KU Leuven, Leuven 3000, Belgium
| | - Geert Carmeliet
- Laboratory of Clinical and Experimental Endocrinology, Department of Chronic Diseases and Metabolism, KU Leuven, Leuven 3000, Belgium
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12
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Xu L, Cao Y, Xu Y, Li R, Xu X. Redox-Responsive Polymeric Nanoparticle for Nucleic Acid Delivery and Cancer Therapy: Progress, Opportunities, and Challenges. Macromol Biosci 2024; 24:e2300238. [PMID: 37573033 DOI: 10.1002/mabi.202300238] [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: 05/25/2023] [Revised: 07/25/2023] [Indexed: 08/14/2023]
Abstract
Cancer development and progression of cancer are closely associated with the activation of oncogenes and loss of tumor suppressor genes. Nucleic acid drugs (e.g., siRNA, mRNA, and DNA) are widely used for cancer therapy due to their specific ability to regulate the expression of any cancer-associated genes. However, nucleic acid drugs are negatively charged biomacromolecules that are susceptible to serum nucleases and cannot cross cell membrane. Therefore, specific delivery tools are required to facilitate the intracellular delivery of nucleic acid drugs. In the past few decades, a variety of nanoparticles (NPs) are designed and developed for nucleic acid delivery and cancer therapy. In particular, the polymeric NPs in response to the abnormal redox status in cancer cells have garnered much more attention as their potential in redox-triggered nanostructure dissociation and rapid intracellular release of nucleic acid drugs. In this review, the important genes or signaling pathways regulating the abnormal redox status in cancer cells are briefly introduced and the recent development of redox-responsive NPs for nucleic acid delivery and cancer therapy is systemically summarized. The future development of NPs-mediated nucleic acid delivery and their challenges in clinical translation are also discussed.
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Affiliation(s)
- Lei Xu
- Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Guangdong-Hong Kong Joint Laboratory for RNA Medicine, Medical Research Center, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, 510120, P. R. China
- Guangzhou Key Laboratory of Medical Nanomaterials, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, 510120, P. R. China
- Nanhai Translational Innovation Center of Precision Immunology, Sun Yat-Sen Memorial Hospital, Foshan, 528200, P. R. China
| | - Yuan Cao
- Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Guangdong-Hong Kong Joint Laboratory for RNA Medicine, Medical Research Center, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, 510120, P. R. China
- Guangzhou Key Laboratory of Medical Nanomaterials, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, 510120, P. R. China
- Nanhai Translational Innovation Center of Precision Immunology, Sun Yat-Sen Memorial Hospital, Foshan, 528200, P. R. China
| | - Ya Xu
- Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Guangdong-Hong Kong Joint Laboratory for RNA Medicine, Medical Research Center, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, 510120, P. R. China
- Guangzhou Key Laboratory of Medical Nanomaterials, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, 510120, P. R. China
- Nanhai Translational Innovation Center of Precision Immunology, Sun Yat-Sen Memorial Hospital, Foshan, 528200, P. R. China
| | - Rong Li
- The Second Affiliated Hospital, Hengyang Medical School, University of South China, Hengyang, 421001, P. R. China
| | - Xiaoding Xu
- Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Guangdong-Hong Kong Joint Laboratory for RNA Medicine, Medical Research Center, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, 510120, P. R. China
- Guangzhou Key Laboratory of Medical Nanomaterials, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, 510120, P. R. China
- Nanhai Translational Innovation Center of Precision Immunology, Sun Yat-Sen Memorial Hospital, Foshan, 528200, P. R. China
- The Second Affiliated Hospital, Hengyang Medical School, University of South China, Hengyang, 421001, P. R. China
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13
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Cheng B, Fu X. The Role of Stem Cell on Wound Healing After Revascularization-Healing Following Revascularization-Unlocking Skin Potential. INT J LOW EXTR WOUND 2024; 23:63-69. [PMID: 37899578 DOI: 10.1177/15347346231210709] [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] [Indexed: 10/31/2023]
Abstract
Wound healing is a complex and dynamic process involving a series of cellular and molecular events. Revascularization, the restoration of blood flow to ischemic or damaged tissue, is a key step in wound healing. Adequate vascularization has been recognized as a necessary factor for successful tissue regeneration. In the later stage of revascularization and tissue remodeling in wound healing, stem cells regulate other repair cells and matrix formation by influencing the maturation of blood vessels. The reductive oxidation (REDOX) state may be a key mechanism through stem/progenitor cells to influence endothelial cells to mature blood vessels and improve the quality of healing. Mitochondria may play an important role in this process.
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Affiliation(s)
- Biao Cheng
- Department of Burns and Plastic Surgery, General Hospital of Southern Theater Command of PLA, Guangzhou, China
| | - Xiaobing Fu
- Research Center for Tissue Repair and Regeneration Affiliated to the Medical Innovation Research Department, PLA General Hospital and PLA Medical College; Beijing Key Research Laboratory of Skin Injury, Repair and Regeneration; Research Unit of Trauma Care, Tissue Repair and Regeneration, Chinese Academy of Medical Sciences, Beijing, P. R. China
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14
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Guo Z, Wang N, He X, Shen J, Yang X, Xie C, Fan Q, Zhou W. Self-amplified activatable nanophotosensitizers for HIF-1α inhibition-enhanced photodynamic therapy. NANOSCALE 2024; 16:4239-4248. [PMID: 38348473 DOI: 10.1039/d3nr05245a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/23/2024]
Abstract
Activatable photodynamic therapy (PDT) has shown great potential in cancer therapy owing to its high tumor specificity and minimized side effect. However, the relatively low level of biomarkers within tumor tissue rescricts the photosensitizer to get thoroughly activated. In this study, we design a self-amplified activatable nanophotosensitizer (CPPa NP) for enhanced PDT. CPPa NP is prepared by encapsulating a hypoxia-inducible factor 1α (HIF-1α) inhibitor CI-994 with an amphiphilic hydrogen peroxide (H2O2) responsive copolymer PPa-CA-PEG. Upon the addition of H2O2, the thioketal linker within CPPa NP is cleaved, resulting in the simultaneous release of thiol-modified pyropheophorbide a (PPa-SH), cinnamic aldehyde (CA), and CI-994. PPa-SH can be encapsulated by albumin to turn on its photodynamic efficiency, while CI-994 may inhibit the expression of HIF-1α to improve the PDT efficacy. CA is able to deplete glutathione (GSH) and upregulate reactive oxygen species (ROS) within tumor cells, accelerating the dissociation of nanoparticles and disrupting the redox balance of tumor cells. In vitro and in vivo studies showed that CPPa NP can successfully elevate the ROS level within 4T1 cells and has a better anticancer efficacy than PPa NP without CI-994 under laser irradiation. This study thus provides an effective approach to develop self-amplified activatable nanoparticles for enhanced PDT.
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Affiliation(s)
- Zixin Guo
- State Key Laboratory of Organic Electronics and Information Displays & Institute of Advanced Materials (IAM), Nanjing University of Posts & Telecommunications, 9 Wenyuan Road, Nanjing 210023, China.
| | - Nana Wang
- State Key Laboratory of Organic Electronics and Information Displays & Institute of Advanced Materials (IAM), Nanjing University of Posts & Telecommunications, 9 Wenyuan Road, Nanjing 210023, China.
| | - Xiaowen He
- State Key Laboratory of Organic Electronics and Information Displays & Institute of Advanced Materials (IAM), Nanjing University of Posts & Telecommunications, 9 Wenyuan Road, Nanjing 210023, China.
| | - Jinlong Shen
- State Key Laboratory of Organic Electronics and Information Displays & Institute of Advanced Materials (IAM), Nanjing University of Posts & Telecommunications, 9 Wenyuan Road, Nanjing 210023, China.
| | - Xiangqi Yang
- State Key Laboratory of Organic Electronics and Information Displays & Institute of Advanced Materials (IAM), Nanjing University of Posts & Telecommunications, 9 Wenyuan Road, Nanjing 210023, China.
| | - Chen Xie
- State Key Laboratory of Organic Electronics and Information Displays & Institute of Advanced Materials (IAM), Nanjing University of Posts & Telecommunications, 9 Wenyuan Road, Nanjing 210023, China.
| | - Quli Fan
- State Key Laboratory of Organic Electronics and Information Displays & Institute of Advanced Materials (IAM), Nanjing University of Posts & Telecommunications, 9 Wenyuan Road, Nanjing 210023, China.
| | - Wen Zhou
- State Key Laboratory of Organic Electronics and Information Displays & Institute of Advanced Materials (IAM), Nanjing University of Posts & Telecommunications, 9 Wenyuan Road, Nanjing 210023, China.
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15
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Abdullah KM, Sharma G, Takkar S, Kaushal JB, Pothuraju R, Chakravarti B, Batra SK, Siddiqui JA. α-lipoic acid modulates prostate cancer cell growth and bone cell differentiation. Sci Rep 2024; 14:4404. [PMID: 38388663 PMCID: PMC10884017 DOI: 10.1038/s41598-024-54479-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2023] [Accepted: 02/12/2024] [Indexed: 02/24/2024] Open
Abstract
Prostate cancer (PCa) progression leads to bone modulation in approximately 70% of affected men. A nutraceutical, namely, α-lipoic acid (α-LA), is known for its potent anti-cancer properties towards various cancers and has been implicated in treating and promoting bone health. Our study aimed to explore the molecular mechanism behind the role of α-LA as therapeutics in preventing PCa and its associated bone modulation. Notably, α-LA treatment significantly reduced the cell viability, migration, and invasion of PCa cell lines in a dose-dependent manner. In addition, α-LA supplementation dramatically increased reactive oxygen species (ROS) levels and HIF-1α expression, which started the downstream molecular cascade and activated JNK/caspase-3 signaling pathway. Flow cytometry data revealed the arrest of the cell cycle in the S-phase, which has led to apoptosis of PCa cells. Furthermore, the results of ALP (Alkaline phosphatase) and TRAP (tartrate-resistant acid phosphatase) staining signifies that α-LA supplementation diminished the PCa-mediated differentiation of osteoblasts and osteoclasts, respectively, in the MC3T3-E1 and bone marrow macrophages (BMMs) cells. In summary, α-LA supplementation enhanced cellular apoptosis via increased ROS levels, HIF-1α expression, and JNK/caspase-3 signaling pathway in advanced human PCa cell lines. Also, the treatment of α-LA improved bone health by reducing PCa-mediated bone cell modulation.
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Affiliation(s)
- K M Abdullah
- Department of Biochemistry and Molecular Biology, University of Nebraska Medical Center, Omaha, NE, 68198, USA
| | - Gunjan Sharma
- Department of Biochemistry and Molecular Biology, University of Nebraska Medical Center, Omaha, NE, 68198, USA
| | - Simran Takkar
- Department of Biochemistry and Molecular Biology, University of Nebraska Medical Center, Omaha, NE, 68198, USA
| | - Jyoti B Kaushal
- Department of Biochemistry and Molecular Biology, University of Nebraska Medical Center, Omaha, NE, 68198, USA
| | - Ramesh Pothuraju
- Department of Biochemistry and Molecular Biology, University of Nebraska Medical Center, Omaha, NE, 68198, USA
- Cancer Research Program, Rajiv Gandhi Centre for Biotechnology, Thiruvananthapuram, Kerala, 695014, India
| | - Bandana Chakravarti
- Department of Endocrinology, Sanjay Gandhi Postgraduate Institute of Medical Sciences, Lucknow, Uttar Pradesh, 226014, India
| | - Surinder K Batra
- Department of Biochemistry and Molecular Biology, University of Nebraska Medical Center, Omaha, NE, 68198, USA.
- Fred and Pamela Buffett Cancer Center, University of Nebraska Medical Center, Omaha, NE, 68198, USA.
- Eppley Institute for Research in Cancer and Allied Diseases, University of Nebraska Medical Center, Omaha, NE, 68198, USA.
- Department of Biochemistry and Molecular Biology, Fred and Pamela Buffett Cancer Center, University of Nebraska Medical Center, Omaha, NE, 68198-5870, USA.
| | - Jawed A Siddiqui
- Department of Biochemistry and Molecular Biology, University of Nebraska Medical Center, Omaha, NE, 68198, USA.
- Fred and Pamela Buffett Cancer Center, University of Nebraska Medical Center, Omaha, NE, 68198, USA.
- Department of Biochemistry and Molecular Biology, Fred and Pamela Buffett Cancer Center, University of Nebraska Medical Center, Omaha, NE, 68198-5870, USA.
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16
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Xu L, Jacobs R, Cao Y, Sun X, Qin X. Tissue-engineered bone construct promotes early osseointegration of implants with low primary stability in oversized osteotomy. BMC Oral Health 2024; 24:69. [PMID: 38200461 PMCID: PMC10782778 DOI: 10.1186/s12903-023-03834-x] [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: 11/09/2023] [Accepted: 12/27/2023] [Indexed: 01/12/2024] Open
Abstract
OBJECTIVES To evaluate the histological parameters and bone mechanical properties around implants with low primary stability (PS) in grafted bone substitutes within an oversized osteotomy. MATERIALS AND METHODS An oversized osteotomy penetrating the double cortical bone layers was made on both femora of 24 New Zealand white rabbits. Bilaterally in the femur of all animals, 48 implants were installed, subdivided into four groups, corresponding to four prepared tissue-engineering bone complexes (TEBCs), which were placed between the implant surface and native bone wall: A: tricalcium phosphate β (TCP-β); B: autologous adipose derived-stem cells with TCP-β (ASCs/TCP-β); C: ASCs transfected with the enhanced-GFP gene with TCP-β (EGFP-ASCs/TCP-β); D: ASCs transfected with the BMP-2 gene with TCP-β (BMP2-ASCs/TCP-β). Trichrome fluorescent labeling was conducted. Animals were sacrificed after eight weeks. The trichromatic fluorescent labeling (%TFL), area of new bone (%NB), residual material (%RM), bone-implant contact (%BIC), and the removal torque force (RTF, N/cm) were assessed. RESULTS ASCs were successfully isolated from adipose tissue, and the primary ASCs were induced into osteogenic, chondrogenic, and adipogenic differentiation. The BMP-2 overexpression of ASCs sustained for ten days and greatly enhanced the expression of osteopontin (OPN). At eight weeks post-implantation, increased %NB and RTF were found in all groups. The most significant value of %TFL, %BIC and lowest %RM was detected in group D. CONCLUSION The low PS implants osseointegrate with considerable new bone in grafted TEBCs within an oversized osteotomy. Applying BMP-2 overexpressing ASCs-based TEBC promoted earlier osseointegration and more solid bone mechanical properties on low PS implants. Bone graft offers a wedging effect for the implant with low PS at placement and promotes osteogenesis on their surface in the healing period.
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Affiliation(s)
- Lianyi Xu
- Department of Stomatology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, Hubei, China
- School of Stomatology, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, Hubei, China
- Hubei Province Key Laboratory of Oral and Maxillofacial Development and Regeneration, Wuhan, 430022, Hubei, China
- Department of Imaging and Pathology, OMFS-IMPATH, KU Leuven, Kapucijnenvoer 7, Leuven, 3000, Belgium
| | - Reinhilde Jacobs
- Department of Imaging and Pathology, OMFS-IMPATH, KU Leuven, Kapucijnenvoer 7, Leuven, 3000, Belgium
- Department of Dental Medicine, Karolinska Institutet, Stockholm, SE-171 77, Sweden
| | - Yingguang Cao
- Department of Stomatology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, Hubei, China
- School of Stomatology, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, Hubei, China
- Hubei Province Key Laboratory of Oral and Maxillofacial Development and Regeneration, Wuhan, 430022, Hubei, China
| | - Xiaojuan Sun
- Department of Oral and Maxillofacial Surgery, General Hospital, Ningxia Medical University, 804 Shengli Street, Yinchuan, 750004, China.
| | - Xu Qin
- Department of Stomatology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, Hubei, China.
- School of Stomatology, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, Hubei, China.
- Hubei Province Key Laboratory of Oral and Maxillofacial Development and Regeneration, Wuhan, 430022, Hubei, China.
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17
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Liu D, Wang L, Ha W, Li K, Shen R, Wang D. HIF-1α: A potential therapeutic opportunity in renal fibrosis. Chem Biol Interact 2024; 387:110808. [PMID: 37980973 DOI: 10.1016/j.cbi.2023.110808] [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: 08/11/2023] [Revised: 11/04/2023] [Accepted: 11/14/2023] [Indexed: 11/21/2023]
Abstract
Renal fibrosis is a common outcome of various renal injuries, leading to structural destruction and functional decline of the kidney, and is also a critical prognostic indicator and determinant in renal diseases therapy. Hypoxia is induced in different stress and injuries in kidney, and the hypoxia inducible factors (HIFs) are activated in the context of hypoxia in response and regulation the hypoxia in time. Under stress and hypoxia conditions, HIF-1α increases rapidly and regulates intracellular energy metabolism, cell proliferation, apoptosis, and inflammation. Through reprogramming cellular metabolism, HIF-1α can directly or indirectly induce abnormal accumulation of metabolites, changes in cellular epigenetic modifications, and activation of fibrotic signals. HIF-1α protein expression and activity are regulated by various posttranslational modifications. The drugs targeting HIF-1α can regulate the downstream cascade signals by inhibiting HIF-1α activity or promoting its degradation. As the renal fibrosis is affected by renal diseases, different diseases may trigger different mechanisms which will affect the therapy effect. Therefore, comprehensive analysis of the role and contribution of HIF-1α in occurrence and progression of renal fibrosis, and determination the appropriate intervention time of HIF-1α in the process of renal fibrosis are important ideas to explore effective treatment strategies. This study reviews the regulation of HIF-1α and its mediated complex cascade reactions in renal fibrosis, and lists some drugs targeting HIF-1α that used in preclinical studies, to provide new insight for the study of the renal fibrosis mechanism.
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Affiliation(s)
- Disheng Liu
- The First Hospital of Lanzhou University, Lanzhou University, Gansu, 730000, China
| | - Lu Wang
- The First Hospital of Lanzhou University, Lanzhou University, Gansu, 730000, China
| | - Wuhua Ha
- The First Hospital of Lanzhou University, Lanzhou University, Gansu, 730000, China
| | - Kan Li
- The First Hospital of Lanzhou University, Lanzhou University, Gansu, 730000, China
| | - Rong Shen
- School of Basic Medical Sciences, Lanzhou University, Gansu, 730000, China.
| | - Degui Wang
- School of Basic Medical Sciences, Lanzhou University, Gansu, 730000, China.
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18
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Cen J, Zhu H, Hong C, Zhang X, Liu S, Yang B, Yu Y, Wen Y, Cao J, Chen W. Synthesis and structure-activity optimization of hydroxypyridinones against rhabdomyolysis-induced acute kidney injury. Eur J Med Chem 2024; 263:115933. [PMID: 37976703 DOI: 10.1016/j.ejmech.2023.115933] [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: 09/26/2023] [Revised: 10/23/2023] [Accepted: 11/03/2023] [Indexed: 11/19/2023]
Abstract
The important role of accumulated iron is well recognized in the pathophysiology of rhabdomyolysis-induced acute kidney injury (RM-AKI). Our previous work further confirmed the labile iron triggered iron-dependent ferroptosis thus leading to the renal failure. In view of this, a series of hydroxypyridinones (HOPOs) with excellent iron chelation capability have been designed and synthesized in this study. A lead compound 6k was identified with good ferroptosis inhibition (EC50 = 20 μM) and no obvious cytotoxicity (CC50 > 100 μM), indicating a good therapeutic window (safety index = CC50/EC50 > 5.00). Moreover, intraperitoneal treatment of 6k (10 mg/kg) displayed a superior protective effect than deferiprone (50 mg/kg) in glycerol-induced RM-AKI mice with alleviating kidney dysfunction and pathological injury, decreasing the renal iron level as well as downregulating the mRNA level of ferroptosis associated genes (Acls4 and Ptgs2). Also, 6k exhibited a good in vivo safety profile, even at single high dose up to 1 g/kg without inducing mortality or toxic symptoms. Importantly, 6k could significantly upregulate the protein hypoxia-inducible factor 1α, possibly involving HIF pathway against the ferroptosis. These results collectively highlighted that the strategy of iron chelation and downstream ferroptosis inhibition has a therapeutic potential against RM-AKI.
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Affiliation(s)
- Jie Cen
- College of Pharmaceutical Sciences, Zhejiang University, Hangzhou, China
| | - Haiying Zhu
- Institute of Pharmacology and Toxicology, Zhejiang Province Key Laboratory of Anti-Cancer Drug Research, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou, China
| | - Chenggang Hong
- Institute of Pharmacology and Toxicology, Zhejiang Province Key Laboratory of Anti-Cancer Drug Research, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou, China
| | - Xi Zhang
- College of Pharmaceutical Sciences, Zhejiang University, Hangzhou, China
| | - Shuangrong Liu
- College of Pharmaceutical Sciences, Zhejiang University, Hangzhou, China
| | - Bo Yang
- Institute of Pharmacology and Toxicology, Zhejiang Province Key Laboratory of Anti-Cancer Drug Research, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou, China; The Innovation Institute for Artificial Intelligence in Medicine, Zhejiang University, Hangzhou, China; Engineering Research Center of Innovative Anticancer Drugs, Ministry of Education, China
| | - Yongping Yu
- College of Pharmaceutical Sciences, Zhejiang University, Hangzhou, China
| | - Yuanmei Wen
- The Innovation Institute for Artificial Intelligence in Medicine, Zhejiang University, Hangzhou, China
| | - Ji Cao
- Institute of Pharmacology and Toxicology, Zhejiang Province Key Laboratory of Anti-Cancer Drug Research, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou, China; The Innovation Institute for Artificial Intelligence in Medicine, Zhejiang University, Hangzhou, China; Engineering Research Center of Innovative Anticancer Drugs, Ministry of Education, China; Cancer Center of Zhejiang University, Hangzhou, China.
| | - Wenteng Chen
- College of Pharmaceutical Sciences, Zhejiang University, Hangzhou, China.
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19
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Morris DR, Qu Y, Jones-Hall YL, Liu T, Ivanciuc T, Garofalo RP, Casola A. Hypoxia-inducible-factors differentially contribute to clinical disease and the control of viral replication during RSV infection. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2023:2023.08.15.553422. [PMID: 37645750 PMCID: PMC10461990 DOI: 10.1101/2023.08.15.553422] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/31/2023]
Abstract
Hypoxia-inducible-factors (HIF) are transcription factors that regulate cellular adaptation to hypoxic conditions, enabling cells to survive in low-oxygen environments. Viruses have evolved to stabilize this pathway to promote successful viral infection, therefore modulation of HIFs could represent a novel antiviral strategy. In previous in vitro studies, we found that respiratory syncytial virus (RSV), a leading cause of respiratory illness, stabilizes HIFs under normoxic conditions, with inhibition of HIF-1α resulting in reduced viral replication. Despite several HIF modulating compounds being tested/approved for use in other non-infectious models, little is known about their efficacy against respiratory viruses using relevant animal models. This study aimed to characterize the disease modulating properties and antiviral potential of anti-HIF-1α (PX478) and anti-HIF-2α (PT2385) in RSV-infected BALB/c mice. We found that inhibition of HIF-1α worsen clinical disease parameters, while simultaneously improving airway function. Additionally, anti-HIF-1α results in significantly reduced viral titer at early and peak time points of RSV replication, followed by a loss in viral clearance when given every day, but not every-other-day. In contrast, inhibition of HIF-2α was associated with improved clinical parameters, with no changes in airway function, and amelioration of interstitial pneumonia. Furthermore, anti-HIF-2α reduced early and peak lung viral replication, with no impairment of viral clearance. Analysis of lung cells found significant modification in the T cell compartment that correlated with changes in lung pathology and viral titers in response to each HIF inhibitor administration. These data underscore the complex role of HIFs in RSV infection and highlight the need for careful therapeutic consideration.
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Affiliation(s)
- Dorothea R. Morris
- Department of Microbiology & Immunology, The University of Texas Medical Branch, Galveston, TX, USA
- School of Population & Public Health, The University of Texas Medical Branch, Galveston, TX, USA
- Department of Pediatrics, The University of Texas Medical Branch, Galveston, TX, USA
| | - Yue Qu
- Department of Pediatrics, The University of Texas Medical Branch, Galveston, TX, USA
| | - Yava L. Jones-Hall
- School of Veterinary Medicine and Biomedical Science, Texas A&M University, College Station, TX, USA
| | - Tianshuang Liu
- Department of Pediatrics, The University of Texas Medical Branch, Galveston, TX, USA
| | - Teodora Ivanciuc
- Department of Pediatrics, The University of Texas Medical Branch, Galveston, TX, USA
| | - Roberto P. Garofalo
- Department of Microbiology & Immunology, The University of Texas Medical Branch, Galveston, TX, USA
- Department of Pediatrics, The University of Texas Medical Branch, Galveston, TX, USA
| | - Antonella Casola
- Department of Microbiology & Immunology, The University of Texas Medical Branch, Galveston, TX, USA
- Department of Pediatrics, The University of Texas Medical Branch, Galveston, TX, USA
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20
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Zhao L, Hao Y, Tang S, Han X, Li R, Zhou X. Energy metabolic reprogramming regulates programmed cell death of renal tubular epithelial cells and might serve as a new therapeutic target for acute kidney injury. Front Cell Dev Biol 2023; 11:1276217. [PMID: 38054182 PMCID: PMC10694365 DOI: 10.3389/fcell.2023.1276217] [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: 08/11/2023] [Accepted: 11/08/2023] [Indexed: 12/07/2023] Open
Abstract
Acute kidney injury (AKI) induces significant energy metabolic reprogramming in renal tubular epithelial cells (TECs), thereby altering lipid, glucose, and amino acid metabolism. The changes in lipid metabolism encompass not only the downregulation of fatty acid oxidation (FAO) but also changes in cell membrane lipids and triglycerides metabolism. Regarding glucose metabolism, AKI leads to increased glycolysis, activation of the pentose phosphate pathway (PPP), inhibition of gluconeogenesis, and upregulation of the polyol pathway. Research indicates that inhibiting glycolysis, promoting the PPP, and blocking the polyol pathway exhibit a protective effect on AKI-affected kidneys. Additionally, changes in amino acid metabolism, including branched-chain amino acids, glutamine, arginine, and tryptophan, play an important role in AKI progression. These metabolic changes are closely related to the programmed cell death of renal TECs, involving autophagy, apoptosis, necroptosis, pyroptosis, and ferroptosis. Notably, abnormal intracellular lipid accumulation can impede autophagic clearance, further exacerbating lipid accumulation and compromising autophagic function, forming a vicious cycle. Recent studies have demonstrated the potential of ameliorating AKI-induced kidney damage through calorie and dietary restriction. Consequently, modifying the energy metabolism of renal TECs and dietary patterns may be an effective strategy for AKI treatment.
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Affiliation(s)
- Limei Zhao
- The Fifth Clinical Medical College of Shanxi Medical University, Taiyuan, Shanxi, China
| | - Yajie Hao
- The Fifth Clinical Medical College of Shanxi Medical University, Taiyuan, Shanxi, China
| | - Shuqin Tang
- The Fifth Clinical Medical College of Shanxi Medical University, Taiyuan, Shanxi, China
| | - Xiutao Han
- The Third Clinical College, Shanxi University of Chinese Medicine, Jinzhong, Shanxi, China
| | - Rongshan Li
- Department of Nephrology, Shanxi Provincial People’s Hospital, The Fifth Clinical Medical College of Shanxi Medical University, Taiyuan, Shanxi, China
| | - Xiaoshuang Zhou
- Department of Nephrology, Shanxi Provincial People’s Hospital, The Fifth Clinical Medical College of Shanxi Medical University, Taiyuan, Shanxi, China
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21
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Shan C, Xia Y, Wu Z, Zhao J. HIF-1α and periodontitis: Novel insights linking host-environment interplay to periodontal phenotypes. PROGRESS IN BIOPHYSICS AND MOLECULAR BIOLOGY 2023; 184:50-78. [PMID: 37769974 DOI: 10.1016/j.pbiomolbio.2023.09.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/11/2023] [Revised: 08/27/2023] [Accepted: 09/20/2023] [Indexed: 10/03/2023]
Abstract
Periodontitis, the sixth most prevalent epidemic disease globally, profoundly impacts oral aesthetics and masticatory functionality. Hypoxia-inducible factor-1α (HIF-1α), an oxygen-dependent transcriptional activator, has emerged as a pivotal regulator in periodontal tissue and alveolar bone metabolism, exerts critical functions in angiogenesis, erythropoiesis, energy metabolism, and cell fate determination. Numerous essential phenotypes regulated by HIF are intricately associated with bone metabolism in periodontal tissues. Extensive investigations have highlighted the central role of HIF and its downstream target genes and pathways in the coupling of angiogenesis and osteogenesis. Within this concise perspective, we comprehensively review the cellular phenotypic alterations and microenvironmental dynamics linking HIF to periodontitis. We analyze current research on the HIF pathway, elucidating its impact on bone repair and regeneration, while unraveling the involved cellular and molecular mechanisms. Furthermore, we briefly discuss the potential application of targeted interventions aimed at HIF in the field of bone tissue regeneration engineering. This review expands our biological understanding of the intricate relationship between the HIF gene and bone angiogenesis in periodontitis and offers valuable insights for the development of innovative therapies to expedite bone repair and regeneration.
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Affiliation(s)
- Chao Shan
- Department of Dentistry, Xinjiang Medical University, Ürümqi, China; The First Affiliated Hospital of Xinjiang Medical University (Affiliated Stomatology Hospital), Ürümqi, China
| | - YuNing Xia
- Department of Dentistry, Xinjiang Medical University, Ürümqi, China; The First Affiliated Hospital of Xinjiang Medical University (Affiliated Stomatology Hospital), Ürümqi, China
| | - Zeyu Wu
- Department of Dentistry, Xinjiang Medical University, Ürümqi, China; The First Affiliated Hospital of Xinjiang Medical University (Affiliated Stomatology Hospital), Ürümqi, China
| | - Jin Zhao
- Department of Dentistry, Xinjiang Medical University, Ürümqi, China; The First Affiliated Hospital of Xinjiang Medical University (Affiliated Stomatology Hospital), Ürümqi, China; Xinjiang Uygur Autonomous Region Institute of Stomatology, Ürümqi, China.
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22
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Zhang J, Luo Q, Hu Q, Zhang T, Shi J, Kong L, Fu D, Yang C, Zhang Z. An injectable bioactive dressing based on platelet-rich plasma and nanoclay: Sustained release of deferoxamine to accelerate chronic wound healing. Acta Pharm Sin B 2023; 13:4318-4336. [PMID: 37799395 PMCID: PMC10547914 DOI: 10.1016/j.apsb.2022.11.006] [Citation(s) in RCA: 12] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2022] [Revised: 08/29/2022] [Accepted: 09/20/2022] [Indexed: 11/13/2022] Open
Abstract
Delayed diabetic wound healing has placed an enormous burden on society. The key factors limiting wound healing include unresolved inflammation and impaired angiogenesis. Platelet-rich plasma (PRP) gel, a popular biomaterial in the field of regeneration, has limited applications due to its non-injectable properties and rapid release and degradation of growth factors. Here, we prepared an injectable hydrogel (DPLG) based on PRP and laponite by a simple one-step mixing method. Taking advantages of the non-covalent interactions, DPLG could overcome the limitations of PRP gels, which is injectable to fill irregular injures and could serve as a local drug reservoir to achieve the sustained release of growth factors in PRP and deferoxamine (an angiogenesis promoter). DPLG has an excellent ability in accelerating wound healing by promoting macrophage polarization and angiogenesis in a full-thickness skin defect model in type I diabetic rats and normal rats. Taken together, this study may provide the ingenious and simple bioactive wound dressing with a superior ability to promote wound healing.
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Affiliation(s)
- Jiao Zhang
- Tongji School of Pharmacy, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Qian Luo
- Tongji School of Pharmacy, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Qian Hu
- Tongji School of Pharmacy, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Tiantian Zhang
- Tongji School of Pharmacy, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Jingyu Shi
- Liyuan Hospital of Tongji Medical College of Huazhong University of Science and Technology, Wuhan 430030, China
| | - Li Kong
- Tongji School of Pharmacy, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Dehao Fu
- Department of Orthopaedics, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200080, China
| | - Conglian Yang
- Tongji School of Pharmacy, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Zhiping Zhang
- Tongji School of Pharmacy, Huazhong University of Science and Technology, Wuhan 430030, China
- National Engineering Research Center for Nanomedicine, Huazhong University of Science and Technology, Wuhan 430030, China
- Hubei Engineering Research Center for Novel Drug Delivery System, Huazhong University of Science and Technology, Wuhan 430030, China
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23
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You S, Zhang J, Yu L, Li Z, Zhang J, Zhao N, Xie Z, Li Y, Akram Z, Sun S. Construction of SLC16A1/3 Targeted Gallic Acid-Iron-Embelin Nanoparticles for Regulating Glycolysis and Redox Pathways in Cervical Cancer. Mol Pharm 2023; 20:4574-4586. [PMID: 37307591 DOI: 10.1021/acs.molpharmaceut.3c00294] [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] [Indexed: 06/14/2023]
Abstract
SLC16A1 and SLC16A3 (SLC16A1/3) are highly expressed in cervical cancers and associated with the malignant biological behavior of cancer. SLC16A1/3 is the critical hub for regulating the internal and external environment, glycolysis, and redox homeostasis in cervical cancer cells. Inhibiting SLC16A1/3 provides a new thought to eliminate cervical cancer effectively. There are few reports on effective treatment strategies to eliminate cervical cancer by simultaneously targeting SLC16A1/3. GEO database analysis and quantitative reverse transcription polymerase chain reaction experiment were used to confirm the high expression of SLC16A1/3. The potential inhibitor of SLC16A1/3 was screened from Siwu Decoction by using network pharmacology and molecular docking technology. The mRNA levels and protein levels of SLC16A1/3 in SiHa and HeLa cells treated by Embelin (EMB) were clarified, respectively. Furthermore, the Gallic acid-iron (GA-Fe) drug delivery system was used to improve its anti-cancer performance. Compared with normal cervical cells, SLC16A1/3 mRNA was over-expressed in SiHa and HeLa cells. Through the analysis of Siwu Decoction, a simultaneously targeted SLC16A1/3 inhibitor EMB was discovered. It was found for the first time that EMB promoted lactic acid accumulation and further induced redox dyshomeostasis and glycolysis disorder by simultaneously inhibiting SLC16A1/3. The gallic acid-iron-Embelin (GA-Fe@EMB) drug delivery system delivered EMB, which had a synergistic anti-cervical cancer effect. Under the irradiation of a near-infrared laser, the GA-Fe@EMB could elevate the temperature of the tumor area effectively. Subsequently, EMB was released and mediated the lactic acid accumulation and the GA-Fe nanoparticle synergistic Fenton reaction to promote ROS accumulation, thereby increasing the lethality of the nanoparticles on cervical cancer cells. GA-Fe@EMB can target cervical cancer marker SLC16A1/3 to regulate glycolysis and redox pathways, synergistically with photothermal therapy, which provides a new avenue for the synergistic treatment of malignant cervical cancer.
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Affiliation(s)
- Shiwan You
- Key Laboratory of Xinjiang Phytomedicine Resource and Utilization, Ministry of Education, Shihezi University College of Pharmacy, Shihezi 832003, Xinjiang, China
| | - Jing Zhang
- Key Laboratory of Xinjiang Phytomedicine Resource and Utilization, Ministry of Education, Shihezi University College of Pharmacy, Shihezi 832003, Xinjiang, China
- School of Medicine, Xinjiang University of Science & Technology, Korla, 841000, China
| | - Lan Yu
- Shanxi Key Laboratory of Natural Products & Chemical Biology, College of Chemistry & Pharmacy, Northwest Agriculture and Forestry University, Yangling, Shaanxi 712100, China
| | - Zuoping Li
- Key Laboratory of Xinjiang Phytomedicine Resource and Utilization, Ministry of Education, Shihezi University College of Pharmacy, Shihezi 832003, Xinjiang, China
- Key Laboratory of Xinjiang Phytomedicine Resource and Utilization, Ministry of Education, Shihezi University College of Chemistry and Chemical Engineering, Shihezi 832002, Xinjiang, China
| | - Jiaru Zhang
- Key Laboratory of Xinjiang Phytomedicine Resource and Utilization, Ministry of Education, Shihezi University College of Pharmacy, Shihezi 832003, Xinjiang, China
| | - Na Zhao
- Key Laboratory of Xinjiang Phytomedicine Resource and Utilization, Ministry of Education, Shihezi University College of Pharmacy, Shihezi 832003, Xinjiang, China
| | - Zhenzhen Xie
- Key Laboratory of Xinjiang Phytomedicine Resource and Utilization, Ministry of Education, Shihezi University College of Pharmacy, Shihezi 832003, Xinjiang, China
- Key Laboratory of Xinjiang Phytomedicine Resource and Utilization, Ministry of Education, Shihezi University College of Chemistry and Chemical Engineering, Shihezi 832002, Xinjiang, China
| | - Youping Li
- Key Laboratory of Xinjiang Phytomedicine Resource and Utilization, Ministry of Education, Shihezi University College of Pharmacy, Shihezi 832003, Xinjiang, China
| | - Zubair Akram
- Key Laboratory of Xinjiang Phytomedicine Resource and Utilization, Ministry of Education, Shihezi University College of Chemistry and Chemical Engineering, Shihezi 832002, Xinjiang, China
| | - Shiguo Sun
- Key Laboratory of Xinjiang Phytomedicine Resource and Utilization, Ministry of Education, Shihezi University College of Pharmacy, Shihezi 832003, Xinjiang, China
- College of Chemistry and Pharmaceutical Engineering, Hebei University of Science and Technology, Shijiazhuang 050018, China
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24
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Hoskin AJ, Holt AK, Legge DN, Collard TJ, Williams AC, Vincent EE. Aspirin and the metabolic hallmark of cancer: novel therapeutic opportunities for colorectal cancer. EXPLORATION OF TARGETED ANTI-TUMOR THERAPY 2023; 4:600-615. [PMID: 37720350 PMCID: PMC10501897 DOI: 10.37349/etat.2023.00155] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2023] [Accepted: 06/08/2023] [Indexed: 09/19/2023] Open
Abstract
Aspirin is a well-known nonsteroidal anti-inflammatory drug (NSAID) that has a recognized role in cancer prevention as well as evidence to support its use as an adjuvant for cancer treatment. Importantly there has been an increasing number of studies contributing to the mechanistic understanding of aspirins' anti-tumour effects and these studies continue to inform the potential clinical use of aspirin for both the prevention and treatment of cancer. This review focuses on the emerging role of aspirin as a regulator of metabolic reprogramming, an essential "hallmark of cancer" required to support the increased demand for biosynthetic intermediates needed for sustained proliferation. Cancer cells frequently undergo metabolic rewiring driven by oncogenic pathways such as hypoxia-inducible factor (HIF), wingless-related integration site (Wnt), mammalian target of rapamycin (mTOR), and nuclear factor kappa light chain enhancer of activated B cells (NF-κB), which supports the increased proliferative rate as tumours develop and progress. Reviewed here, cellular metabolic reprogramming has been identified as a key mechanism of action of aspirin and include the regulation of key metabolic drivers, the regulation of enzymes involved in glycolysis and glutaminolysis, and altered nutrient utilisation upon aspirin exposure. Importantly, as aspirin treatment exposes metabolic vulnerabilities in tumour cells, there is an opportunity for the use of aspirin in combination with specific metabolic inhibitors in particular, glutaminase (GLS) inhibitors currently in clinical trials such as telaglenastat (CB-839) and IACS-6274 for the treatment of colorectal and potentially other cancers. The increasing evidence that aspirin impacts metabolism in cancer cells suggests that aspirin could provide a simple, relatively safe, and cost-effective way to target this important hallmark of cancer. Excitingly, this review highlights a potential new role for aspirin in improving the efficacy of a new generation of metabolic inhibitors currently undergoing clinical investigation.
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Affiliation(s)
- Ashley J. Hoskin
- Department of Cellular and Molecular Medicine, Biomedical Sciences Building, University of Bristol, BS8 1TW Bristol, UK
| | - Amy K. Holt
- Department of Cellular and Molecular Medicine, Biomedical Sciences Building, University of Bristol, BS8 1TW Bristol, UK
| | - Danny N. Legge
- Department of Translational Health Sciences, Dorothy Hodgkin Building, University of Bristol, BS1 3NY Bristol, UK
| | - Tracey J. Collard
- Department of Cellular and Molecular Medicine, Biomedical Sciences Building, University of Bristol, BS8 1TW Bristol, UK
| | - Ann C. Williams
- Department of Cellular and Molecular Medicine, Biomedical Sciences Building, University of Bristol, BS8 1TW Bristol, UK
| | - Emma E. Vincent
- Department of Translational Health Sciences, Dorothy Hodgkin Building, University of Bristol, BS1 3NY Bristol, UK
- MRC Integrative Epidemiology Unit, Oakfield House, University of Bristol, BS8 2BN Bristol, UK
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25
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Hu G, Yu Y, Sharma D, Pruett-Miller SM, Ren Y, Zhang GF, Karner CM. Glutathione limits RUNX2 oxidation and degradation to regulate bone formation. JCI Insight 2023; 8:e166888. [PMID: 37432749 PMCID: PMC10543723 DOI: 10.1172/jci.insight.166888] [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: 11/03/2022] [Accepted: 07/06/2023] [Indexed: 07/12/2023] Open
Abstract
Reactive oxygen species (ROS) are natural products of mitochondrial oxidative metabolism and oxidative protein folding. ROS levels must be well controlled, since elevated ROS has been shown to have deleterious effects on osteoblasts. Moreover, excessive ROS is thought to underlie many of the skeletal phenotypes associated with aging and sex steroid deficiency in mice and humans. The mechanisms by which osteoblasts regulate ROS and how ROS inhibits osteoblasts are not well understood. Here, we demonstrate that de novo glutathione (GSH) biosynthesis is essential in neutralizing ROS and establish a proosteogenic reduction and oxidation reaction (REDOX) environment. Using a multifaceted approach, we demonstrate that reducing GSH biosynthesis led to acute degradation of RUNX2, impaired osteoblast differentiation, and reduced bone formation. Conversely, reducing ROS using catalase enhanced RUNX2 stability and promoted osteoblast differentiation and bone formation when GSH biosynthesis was limited. Highlighting the therapeutic implications of these findings, in utero antioxidant therapy stabilized RUNX2 and improved bone development in the Runx2+/- haplo-insufficient mouse model of human cleidocranial dysplasia. Thus, our data establish RUNX2 as a molecular sensor of the osteoblast REDOX environment and mechanistically clarify how ROS negatively impacts osteoblast differentiation and bone formation.
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Affiliation(s)
- Guoli Hu
- Department of Internal Medicine, University of Texas Southwestern Medical Center, Dallas, Texas, USA
| | - Yilin Yu
- Department of Internal Medicine, University of Texas Southwestern Medical Center, Dallas, Texas, USA
| | - Deepika Sharma
- Department of Orthopaedic Surgery, Duke University School of Medicine, Durham, North Carolina, USA
| | - Shondra M. Pruett-Miller
- Department of Cell and Molecular Biology, St. Jude Children’s Research Hospital, Memphis, Tennessee, USA
| | - Yinshi Ren
- Center for Excellence in Hip Disorders, Texas Scottish Rite Hospital for Children, Dallas, Texas, USA
| | - Guo-Fang Zhang
- Department of Medicine, Division of Endocrinology, Metabolism Nutrition, and
- Sarah W. Stedman Nutrition and Metabolism Center & Duke Molecular Physiology Institute, Duke University, Durham, North Carolina, USA
| | - Courtney M. Karner
- Department of Internal Medicine, University of Texas Southwestern Medical Center, Dallas, Texas, USA
- Department of Orthopaedic Surgery, Duke University School of Medicine, Durham, North Carolina, USA
- Charles and Jane Pak Center for Mineral Metabolism and Clinical Research, University of Texas Southwestern Medical Center, Dallas, Texas, USA
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26
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Li X, Cao D, Sun S, Wang Y. Anticancer therapeutic effect of ginsenosides through mediating reactive oxygen species. Front Pharmacol 2023; 14:1215020. [PMID: 37564184 PMCID: PMC10411515 DOI: 10.3389/fphar.2023.1215020] [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: 05/01/2023] [Accepted: 07/10/2023] [Indexed: 08/12/2023] Open
Abstract
Dysregulation of reactive oxygen species (ROS) production and ROS-regulated pathways in cancer cells leads to abnormal accumulation of reactive oxygen species, displaying a double-edged role in cancer progression, either supporting transformation/proliferation and stimulating tumorigenesis or inducing cell death. Cancer cells can accommodate reactive oxygen species by regulating them at levels that allow the activation of pro-cancer signaling pathways without inducing cell death via modulation of the antioxidant defense system. Therefore, targeting reactive oxygen species is a promising approach for cancer treatment. Ginsenosides, their derivatives, and related drug carriers are well-positioned to modulate multiple signaling pathways by regulating oxidative stress-mediated cellular and molecular targets to induce apoptosis; regulate cell cycle arrest and autophagy, invasion, and metastasis; and enhance the sensitivity of drug-resistant cells to chemotherapeutic agents of different cancers depending on the type, level, and source of reactive oxygen species, and the type and stage of the cancer. Our review focuses on the pro- and anticancer effects of reactive oxygen species, and summarizes the mechanisms and recent advances in different ginsenosides that bring about anticancer effects by targeting reactive oxygen species, providing new ideas for designing further anticancer studies or conducting more preclinical and clinical studies.
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Affiliation(s)
- Xiaonan Li
- Department of Geriatrics, The First Hospital of Jilin University, Changchun, China
| | - Donghui Cao
- Department of Clinical Research, The First Hospital of Jilin University, Changchun, China
| | - Siming Sun
- Department of Clinical Research, The First Hospital of Jilin University, Changchun, China
| | - Yuehui Wang
- Department of Geriatrics, The First Hospital of Jilin University, Changchun, China
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27
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Zhang Q, Yang J, Hu N, Liu J, Yu H, Pan H, Chen D, Ruan C. Small-molecule amines: a big role in the regulation of bone homeostasis. Bone Res 2023; 11:40. [PMID: 37482549 PMCID: PMC10363555 DOI: 10.1038/s41413-023-00262-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2022] [Revised: 03/14/2023] [Accepted: 03/31/2023] [Indexed: 07/25/2023] Open
Abstract
Numerous small-molecule amines (SMAs) play critical roles in maintaining bone homeostasis and promoting bone regeneration regardless of whether they are applied as drugs or biomaterials. On the one hand, SMAs promote bone formation or inhibit bone resorption through the regulation of key molecular signaling pathways in osteoblasts/osteoclasts; on the other hand, owing to their alkaline properties as well as their antioxidant and anti-inflammatory features, most SMAs create a favorable microenvironment for bone homeostasis. However, due to a lack of information on their structure/bioactivity and underlying mechanisms of action, certain SMAs cannot be developed into drugs or biomaterials for bone disease treatment. In this review, we thoroughly summarize the current understanding of SMA effects on bone homeostasis, including descriptions of their classifications, biochemical features, recent research advances in bone biology and related regulatory mechanisms in bone regeneration. In addition, we discuss the challenges and prospects of SMA translational research.
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Affiliation(s)
- Qian Zhang
- Research Center for Human Tissue and Organs Degeneration, Institute of Biomedicine and Biotechnology, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen, 518055, China
- University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Jirong Yang
- Research Center for Human Tissue and Organs Degeneration, Institute of Biomedicine and Biotechnology, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen, 518055, China
- University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Nan Hu
- Department of Nephrology, Shenzhen People's Hospital (The Second Clinical Medical College, Jinan University; The First Affiliated Hospital, Southern University of Science and Technology), Shenzhen, 518020, Guangdong, China
| | - Juan Liu
- Research Center for Human Tissue and Organs Degeneration, Institute of Biomedicine and Biotechnology, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen, 518055, China
| | - Huan Yu
- Research Center for Computer-Aided Drug Discovery, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen, 518055, China
| | - Haobo Pan
- Research Center for Human Tissue and Organs Degeneration, Institute of Biomedicine and Biotechnology, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen, 518055, China
- University of Chinese Academy of Sciences, Beijing, 100049, China
- Shenzhen Healthemes Biotechnology Co., Ltd., Shenzhen, 518102, China
| | - Di Chen
- Research Center for Computer-Aided Drug Discovery, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen, 518055, China.
- Faculty of Pharmaceutical Sciences, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen, 518055, China.
| | - Changshun Ruan
- Research Center for Human Tissue and Organs Degeneration, Institute of Biomedicine and Biotechnology, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen, 518055, China.
- University of Chinese Academy of Sciences, Beijing, 100049, China.
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28
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Lee RH, Bain J, Muehlbauer M, Ilkayeva O, Pieper C, Wixted D, Colón-Emeric C. Metabolic factors associated with incident fracture among older adults with type 2 diabetes mellitus: a nested case-control study. Osteoporos Int 2023; 34:1263-1268. [PMID: 37100949 PMCID: PMC10443052 DOI: 10.1007/s00198-023-06763-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/12/2022] [Accepted: 04/18/2023] [Indexed: 04/28/2023]
Abstract
Older adults with type 2 diabetes mellitus have an increased risk of fracture despite a paradoxically higher average bone mineral density. This study identified additional markers of fracture risk in this at-risk population. Non-esterified fatty acids and the amino acids glutamine/glutamate and asparagine/aspartate were associated with incident fractures. PURPOSE Type 2 diabetes mellitus (T2D) is associated with an increased risk of fracture despite a paradoxically higher bone mineral density. Additional markers of fracture risk are needed to identify at-risk individuals. METHOD The MURDOCK study is an ongoing study, initiated in 2007, of residents in central North Carolina. At enrollment, participants completed health questionnaires and provided biospecimen samples. In this nested case-control analysis, incident fractures among adults with T2D, age ≥ 50 years, were identified by self-report and electronic medical record query. Fracture cases were matched 1:2 by age, gender, race/ethnicity, and BMI to those without incident fracture. Stored sera were analyzed for conventional metabolites and targeted metabolomics (amino acids and acylcarnitines). The association between incident fracture and metabolic profile was assessed using conditional logistic regression, controlled for multiple confounders including tobacco and alcohol use, medical comorbidities, and medications. RESULTS 107 incident fractures were identified with 210 matched controls. Targeted metabolomics analysis included 2 amino acid factors, consisting of: 1) the branched chain amino acids, phenylalanine and tyrosine; and 2) glutamine/glutamate, asparagine/aspartate, arginine, and serine [E/QD/NRS]. After controlling for multiple risk factors, E/QD/NRS was significantly associated with incident fracture (OR 2.50, 95% CI: 1.36-4.63). Non-esterified fatty acids were associated with lower odds of fracture (OR 0.17, 95% CI: 0.03-0.87). There were no associations with fracture among other conventional metabolites, acylcarnitine factors, nor the other amino acid factors. CONCLUSION Our results indicate novel biomarkers, and suggest potential mechanisms, of fracture risk among older adults with T2D.
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Affiliation(s)
- Richard H Lee
- Department of Medicine, Duke University School of Medicine, Durham, NC, USA.
- Center for the Study of Aging and Human Development, Duke University, Durham, NC, USA.
| | - James Bain
- Department of Medicine, Duke University School of Medicine, Durham, NC, USA
- Center for the Study of Aging and Human Development, Duke University, Durham, NC, USA
- Duke Molecular Physiology Institute, Durham, NC, USA
| | - Michael Muehlbauer
- Department of Medicine, Duke University School of Medicine, Durham, NC, USA
- Duke Molecular Physiology Institute, Durham, NC, USA
| | - Olga Ilkayeva
- Duke Molecular Physiology Institute, Durham, NC, USA
| | - Carl Pieper
- Center for the Study of Aging and Human Development, Duke University, Durham, NC, USA
| | - Doug Wixted
- Duke Clinical and Translational Science Institute, Durham, NC, USA
| | - Cathleen Colón-Emeric
- Department of Medicine, Duke University School of Medicine, Durham, NC, USA
- Center for the Study of Aging and Human Development, Duke University, Durham, NC, USA
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29
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Sabini E, Arboit L, Khan MP, Lanzolla G, Schipani E. Oxidative phosphorylation in bone cells. Bone Rep 2023; 18:101688. [PMID: 37275785 PMCID: PMC10238578 DOI: 10.1016/j.bonr.2023.101688] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/13/2023] [Revised: 05/15/2023] [Accepted: 05/22/2023] [Indexed: 06/07/2023] Open
Abstract
The role of energy metabolism in bone cells is an active field of investigation. Bone cells are metabolically very active and require high levels of energy in the form of adenosine triphosphate (ATP) to support their function. ATP is generated in the cytosol via glycolysis coupled with lactic acid fermentation and in the mitochondria via oxidative phosphorylation (OXPHOS). OXPHOS is the final convergent metabolic pathway for all oxidative steps of dietary nutrients catabolism. The formation of ATP is driven by an electrochemical gradient that forms across the mitochondrial inner membrane through to the activity of the electron transport chain (ETC) complexes and requires the presence of oxygen as the final electron acceptor. The current literature supports a model in which glycolysis is the main source of energy in undifferentiated mesenchymal progenitors and terminally differentiated osteoblasts, whereas OXPHOS appears relevant in an intermediate stage of differentiation of those cells. Conversely, osteoclasts progressively increase OXPHOS during differentiation until they become multinucleated and mitochondrial-rich terminal differentiated cells. Despite the abundance of mitochondria, mature osteoclasts are considered ATP-depleted, and the availability of ATP is a critical factor that regulates the low survival capacity of these cells, which rapidly undergo death by apoptosis. In addition to ATP, bioenergetic metabolism generates reactive oxygen species (ROS) and intermediate metabolites that regulate a variety of cellular functions, including epigenetics changes of genomic DNA and histones. This review will briefly discuss the role of OXPHOS and the cross-talks OXPHOS-glycolysis in the differentiation process of bone cells.
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Affiliation(s)
| | | | | | | | - Ernestina Schipani
- Corresponding author at: Department of Orthopaedic Surgery, University of Pennsylvania, Perelman Medical School, 310A Stemmler Hall, 3450 Hamilton Walk, Philadelphia, PA 19104, USA.
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Bedree JK, Kerns K, Chen T, Lima BP, Liu G, Ha P, Shi J, Pan HC, Kim JK, Tran L, Minot SS, Hendrickson EL, Lamont EI, Schulte F, Hardt M, Stephens D, Patel M, Kokaras A, Stodieck L, Shirazi-Fard Y, Wu B, Kwak JH, Ting K, Soo C, McLean JS, He X, Shi W. Specific host metabolite and gut microbiome alterations are associated with bone loss during spaceflight. Cell Rep 2023; 42:112299. [PMID: 37080202 PMCID: PMC10344367 DOI: 10.1016/j.celrep.2023.112299] [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: 01/26/2022] [Revised: 10/30/2022] [Accepted: 03/07/2023] [Indexed: 04/22/2023] Open
Abstract
Understanding the axis of the human microbiome and physiological homeostasis is an essential task in managing deep-space-travel-associated health risks. The NASA-led Rodent Research 5 mission enabled an ancillary investigation of the gut microbiome, varying exposure to microgravity (flight) relative to ground controls in the context of previously shown bone mineral density (BMD) loss that was observed in these flight groups. We demonstrate elevated abundance of Lactobacillus murinus and Dorea sp. during microgravity exposure relative to ground control through whole-genome sequencing and 16S rRNA analyses. Specific functionally assigned gene clusters of L. murinus and Dorea sp. capable of producing metabolites, lactic acid, leucine/isoleucine, and glutathione are enriched. These metabolites are elevated in the microgravity-exposed host serum as shown by liquid chromatography-tandem mass spectrometry (LC-MS/MS) metabolomic analysis. Along with BMD loss, ELISA reveals increases in osteocalcin and reductions in tartrate-resistant acid phosphatase 5b signifying additional loss of bone homeostasis in flight.
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Affiliation(s)
- Joseph K Bedree
- Section of Oral Biology, Division of Oral Biology and Medicine, School of Dentistry, University of California, Los Angeles, Los Angeles, CA 90095, USA; Department of Microbiology, The Forsyth Institute, Cambridge, MA 02142, USA.
| | - Kristopher Kerns
- Department of Periodontics, School of Dentistry, University of Washington, Seattle, WA 98195, USA
| | - Tsute Chen
- Department of Microbiology, The Forsyth Institute, Cambridge, MA 02142, USA; Department of Oral Medicine, Infection and Immunity, Harvard School of Dental Medicine, Boston, MA 02115, USA
| | - Bruno P Lima
- Department of Diagnostic and Biological Sciences, University of Minnesota, Minneapolis, MN 55455, USA
| | - Guo Liu
- Section of Oral Biology, Division of Oral Biology and Medicine, School of Dentistry, University of California, Los Angeles, Los Angeles, CA 90095, USA
| | - Pin Ha
- Section of Orthodontics, Division of Growth & Development, School of Dentistry, University of California, Los Angeles, Los Angeles, CA 90095, USA; Division of Plastic and Reconstructive Surgery, School of Medicine, University of California, Los Angeles, Los Angeles, CA 90095, USA
| | - Jiayu Shi
- Section of Oral Biology, Division of Oral Biology and Medicine, School of Dentistry, University of California, Los Angeles, Los Angeles, CA 90095, USA; Department of Orthodontics and Pediatric Dentistry, School of Dentistry, University of Michigan, Ann Arbor, MI 48109, USA
| | - Hsin Chuan Pan
- Section of Oral Biology, Division of Oral Biology and Medicine, School of Dentistry, University of California, Los Angeles, Los Angeles, CA 90095, USA
| | - Jong Kil Kim
- Section of Oral Biology, Division of Oral Biology and Medicine, School of Dentistry, University of California, Los Angeles, Los Angeles, CA 90095, USA
| | - Luan Tran
- Section of Oral Biology, Division of Oral Biology and Medicine, School of Dentistry, University of California, Los Angeles, Los Angeles, CA 90095, USA
| | - Samuel S Minot
- Microbiome Research Initiative, Fred Hutchinson Cancer Research Center, Seattle, WA 98109, USA
| | - Erik L Hendrickson
- Department of Periodontics, School of Dentistry, University of Washington, Seattle, WA 98195, USA
| | - Eleanor I Lamont
- Department of Periodontics, School of Dentistry, University of Washington, Seattle, WA 98195, USA
| | - Fabian Schulte
- Forsyth Center for Salivary Diagnostics, Department of Applied Oral Sciences, The Forsyth Institute, Cambridge, MA 02142, USA; Harvard School of Dental Medicine, Department of Developmental Biology, Boston, MA 02115, USA
| | - Markus Hardt
- Forsyth Center for Salivary Diagnostics, Department of Applied Oral Sciences, The Forsyth Institute, Cambridge, MA 02142, USA; Harvard School of Dental Medicine, Department of Developmental Biology, Boston, MA 02115, USA
| | - Danielle Stephens
- Multiplex Core, Department of Applied Oral Sciences, The Forsyth Institute, Cambridge, MA 02142, USA
| | - Michele Patel
- Multiplex Core, Department of Applied Oral Sciences, The Forsyth Institute, Cambridge, MA 02142, USA
| | - Alexis Kokaras
- Department of Microbiology, The Forsyth Institute, Cambridge, MA 02142, USA
| | - Louis Stodieck
- BioServe Space Technologies, Department of Aerospace Engineering Sciences, University of Colorado, Boulder, CO 80303, USA
| | - Yasaman Shirazi-Fard
- Bone and Signaling Laboratory, Space Biosciences Division, NASA Ames Research Center, Mail Stop 288-2, Moffett Field, CA 94035, USA
| | - Benjamin Wu
- Department of Bioengineering, School of Engineering, University of California, Los Angeles, Los Angeles, CA 90095, USA; Division of Advanced Prosthodontics, School of Dentistry, University of California, Los Angeles, Los Angeles, CA 90095, USA
| | - Jin Hee Kwak
- Section of Orthodontics, Division of Growth & Development, School of Dentistry, University of California, Los Angeles, Los Angeles, CA 90095, USA
| | - Kang Ting
- Section of Orthodontics, Division of Growth & Development, School of Dentistry, University of California, Los Angeles, Los Angeles, CA 90095, USA
| | - Chia Soo
- Division of Plastic and Reconstructive Surgery, School of Medicine, University of California, Los Angeles, Los Angeles, CA 90095, USA; Department of Orthopedic Surgery, School of Medicine, School of Dentistry, University of California, Los Angeles, Los Angeles, CA 90095, USA
| | - Jeffrey S McLean
- Department of Periodontics, School of Dentistry, University of Washington, Seattle, WA 98195, USA
| | - Xuesong He
- Department of Microbiology, The Forsyth Institute, Cambridge, MA 02142, USA; Department of Oral Medicine, Infection and Immunity, Harvard School of Dental Medicine, Boston, MA 02115, USA
| | - Wenyuan Shi
- Department of Microbiology, The Forsyth Institute, Cambridge, MA 02142, USA.
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Lushnikova I, Kostiuchenko O, Kowalczyk M, Skibo G. mTOR/α-ketoglutarate signaling: impact on brain cell homeostasis under ischemic conditions. Front Cell Neurosci 2023; 17:1132114. [PMID: 37252190 PMCID: PMC10213632 DOI: 10.3389/fncel.2023.1132114] [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: 12/26/2022] [Accepted: 04/24/2023] [Indexed: 05/31/2023] Open
Abstract
The multifunctional molecules mechanistic target of rapamycin (mTOR) and α-ketoglutarate (αKG) are crucial players in the regulatory mechanisms that maintain cell homeostasis in an ever-changing environment. Cerebral ischemia is associated primarily with oxygen-glucose deficiency (OGD) due to circulatory disorders. Upon exceeding a threshold of resistance to OGD, essential pathways of cellular metabolism can be disrupted, leading to damage of brain cells up to the loss of function and death. This mini-review focuses on the role of mTOR and αKG signaling in the metabolic homeostasis of brain cells under OGD conditions. Integral mechanisms concerning the relative cell resistance to OGD and the molecular basis of αKG-mediated neuroprotection are discussed. The study of molecular events associated with cerebral ischemia and endogenous neuroprotection is relevant for improving the effectiveness of therapeutic strategies.
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Affiliation(s)
- Iryna Lushnikova
- Department of Cytology, Bogomoletz Institute of Physiology, National Academy of Sciences of Ukraine, Kyiv, Ukraine
| | - Olha Kostiuchenko
- Department of Cytology, Bogomoletz Institute of Physiology, National Academy of Sciences of Ukraine, Kyiv, Ukraine
- Institute of Biochemistry and Biophysics, Polish Academy of Sciences, Warsaw, Poland
| | - Magdalena Kowalczyk
- Institute of Biochemistry and Biophysics, Polish Academy of Sciences, Warsaw, Poland
| | - Galyna Skibo
- Department of Cytology, Bogomoletz Institute of Physiology, National Academy of Sciences of Ukraine, Kyiv, Ukraine
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Zhang C, Li H, Li J, Hu J, Yang K, Tao L. Oxidative stress: A common pathological state in a high-risk population for osteoporosis. Biomed Pharmacother 2023; 163:114834. [PMID: 37163779 DOI: 10.1016/j.biopha.2023.114834] [Citation(s) in RCA: 23] [Impact Index Per Article: 23.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2023] [Revised: 04/29/2023] [Accepted: 05/01/2023] [Indexed: 05/12/2023] Open
Abstract
Osteoporosis is becoming a major concern in the field of public health. The process of bone loss is insidious and does not directly induce obvious symptoms. Complications indicate an irreversible decrease in bone mass. The high-risk populations of osteoporosis, including postmenopausal women, elderly men, diabetic patients and obese individuals need regular bone mineral density testing and appropriate preventive treatment. However, the primary changes in these populations are different, increasing the difficulty of effective treatment of osteoporosis. Determining the core pathogenesis of osteoporosis helps improve the efficiency and efficacy of treatment among these populations. Oxidative stress is a common pathological state secondary to estrogen deficiency, aging, hyperglycemia and hyperlipemia. In this review, we divided oxidative stress into the direct effect of reactive oxygen species (ROS) and the reduction of antioxidant enzyme activity to discuss their roles in the development of osteoporosis. ROS initiated mitochondrial apoptotic signaling and suppressed osteogenic marker expression to weaken osteogenesis. MAPK and NF-κB signaling pathways mediated the positive effect of ROS on osteoclast differentiation. Antioxidant enzymes not only eliminate the negative effects of ROS, but also directly participate in the regulation of bone metabolism. Additionally, we also described the roles of proinflammatory factors and HIF-1α under the pathophysiological changes of inflammation and hypoxia, which provided a supplement of oxidative stress-induced osteoporosis. In conclusion, our review showed that oxidative stress was a common pathological state in a high-risk population for osteoporosis. Targeted oxidative stress treatment would greatly optimize the therapeutic schedule of various osteoporosis treatments.
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Affiliation(s)
- Chi Zhang
- Department of Orthopedics, First Hospital of China Medical University, No.155 Nanjing North Street, Shenyang, China
| | - Hao Li
- Department of Orthopedics, First Hospital of China Medical University, No.155 Nanjing North Street, Shenyang, China
| | - Jie Li
- Department of Orthopedics, First Hospital of China Medical University, No.155 Nanjing North Street, Shenyang, China
| | - Jiajin Hu
- Health Sciences Institute, China Medical University, Shenyang 110122, China
| | - Keda Yang
- Department of Orthopedics, First Hospital of China Medical University, No.155 Nanjing North Street, Shenyang, China.
| | - Lin Tao
- Department of Orthopedics, First Hospital of China Medical University, No.155 Nanjing North Street, Shenyang, China.
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Li D, Gao Z, Li Q, Liu X, Liu H. Cuproptosis-a potential target for the treatment of osteoporosis. Front Endocrinol (Lausanne) 2023; 14:1135181. [PMID: 37214253 PMCID: PMC10196240 DOI: 10.3389/fendo.2023.1135181] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/13/2023] [Accepted: 04/10/2023] [Indexed: 05/24/2023] Open
Abstract
Osteoporosis is an age-related disease of bone metabolism marked by reduced bone mineral density and impaired bone strength. The disease causes the bones to weaken and break more easily. Osteoclasts participate in bone resorption more than osteoblasts participate in bone formation, disrupting bone homeostasis and leading to osteoporosis. Currently, drug therapy for osteoporosis includes calcium supplements, vitamin D, parathyroid hormone, estrogen, calcitonin, bisphosphates, and other medications. These medications are effective in treating osteoporosis but have side effects. Copper is a necessary trace element in the human body, and studies have shown that it links to the development of osteoporosis. Cuproptosis is a recently proposed new type of cell death. Copper-induced cell death regulates by lipoylated components mediated via mitochondrial ferredoxin 1; that is, copper binds directly to the lipoylated components of the tricarboxylic acid cycle, resulting in lipoylated protein accumulation and subsequent loss of iron-sulfur cluster proteins, leading to proteotoxic stress and eventually cell death. Therapeutic options for tumor disorders include targeting the intracellular toxicity of copper and cuproptosis. The hypoxic environment in bone and the metabolic pathway of glycolysis to provide energy in cells can inhibit cuproptosis, which may promote the survival and proliferation of various cells, including osteoblasts, osteoclasts, effector T cells, and macrophages, thereby mediating the osteoporosis process. As a result, our group tried to explain the relationship between the role of cuproptosis and its essential regulatory genes, as well as the pathological mechanism of osteoporosis and its effects on various cells. This study intends to investigate a new treatment approach for the clinical treatment of osteoporosis that is beneficial to the treatment of osteoporosis.
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Affiliation(s)
- Dinglin Li
- Department of Integrated Traditional Chinese and Western Medicine, Liyuan Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Zhonghua Gao
- Department of Geriatrics, Liyuan Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Qian Li
- Department of Integrated Traditional Chinese and Western Medicine, Liyuan Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Xiangjie Liu
- Department of Geriatrics, Liyuan Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Hao Liu
- Department of Integrated Traditional Chinese and Western Medicine, Liyuan Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
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You J, Liu M, Li M, Zhai S, Quni S, Zhang L, Liu X, Jia K, Zhang Y, Zhou Y. The Role of HIF-1α in Bone Regeneration: A New Direction and Challenge in Bone Tissue Engineering. Int J Mol Sci 2023; 24:ijms24098029. [PMID: 37175732 PMCID: PMC10179302 DOI: 10.3390/ijms24098029] [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: 03/06/2023] [Revised: 04/22/2023] [Accepted: 04/25/2023] [Indexed: 05/15/2023] Open
Abstract
The process of repairing significant bone defects requires the recruitment of a considerable number of cells for osteogenesis-related activities, which implies the consumption of a substantial amount of oxygen and nutrients. Therefore, the limited supply of nutrients and oxygen at the defect site is a vital constraint that affects the regenerative effect, which is closely related to the degree of a well-established vascular network. Hypoxia-inducible factor (HIF-1α), which is an essential transcription factor activated in hypoxic environments, plays a vital role in vascular network construction. HIF-1α, which plays a central role in regulating cartilage and bone formation, induces vascular invasion and differentiation of osteoprogenitor cells to promote and maintain extracellular matrix production by mediating the adaptive response of cells to changes in oxygen levels. However, the application of HIF-1α in bone tissue engineering is still controversial. As such, clarifying the function of HIF-1α in regulating the bone regeneration process is one of the urgent issues that need to be addressed. This review provides insight into the mechanisms of HIF-1α action in bone regeneration and related recent advances. It also describes current strategies for applying hypoxia induction and hypoxia mimicry in bone tissue engineering, providing theoretical support for the use of HIF-1α in establishing a novel and feasible bone repair strategy in clinical settings.
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Affiliation(s)
- Jiaqian You
- Jilin Provincial Key Laboratory of Tooth Development and Bone Remodeling, Hospital of Stomatology, Jilin University, Changchun 130021, China
- School of Stomatology, Jilin University, Changchun 130021, China
| | - Manxuan Liu
- School of Stomatology, Jilin University, Changchun 130021, China
| | - Minghui Li
- School of Stomatology, Jilin University, Changchun 130021, China
| | - Shaobo Zhai
- School of Stomatology, Jilin University, Changchun 130021, China
| | - Sezhen Quni
- School of Stomatology, Jilin University, Changchun 130021, China
| | - Lu Zhang
- School of Stomatology, Jilin University, Changchun 130021, China
| | - Xiuyu Liu
- School of Stomatology, Jilin University, Changchun 130021, China
| | - Kewen Jia
- School of Stomatology, Jilin University, Changchun 130021, China
| | - Yidi Zhang
- Jilin Provincial Key Laboratory of Tooth Development and Bone Remodeling, Hospital of Stomatology, Jilin University, Changchun 130021, China
- School of Stomatology, Jilin University, Changchun 130021, China
| | - Yanmin Zhou
- Jilin Provincial Key Laboratory of Tooth Development and Bone Remodeling, Hospital of Stomatology, Jilin University, Changchun 130021, China
- School of Stomatology, Jilin University, Changchun 130021, China
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Zhang H, Hao J, Hong H, Gu W, Li Z, Sun J, Zhan H, Wei X, Zhou L. Redox signaling regulates the skeletal tissue development and regeneration. Biotechnol Genet Eng Rev 2023:1-24. [PMID: 37043672 DOI: 10.1080/02648725.2023.2199244] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/14/2023]
Abstract
Skeletal tissue development and regeneration in mammals are intricate, multistep, and highly regulated processes. Various signaling pathways have been implicated in the regulation of these processes, including redox. Redox signaling is the signal transduction by electron transfer reactions involving free radicals or related species. Redox homeostasis is essential to cell metabolic states, as the ROS not only regulates cell biological processes but also mediates physiological processes. Following a bone fracture, redox signaling is also triggered to regulate bone healing and regeneration by targeting resident stromal cells, osteoblasts, osteoclasts and endothelial cells. This review will focus on how the redox signaling impact the bone development and bone regeneration.
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Affiliation(s)
- Hao Zhang
- Department of Orthopedics, Shuguang Hospital Affiliated to Shanghai University of Traditional Chinese Medicine, East China, Shanghai, China
| | - Jin Hao
- Department of Orthopedics, Shuguang Hospital Affiliated to Shanghai University of Traditional Chinese Medicine, East China, Shanghai, China
| | - HaiPing Hong
- FangTa Hospital of Traditional Chinese Medicine, Songjiang Branch, Shanghai, East China, China
| | - Wei Gu
- Department of Orthopedics, Shuguang Hospital Affiliated to Shanghai University of Traditional Chinese Medicine, East China, Shanghai, China
| | | | - Jun Sun
- Department of Orthopedics, Shuguang Hospital Affiliated to Shanghai University of Traditional Chinese Medicine, East China, Shanghai, China
| | - Hongsheng Zhan
- Department of Orthopedics, Shuguang Hospital Affiliated to Shanghai University of Traditional Chinese Medicine, East China, Shanghai, China
| | - Xiaoen Wei
- Department of Orthopedics, Shuguang Hospital Affiliated to Shanghai University of Traditional Chinese Medicine, East China, Shanghai, China
| | - Lin Zhou
- Department of Orthopedics, Shuguang Hospital Affiliated to Shanghai University of Traditional Chinese Medicine, East China, Shanghai, China
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Zhang Q, Sun Z, Sun W, Yu B, Liu J, Jiang C, Lu L. Engineering a synergistic antioxidant inhibition nanoplatform to enhance oxidative damage in tumor treatment. Acta Biomater 2023; 158:625-636. [PMID: 36608895 DOI: 10.1016/j.actbio.2022.12.067] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2022] [Revised: 12/10/2022] [Accepted: 12/28/2022] [Indexed: 01/05/2023]
Abstract
The antioxidant system of tumor cells severely impairs reactive oxygen species (ROS)-mediated tumor therapy. Despite extensive attempts to attenuate the antioxidant capacity by eliminating ROS scavengers such as glutathione (GSH), nicotinamide adenine dinucleotide phosphate (NADPH) over-expressed in the tumor microenvironment can regenerate GSH from glutathione disulfide (GSSG), hence weakening ROS-induced oxidative damage. Therefore, engineering a nanoplatform capable of depleting both NADPH and GSH is extremely significant for improving ROS-mediated tumor treatment. Herein, a synergetic antioxidant inhibition strategy is proposed to attenuate intracellular antioxidant capacity for hypoxic tumor therapy. In this context, both porous Prussian blue nanoparticles (PPB NPs) and cisplatin prodrug [cis-Pt (IV)] in the nanoplatform can oxidize GSH to directly reduce GSH levels, while PPB NPs also enable NADPH depletion by peroxidase-mimicking to impair GSH regeneration. Furthermore, PPB NPs with catalase-mimicking activity catalyze H2O2 decomposition to alleviate tumor hypoxia, thus reducing the generation of GSH and boosting singlet oxygen (1O2) production by Chlorin e6 (Ce6) for enhancing oxidative damage. Experimental results prove that the nanoplatform, denoted as PPB-Ce6-Pt, can induce remarkable tumor cells apoptosis and ferroptosis. Importantly, a simple loading method and the use of Food Drug Administration (FDA)-approved materials make PPB-Ce6-Pt have great potential for practical applications. STATEMENT OF SIGNIFICANCE: The antioxidant system in tumor cells disables ROS-mediated tumor therapy. Besides, extensive attempts aim at depleting GSH without considering their regeneration. Therefore, we developed a synergetic strategy to attenuate intracellular antioxidant capacity for hypoxic tumor therapy. PPB-Ce6-Pt nanoplatform could not only directly reduce GSH levels but also deplete NADPH by peroxidase-mimicking to impair GSH regeneration. In addition, PPB-Ce6-Pt nanoplatform could catalyze H2O2 decomposition to alleviate tumor hypoxia, thus reducing the generation of GSH and boosting 1O2 production by Chlorin e6 (Ce6) for increasing oxidative damage. Then, intracellular ROS boost and redox dyshomeostasis induced remarkable tumor cells apoptosis and ferroptosis. Importantly, a simple loading method and the use of biosafety materials made the nanoplatform have great potential for practical applications.
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Affiliation(s)
- Qianqian Zhang
- State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, PR China; University of Science and Technology of China, Hefei 230026, PR China
| | - Zhen Sun
- State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, PR China; University of Science and Technology of China, Hefei 230026, PR China
| | - Wenbo Sun
- State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, PR China
| | - Bin Yu
- State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, PR China
| | - Jianhua Liu
- Department of Radiology, Second Hospital of Jilin University, Changchun 130041, PR China
| | - Chunhuan Jiang
- State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, PR China; University of Science and Technology of China, Hefei 230026, PR China.
| | - Lehui Lu
- State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, PR China; University of Science and Technology of China, Hefei 230026, PR China.
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Wang T, Liu K, Wang J, Xiang G, Hu X, Bai H, Lei W, Tao TH, Feng Y. Spatiotemporal Regulation of Injectable Heterogeneous Silk Gel Scaffolds for Accelerating Guided Vertebral Repair. Adv Healthc Mater 2023; 12:e2202210. [PMID: 36465008 DOI: 10.1002/adhm.202202210] [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: 08/30/2022] [Revised: 11/27/2022] [Indexed: 12/12/2022]
Abstract
Osteoporotic vertebral fracture is jeopardizing the health of the aged population around the world, while the hypoxia microenvironment and oxidative damage of bone defect make it difficult to perform effective tissue regeneration. The balance of oxidative stress and the coupling of vessel and bone ingrowth are critical for bone regeneration. In this study, an injectable heterogeneous silk gel scaffold which can spatiotemporally and sustainedly release bone mesenchymal stem cell-derived small extracellular vesicles, HIF-1α pathway activator, and inhibitor is developed for bone repair and vertebral reinforcement. The initial enhancement of HIF-1α upregulates the expression of VEGF to promote angiogenesis, and the balance of reactive oxygen species level is regulated to effectively eliminate oxidative damage and abnormal microenvironment. The subsequent inhibition of HIF-1α avoids the overexpression of VEGF and vascular overgrowth. Meanwhile, complex macroporous structures and suitable mechanical support can be obtained within the silk gel scaffolds, which will promote in situ bone regeneration. These findings provide a new clinical translation strategy for osteoporotic vertebral augmentation on basis of hypoxia microenvironment improvement.
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Affiliation(s)
- Tianji Wang
- Department of Orthopedics, Xijing Hospital, The Fourth Military Medical University, Xi'an, 710032, China
| | - Keyin Liu
- State Key Laboratory of Transducer Technology, Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences, Shanghai, 200050, China
| | - Jing Wang
- Department of Orthopedics, Xijing Hospital, The Fourth Military Medical University, Xi'an, 710032, China
| | - Geng Xiang
- Department of Orthopedics, Xijing Hospital, The Fourth Military Medical University, Xi'an, 710032, China
| | - Xiaofan Hu
- Department of Orthopedics, Xijing Hospital, The Fourth Military Medical University, Xi'an, 710032, China
| | - Hao Bai
- Department of Orthopedics, Xijing Hospital, The Fourth Military Medical University, Xi'an, 710032, China
| | - Wei Lei
- Department of Orthopedics, Xijing Hospital, The Fourth Military Medical University, Xi'an, 710032, China
| | - Tiger H Tao
- State Key Laboratory of Transducer Technology, Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences, Shanghai, 200050, China.,Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing, 100049, China.,School of Physical Science and Technology, ShanghaiTech University, Shanghai, 200031, China.,Institute of Brain-Intelligence Technology, Zhangjiang Laboratory, Shanghai, 200031, China.,Shanghai Research Center for Brain Science and Brain-Inspired Intelligence, Shanghai, 200031, China
| | - Yafei Feng
- Department of Orthopedics, Xijing Hospital, The Fourth Military Medical University, Xi'an, 710032, China
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Wang J, Zhao B, Che J, Shang P. Hypoxia Pathway in Osteoporosis: Laboratory Data for Clinical Prospects. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2023; 20:3129. [PMID: 36833823 PMCID: PMC9963321 DOI: 10.3390/ijerph20043129] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/01/2022] [Revised: 02/02/2023] [Accepted: 02/04/2023] [Indexed: 05/29/2023]
Abstract
The hypoxia pathway not only regulates the organism to adapt to the special environment, such as short-term hypoxia in the plateau under normal physiological conditions, but also plays an important role in the occurrence and development of various diseases such as cancer, cardiovascular diseases, osteoporosis. Bone, as a special organ of the body, is in a relatively low oxygen environment, in which the expression of hypoxia-inducible factor (HIF)-related molecules maintains the necessary conditions for bone development. Osteoporosis disease with iron overload endangers individuals, families and society, and bone homeostasis disorder is linked to some extent with hypoxia pathway abnormality, so it is urgent to clarify the hypoxia pathway in osteoporosis to guide clinical medication efficiently. Based on this background, using the keywords "hypoxia/HIF, osteoporosis, osteoblasts, osteoclasts, osteocytes, iron/iron metabolism", a matching search was carried out through the Pubmed and Web Of Science databases, then the papers related to this review were screened, summarized and sorted. This review summarizes the relationship and regulation between the hypoxia pathway and osteoporosis (also including osteoblasts, osteoclasts, osteocytes) by arranging the references on the latest research progress, introduces briefly the application of hyperbaric oxygen therapy in osteoporosis symptoms (mechanical stimulation induces skeletal response to hypoxic signal activation), hypoxic-related drugs used in iron accumulation/osteoporosis model study, and also puts forward the prospects of future research.
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Affiliation(s)
- Jianping Wang
- School of Life Sciences, Northwestern Polytechnical University, Xi’an 710072, China
- Key Laboratory for Space Bioscience and Biotechnology, Institute of Special Environmental Biophysics, School of Life Sciences, Northwestern Polytechnical University, Xi’an 710072, China
| | - Bin Zhao
- School of Life Sciences, Northwestern Polytechnical University, Xi’an 710072, China
- Key Laboratory for Space Bioscience and Biotechnology, Institute of Special Environmental Biophysics, School of Life Sciences, Northwestern Polytechnical University, Xi’an 710072, China
| | - Jingmin Che
- School of Life Sciences, Northwestern Polytechnical University, Xi’an 710072, China
- Key Laboratory for Space Bioscience and Biotechnology, Institute of Special Environmental Biophysics, School of Life Sciences, Northwestern Polytechnical University, Xi’an 710072, China
| | - Peng Shang
- School of Life Sciences, Northwestern Polytechnical University, Xi’an 710072, China
- Key Laboratory for Space Bioscience and Biotechnology, Institute of Special Environmental Biophysics, School of Life Sciences, Northwestern Polytechnical University, Xi’an 710072, China
- Research & Development Institute in Shenzhen, Northwestern Polytechnical University, Shenzhen 518057, China
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Sadeghi N, Boissonneault G, Tavalaee M, Nasr-Esfahani MH. Oxidative versus reductive stress: a delicate balance for sperm integrity. Syst Biol Reprod Med 2023; 69:20-31. [PMID: 36215401 DOI: 10.1080/19396368.2022.2119181] [Citation(s) in RCA: 15] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
Abstract
Despite the long-standing notion of "oxidative stress," as the main mediator of many diseases including male infertility induced by increased reactive oxygen species (ROS), recent evidence suggests that ROS levels are also increased by "reductive stress," due to over-accumulation of reductants. Damaging mechanisms, like guanidine oxidation followed by DNA fragmentation, could be observed following reductive stress. Excessive accumulation of the reductants may arise from excess dietary supplementation over driving the one-carbon cycle and transsulfuration pathway, overproduction of NADPH through the pentose phosphate pathway (PPP), elevated levels of GSH leading to impaired mitochondrial oxidation, or as a result NADH accumulation. In addition, lower availability of oxidized reductants like NAD+, oxidized glutathione (GSSG), and oxidized thioredoxins (Trx-S2) induce electron leakage leading to the formation of hydrogen peroxide (H2O2). In addition, a lower level of NAD+ impairs poly (ADP-ribose) polymerase (PARP)-regulated DNA repair essential for proper chromatin integrity of sperm. Because of the limited studies regarding the possible involvement of reductive stress, antioxidant therapy remains a central approach in the treatment of male infertility. This review put forward the concept of reductive stress and highlights the potential role played by reductive vs oxidative stress at pre-and post-testicular levels and considering dietary supplementation.
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Affiliation(s)
- Niloofar Sadeghi
- Department of Biochemistry and Functional Genomics, Université de Sherbrooke, Sherbrooke, QC, Canada.,Department of Animal Biotechnology, Reproductive Biomedicine Research Center, Royan Institute for Biotechnology, ACECR, Isfahan, Iran
| | - Guylain Boissonneault
- Department of Biochemistry and Functional Genomics, Université de Sherbrooke, Sherbrooke, QC, Canada
| | - Marziyeh Tavalaee
- Department of Animal Biotechnology, Reproductive Biomedicine Research Center, Royan Institute for Biotechnology, ACECR, Isfahan, Iran
| | - Mohammad Hossein Nasr-Esfahani
- Department of Animal Biotechnology, Reproductive Biomedicine Research Center, Royan Institute for Biotechnology, ACECR, Isfahan, Iran
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40
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Luo G, Wosinski P, Salazar-Noratto GE, Bensidhoum M, Bizios R, Marashi SA, Potier E, Sheng P, Petite H. Glucose Metabolism: Optimizing Regenerative Functionalities of Mesenchymal Stromal Cells Postimplantation. TISSUE ENGINEERING. PART B, REVIEWS 2023; 29:47-61. [PMID: 35754335 DOI: 10.1089/ten.teb.2022.0063] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
Mesenchymal stromal cells (MSCs) are considered promising candidates for regenerative medicine applications. Their clinical performance postimplantation, however, has been disappointing. This lack of therapeutic efficacy is most likely due to suboptimal formulations of MSC-containing material constructs. Tissue engineers, therefore, have developed strategies addressing/incorporating optimized cell, microenvironmental, biochemical, and biophysical cues/stimuli to enhance MSC-containing construct performance. Such approaches have had limited success because they overlooked that maintenance of MSC viability after implantation for a sufficient time is necessary for MSCs to develop their regenerative functionalities fully. Following a brief overview of glucose metabolism and regulation in MSCs, the present literature review includes recent pertinent findings that challenge old paradigms and notions. We hereby report that glucose is the primary energy substrate for MSCs, provides precursors for biomass generation, and regulates MSC functions, including proliferation and immunosuppressive properties. More importantly, glucose metabolism is central in controlling in vitro MSC expansion, in vivo MSC viability, and MSC-mediated angiogenesis postimplantation when addressing MSC-based therapies. Meanwhile, in silico models are highlighted for predicting the glucose needs of MSCs in specific regenerative medicine settings, which will eventually enable tissue engineers to design viable and potent tissue constructs. This new knowledge should be incorporated into developing novel effective MSC-based therapies. Impact statement The clinical use of mesenchymal stromal cells (MSCs) has been unsatisfactory due to the inability of MSCs to survive and be functional after implantation for sufficient periods to mediate directly or indirectly a successful regenerative tissue response. The present review summarizes the endeavors in the past, but, most importantly, reports the latest findings that elucidate underlying mechanisms and identify glucose metabolism as the crucial parameter in MSC survival and the subsequent functions pertinent to new tissue formation of importance in tissue regeneration applications. These latest findings justify further basic research and the impetus for developing new strategies to improve the modalities and efficacy of MSC-based therapies.
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Affiliation(s)
- Guotian Luo
- Université Paris Cité, CNRS, INSERM, B3OA, Paris, France.,École Nationale Vétérinaire d'Alfort, B3OA, Maisons-Alfort, France
| | - Pauline Wosinski
- Université Paris Cité, CNRS, INSERM, B3OA, Paris, France.,École Nationale Vétérinaire d'Alfort, B3OA, Maisons-Alfort, France
| | - Giuliana E Salazar-Noratto
- Université Paris Cité, CNRS, INSERM, B3OA, Paris, France.,École Nationale Vétérinaire d'Alfort, B3OA, Maisons-Alfort, France
| | - Morad Bensidhoum
- Université Paris Cité, CNRS, INSERM, B3OA, Paris, France.,École Nationale Vétérinaire d'Alfort, B3OA, Maisons-Alfort, France
| | - Rena Bizios
- Department of Biomedical Engineering, The University of Texas at San Antonio, San Antonio, Texas, USA
| | - Sayed-Amir Marashi
- Department of Biotechnology, College of Science, University of Tehran, Tehran, Iran
| | - Esther Potier
- Université Paris Cité, CNRS, INSERM, B3OA, Paris, France.,École Nationale Vétérinaire d'Alfort, B3OA, Maisons-Alfort, France
| | - Puyi Sheng
- Department of Joint Surgery, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Hervé Petite
- Université Paris Cité, CNRS, INSERM, B3OA, Paris, France.,École Nationale Vétérinaire d'Alfort, B3OA, Maisons-Alfort, France
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41
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Wang G, Sweren E, Andrews W, Li Y, Chen J, Xue Y, Wier E, Alphonse MP, Luo L, Miao Y, Chen R, Zeng D, Lee S, Li A, Dare E, Kim D, Archer NK, Reddy SK, Resar L, Hu Z, Grice EA, Kane MA, Garza LA. Commensal microbiome promotes hair follicle regeneration by inducing keratinocyte HIF-1α signaling and glutamine metabolism. SCIENCE ADVANCES 2023; 9:eabo7555. [PMID: 36598999 PMCID: PMC9812389 DOI: 10.1126/sciadv.abo7555] [Citation(s) in RCA: 14] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/23/2022] [Accepted: 11/23/2022] [Indexed: 05/06/2023]
Abstract
Tissue injury induces metabolic changes in stem cells, which likely modulate regeneration. Using a model of organ regeneration called wound-induced hair follicle neogenesis (WIHN), we identified skin-resident bacteria as key modulators of keratinocyte metabolism, demonstrating a positive correlation between bacterial load, glutamine metabolism, and regeneration. Specifically, through comprehensive multiomic analysis and single-cell RNA sequencing in murine skin, we show that bacterially induced hypoxia drives increased glutamine metabolism in keratinocytes with attendant enhancement of skin and hair follicle regeneration. In human skin wounds, topical broad-spectrum antibiotics inhibit glutamine production and are partially responsible for reduced healing. These findings reveal a conserved and coherent physiologic context in which bacterially induced metabolic changes improve the tolerance of stem cells to damage and enhance regenerative capacity. This unexpected proregenerative modulation of metabolism by the skin microbiome in both mice and humans suggests important methods for enhancing regeneration after injury.
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Affiliation(s)
- Gaofeng Wang
- Department of Plastic and Aesthetic Surgery, Nanfang Hospital of Southern Medical University, Guangzhou, Guangdong Province 510515, China
- Department of Dermatology, Johns Hopkins University School of Medicine, Baltimore, MD 21210, USA
| | - Evan Sweren
- Department of Dermatology, Johns Hopkins University School of Medicine, Baltimore, MD 21210, USA
| | - William Andrews
- Department of Pharmaceutical Sciences, School of Pharmacy Mass Spectrometry Center, University of Maryland, Baltimore, MD 21201, USA
| | - Yue Li
- Department of Plastic and Aesthetic Surgery, Nanfang Hospital of Southern Medical University, Guangzhou, Guangdong Province 510515, China
| | - Junjun Chen
- Department of Dermatology, Johns Hopkins University School of Medicine, Baltimore, MD 21210, USA
| | - Yingchao Xue
- Department of Dermatology, Johns Hopkins University School of Medicine, Baltimore, MD 21210, USA
| | - Eric Wier
- Department of Dermatology, Johns Hopkins University School of Medicine, Baltimore, MD 21210, USA
| | - Martin P. Alphonse
- Department of Dermatology, Johns Hopkins University School of Medicine, Baltimore, MD 21210, USA
| | - Li Luo
- Departments of Medicine, Oncology, Pathology and Institute for Cellular Engineering, Johns Hopkins University School of Medicine, Baltimore, MD 21210, USA
| | - Yong Miao
- Department of Plastic and Aesthetic Surgery, Nanfang Hospital of Southern Medical University, Guangzhou, Guangdong Province 510515, China
| | - Ruosi Chen
- Department of Plastic and Aesthetic Surgery, Nanfang Hospital of Southern Medical University, Guangzhou, Guangdong Province 510515, China
- Department of Dermatology, Johns Hopkins University School of Medicine, Baltimore, MD 21210, USA
| | - Dongqiang Zeng
- Department of Oncology, Nanfang Hospital of Southern Medical University, Guangzhou, Guangdong Province 510515, China
| | - Sam Lee
- Department of Dermatology, Johns Hopkins University School of Medicine, Baltimore, MD 21210, USA
| | - Ang Li
- Department of Dermatology, Johns Hopkins University School of Medicine, Baltimore, MD 21210, USA
| | - Erika Dare
- Department of Dermatology, Johns Hopkins University School of Medicine, Baltimore, MD 21210, USA
| | - Dongwon Kim
- Department of Dermatology, Johns Hopkins University School of Medicine, Baltimore, MD 21210, USA
- Department of Bio-Chemical Engineering, Dongseo University, Busan, Republic of Korea
| | - Nathan K. Archer
- Department of Dermatology, Johns Hopkins University School of Medicine, Baltimore, MD 21210, USA
| | - Sashank K. Reddy
- Department of Dermatology, Johns Hopkins University School of Medicine, Baltimore, MD 21210, USA
- Department of Plastic and Reconstructive Surgery, Johns Hopkins School of Medicine, Baltimore, MD 21287, USA
| | - Linda Resar
- Departments of Medicine, Oncology, Pathology and Institute for Cellular Engineering, Johns Hopkins University School of Medicine, Baltimore, MD 21210, USA
| | - Zhiqi Hu
- Department of Plastic and Aesthetic Surgery, Nanfang Hospital of Southern Medical University, Guangzhou, Guangdong Province 510515, China
| | - Elizabeth A. Grice
- Department of Dermatology and Microbiology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Maureen A. Kane
- Department of Pharmaceutical Sciences, School of Pharmacy Mass Spectrometry Center, University of Maryland, Baltimore, MD 21201, USA
| | - Luis A. Garza
- Department of Dermatology, Johns Hopkins University School of Medicine, Baltimore, MD 21210, USA
- Department of Cell Biology, Johns Hopkins University School of Medicine, Baltimore, MD 21210, USA
- Department of Oncology, Johns Hopkins University School of Medicine, Baltimore, MD 21210, USA
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42
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Li Q, Wang R, Zhang Z, Wang H, Lu X, Zhang J, Kong APS, Tian XY, Chan HF, Chung ACK, Cheng JCY, Jiang Q, Lee WYW. Sirt3 mediates the benefits of exercise on bone in aged mice. Cell Death Differ 2023; 30:152-167. [PMID: 36153410 PMCID: PMC9883264 DOI: 10.1038/s41418-022-01053-5] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2021] [Revised: 08/16/2022] [Accepted: 08/22/2022] [Indexed: 02/01/2023] Open
Abstract
Exercise in later life is important for bone health and delays the progression of osteoporotic bone loss. Osteocytes are the major bone cells responsible for transforming mechanical stimuli into cellular signals through their highly specialized lacunocanalicular networks (LCN). Osteocyte activity and LCN degenerate with aging, thus might impair the effectiveness of exercise on bone health; however, the underlying mechanism and clinical implications remain elusive. Herein, we showed that deletion of Sirt3 in osteocytes could impair the formation of osteocyte dendritic processes and inhibit bone gain in response to exercise in vivo. Mechanistic studies revealed that Sirt3 regulates E11/gp38 through the protein kinase A (PKA)/cAMP response element-binding protein (CREB) signaling pathway. Additionally, the Sirt3 activator honokiol enhanced the sensitivity of osteocytes to fluid shear stress in vitro, and intraperitoneal injection of honokiol reduced bone loss in aged mice in a dose-dependent manner. Collectively, Sirt3 in osteocytes regulates bone mass and mechanical responses through the regulation of E11/gp38. Therefore, targeting Sirt3 could be a novel therapeutic strategy to prevent age-related bone loss and augment the benefits of exercise on the senescent skeleton.
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Affiliation(s)
- Qiangqiang Li
- Department of Orthopaedics and Traumatology, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong, China
- State Key Laboratory of Pharmaceutical Biotechnology, Division of Sports Medicine and Adult Reconstructive Surgery, Department of Orthopedic Surgery, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, 321 Zhongshan Road, Nanjing, 210008, Jiangsu, PR China
- Li Ka Shing Institute of Health Sciences, The Chinese University of Hong Kong, Prince of Wales Hospital, Hong Kong, China
| | - Rongliang Wang
- Department of Orthopaedics and Traumatology, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong, China
- Li Ka Shing Institute of Health Sciences, The Chinese University of Hong Kong, Prince of Wales Hospital, Hong Kong, China
- SH Ho Scoliosis Research Laboratory, Joint Scoliosis Research Center of the Chinese University of Hong Kong and Nanjing University, The Chinese University of Hong Kong, Hong Kong, China
| | - Zhe Zhang
- Department of Orthopaedics and Traumatology, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong, China
- Li Ka Shing Institute of Health Sciences, The Chinese University of Hong Kong, Prince of Wales Hospital, Hong Kong, China
- SH Ho Scoliosis Research Laboratory, Joint Scoliosis Research Center of the Chinese University of Hong Kong and Nanjing University, The Chinese University of Hong Kong, Hong Kong, China
| | - Haixing Wang
- Department of Orthopaedics and Traumatology, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong, China
| | - Xiaomin Lu
- Department of Orthopaedics and Traumatology, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong, China
- Li Ka Shing Institute of Health Sciences, The Chinese University of Hong Kong, Prince of Wales Hospital, Hong Kong, China
- Department of Applied Biology and Chemical Technology, The Hong Kong Polytechnic University, Hong Kong, China
| | - Jiajun Zhang
- Department of Orthopaedics and Traumatology, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong, China
- SH Ho Scoliosis Research Laboratory, Joint Scoliosis Research Center of the Chinese University of Hong Kong and Nanjing University, The Chinese University of Hong Kong, Hong Kong, China
| | - Alice Pik-Shan Kong
- Department of Medicine and Therapeutics, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong, China
| | - Xiao Yu Tian
- School of Biomedical Sciences, The Chinese University of Hong Kong, Hong Kong, China
| | - Hon-Fai Chan
- Institute for Tissue Engineering and Regenerative Medicine, The Chinese University of Hong Kong, Shatin, Hong Kong, China
| | - Arthur Chi-Kong Chung
- Department of Medicine and Therapeutics, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong, China
| | - Jack Chun-Yiu Cheng
- Department of Orthopaedics and Traumatology, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong, China
- SH Ho Scoliosis Research Laboratory, Joint Scoliosis Research Center of the Chinese University of Hong Kong and Nanjing University, The Chinese University of Hong Kong, Hong Kong, China
| | - Qing Jiang
- State Key Laboratory of Pharmaceutical Biotechnology, Division of Sports Medicine and Adult Reconstructive Surgery, Department of Orthopedic Surgery, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, 321 Zhongshan Road, Nanjing, 210008, Jiangsu, PR China.
| | - Wayne Yuk-Wai Lee
- Department of Orthopaedics and Traumatology, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong, China.
- Li Ka Shing Institute of Health Sciences, The Chinese University of Hong Kong, Prince of Wales Hospital, Hong Kong, China.
- SH Ho Scoliosis Research Laboratory, Joint Scoliosis Research Center of the Chinese University of Hong Kong and Nanjing University, The Chinese University of Hong Kong, Hong Kong, China.
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43
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Kodama J, Wilkinson KJ, Otsuru S. Nutrient metabolism of the nucleus pulposus: A literature review. NORTH AMERICAN SPINE SOCIETY JOURNAL 2022; 13:100191. [PMID: 36590450 PMCID: PMC9801222 DOI: 10.1016/j.xnsj.2022.100191] [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: 11/10/2022] [Revised: 12/07/2022] [Accepted: 12/07/2022] [Indexed: 12/15/2022]
Abstract
Cells take in, consume, and synthesize nutrients for numerous physiological functions. This includes not only energy production but also macromolecule biosynthesis, which will further influence cellular signaling, redox homeostasis, and cell fate commitment. Therefore, alteration in cellular nutrient metabolism is associated with pathological conditions. Intervertebral discs, particularly the nucleus pulposus (NP), are avascular and exhibit unique metabolic preferences. Clinical and preclinical studies have indicated a correlation between intervertebral degeneration (IDD) and systemic metabolic diseases such as diabetes, obesity, and dyslipidemia. However, a lack of understanding of the nutrient metabolism of NP cells is masking the underlying mechanism. Indeed, although previous studies indicated that glucose metabolism is essential for NP cells, the downstream metabolic pathways remain unknown, and the potential role of other nutrients, like amino acids and lipids, is understudied. In this literature review, we summarize the current understanding of nutrient metabolism in NP cells and discuss other potential metabolic pathways by referring to a human NP transcriptomic dataset deposited to the Gene Expression Omnibus, which can provide us hints for future studies of nutrient metabolism in NP cells and novel therapies for IDD.
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Affiliation(s)
- Joe Kodama
- Corresponding authors at: 670 W Baltimore St. HSFIII 7173, Baltimore, MD 21201, USA.
| | | | - Satoru Otsuru
- Corresponding authors at: 670 W Baltimore St. HSFIII 7173, Baltimore, MD 21201, USA.
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44
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Abstract
Amino acid metabolism regulates essential cellular functions, not only by fueling protein synthesis, but also by supporting the biogenesis of nucleotides, redox factors and lipids. Amino acids are also involved in tricarboxylic acid cycle anaplerosis, epigenetic modifications, next to synthesis of neurotransmitters and hormones. As such, amino acids contribute to a broad range of cellular processes such as proliferation, matrix synthesis and intercellular communication, which are all critical for skeletal cell functioning. Here we summarize recent work elucidating how amino acid metabolism supports and regulates skeletal cell function during bone growth and homeostasis, as well as during skeletal disease. The most extensively studied amino acid is glutamine, and osteoblasts and chondrocytes rely heavily on this non-essential amino acid during for their functioning and differentiation. Regulated by lineage-specific transcription factors such as SOX9 and osteoanabolic agents such as parathyroid hormone or WNT, glutamine metabolism has a wide range of metabolic roles, as it fuels anabolic processes by producing nucleotides and non-essential amino acids, maintains redox balance by generating the antioxidant glutathione and regulates cell-specific gene expression via epigenetic mechanisms. We also describe how other amino acids affect skeletal cell functions, although further work is needed to fully understand their effect. The increasing number of studies using stable isotope labelling in several skeletal cell types at various stages of differentiation, together with conditional inactivation of amino acid transporters or enzymes in mouse models, will allow us to obtain a more complete picture of amino acid metabolism in skeletal cells.
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Affiliation(s)
| | | | - Steve Stegen
- Corresponding author at: Clinical and Experimental Endocrinology, KU Leuven, O&N1bis, Herestraat 49 box 902, 3000 Leuven, Belgium.
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45
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Lin C, Yang Q, Guo D, Xie J, Yang YS, Chaugule S, DeSouza N, Oh WT, Li R, Chen Z, John AA, Qiu Q, Zhu LJ, Greenblatt MB, Ghosh S, Li S, Gao G, Haynes C, Emerson CP, Shim JH. Impaired mitochondrial oxidative metabolism in skeletal progenitor cells leads to musculoskeletal disintegration. Nat Commun 2022; 13:6869. [PMID: 36369293 PMCID: PMC9652319 DOI: 10.1038/s41467-022-34694-8] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2022] [Accepted: 10/27/2022] [Indexed: 11/13/2022] Open
Abstract
Although skeletal progenitors provide a reservoir for bone-forming osteoblasts, the major energy source for their osteogenesis remains unclear. Here, we demonstrate a requirement for mitochondrial oxidative phosphorylation in the osteogenic commitment and differentiation of skeletal progenitors. Deletion of Evolutionarily Conserved Signaling Intermediate in Toll pathways (ECSIT) in skeletal progenitors hinders bone formation and regeneration, resulting in skeletal deformity, defects in the bone marrow niche and spontaneous fractures followed by persistent nonunion. Upon skeletal fracture, Ecsit-deficient skeletal progenitors migrate to adjacent skeletal muscle causing muscle atrophy. These phenotypes are intrinsic to ECSIT function in skeletal progenitors, as little skeletal abnormalities were observed in mice lacking Ecsit in committed osteoprogenitors or mature osteoblasts. Mechanistically, Ecsit deletion in skeletal progenitors impairs mitochondrial complex assembly and mitochondrial oxidative phosphorylation and elevates glycolysis. ECSIT-associated skeletal phenotypes were reversed by in vivo reconstitution with wild-type ECSIT expression, but not a mutant displaying defective mitochondrial localization. Collectively, these findings identify mitochondrial oxidative phosphorylation as the prominent energy-driving force for osteogenesis of skeletal progenitors, governing musculoskeletal integrity.
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Affiliation(s)
- Chujiao Lin
- Department of Medicine/Division of Rheumatology, UMass Chan Medical School, Worcester, MA, USA
| | - Qiyuan Yang
- Department of Molecular, Cell and Cancer Biology, UMass Chan Medical School, Worcester, MA, USA
| | - Dongsheng Guo
- Department of Neurology, UMass Chan Medical School, Worcester, MA, USA
| | - Jun Xie
- Horae Gene Therapy Center, UMass Chan Medical School, Worcester, MA, USA
- Department of Microbiology and Physiological Systems, UMass Chan Medical School, Worcester, MA, USA
- Viral Vector Core, UMass Chan Medical School, Worcester, MA, USA
| | - Yeon-Suk Yang
- Department of Medicine/Division of Rheumatology, UMass Chan Medical School, Worcester, MA, USA
| | - Sachin Chaugule
- Department of Medicine/Division of Rheumatology, UMass Chan Medical School, Worcester, MA, USA
| | - Ngoc DeSouza
- Department of Medicine/Division of Rheumatology, UMass Chan Medical School, Worcester, MA, USA
| | - Won-Taek Oh
- Department of Medicine/Division of Rheumatology, UMass Chan Medical School, Worcester, MA, USA
| | - Rui Li
- Department of Molecular, Cell and Cancer Biology, UMass Chan Medical School, Worcester, MA, USA
| | - Zhihao Chen
- Department of Medicine/Division of Rheumatology, UMass Chan Medical School, Worcester, MA, USA
| | - Aijaz A John
- Department of Medicine/Division of Rheumatology, UMass Chan Medical School, Worcester, MA, USA
| | - Qiang Qiu
- Department of Medicine/Division of Rheumatology, UMass Chan Medical School, Worcester, MA, USA
| | - Lihua Julie Zhu
- Department of Molecular, Cell and Cancer Biology, UMass Chan Medical School, Worcester, MA, USA
| | - Matthew B Greenblatt
- Department of Pathology and Laboratory Medicine, Weill Cornell Medical College, Cornell University, New York, NY, USA
- Research Divisions, Hospital for Special Surgery, New York, NY, USA
| | - Sankar Ghosh
- Department of Microbiology and Immunology, Columbia University Vagelos College of Physicians and Surgeons, New York, NY, USA
| | - Shaoguang Li
- Department of Medicine/Division of Rheumatology, UMass Chan Medical School, Worcester, MA, USA
| | - Guangping Gao
- Horae Gene Therapy Center, UMass Chan Medical School, Worcester, MA, USA
- Department of Microbiology and Physiological Systems, UMass Chan Medical School, Worcester, MA, USA
- Viral Vector Core, UMass Chan Medical School, Worcester, MA, USA
- Li Weibo Institute for Rare Diseases Research, UMass Chan Medical School, Worcester, MA, USA
| | - Cole Haynes
- Department of Molecular, Cell and Cancer Biology, UMass Chan Medical School, Worcester, MA, USA
| | - Charles P Emerson
- Department of Neurology, UMass Chan Medical School, Worcester, MA, USA
- Wellstone Muscular Dystrophy Program, UMass Chan Medical School, Worcester, MA, USA
| | - Jae-Hyuck Shim
- Department of Medicine/Division of Rheumatology, UMass Chan Medical School, Worcester, MA, USA.
- Horae Gene Therapy Center, UMass Chan Medical School, Worcester, MA, USA.
- Li Weibo Institute for Rare Diseases Research, UMass Chan Medical School, Worcester, MA, USA.
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Iacobini C, Vitale M, Haxhi J, Pesce C, Pugliese G, Menini S. Mutual Regulation between Redox and Hypoxia-Inducible Factors in Cardiovascular and Renal Complications of Diabetes. Antioxidants (Basel) 2022; 11:2183. [PMID: 36358555 PMCID: PMC9686572 DOI: 10.3390/antiox11112183] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2022] [Revised: 10/31/2022] [Accepted: 11/02/2022] [Indexed: 08/30/2023] Open
Abstract
Oxidative stress and hypoxia-inducible factors (HIFs) have been implicated in the pathogenesis of diabetic cardiovascular and renal diseases. Reactive oxygen species (ROS) mediate physiological and pathophysiological processes, being involved in the modulation of cell signaling, differentiation, and survival, but also in cyto- and genotoxic damage. As master regulators of glycolytic metabolism and oxygen homeostasis, HIFs have been largely studied for their role in cell survival in hypoxic conditions. However, in addition to hypoxia, other stimuli can regulate HIFs stability and transcriptional activity, even in normoxic conditions. Among these, a regulatory role of ROS and their byproducts on HIFs, particularly the HIF-1α isoform, has received growing attention in recent years. On the other hand, HIF-1α and HIF-2α exert mutually antagonistic effects on oxidative damage. In diabetes, redox-mediated HIF-1α deregulation contributes to the onset and progression of cardiovascular and renal complications, and recent findings suggest that deranged HIF signaling induced by hyperglycemia and other cellular stressors associated with metabolic disorders may cause mitochondrial dysfunction, oxidative stress, and inflammation. Understanding the mechanisms of mutual regulation between HIFs and redox factors and the specific contribution of the two main isoforms of HIF-α is fundamental to identify new therapeutic targets for vascular complications of diabetes.
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Affiliation(s)
- Carla Iacobini
- Department of Clinical and Molecular Medicine, “La Sapienza” University, 00189 Rome, Italy
| | - Martina Vitale
- Department of Clinical and Molecular Medicine, “La Sapienza” University, 00189 Rome, Italy
| | - Jonida Haxhi
- Department of Clinical and Molecular Medicine, “La Sapienza” University, 00189 Rome, Italy
| | - Carlo Pesce
- Department of Neurosciences, Rehabilitation, Ophthalmology, Genetic and Maternal Infantile Sciences (DINOGMI), Department of Excellence of MIUR, University of Genoa Medical School, 16132 Genoa, Italy
| | - Giuseppe Pugliese
- Department of Clinical and Molecular Medicine, “La Sapienza” University, 00189 Rome, Italy
| | - Stefano Menini
- Department of Clinical and Molecular Medicine, “La Sapienza” University, 00189 Rome, Italy
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47
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Paclitaxel Induces the Apoptosis of Prostate Cancer Cells via ROS-Mediated HIF-1α Expression. Molecules 2022; 27:molecules27217183. [PMID: 36364008 PMCID: PMC9654100 DOI: 10.3390/molecules27217183] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2022] [Revised: 10/10/2022] [Accepted: 10/12/2022] [Indexed: 11/29/2022] Open
Abstract
Prostate cancer (PCa) is the most common malignancy to endanger the health of male genitourinary system. Clinically, paclitaxel (PTX) (C47H51NO14), a diterpene alkaloid, is commonly used as an effective natural antineoplastic drug during the treatment of PCa. However, the mechanism and pathway involved in the function of PTX are poorly understood. In the current study, we employed the CCK-8 assay, revealing that PTX can inhibit the survival and induce the apoptosis of PC3M cells (a human prostate cancer cell line) in a concentration-dependent manner. Reactive oxygen species (ROS), as a metabolic intermediate produced by the mitochondrial respiratory chain, are highly accumulated under the PTX treatment, which results in a sharp decrease of the mitochondrial membrane potential in PC3M cells. Additionally, the migration and invasion of PC3M cells are weakened due to PTX treatment. Further analysis reveals that N-acetylcysteine (NAC), which functions as an antioxidant, not only rescues the decreased mitochondrial membrane potential induced by the abnormal ROS level, but also restores the migration and invasion of PC3M cells. In a subsequent exploration of the detailed mechanism, we found that hypoxia-inducible factor (HIF)-1α works as a downstream gene that can respond to the increased ROS in PC3M cells. Under PTX treatment, the expression levels of HIF-1α mRNA and protein are significantly increased, which stimulate the activation of JNK/caspase-3 signaling and promote the apoptosis of PC3M cells. In summary, we demonstrate that PTX regulates the expression of HIF-1α through increased ROS accumulation, thereby promoting the activation of JNK/caspase-3 pathway to induce the apoptosis of PCa cells. This study provides new insights into the mechanism of antineoplastic action of taxanes and unveils the clinical benefit of the ROS-HIF-1α signaling pathway, which may offer a potential therapeutic target to prevent the development of PCa.
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Vlashi R, Zhang X, Wu M, Chen G. Wnt signaling: essential roles in osteoblast differentiation, bone metabolism and therapeutic implications for bone and skeletal disorders. Genes Dis 2022. [DOI: 10.1016/j.gendis.2022.07.011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/16/2022] Open
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Tournaire G, Loopmans S, Stegen S, Rinaldi G, Eelen G, Torrekens S, Moermans K, Carmeliet P, Ghesquière B, Thienpont B, Fendt SM, van Gastel N, Carmeliet G. Skeletal progenitors preserve proliferation and self-renewal upon inhibition of mitochondrial respiration by rerouting the TCA cycle. Cell Rep 2022; 40:111105. [PMID: 35905715 PMCID: PMC9380255 DOI: 10.1016/j.celrep.2022.111105] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2021] [Revised: 04/13/2022] [Accepted: 06/25/2022] [Indexed: 11/25/2022] Open
Abstract
A functional electron transport chain (ETC) is crucial for supporting bioenergetics and biosynthesis. Accordingly, ETC inhibition decreases proliferation in cancer cells but does not seem to impair stem cell proliferation. However, it remains unclear how stem cells metabolically adapt. In this study, we show that pharmacological inhibition of complex III of the ETC in skeletal stem and progenitor cells induces glycolysis side pathways and reroutes the tricarboxylic acid (TCA) cycle to regenerate NAD+ and preserve cell proliferation. These metabolic changes also culminate in increased succinate and 2-hydroxyglutarate levels that inhibit Ten-eleven translocation (TET) DNA demethylase activity, thereby preserving self-renewal and multilineage potential. Mechanistically, mitochondrial malate dehydrogenase and reverse succinate dehydrogenase activity proved to be essential for the metabolic rewiring in response to ETC inhibition. Together, these data show that the metabolic plasticity of skeletal stem and progenitor cells allows them to bypass ETC blockade and preserve their self-renewal. Skeletal stem/progenitor cells can proliferate upon electron transport chain blockade Succinate dehydrogenase is reversed with fumarate functioning as electron acceptor Pyruvate and aspartate are critical for NAD+ regeneration and proliferation Metabolic changes prevent DNA demethylation and preserve self-renewal
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Affiliation(s)
- Guillaume Tournaire
- Laboratory of Clinical and Experimental Endocrinology, Department of Chronic Diseases and Metabolism, KU Leuven, O&N1bis Herestraat 49, 3000 Leuven, Belgium; Prometheus, Division of Skeletal Tissue Engineering, KU Leuven, Leuven, Belgium
| | - Shauni Loopmans
- Laboratory of Clinical and Experimental Endocrinology, Department of Chronic Diseases and Metabolism, KU Leuven, O&N1bis Herestraat 49, 3000 Leuven, Belgium; Prometheus, Division of Skeletal Tissue Engineering, KU Leuven, Leuven, Belgium
| | - Steve Stegen
- Laboratory of Clinical and Experimental Endocrinology, Department of Chronic Diseases and Metabolism, KU Leuven, O&N1bis Herestraat 49, 3000 Leuven, Belgium; Prometheus, Division of Skeletal Tissue Engineering, KU Leuven, Leuven, Belgium
| | - Gianmarco Rinaldi
- Laboratory of Cellular Metabolism and Metabolic Regulation, VIB Center for Cancer Biology, Leuven, Belgium; Laboratory of Cellular Metabolism and Metabolic Regulation, Department of Oncology and Leuven Cancer Institute, KU Leuven, Leuven, Belgium
| | - Guy Eelen
- Laboratory of Angiogenesis and Vascular Metabolism, VIB Center for Cancer Biology, Leuven, Belgium; Laboratory of Angiogenesis and Vascular Metabolism, Department of Oncology and Leuven Cancer Institute, KU Leuven, Leuven, Belgium
| | - Sophie Torrekens
- Laboratory of Clinical and Experimental Endocrinology, Department of Chronic Diseases and Metabolism, KU Leuven, O&N1bis Herestraat 49, 3000 Leuven, Belgium
| | - Karen Moermans
- Laboratory of Clinical and Experimental Endocrinology, Department of Chronic Diseases and Metabolism, KU Leuven, O&N1bis Herestraat 49, 3000 Leuven, Belgium
| | - Peter Carmeliet
- Laboratory of Angiogenesis and Vascular Metabolism, VIB Center for Cancer Biology, Leuven, Belgium; Laboratory of Angiogenesis and Vascular Metabolism, Department of Oncology and Leuven Cancer Institute, KU Leuven, Leuven, Belgium
| | - Bart Ghesquière
- Metabolomics Expertise Center, Department of Oncology, KU Leuven/VIB Center for Cancer Biology Leuven, Leuven, Belgium
| | - Bernard Thienpont
- Laboratory of Functional Epigenetics, Department of Human Genetics, KU Leuven, Leuven, Belgium
| | - Sarah-Maria Fendt
- Laboratory of Cellular Metabolism and Metabolic Regulation, VIB Center for Cancer Biology, Leuven, Belgium; Laboratory of Cellular Metabolism and Metabolic Regulation, Department of Oncology and Leuven Cancer Institute, KU Leuven, Leuven, Belgium
| | | | - Geert Carmeliet
- Laboratory of Clinical and Experimental Endocrinology, Department of Chronic Diseases and Metabolism, KU Leuven, O&N1bis Herestraat 49, 3000 Leuven, Belgium; Prometheus, Division of Skeletal Tissue Engineering, KU Leuven, Leuven, Belgium.
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Han Y, Koohi-Moghadam M, Chen Q, Zhang L, Chopra H, Zhang J, Dissanayaka WL. HIF-1α Stabilization Boosts Pulp Regeneration by Modulating Cell Metabolism. J Dent Res 2022; 101:1214-1226. [PMID: 35798352 DOI: 10.1177/00220345221091528] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
Stem cell-based therapeutics is a promising strategy in dental pulp regeneration. However, low cell viability after transplantation in vivo due to the ischemic microenvironment is still a critical challenge for future clinical application. With the aim of improving postimplantation cell survival and pulp tissue regeneration, stem cells from human exfoliated deciduous teeth (SHED) were preconditioned to a hypoxic condition by hypoxia-inducible factor 1α (HIF-1α) stabilization via knockdown of prolyl hydroxylase domain-containing protein 2 (PHD2) using lentiviral short hairpin RNA. HIF-1α-stabilized SHED were encapsulated in PuraMatrix hydrogel, injected into root canals of human tooth fragments, and implanted in the subcutaneous space of immunodeficient mice. After 28 d, enhanced dental pulp-like tissue formation was observed with a significantly higher level of vascularization, which could be attributed to both endothelial differentiation of SHED and recruitment of host blood vessels. Furthermore, dentin-like tissue formation in vivo and accelerated odontogenic/osteogenic differentiation both in vivo and in vitro were observed. At 7 d postimplantation, significantly less DNA damage and higher Ki67 expression were detected in the HIF-1α-stabilized SHED group compared with the control SHED. Accordingly, cell viability assay and staining for Ki67 and apoptotic cells in vitro showed that HIF-1α stabilization could decrease cell apoptosis and enhance cell survival significantly. We demonstrated that PI3K/AKT pathway activation had resulted in low caspase 3 expression in HIF-1α-stabilized SHED in hypoxic conditions. Furthermore, we found that HIF-1α-induced cell survival could also be attributed to the upregulated expression of PDK1, HK2, and Glut1, which contributes to the maintenance of reactive oxygen species homeostasis and metabolic adaptation in hypoxia. In addition, we identified Smad7 as 1 of the top 3 upregulated genes through RNA sequencing in HIF-1α-stabilized SHED and demonstrated its essential role in HK2 and Glut1 upregulation. Taken together, HIF-1α stabilization enhances cell survival of SHED through modulating various target genes and potential signaling pathways, as well as odontogenic tissue formation during dental pulp regeneration, which could benefit stem cell-based therapy in general.
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Affiliation(s)
- Y Han
- Applied Oral Sciences & Community Dental Care, Faculty of Dentistry, The University of Hong Kong, Pokfulam, Hong Kong
| | - M Koohi-Moghadam
- Applied Oral Sciences & Community Dental Care, Faculty of Dentistry, The University of Hong Kong, Pokfulam, Hong Kong
| | - Q Chen
- Applied Oral Sciences & Community Dental Care, Faculty of Dentistry, The University of Hong Kong, Pokfulam, Hong Kong
| | - L Zhang
- Applied Oral Sciences & Community Dental Care, Faculty of Dentistry, The University of Hong Kong, Pokfulam, Hong Kong
| | - H Chopra
- Periodontics and Oral Medicine, School of Dentistry, University of Michigan, Ann Arbor, MI, USA
| | - J Zhang
- Department of Orthodontics, School and Hospital of Stomatology, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, China
| | - W L Dissanayaka
- Applied Oral Sciences & Community Dental Care, Faculty of Dentistry, The University of Hong Kong, Pokfulam, Hong Kong
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