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Yao Y, Cai X, Chen Y, Zhang M, Zheng C. Estrogen deficiency-mediated osteoimmunity in postmenopausal osteoporosis. Med Res Rev 2024. [PMID: 39234932 DOI: 10.1002/med.22081] [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: 03/03/2022] [Revised: 03/03/2023] [Accepted: 08/25/2024] [Indexed: 09/06/2024]
Abstract
Postmenopausal osteoporosis (PMO) is a common disease associated with aging, and estrogen deficiency is considered to be the main cause of PMO. Recently, however, osteoimmunology has been revealed to be closely related to PMO. On the one hand, estrogen deficiency directly affects the activity of bone cells (osteoblasts, osteoclasts, osteocytes). On the other hand, estrogen deficiency-mediated osteoimmunity also plays a crucial role in bone loss in PMO. In this review, we systematically describe the progress of the mechanisms of bone loss in PMO, estrogen deficiency-mediated osteoimmunity, the differences between PMO patients and postmenopausal populations without osteoporosis, and estrogen deficiency-mediated immune cells (T cells, B cells, macrophages, neutrophils, dendritic cells, and mast cells) activity. The comprehensive summary of this paper provides a clear knowledge context for future research on the mechanism of PMO bone loss.
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Affiliation(s)
- Yao Yao
- Department of Pharmacy, Women's Hospital School of Medicine Zhejiang University, Hangzhou, China
| | - Xiaoyu Cai
- Department of Pharmacy, Affiliated Hangzhou First People's Hospital, School of Medicine, Westlake University, Hangzhou, China
| | - Yue Chen
- Department of Pharmacy, Women's Hospital School of Medicine Zhejiang University, Hangzhou, China
| | - Meng Zhang
- Department of Pharmacy, Women's Hospital School of Medicine Zhejiang University, Hangzhou, China
| | - Caihong Zheng
- Department of Pharmacy, Women's Hospital School of Medicine Zhejiang University, Hangzhou, China
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2
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Zhao G, Wang Y, Fan Z, Xiong J, Ertas YN, Ashammakhi N, Wang J, Ma T. Nanomaterials in crossroad of autophagy control in human cancers: Amplification of cell death mechanisms. Cancer Lett 2024; 591:216860. [PMID: 38583650 DOI: 10.1016/j.canlet.2024.216860] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2024] [Revised: 03/24/2024] [Accepted: 04/02/2024] [Indexed: 04/09/2024]
Abstract
Cancer is the result of genetic abnormalities that cause normal cells to grow into neoplastic cells. Cancer is characterized by several distinct features, such as uncontrolled cell growth, extensive spreading to other parts of the body, and the ability to resist treatment. The scientists have stressed the development of nanostructures as novel therapeutic options in suppressing cancer, in response to the emergence of resistance to standard medicines. One of the specific mechanisms with dysregulation during cancer is autophagy. Nanomaterials have the ability to specifically carry medications and genes, and they can also enhance the responsiveness of tumor cells to standard therapy while promoting drug sensitivity. The primary mechanism in this process relies on autophagosomes and their fusion with lysosomes to break down the components of the cytoplasm. While autophagy was initially described as a form of cellular demise, it has been demonstrated to play a crucial role in controlling metastasis, proliferation, and treatment resistance in human malignancies. The pharmacokinetic profile of autophagy modulators is poor, despite their development for use in cancer therapy. Consequently, nanoparticles have been developed for the purpose of delivering medications and autophagy modulators selectively and specifically to the cancer process. Furthermore, several categories of nanoparticles have demonstrated the ability to regulate autophagy, which plays a crucial role in defining the biological characteristics and response to therapy of tumor cells.
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Affiliation(s)
- Gang Zhao
- Department of Radiology, Shengjing Hospital of China Medical University, Shenyang, China
| | - Yutao Wang
- Department of Urology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Dongcheng, Beijing, 100000, China
| | - Zhongru Fan
- Department of Urology, The Affiliated Suzhou Hospital of Nanjing Medical University, Suzhou Municipal Hospital, Gusu School, Nanjing Medical University, Nanjing, China
| | - Jian Xiong
- Department of Obstetrics and Gynaecology, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, China
| | - Yavuz Nuri Ertas
- ERNAM-Nanotechnology Research and Application Center, Erciyes University, Kayseri, 38039, Türkiye; Department of Biomedical Engineering, Erciyes University, Kayseri, 39039, Türkiye.
| | - Nureddin Ashammakhi
- Institute for Quantitative Health Science and Engineering (IQ), Department of Biomedical Engineering, College of Engineering and Human Medicine, Michigan State University, East Lansing, MI, 48824, USA.
| | - Jianfeng Wang
- Department of Urology, First Hospital of China Medical University, Shenyang, Liaoning, 110001, China.
| | - Ting Ma
- Department of Hepatobiliary and Pancreatic Surgery, First Hospital of China Medical University, Shenyang, Liaoning, 110001, China.
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3
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McCormick JJ, McManus MK, King KE, Goulet N, Kenny GP. The intensity-dependent effects of exercise and superimposing environmental heat stress on autophagy in peripheral blood mononuclear cells from older men. Am J Physiol Regul Integr Comp Physiol 2024; 326:R29-R42. [PMID: 37955130 DOI: 10.1152/ajpregu.00163.2023] [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: 06/30/2023] [Revised: 10/31/2023] [Accepted: 11/01/2023] [Indexed: 11/14/2023]
Abstract
Autophagy is a vital cellular process, essential to maintaining cellular function during acute physiological stressors including exercise and heat stress. We previously showed that autophagy occurs during exercise in an intensity-dependent manner in peripheral blood mononuclear cells (PBMCs) from young men, with elevated responses in the heat. However, given autophagy declines with age, it is unclear whether a similar pattern of response occurs in older adults. Therefore, we evaluated autophagy and the cellular stress response [i.e., apoptosis, inflammation, and the heat shock response (HSR)] in PBMCs from 10 healthy older men [mean (SD): aged 70 yr (5)] in response to 30 min of semirecumbent cycling at low, moderate, and vigorous intensities [40, 55, and 70% maximal oxygen consumption (V̇o2max), respectively] in a temperate (25°C) environment, with an additional vigorous-intensity bout (70% of V̇o2max) performed in a hot environment (40°C). Responses were evaluated before and after exercise, as well as throughout a 6-h seated recovery period performed in the same environmental conditions as the respective exercise bout. Proteins were assessed via Western blot. Although we observed elevations in mean body temperature with each increase in exercise intensity, autophagy was only stimulated during vigorous-intensity exercise, where we observed elevations in LC3-II (P < 0.05). However, when the same exercise was performed in the heat, the LC3-II response was attenuated, which was accompanied by significant p62 accumulation (P < 0.05). Altogether, our findings demonstrate that older adults exhibit autophagic impairments when the same vigorous-intensity exercise is performed in hot environments, potentially underlying heat-induced cellular vulnerability in older men.NEW & NOTEWORTHY We demonstrate that autophagic stimulation occurs in response to short-duration (30-min) vigorous-intensity exercise in peripheral blood mononuclear cells from older adults; however, no changes in autophagy occur during low- or moderate-intensity exercise. Moreover, older adults exhibit autophagic impairments when the same vigorous-intensity exercise is performed in hot ambient conditions. When paired with an attenuated heat shock response, as well as elevated apoptotic responses, older men may exhibit greater cellular vulnerability to exertional heat stress.
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Affiliation(s)
- James J McCormick
- Human and Environmental Physiology Research Unit, School of Human Kinetics, University of Ottawa, Ottawa, Ontario, Canada
| | - Morgan K McManus
- Human and Environmental Physiology Research Unit, School of Human Kinetics, University of Ottawa, Ottawa, Ontario, Canada
| | - Kelli E King
- Human and Environmental Physiology Research Unit, School of Human Kinetics, University of Ottawa, Ottawa, Ontario, Canada
| | - Nicholas Goulet
- Human and Environmental Physiology Research Unit, School of Human Kinetics, University of Ottawa, Ottawa, Ontario, Canada
| | - Glen P Kenny
- Human and Environmental Physiology Research Unit, School of Human Kinetics, University of Ottawa, Ottawa, Ontario, Canada
- Clinical Epidemiology Program, Ottawa Hospital Research Institute, Ottawa, Ontario, Canada
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4
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Silva RCMC, Travassos LH, Dutra FF. The dichotomic role of single cytokines: Fine-tuning immune responses. Cytokine 2024; 173:156408. [PMID: 37925788 DOI: 10.1016/j.cyto.2023.156408] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2023] [Revised: 10/19/2023] [Accepted: 10/23/2023] [Indexed: 11/07/2023]
Abstract
Cytokines are known for their pleiotropic effects. They can be classified by their function as pro-inflammatory, such as tumor necrosis factor (TNF), interleukin (IL) 1 and IL-12, or anti-inflammatory, like IL-10, IL-35 and transforming growth factor β (TGF-β). Though this type of classification is an important simplification for the understanding of the general cytokine's role, it can be misleading. Here, we discuss recent studies that show a dichotomic role of the so-called pro and anti-inflammatory cytokines, highlighting that their function can be dependent on the microenvironment and their concentrations. Furthermore, we discuss how the back-and-forth interplay between cytokines and immunometabolism can influence the dichotomic role of inflammatory responses as an important target to complement cytokine-based therapies.
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Affiliation(s)
| | - Leonardo Holanda Travassos
- Laboratório de Receptores e Sinalização intracelular, Instituto de Biofísica Carlos Chagas Filho, UFRJ, Rio de Janeiro, Brazil
| | - Fabianno Ferreira Dutra
- Laboratório de Imunologia e Inflamação, Instituto de Microbiologia Paulo de Góes, UFRJ, Rio de Janeiro, Brazil
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Yin Q, Yang H, Fang L, Wu Q, Gao S, Wu Y, Zhou L. Fibroblast growth factor 23 regulates hypoxia‑induced osteoblast apoptosis through the autophagy‑signaling pathway. Mol Med Rep 2023; 28:199. [PMID: 37711045 PMCID: PMC10540001 DOI: 10.3892/mmr.2023.13086] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2023] [Accepted: 08/18/2023] [Indexed: 09/16/2023] Open
Abstract
Hypoxia can lead to programmed osteoblast death. Prevention of osteoblast apoptosis caused by hypoxia is of great significance in the study of the occurrence and development of bone necrosis. The present study aimed to investigate the effects and mechanism of fibroblast growth factor 23 (FGF23) on hypoxia‑induced apoptosis in primary osteoblasts and MC3T3‑E1 cells osteoblasts. Cells were transfected with a plasmid carrying the FGF23 gene and a cell model of hypoxia‑induced apoptosis was established. FGF23 mRNA levels were measured using reverse transcription‑quantitative (RT‑q) PCR and western blotting was used to assess protein levels. Apoptosis was analyzed by MTT assay, fluorescein diacetate and ethidium bromide staining, flow cytometry and RT‑qPCR and western blotting were used to verify the mRNA and protein levels of apoptosis‑ and autophagy‑related gene mRNA. The targeted relationship between miR‑17‑5p and FGF23 was confirmed using the StarBase database, TargetScan database and a luciferase reporter assay. FGF23 decreased cell survival and increased the rate of apoptosis. The mRNA and protein expression of the pro‑apoptotic genes Bax and caspases 3 and 9 increased, whereas that of the anti‑apoptotic Bcl‑2 decreased. The expressions of the autophagy‑associated proteins beclin‑1, light chain 3‑II (LC3‑II) and the LC3‑II/LC3‑I ratio were significantly increased. In addition, a luciferase reporter assay confirmed that FGF23 directly regulated micro RNA (miR)‑17‑5p. The effects of FGF23 silencing were reversed by miR‑17‑5p inhibition. FGF23 may regulate hypoxia‑induced osteoblast apoptosis by targeting miR‑17‑5p through the autophagy‑signaling pathway. This provides a rationale for FGF23 as a potential therapeutic target for osteonecrosis of the femoral head.
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Affiliation(s)
- Qipu Yin
- Institute of Sports Medicine, Shandong First Medical University and Shandong Academy of Medical Sciences, Taian, Shandong 271016, P.R. China
| | - Hongxia Yang
- School of Nursing, Shandong First Medical University and Shandong Academy of Medical Sciences, Taian, Shandong 271016, P.R. China
| | - Lun Fang
- Institute of Sports Medicine, Shandong First Medical University and Shandong Academy of Medical Sciences, Taian, Shandong 271016, P.R. China
| | - Qi Wu
- Department of Rehabilitation and Physiotherapy, Taian Maternal and Child Health Hospital, Taian, Shandong 271000, P.R. China
| | - Shan Gao
- School of Pharmaceutical Science, Shandong First Medical University and Shandong Academy of Medical Sciences, Taian, Shandong 271016, P.R. China
| | - Yadi Wu
- Institute of Sports Medicine, Shandong First Medical University and Shandong Academy of Medical Sciences, Taian, Shandong 271016, P.R. China
| | - Lu Zhou
- Institute of Sports Medicine, Shandong First Medical University and Shandong Academy of Medical Sciences, Taian, Shandong 271016, P.R. China
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6
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McCormick JJ, Meade RD, King KE, Notley SR, Akerman AP, McGarr GW, Richards BJ, McCourt ER, Boulay P, Sigal RJ, Kenny GP. Physiological responses to 9 hours of heat exposure in young and older adults. Part II: Autophagy and the acute cellular stress response. J Appl Physiol (1985) 2023; 135:688-695. [PMID: 37471211 DOI: 10.1152/japplphysiol.00411.2023] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2023] [Revised: 07/12/2023] [Accepted: 07/13/2023] [Indexed: 07/22/2023] Open
Abstract
With rising global temperatures, heat-related mortality is increasing, particularly among older adults. Although this is often attributed to declines in thermoregulatory function, little is known regarding the effect of age on the cellular processes associated with mitigating heat-induced cytotoxicity. We compared key components of the cellular stress response in 19 young (19-31 yr; 10 female) and 37 older adults (61-78 yr; 10 female) during 9 h of heat exposure (40°C, 9% relative humidity). Mean body temperature (Tbody) was calculated from core and skin temperatures. Changes in proteins associated with autophagy, apoptotic signaling, acute inflammation, and the heat shock response were assessed via Western blot in peripheral blood mononuclear cells harvested before and after exposure. Tbody increased by 1.5 (SD 0.3)°C and 1.7 (0.3)°C in the young and older adults, respectively. We observed similar elevations in autophagy-related proteins (LC3-II and LC3-II/I) in young and older adults (both P ≥ 0.121). However, the older adults displayed signs of autophagic dysfunction, evidenced by a 3.7-fold [95% CI: 2.4, 5.6] greater elevation in the selective autophagy receptor p62 (P < 0.001). This was paired with elevations in apoptotic responses, with a 1.7-fold [1.3, 2.3] increase in cleaved caspase-3 in the older relative to young adults (P < 0.001). Older adults also exhibited diminished heat shock protein 90 responses (0.7-fold [0.5, 0.9] vs. young, P = 0.011) and, at any given level of thermal strain (Tbody area under the curve), elevated tumor necrosis factor-α (1.5-fold [1.0, 2.5] vs. young, P = 0.008). Attenuated autophagic responses may underlie greater vulnerability to heat-induced cellular injury in older adults.NEW & NOTEWORTHY We demonstrate for the first time that peripheral blood mononuclear cells from older adults exhibit signs of autophagic impairments during daylong (9 h) heat exposure relative to their younger counterparts. This was paired with greater apoptotic signaling and inflammatory responses, and an inability to stimulate components of the heat shock response. Thus, autophagic dysregulation during prolonged heat exposure may contribute to age-related heat vulnerability during hot weather and heat waves.
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Affiliation(s)
- James J McCormick
- Human and Environmental Physiology Research Unit, School of Human Kinetics, University of Ottawa, Ontario, Canada
| | - Robert D Meade
- Human and Environmental Physiology Research Unit, School of Human Kinetics, University of Ottawa, Ontario, Canada
- Harvard T.H. Chan School of Public Health, Harvard University, Boston, Massachusetts, United States
| | - Kelli E King
- Human and Environmental Physiology Research Unit, School of Human Kinetics, University of Ottawa, Ontario, Canada
| | - Sean R Notley
- Human and Environmental Physiology Research Unit, School of Human Kinetics, University of Ottawa, Ontario, Canada
| | - Ashley P Akerman
- Human and Environmental Physiology Research Unit, School of Human Kinetics, University of Ottawa, Ontario, Canada
| | - Gregory W McGarr
- Human and Environmental Physiology Research Unit, School of Human Kinetics, University of Ottawa, Ontario, Canada
| | - Brodie J Richards
- Human and Environmental Physiology Research Unit, School of Human Kinetics, University of Ottawa, Ontario, Canada
| | - Emma R McCourt
- Human and Environmental Physiology Research Unit, School of Human Kinetics, University of Ottawa, Ontario, Canada
| | - Pierre Boulay
- Faculty of Physical Activity Sciences, University of Sherbrooke, Quebec, Canada
| | - Ronald J Sigal
- Human and Environmental Physiology Research Unit, School of Human Kinetics, University of Ottawa, Ontario, Canada
- Departments of Medicine, Cardiac Sciences and Community Health Sciences, Faculties of Medicine and Kinesiology, University of Calgary, Alberta, Canada
- Clinical Epidemiology Program, Ottawa Hospital Research Institute, Ottawa, Ontario, Canada
| | - Glen P Kenny
- Human and Environmental Physiology Research Unit, School of Human Kinetics, University of Ottawa, Ontario, Canada
- Clinical Epidemiology Program, Ottawa Hospital Research Institute, Ottawa, Ontario, Canada
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7
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Liu F, Pan H, Xie M, Wang Y, Xu H. Carboxymethyl chitosan regulates oxidative stress and decreases the expression levels of tumor necrosis factor α in macrophages induced by wear particles. Cytotechnology 2023; 75:153-163. [PMID: 36969568 PMCID: PMC10030764 DOI: 10.1007/s10616-023-00569-z] [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: 08/12/2022] [Accepted: 01/02/2023] [Indexed: 01/13/2023] Open
Abstract
The aim of the present study was to determine the effects of carboxymethyl chitosan (CMC) on titanium particles-induced oxidative stress in mouse RAW264.7 macrophages. The mouse RAW264.7 macrophages were divided into four groups: (i) the control group; (ii) the CMC group received stimulation of CMC for 4 h; (iii) the titanium particles group received stimulation of titanium particles for 12 h; and (iv) the CMC group received pre-stimulation of CMC hydrogels for 4 h followed by treatment of titanium particles for 12 h. Afterwards, reactive oxygen species (ROS) level in the cells was measured by flow cytometry. A spectrophotometer was used to measure the activities of oxidases and antioxidant enzymes. Fluorescence quantitative PCR was performed to analyze mRNA levels of enzymes and tumor necrosis factor α (TNF-α). ELISA was used to detect the mass concentration of TNF-α after indicated treatment. CMC effectively suppressed titanium particles-induced oxidative stress in RAW264.7 cells, as evidenced by the decrease in intracellular ROS level, the transcription of oxidases, and TNF-α concentration as well as the increase in the transcription of antioxidant enzymes. CMC exerts a protective impact against wear particles-induced oxidative stress and reduces the release of TNF-α in RAW264.7 cells.
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Affiliation(s)
- Feng Liu
- Department of Orthopedics, Wuhan Fourth Hospital, Wuhan, 430000 Hubei China
| | - Hao Pan
- Department of Orthopedics, Wuhan Fourth Hospital, Wuhan, 430000 Hubei China
| | - Ming Xie
- Department of Orthopedics, Wuhan Fourth Hospital, Wuhan, 430000 Hubei China
| | - Yingzhen Wang
- Department of Joint Surgery, The Affiliated Hospital of Qingdao University, Qingdao, 266000 Shandong China
| | - Hao Xu
- Department of Joint Surgery, The Affiliated Hospital of Qingdao University, Qingdao, 266000 Shandong China
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8
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Yuping Q, Yijun L, Limei W. Low concentrations of tumor necrosis factor-alpha promote human periodontal ligament stem cells osteogenic differentiation by activation of autophagy via inhibition of AKT/mTOR pathway. Mol Biol Rep 2023; 50:3329-3339. [PMID: 36725746 DOI: 10.1007/s11033-022-08173-8] [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: 07/29/2022] [Accepted: 12/01/2022] [Indexed: 02/03/2023]
Abstract
BACKGROUND Tumor necrosis factor-alpha (TNF-α) is one of the crucial inflammatory factors in alveolar bone metabolism during the process of periodontitis. Autophagy is indispensable for proper osteoblast function. However, the effects of autophagy on osteogenic differentiation of human periodontal ligament stem cells (hPDLSCs) in inflammatory microenvironment and the underlying mechanisms remain to be clarified. The aim of the present study was to investigate whether autophagy participates in hPDLSCs differentiation after treated with TNF-α and explore the underlying mechanisms. METHODS AND RESULTS Characterizations of hPDLSCs were evaluated by Alizarin-red S staining, Oil red staining and flow cytometry. hPDLSCs were treated with various concentrations of TNF-α. Rapamycin or 3MA was used to achieve or inhibit autophagy activation. AKT signaling was inhibited using ARQ092. Cell proliferation was evaluated using Cell Counting Kit-8 (CCK8) assay. Real-time reverse transcriptase-polymerase chain reaction assay (RT-PCR), western blot, alkaline phosphatase (ALP) staining and Alizarin Red S staining were applied to evaluate levels of osteogenic differentiation and autophagy. CCK8 showed that low concentrations of TNF-α had no influence on cell proliferation, while high concentrations of TNF-α inhibited proliferation. Low concentrations of TNF-α promoted osteogenic differentiation and autophagy, while high concentrations of TNF-α inhibited osteogenic differentiation and autophagy in hPDLSCs. The levels of osteogenic differentiation in hPDLSCs were partly effected after co-incubation with 0.1 ng/mL TNF-α with 3MA or Rapamycin. ARQ092 enhanced 0.1 ng/mL TNF-α-induced ALP expression and mineral nodule formation. CONCLUSION Low concentrations of TNF-α promote hPDLSCs osteogenic differentiation by activation of autophagy via inhibition of AKT/mTOR signaling.
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Affiliation(s)
- Qi Yuping
- Department of Oral Medicine, Qilu Hospital of Shandong University, Wenhua West Road 107, 250012, Jinan, China
- Institute of Stomatology, Shandong University, Jinan, China
| | - Luan Yijun
- Department of Oral Medicine, Qilu Hospital of Shandong University, Wenhua West Road 107, 250012, Jinan, China
- Institute of Stomatology, Shandong University, Jinan, China
| | - Wang Limei
- Department of Oral Medicine, Qilu Hospital of Shandong University, Wenhua West Road 107, 250012, Jinan, China.
- Institute of Stomatology, Shandong University, Jinan, China.
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9
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Yun H, Kim B, Jeong YH, Hong JT, Park K. Suffruticosol A elevates osteoblast differentiation targeting BMP2-Smad/1/5/8-RUNX2 in pre-osteoblasts. Biofactors 2023; 49:127-139. [PMID: 35852295 PMCID: PMC10947220 DOI: 10.1002/biof.1878] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/23/2022] [Accepted: 07/03/2022] [Indexed: 11/11/2022]
Abstract
The Paeonia suffruticosa ANDR. (P. suffruticosa) is commonly used in traditional medicine for various purposes. Suffruticosol A (Suf-A), isolated from P. suffruticosa, is a beneficial compound with antibiofilm, antivirulence, and anti-inflammatory properties. The aim of the present study was to investigate the biological effects of Suf-A on osteogenic processes in pre-osteoblasts. It was determined here in that Suf-A (>98.02%), isolated from P. suffruticosa, showed no cytotoxicity at 0.1-30 μM; however, it induced cytotoxicity at 50-100 μM in pre-osteoblasts. Suf-A increased osteogenic alkaline phosphatase activity and expression levels of noncollagenous proteins. Adhesion and trans-migration on the extracellular matrix were potentiated by Suf-A, but not by wound-healing migration. Suf-A did not affect autophagy or necroptosis during osteoblast differentiation. We found that Suf-A increased runt-related transcription factor 2 (RUNX2) levels and mineralized matrix formation. RUNX2 expression was mediated by Suf-A-induced BMP2-Smad1/5/8 and mitogen-activated protein kinase signaling, as demonstrated by Noggin, a BMP2 inhibitor. These results suggest that Suf-A is a potential natural osteogenic compound.
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Affiliation(s)
- Hyung‐Mun Yun
- Department of Oral and Maxillofacial PathologySchool of Dentistry, Kyung Hee UniversitySeoulRepublic of Korea
| | - Bomi Kim
- National Development Institute of Korean MedicineGyeongsanRepublic of Korea
| | - Yun Hee Jeong
- National Development Institute of Korean MedicineGyeongsanRepublic of Korea
| | - Jin Tae Hong
- College of Pharmacy and Medical Research Center, Chungbuk National UniversityChungbukRepublic of Korea
| | - Kyung‐Ran Park
- Gwangju CenterKorea Basic Science Institute (KBSI)GwangjuRepublic of Korea
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10
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Wang G, Luo J, Qiao Y, Zhang D, Liu Y, Zhang W, Liu X, Jiang X. AMPK/mTOR Pathway Is Involved in Autophagy Induced by Magnesium-Incorporated TiO 2 Surface to Promote BMSC Osteogenic Differentiation. J Funct Biomater 2022; 13:jfb13040221. [PMID: 36412862 PMCID: PMC9680369 DOI: 10.3390/jfb13040221] [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: 09/03/2022] [Revised: 10/28/2022] [Accepted: 10/30/2022] [Indexed: 11/09/2022] Open
Abstract
Magnesium has been extensively utilized to modify titanium implant surfaces based on its important function in promoting osteogenic differentiation. Autophagy has been proven to play a vital role in bone metabolism. Whether there is an association between autophagy and magnesium in promoting osteogenic differentiation remains unclear. In the present study, we focused on investigating the role of magnesium ions in early osteogenic activity and the underlying mechanism related to autophagy. Different concentrations of magnesium were embedded in micro-structured titanium surface layers using the micro-arc oxidation (MAO) technique. The incorporation of magnesium benefited cell adhesion, spreading, and viability; attenuated intracellular ATP concentrations and p-mTOR levels; and upregulated p-AMPK levels. This indicates the vital role of the ATP-related AMPK/mTOR signaling pathway in the autophagy process associated with osteogenic differentiation of bone marrow mesenchymal stem cells (BMSCs) induced by magnesium modification on titanium surfaces. The enhanced osteogenic differentiation and improved cellular autophagy activity of BMSCs in their extraction medium further confirmed the function of magnesium ions. The results of the present study advance our understanding of the mechanism by which magnesium regulates BMSC osteogenic differentiation through autophagy regulation. Moreover, endowing implants with the ability to activate autophagy may be a promising strategy for enhancing osseointegration in the translational medicine field in the future.
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Affiliation(s)
- Guifang Wang
- Department of Prosthodontics, Shanghai Ninth People’s Hospital, Shanghai Jiao Tong University School of Medicine, 639 Zhizaoju Road, Shanghai 200011, China
- College of Stomatology, Shanghai Jiao Tong University, National Center for Stomatology, National Clinical Research Center for Oral Diseases, Shanghai Key Laboratory of Stomatology, Shanghai Engineering Research Center of Advanced Dental Technology and Materials, 639 Zhizaoju Road, Shanghai 200011, China
| | - Jiaxin Luo
- Department of Prosthodontics, Shanghai Ninth People’s Hospital, Shanghai Jiao Tong University School of Medicine, 639 Zhizaoju Road, Shanghai 200011, China
- College of Stomatology, Shanghai Jiao Tong University, National Center for Stomatology, National Clinical Research Center for Oral Diseases, Shanghai Key Laboratory of Stomatology, Shanghai Engineering Research Center of Advanced Dental Technology and Materials, 639 Zhizaoju Road, Shanghai 200011, China
| | - Yuqin Qiao
- State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, No. 1295 Dingxi Road, Shanghai 200050, China
- Correspondence: (Y.Q.); (X.J.)
| | - Dongdong Zhang
- State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, No. 1295 Dingxi Road, Shanghai 200050, China
| | - Yulan Liu
- Department of Prosthodontics, Shanghai Ninth People’s Hospital, Shanghai Jiao Tong University School of Medicine, 639 Zhizaoju Road, Shanghai 200011, China
- College of Stomatology, Shanghai Jiao Tong University, National Center for Stomatology, National Clinical Research Center for Oral Diseases, Shanghai Key Laboratory of Stomatology, Shanghai Engineering Research Center of Advanced Dental Technology and Materials, 639 Zhizaoju Road, Shanghai 200011, China
| | - Wenjie Zhang
- Department of Prosthodontics, Shanghai Ninth People’s Hospital, Shanghai Jiao Tong University School of Medicine, 639 Zhizaoju Road, Shanghai 200011, China
- College of Stomatology, Shanghai Jiao Tong University, National Center for Stomatology, National Clinical Research Center for Oral Diseases, Shanghai Key Laboratory of Stomatology, Shanghai Engineering Research Center of Advanced Dental Technology and Materials, 639 Zhizaoju Road, Shanghai 200011, China
| | - Xuanyong Liu
- State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, No. 1295 Dingxi Road, Shanghai 200050, China
| | - Xinquan Jiang
- Department of Prosthodontics, Shanghai Ninth People’s Hospital, Shanghai Jiao Tong University School of Medicine, 639 Zhizaoju Road, Shanghai 200011, China
- College of Stomatology, Shanghai Jiao Tong University, National Center for Stomatology, National Clinical Research Center for Oral Diseases, Shanghai Key Laboratory of Stomatology, Shanghai Engineering Research Center of Advanced Dental Technology and Materials, 639 Zhizaoju Road, Shanghai 200011, China
- Correspondence: (Y.Q.); (X.J.)
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11
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Ren S, Huang T, Ou D, Feng L, Huang S, Zhou C, Ge L. Inhibition of TNF- α and JNK Signaling Pathway Can Reduce Paclitaxel-Induced Apoptosis of Mouse Cardiomyocytes. Appl Bionics Biomech 2022; 2022:8460121. [PMID: 36016921 PMCID: PMC9398847 DOI: 10.1155/2022/8460121] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2022] [Revised: 07/17/2022] [Accepted: 07/21/2022] [Indexed: 11/17/2022] Open
Abstract
Paclitaxel (PTX) is a widely used chemotherapeutic drug for treating tumors. However, studies have shown that it can cause cardiac problems such as arrhythmia, myocarditis, chronic cardiomyopathy, and heart failure. Therefore, it is essential to study the mechanism behind the cardiotoxicity of PTX in tumor treatment. In this study, we initially injected PTX into mice to establish a myocardial cell apoptosis model to observe the degree of damage to mouse myocardium caused by PTX. Upon determining the levels of mouse myocardial creatine phosphokinase (CK), myokinase isoenzyme (CK-MB), aspartate transaminase (AST), and lactate dehydrogenase (LDH), we found that all of these levels showed apparent increases in mice treated with PTX. Further analyses of the TNF-α level and the expression of Jun N-terminal kinase (JNK) and Bcl-2 family-related proteins in myocardial tissue were performed. It was found that PTX increased the protein levels of TNF-α, Bax, p-JNK, and JNK in myocardial tissue but decreased the protein level of Bcl-2. After 1 month of PTX treatment in mice, we inhibited the expression of TNF-α and JNK proteins, which reduced the effect of paclitaxel on the apoptosis of mouse cardiomyocytes. The protein levels of Bax, p-JNK, and TNF-α in cardiomyocytes were reduced, while there was a relative increase in the Bcl-2 protein level. The findings suggested that inhibition of the NK signaling pathway and TNF-α can lessen the effect of PTX on mouse cardiomyocytes.
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Affiliation(s)
- Shuang Ren
- Department of General Internal Medicine, Guangxi Medical University Cancer Hospital, Nanning, 530021 Guangxi, China
| | - Tianwen Huang
- Department of Clinical Pharmacy, Guangxi Medical University Cancer Hospital, Nanning, 530021 Guangxi, China
| | - Danyan Ou
- Department of General Internal Medicine, Guangxi Medical University Cancer Hospital, Nanning, 530021 Guangxi, China
| | - Luhuai Feng
- Department of General Internal Medicine, Guangxi Medical University Cancer Hospital, Nanning, 530021 Guangxi, China
| | - Sisi Huang
- Department of General Internal Medicine, Guangxi Medical University Cancer Hospital, Nanning, 530021 Guangxi, China
| | - Chaonan Zhou
- Department of General Internal Medicine, Guangxi Medical University Cancer Hospital, Nanning, 530021 Guangxi, China
| | - Lianying Ge
- Ultrasonic Department, Guangxi Medical University Cancer Hospital, Nanning, 530021 Guangxi, China
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12
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Song S, Guo Y, Yang Y, Fu D. Advances in pathogenesis and therapeutic strategies for osteoporosis. Pharmacol Ther 2022; 237:108168. [PMID: 35283172 DOI: 10.1016/j.pharmthera.2022.108168] [Citation(s) in RCA: 126] [Impact Index Per Article: 63.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2022] [Revised: 02/25/2022] [Accepted: 03/07/2022] [Indexed: 02/07/2023]
Abstract
Osteoporosis, is the most common bone disorder worldwide characterized by low bone mineral density, leaving affected bones vulnerable to fracture. Bone homeostasis depends on the precise balance between bone resorption by osteoclasts and bone matrix formation by mesenchymal lineage osteoblasts, and involves a series of complex and highly regulated steps. Bone homeostasis will be disrupted when the speed of bone resorption is faster than bone formation. Based on various regulatory mechanisms of bone homeostasis, a series of drugs targeting osteoporosis have emerged in clinical practice, including bisphosphonates, selective estrogen receptor modulators, calcitonin, molecular-targeted drugs and so on. However, many drugs have major adverse effects or are unsuitable for long-term use. Therefore, it is very urgent to find more effective therapeutic drugs based on the new pathogenesis of osteoporosis. In this review, we summarize novel mechanisms involved in the pathological process of osteoporosis, including the roles of gut microbiome, autophagy, iron balance and cellular senescence. Based on the above pathological mechanism, we found promising drugs for osteoporosis treatment, such as: probiotics, alpha-ketoglutarate, senolytics and hydrogen sulfide. This new finding may provide an important basis for elucidating the complex pathological mechanisms of osteoporosis and provide promising drugs for clinical osteoporosis treatment.
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Affiliation(s)
- Shasha Song
- College of Pharmacy, Shenzhen Technology University, Shenzhen 518118, PR China
| | - Yuanyuan Guo
- Department of Pharmacy, Liyuan Hospital, Tongji Medical School, Huazhong University of Science and Technology, Wuhan, Hubei 430077, PR China
| | - Yuehua Yang
- Department of Orthopedics, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200080, PR China
| | - Dehao Fu
- Department of Orthopedics, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200080, PR China.
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13
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Paskeh MDA, Entezari M, Clark C, Zabolian A, Ranjbar E, Farahani MV, Saleki H, Sharifzadeh SO, Far FB, Ashrafizadeh M, Samarghandian S, Khan H, Ghavami S, Zarrabi A, Łos MJ. Targeted regulation of autophagy using nanoparticles: New insight into cancer therapy. Biochim Biophys Acta Mol Basis Dis 2022; 1868:166326. [DOI: 10.1016/j.bbadis.2021.166326] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2021] [Revised: 10/31/2021] [Accepted: 12/11/2021] [Indexed: 12/12/2022]
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14
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Wang X, Zhang X, Han Y, Duan X, Wang J, Yan H, Wang S, Xu Y, Zhu Z, Wang L, Huang Y, Lin Q, Tan X, Zhuo J, Zhang H, Mao M, Gou W, Yi Z, Li X. Role of the major histocompatibility complex class II protein presentation pathway in bone immunity imbalance in postmenopausal osteoporosis. Front Endocrinol (Lausanne) 2022; 13:876067. [PMID: 36034452 PMCID: PMC9402988 DOI: 10.3389/fendo.2022.876067] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/15/2022] [Accepted: 07/13/2022] [Indexed: 11/13/2022] Open
Abstract
Bone immunity regulates osteoclast differentiation and bone resorption and is a potential target for the treatment of postmenopausal osteoporosis (PMOP). The molecular network between bone metabolism and the immune system is complex. However, the molecular mechanism underlying the involvement of the major histocompatibility complex class II (MHC-II) molecule protein presentation pathway in PMOP remains to be elucidated. The MHC-II molecule is a core molecule of the protein presentation pathway. It is combined with the processed short peptide and presented to T lymphocytes, thereby activating them to become effector T cells. T-cell-derived inflammatory factors promote bone remodeling in PMOP. Moreover, the MHC-II molecule is highly expressed in osteoclast precursors. MHC-II transactivator (CIITA) is the main regulator of MHC-II gene expression and the switch for protein presentation. CIITA is also a major regulator of osteoclast differentiation and bone homeostasis. Therefore, we hypothesized that the MHC-II promotes osteoclast differentiation, providing a novel pathogenic mechanism and a potential target for the treatment of PMOP.
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Affiliation(s)
- Xiaoning Wang
- College of Integrative Medicine, Fujian University of Traditional Chinese Medicine, Fuzhou, China
- Academy of Integrative Medicine, Fujian University of Traditional Chinese Medicine, Fuzhou, China
| | - Xin Zhang
- Academy of Integrative Medicine, Fujian University of Traditional Chinese Medicine, Fuzhou, China
| | - Yidan Han
- Academy of Integrative Medicine, Fujian University of Traditional Chinese Medicine, Fuzhou, China
| | - Xinwei Duan
- Academy of Integrative Medicine, Fujian University of Traditional Chinese Medicine, Fuzhou, China
| | - Jianchang Wang
- College of Integrative Medicine, Fujian University of Traditional Chinese Medicine, Fuzhou, China
| | - Hui Yan
- College of Integrative Medicine, Fujian University of Traditional Chinese Medicine, Fuzhou, China
| | - Shanshan Wang
- College of Integrative Medicine, Fujian University of Traditional Chinese Medicine, Fuzhou, China
| | - Yunteng Xu
- Academy of Integrative Medicine, Fujian University of Traditional Chinese Medicine, Fuzhou, China
| | - Zaishi Zhu
- Academy of Integrative Medicine, Fujian University of Traditional Chinese Medicine, Fuzhou, China
| | - Lili Wang
- Academy of Integrative Medicine, Fujian University of Traditional Chinese Medicine, Fuzhou, China
- Fujian Key Laboratory of Integrative Medicine on Geriatrics, Fujian University of Traditional Chinese Medicine, Fuzhou, China
| | - Yanfeng Huang
- Academy of Integrative Medicine, Fujian University of Traditional Chinese Medicine, Fuzhou, China
| | - Qing Lin
- Academy of Integrative Medicine, Fujian University of Traditional Chinese Medicine, Fuzhou, China
| | - Xue Tan
- Academy of Integrative Medicine, Fujian University of Traditional Chinese Medicine, Fuzhou, China
| | - Junkuan Zhuo
- Academy of Integrative Medicine, Fujian University of Traditional Chinese Medicine, Fuzhou, China
| | - Haifeng Zhang
- Academy of Integrative Medicine, Fujian University of Traditional Chinese Medicine, Fuzhou, China
| | - Min Mao
- Academy of Integrative Medicine, Fujian University of Traditional Chinese Medicine, Fuzhou, China
| | - Weiying Gou
- Academy of Integrative Medicine, Fujian University of Traditional Chinese Medicine, Fuzhou, China
| | - Zhouping Yi
- Academy of Integrative Medicine, Fujian University of Traditional Chinese Medicine, Fuzhou, China
| | - Xihai Li
- College of Integrative Medicine, Fujian University of Traditional Chinese Medicine, Fuzhou, China
- Fujian Key Laboratory of Integrative Medicine on Geriatrics, Fujian University of Traditional Chinese Medicine, Fuzhou, China
- *Correspondence: Xihai Li,
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15
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Müskens KF, Lindemans CA, Belderbos ME. Hematopoietic Dysfunction during Graft-Versus-Host Disease: A Self-Destructive Process? Cells 2021; 10:cells10082051. [PMID: 34440819 PMCID: PMC8392486 DOI: 10.3390/cells10082051] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2021] [Revised: 07/27/2021] [Accepted: 08/03/2021] [Indexed: 11/16/2022] Open
Abstract
Graft-versus-host disease (GvHD) is a major complication of allogeneic hematopoietic (stem) cell transplantation (HCT). Clinically, GvHD is associated with severe and long-lasting hematopoietic dysfunction, which may contribute to the high mortality of GvHD after HCT. During GvHD, excessive immune activation damages both hematopoietic stem and progenitor cells and their surrounding bone marrow niche, leading to a reduction in cell number and functionality of both compartments. Hematopoietic dysfunction can be further aggravated by the occurrence—and treatment—of HCT-associated complications. These include immune suppressive therapy, coinciding infections and their treatment, and changes in the microbiome. In this review, we provide a structured overview of GvHD-mediated hematopoietic dysfunction, including the targets in the bone marrow, the mechanisms of action and the effect of GvHD-related complications and their treatment. This information may aid in the identification of treatment options to improve hematopoietic function in patients, during and after GvHD.
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Affiliation(s)
- Konradin F. Müskens
- Princess Máxima Center for Pediatric Oncology, 3584 CS Utrecht, The Netherlands; (K.F.M.); (C.A.L.)
| | - Caroline A. Lindemans
- Princess Máxima Center for Pediatric Oncology, 3584 CS Utrecht, The Netherlands; (K.F.M.); (C.A.L.)
- Wilhelmina Children’s Hospital, University Medical Center Utrecht, 3584 EA Utrecht, The Netherlands
| | - Mirjam E. Belderbos
- Princess Máxima Center for Pediatric Oncology, 3584 CS Utrecht, The Netherlands; (K.F.M.); (C.A.L.)
- Correspondence:
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16
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Wu D, Cline-Smith A, Shashkova E, Perla A, Katyal A, Aurora R. T-Cell Mediated Inflammation in Postmenopausal Osteoporosis. Front Immunol 2021; 12:687551. [PMID: 34276675 PMCID: PMC8278518 DOI: 10.3389/fimmu.2021.687551] [Citation(s) in RCA: 53] [Impact Index Per Article: 17.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2021] [Accepted: 06/04/2021] [Indexed: 12/11/2022] Open
Abstract
Osteoporosis is the most prevalent metabolic bone disease that affects half the women in the sixth and seventh decade of life. Osteoporosis is characterized by uncoupled bone resorption that leads to low bone mass, compromised microarchitecture and structural deterioration that increases the likelihood of fracture with minimal trauma, known as fragility fractures. Several factors contribute to osteoporosis in men and women. In women, menopause - the cessation of ovarian function, is one of the leading causes of primary osteoporosis. Over the past three decades there has been growing appreciation that the adaptive immune system plays a fundamental role in the development of postmenopausal osteoporosis, both in humans and in mouse models. In this review, we highlight recent data on the interactions between T cells and the skeletal system in the context of postmenopausal osteoporosis. Finally, we review recent studies on the interventions to ameliorate osteoporosis.
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Affiliation(s)
| | | | | | | | | | - Rajeev Aurora
- Department of Molecular Microbiology and Immunology, Saint Louis University School of Medicine, St. Louis, MO, United States
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17
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Tyciakova S, Valova V, Svitkova B, Matuskova M. Overexpression of TNFα induces senescence, autophagy and mitochondrial dysfunctions in melanoma cells. BMC Cancer 2021; 21:507. [PMID: 33957885 PMCID: PMC8101174 DOI: 10.1186/s12885-021-08237-1] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2020] [Accepted: 04/22/2021] [Indexed: 11/10/2022] Open
Abstract
Background Tumor necrosis factor alpha (TNFα) is a pleiotropic cytokine with both anti-tumorigenic and pro-tumorigenic activity, affecting tumor cell biology, the balance between cell survival and death. The final effect of TNFα is dependent on the type of malignant cells, with the potential to arrest cancer progression. Methods In order to explain the diverse cellular response to TNFα, we engineered melanoma and colorectal carcinoma cell lines stably overexpressing this cytokine. Results Under the TNFα overexpression, significant upregulation of two genes was observed: proinflammatory cytokine IL6 gene in melanoma cells A375 and gene for pro-apoptotic ligand TRAIL in colorectal carcinoma cells HT29, both mediated by TNFα/TNFR1 signaling. Malignant melanoma line A375 displayed also increased autophagy on day 3, followed by premature senescence on day 6. Both processes seem to be interconnected, following earlier apoptosis induction and deregulation of mitochondrial functions. We documented altered mitochondrial status, lowered ATP production, lowered mitochondrial mass, and changes in mitochondrial morphology (shortened and condensed mitochondria) both in melanoma and colorectal carcinoma cells. Overexpression of TNFα was not linked with significant affection of the subpopulation of cancer stem-like cells in vitro. However, we could demonstrate a decrease in aldehyde dehydrogenase (ALDH) activity up to 50%, which is associated with to the stemness phenotype. Conclusions Our in vitro study of direct TNFα influence demonstrates two distinct outcomes in tumor cells of different origin, in non-epithelial malignant melanoma cells of neural crest origin, and in colorectal carcinoma cells derived from the epithelium. Supplementary Information The online version contains supplementary material available at 10.1186/s12885-021-08237-1.
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Affiliation(s)
- Silvia Tyciakova
- Cancer Research Institute, Biomedical Research Center of Slovak Academy of Sciences, Dubravska cesta 9, 845 05, Bratislava, Slovakia.
| | - Valeria Valova
- Cancer Research Institute, Biomedical Research Center of Slovak Academy of Sciences, Dubravska cesta 9, 845 05, Bratislava, Slovakia.,Department of Genetics, Faculty of Natural Sciences, Comenius University, Mlynská dolina, Ilkovicova 6, 842 15, Bratislava, Slovakia
| | - Barbora Svitkova
- Cancer Research Institute, Biomedical Research Center of Slovak Academy of Sciences, Dubravska cesta 9, 845 05, Bratislava, Slovakia
| | - Miroslava Matuskova
- Cancer Research Institute, Biomedical Research Center of Slovak Academy of Sciences, Dubravska cesta 9, 845 05, Bratislava, Slovakia
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18
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Qi Y, Wang H, Chen X, Zhu Y. The role of TGF-β1/Smad3 signaling pathway and oxidative stress in the inhibition of osteoblast mineralization by copper chloride. ENVIRONMENTAL TOXICOLOGY AND PHARMACOLOGY 2021; 84:103613. [PMID: 33571669 DOI: 10.1016/j.etap.2021.103613] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/30/2020] [Revised: 01/31/2021] [Accepted: 02/04/2021] [Indexed: 06/12/2023]
Abstract
To explore the relationship of oxidative stress and TGF-β 1/Smad3 pathway in the inhibition of osteoblast mineralization by copper chloride (CuCl2), the osteoblasts were treated with CuCl2 (0, 50 μM, 100 μM, 150 μM CuCl2 5H2O) for 24 h. We found that Cu impaired the osteoblast structure, inhibited the glutathione peroxidase (GSH-Px) and superoxide dismutase (SOD) activities, alkaline phosphatase (ALP) content, mRNA expression of collagen I (COL-I), osteocalcin (OCN), insulin-like growth factor I (IGF-I), bone morphogenetic protein-2 (BMP-2), transforming growth factor β1 (TGF-β1) and core-binding factor α1 (Cbfα1), promoted the reactive oxygen species (ROS) production, inactivated the TGF-β1/Smad3 pathway. It indicates that the inactivated TGF-β1/Smad3 pathway leads to osteoblast impairment by CuCl2. It will contribute to clarify the influence of CuCl2 on the osteoblast mineralization.
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Affiliation(s)
- Yanping Qi
- College of Animal Science, Anhui Science and Technology University, Fengyang, 233100, China; Anhui Province Key Laboratory of Animal Nutritional Regulation and Health, Anhui Science and Technology University, Fengyang, 233100, China
| | - Honghai Wang
- Animal Health Quarantine Station of Daqing Agricultural and Rural Bureau, Daqing, 163000, China
| | - Xuelong Chen
- College of Animal Science, Anhui Science and Technology University, Fengyang, 233100, China; Anhui Province Key Laboratory of Animal Nutritional Regulation and Health, Anhui Science and Technology University, Fengyang, 233100, China.
| | - Yanzhu Zhu
- Key Laboratory of Special Animal Epidemic Disease, Ministry of Agriculture, Institute of Special Animal and Plant Sciences, Chinese Academy of Agricultural University, Changchun, 130112, China.
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19
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Guo YF, Su T, Yang M, Li CJ, Guo Q, Xiao Y, Huang Y, Liu Y, Luo XH. The role of autophagy in bone homeostasis. J Cell Physiol 2021; 236:4152-4173. [PMID: 33452680 DOI: 10.1002/jcp.30111] [Citation(s) in RCA: 38] [Impact Index Per Article: 12.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2020] [Revised: 09/24/2020] [Accepted: 10/05/2020] [Indexed: 12/15/2022]
Abstract
Autophagy is an evolutionarily conserved intracellular process and is considered one of the main catabolism pathways. In the process of autophagy, cells are digested nonselectively or selectively to recover nutrients and energy, so it is regarded as an antiaging process. In addition to the essential role of autophagy in cellular homeostasis, autophagy is a stress response mechanism for cell survival. Here, we review recent literature describing the pathway of autophagy and its role in different bone cell types, including osteoblasts, osteoclasts, and osteocytes. Also discussed is the mechanism of autophagy in bone diseases associated with bone homeostasis, including osteoporosis and Paget's disease. Finally, we discuss the application of autophagy regulators in bone diseases. This review aims to introduce autophagy, summarize the understanding of its relevance in bone physiology, and discuss its role and therapeutic potential in the pathogenesis of bone diseases such as osteoporosis.
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Affiliation(s)
- Yi-Fan Guo
- Department of Endocrinology, Endocrinology Research Center, Xiangya Hospital of Central South University, Changsha, Hunan, China
| | - Tian Su
- Department of Endocrinology, Endocrinology Research Center, Xiangya Hospital of Central South University, Changsha, Hunan, China
| | - Mi Yang
- Department of Endocrinology, Endocrinology Research Center, Xiangya Hospital of Central South University, Changsha, Hunan, China
| | - Chang-Jun Li
- Department of Endocrinology, Endocrinology Research Center, Xiangya Hospital of Central South University, Changsha, Hunan, China
| | - Qi Guo
- Department of Endocrinology, Endocrinology Research Center, Xiangya Hospital of Central South University, Changsha, Hunan, China
| | - Ye Xiao
- Department of Endocrinology, Endocrinology Research Center, Xiangya Hospital of Central South University, Changsha, Hunan, China
| | - Yan Huang
- Department of Endocrinology, Endocrinology Research Center, Xiangya Hospital of Central South University, Changsha, Hunan, China
| | - Ya Liu
- Department of Endocrinology, Endocrinology Research Center, Xiangya Hospital of Central South University, Changsha, Hunan, China
| | - Xiang-Hang Luo
- Department of Endocrinology, Endocrinology Research Center, Xiangya Hospital of Central South University, Changsha, Hunan, China.,National Clinical Research Center for Geriatric Disorders, Xiangya Hospital of Central South University, Changsha, Hunan, China
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20
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Shen HR, Xu X, Li XL. Berberine exerts a protective effect on rats with polycystic ovary syndrome by inhibiting the inflammatory response and cell apoptosis. Reprod Biol Endocrinol 2021; 19:3. [PMID: 33407557 PMCID: PMC7789273 DOI: 10.1186/s12958-020-00684-y] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/27/2020] [Accepted: 12/17/2020] [Indexed: 02/07/2023] Open
Abstract
BACKGROUND Polycystic ovary syndrome (PCOS) is a common endocrine disease of the female reproductive system that seriously affects women's health. Berberine (BBR) has many pharmacological properties and is used as an insulin sensitizer. This study aimed to investigate the effect of BBR on PCOS and explore its related mechanisms. METHODS Forty-two rats were randomly divided into the following six groups (n = 7 per group): control, control + BBR, PCOS-normal diet (ND), PCOS-ND + BBR, PCOS-high-fat diet (HFD), and PCOS-HFD + BBR. The PCOS rat models were established by injecting rats with dehydroepiandrosterone. Further, the rats were gavaged with BBR (150 mg/kg/d) for 6 weeks. Then, the body weight, HOMA-IR, and testosterone levels of all rats were determined. Cell apoptosis of ovary granulosa cells was determined by a TUNEL assay kit. Real-time quantification PCR (RT-qPCR) and western blotting were utilized to evaluate the expression of TLR4, LYN, PI3K, Akt, NF-kB, TNF-α, IL-1, IL-6, and caspase-3. RESULTS BBR reduced the levels of insulin resistance and testosterone in PCOS rats. Additionally, the cell apoptosis rate increased significantly in PCOS rats (P < 0.05) and decreased after BBR treatment (P < 0.05). The results of RT-qPCR and western blotting showed that the expression levels of TLR4, LYN, PI3K, Akt, NF-kB, TNF-α, IL-1, IL-6, and caspase-3 significantly increased in PCOS rats, while BBR suppressed their expression levels. CONCLUSIONS BBR may relieve PCOS pathology and IR values by inhibiting cell apoptosis and by regulating the expression levels of TLR4, LYN, PI3K, Akt, NF-kB, TNF-α, IL-1, IL-6, and caspase-3.
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Affiliation(s)
- Hao-Ran Shen
- Department of Gynecology, Obstetrics & Gynecology Hospital of Fudan University, No. 419 Fangxie Road, Shanghai, 200011, P.R. China
| | - Xiao Xu
- Department of Gynecology, Obstetrics & Gynecology Hospital of Fudan University, No. 419 Fangxie Road, Shanghai, 200011, P.R. China
| | - Xue-Lian Li
- Department of Gynecology, Obstetrics & Gynecology Hospital of Fudan University, No. 419 Fangxie Road, Shanghai, 200011, P.R. China.
- Shanghai Key Laboratory of Female Reproductive Endocrine-Related Diseases, No. 419 Fangxie Road, Shanghai, 200011, P.R. China.
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21
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Li X, Xu J, Dai B, Wang X, Guo Q, Qin L. Targeting autophagy in osteoporosis: From pathophysiology to potential therapy. Ageing Res Rev 2020; 62:101098. [PMID: 32535273 DOI: 10.1016/j.arr.2020.101098] [Citation(s) in RCA: 51] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2020] [Revised: 05/26/2020] [Accepted: 06/03/2020] [Indexed: 12/19/2022]
Abstract
Osteoporosis is a highly prevalent disorder characterized by the loss of bone mass and microarchitecture deterioration of bone tissue, attributed to various factors, including menopause (primary), aging (primary) and adverse effects of relevant medications (secondary). In recent decades, knowledge regarding the etiological mechanisms underpinning osteoporosis emphasizes that bone cellular homeostasis, including the maintenance of cell functions, differentiation, and the response to stress, is tightly regulated by autophagy, which is a cell survival mechanism for eliminating and recycling damaged proteins and organelles. With the important roles in the maintenance of cellular homeostasis and organ function, autophagy has emerged as a potential target for the prevention and treatment of osteoporosis. In this review, we update and discuss the pathophysiology of autophagy in normal bone cell life cycle and metabolism. Then, the alternations of autophagy in primary and secondary osteoporosis, and the accompanied pathological process are discussed. Finally, we discuss current strategies, limitations, and challenges involved in targeting relevant pathways and propose strategies by which such hurdles may be circumvented in the future for their translation into clinical validations and applications for the prevention and treatment of osteoporosis.
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22
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Zhang W, Dang K, Huai Y, Qian A. Osteoimmunology: The Regulatory Roles of T Lymphocytes in Osteoporosis. Front Endocrinol (Lausanne) 2020; 11:465. [PMID: 32849268 PMCID: PMC7431602 DOI: 10.3389/fendo.2020.00465] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/31/2019] [Accepted: 06/15/2020] [Indexed: 12/23/2022] Open
Abstract
Immune imbalance caused bone loss. Osteoimmunology is emerging as a new interdisciplinary field to explore the shared molecules and interactions between the skeletal and immune systems. In particular, T lymphocytes (T cells) play pivotal roles in the regulation of bone health. However, the roles and mechanisms of T cells in the treatment of osteoporosis are not fully understood. The present review aims to summarize the essential regulatory roles of T cells in the pathophysiology of various cases of osteoporosis and the development of T cell therapy for osteoporosis from osteoimmunology perspective. As T cell-mediated immunomodulation inhibition reduced bone loss, there is an increasing interest in T cell therapy in an attempt to treat osteoporosis. In summary, the T cell therapy may be further pursued as an immunomodulatory strategy for the treatment of osteoporosis, which can provide a novel perspective for drug development in the future.
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Affiliation(s)
- Wenjuan Zhang
- Lab for Bone Metabolism, Xi'an Key Laboratory of Special Medicine and Health Engineering, Key Lab for Space Biosciences and Biotechnology, Research Center for Special Medicine and Health Systems Engineering, NPU-UAB Joint Laboratory for Bone Metabolism, School of Life Sciences, Northwestern Polytechnical University, Xi'an, China
| | - Kai Dang
- Lab for Bone Metabolism, Xi'an Key Laboratory of Special Medicine and Health Engineering, Key Lab for Space Biosciences and Biotechnology, Research Center for Special Medicine and Health Systems Engineering, NPU-UAB Joint Laboratory for Bone Metabolism, School of Life Sciences, Northwestern Polytechnical University, Xi'an, China
| | - Ying Huai
- Lab for Bone Metabolism, Xi'an Key Laboratory of Special Medicine and Health Engineering, Key Lab for Space Biosciences and Biotechnology, Research Center for Special Medicine and Health Systems Engineering, NPU-UAB Joint Laboratory for Bone Metabolism, School of Life Sciences, Northwestern Polytechnical University, Xi'an, China
| | - Airong Qian
- Lab for Bone Metabolism, Xi'an Key Laboratory of Special Medicine and Health Engineering, Key Lab for Space Biosciences and Biotechnology, Research Center for Special Medicine and Health Systems Engineering, NPU-UAB Joint Laboratory for Bone Metabolism, School of Life Sciences, Northwestern Polytechnical University, Xi'an, China
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23
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Jia XB, Zhang Q, Xu L, Yao WJ, Wei L. Effect of Malus asiatica Nakai Leaf Flavonoids on the Prevention of Esophageal Cancer in C57BL/6J Mice by Regulating the IL-17 Signaling Pathway. Onco Targets Ther 2020; 13:6987-6996. [PMID: 32764989 PMCID: PMC7373410 DOI: 10.2147/ott.s261033] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2020] [Accepted: 06/26/2020] [Indexed: 12/21/2022] Open
Abstract
Background The aim of this study was to observe the preventive effect of flavonoids extracted from Malus asiatica Nakai leaves (FMANL) on esophageal cancer in mice, especially the ability of FMANL to regulate the interleukin 17 (IL-17) signaling pathway during this process. Materials and Methods The C57BL/6J mice were treated with 4-nitroquinoline N-oxide (4NQO) to induce esophageal cancer, and the visceral tissue index and the serum and esophageal tissue indexes of mice were used to verify the effect of FMANL. Results The experimental results showed that FMANL can effectively control the changes in visceral tissue caused by esophageal cancer. FMANL could increase the cytokine levels of interleukin 10 (IL-10), monocyte chemotactic protein 1 (MCP-1) and decrease the cytokine levels of tumor necrosis factor alpha (TNF-α), interferon-γ (IFN-γ), interleukin 6 (IL-6), and interleukin 12p70 (IL-12p70) in serum of mice with esophageal cancer. FMANL could also reduce CD3+, CD4+, and CD8+ and enhance CD19+ mouse peripheral blood lymphocytes. The results of qPCR and Western blot analysis showed that FMANL could down-regulate the mRNA and protein expression levels of IL-17, interleukin 23 (IL-23), interleukin 1 beta (IL-1β), chemokine (C-X-C) ligand 1 (CXCL1), chemokine (C-X-C) ligand 2 (CXCL2), S100 calcium-binding protein A8 (S100A8), S100 calcium-binding protein A9 (S100A9), matrix metalloprotein 9 (MMP-9), and matrix metalloprotein 13 (MMP-1) in mice with esophageal cancer. High-performance liquid chromatography (HPLC) detection showed that FMANL contained 10 chemicals, including rutin, hyperoside, isoquercitrin, dihydroquercetin, quercitrin, hesperidin, myricetin, baicalin, neohesperidin dihydrochalcone, and quercetin. Conclusion It could be concluded that FMANL can effectively prevent experimentally induced esophageal cancer in mice, and its effects might be obtained from 10 compounds present in FMANL.
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Affiliation(s)
- Xiang-Bo Jia
- Department of Thoracic Surgery, Zhengzhou Key Laboratory of Surgical Treatment for End-Stage Lung Diseases, Henan Provincial People's Hospital, People's Hospital of Zhengzhou University, Zhengzhou 450003, Henan, People's Republic of China
| | - Quan Zhang
- Department of Thoracic Surgery, Zhengzhou Key Laboratory of Surgical Treatment for End-Stage Lung Diseases, Henan Provincial People's Hospital, People's Hospital of Zhengzhou University, Zhengzhou 450003, Henan, People's Republic of China
| | - Lei Xu
- Department of Thoracic Surgery, Zhengzhou Key Laboratory of Surgical Treatment for End-Stage Lung Diseases, Henan Provincial People's Hospital, People's Hospital of Zhengzhou University, Zhengzhou 450003, Henan, People's Republic of China
| | - Wen-Jian Yao
- Department of Thoracic Surgery, Zhengzhou Key Laboratory of Surgical Treatment for End-Stage Lung Diseases, Henan Provincial People's Hospital, People's Hospital of Zhengzhou University, Zhengzhou 450003, Henan, People's Republic of China
| | - Li Wei
- Department of Thoracic Surgery, Zhengzhou Key Laboratory of Surgical Treatment for End-Stage Lung Diseases, Henan Provincial People's Hospital, People's Hospital of Zhengzhou University, Zhengzhou 450003, Henan, People's Republic of China
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Zheng LW, Wang WC, Mao XZ, Luo YH, Tong ZY, Li D. TNF-α regulates the early development of avascular necrosis of the femoral head by mediating osteoblast autophagy and apoptosis via the p38 MAPK/NF-κB signaling pathway. Cell Biol Int 2020; 44:1881-1889. [PMID: 32437045 DOI: 10.1002/cbin.11394] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2019] [Revised: 04/23/2020] [Accepted: 05/18/2020] [Indexed: 01/16/2023]
Abstract
Previous studies have shown that the tumor necrosis factor-α (TNF-α) levels in serum and bone tissues formed in avascular necrosis of femoral head (ANFH) patients were higher than those of normal individuals, indicating TNF-α might play a role in the pathogenesis of ANFH. However, the underlying mechanisms remain unclear. Hematoxylin and eosin staining was performed to show the pathological changes of ANFH bone tissues. TNF-α expression in normal and ANFH tissues was examined by quantitative real-time polymerase chain reaction and western blot analyses. Osteoblast autophagy and apoptosis, as well as signaling pathways activation, were measured by their corresponding marker proteins. Osteoblast proliferation, autophagy, and apoptosis were evaluated using cell counting kit-8, transmission electron microscopy, and flow cytometry. The structures of bone tissues of ANFH were obviously damaged. TNF-α expression was significantly upregulated in ANFH bone tissues compared to normal tissues. Autophagy and apoptosis were remarkably promoted, and p38 mitogen-activated protein kinase (MAPK)/nuclear factor-κB (NF-κB) signaling pathways were markedly activated in ANFH. Suppression of the p38 MAPK/NF-κB pathway significantly attenuated the TNF-α-induced autophagy, however, enhanced the TNF-α-induced apoptosis in osteoblasts. Increased TNF-α in ANFH regulated osteoblast autophagy and apoptosis by p38 MAPK/NF-κB signaling pathways, blocking the pathway by inhibitors exacerbated TNF-α-induced apoptosis through impairing autophagy flux.
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Affiliation(s)
- Li-Wen Zheng
- Department of Orthopedics, The Second Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Wan-Chun Wang
- Department of Orthopedics, The Second Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Xin-Zhan Mao
- Department of Orthopedics, The Second Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Yong-Heng Luo
- Department of Radiology, The Second Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Zhong-Yi Tong
- Department of Pathology, The Second Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Ding Li
- Department of Orthopedics, The Second Xiangya Hospital, Central South University, Changsha, Hunan, China
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Wongtrakul W, Charoenngam N, Ungprasert P. The association between irritable bowel syndrome and osteoporosis: a systematic review and meta-analysis. Osteoporos Int 2020; 31:1049-1057. [PMID: 32008157 DOI: 10.1007/s00198-020-05318-y] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/25/2019] [Accepted: 01/23/2020] [Indexed: 12/17/2022]
Abstract
BACKGROUND Recent studies have suggested that irritable bowel syndrome (IBS) could be a risk factor for osteoporosis although the evidence is still limited. The current study aimed to comprehensively examine the risk of osteoporosis among patients with IBS using systematic review and meta-analysis technique. METHODOLOGY Literature search was independently conducted by two investigators using MEDLINE, EMBASE, and Google Scholar database up to October 2019. Eligible study must evaluate whether patients with IBS have a higher risk of osteoporosis and/or osteoporotic fracture. It could be either cross-sectional study, case-control study, or cohort study. Point estimates and standard errors from each eligible study were combined together using the generic inverse variance method of DerSimonian and Laird. RESULTS Of the 320 articles identified from the three databases, four cohort and one cross-sectional study with 526,633 participants met the eligibility criteria and were included into the meta-analysis. All five studies investigated the risk of osteoporosis among patients with IBS, and the pooled analysis found that patients with IBS had a significantly higher risk of osteoporosis than individuals without IBS with the pooled risk ratio of 1.95 (95% CI, 1.04-3.64; I2 100%). Sensitivity analysis including only cohort studies found a lower RR (pooled RR 1.55; 95% CI, 1.39-1.72) with a lower I2 (59%). Three studies investigated the risk of osteoporotic fracture, and the pooled analysis found that patients with IBS also had a higher risk of osteoporotic fracture than individuals without IBS with the pooled risk ratio of 1.58 although statistical significance was not reached (95% CI, 0.95-2.62; I2 99%). Sensitivity analysis including only cohort studies found a lower RR (pooled RR 1.27; 95% CI, 1.20-1.39) with a dramatically lower I2 (0%). Limitations included high heterogeneity and reliance on diagnostic codes. CONCLUSION A significantly increased risk of osteoporosis among IBS patients was observed in this study. Early intervention to prevent the development of osteoporosis, such as weight-bearing exercise, adequate intake of vitamin D and calcium, and early screening for osteoporosis, may be beneficial to these patients although further studies are still required to confirm the efficacy and cost-effectiveness of this approach.
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Affiliation(s)
- W Wongtrakul
- Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, Thailand
| | - N Charoenngam
- Department of Internal Medicine, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, Thailand
| | - P Ungprasert
- Department of Rheumatic and Immunologic Diseases, Cleveland Clinic, Cleveland, OH, USA.
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Shahen VA, Gerbaix M, Koeppenkastrop S, Lim SF, McFarlane KE, Nguyen ANL, Peng XY, Weiss NB, Brennan-Speranza TC. Multifactorial effects of hyperglycaemia, hyperinsulinemia and inflammation on bone remodelling in type 2 diabetes mellitus. Cytokine Growth Factor Rev 2020; 55:109-118. [PMID: 32354674 DOI: 10.1016/j.cytogfr.2020.04.001] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2020] [Accepted: 04/08/2020] [Indexed: 12/14/2022]
Abstract
Bones undergo continuous cycles of bone remodelling that rely on the balance between bone formation and resorption. This balance allows the bone to adapt to changes in mechanical loads and repair microdamages. However, this balance is susceptible to upset in various conditions, leading to impaired bone remodelling and abnormal bones. This is usually indicated by abnormal bone mineral density (BMD), an indicator of bone strength. Despite this, patients with type 2 diabetes mellitus (T2DM) exhibit normal to high BMD, yet still suffer from an increased risk of fractures. The activity of the bone cells is also altered as indicated by the reduced levels of bone turnover markers in T2DM observed in the circulation. The underlying mechanisms behind these skeletal outcomes in patients with T2DM remain unclear. This review summarises recent findings regarding inflammatory cytokine factors associated with T2DM to understand the mechanisms involved and considers potential therapeutic interventions.
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Affiliation(s)
- V A Shahen
- Department of Physiology, School of Medical Sciences, Faculty of Medicine and Health, The University of Sydney, Australia
| | - M Gerbaix
- Division of Bone Diseases, Department of Internal Medicine Specialties, Geneva University Hospital & Faculty of Medicine, Geneva, Switzerland
| | - S Koeppenkastrop
- Department of Physiology, School of Medical Sciences, Faculty of Medicine and Health, The University of Sydney, Australia
| | - S F Lim
- Department of Physiology, School of Medical Sciences, Faculty of Medicine and Health, The University of Sydney, Australia
| | - K E McFarlane
- Department of Physiology, School of Medical Sciences, Faculty of Medicine and Health, The University of Sydney, Australia
| | - Amanda N L Nguyen
- Department of Physiology, School of Medical Sciences, Faculty of Medicine and Health, The University of Sydney, Australia
| | - X Y Peng
- Department of Physiology, School of Medical Sciences, Faculty of Medicine and Health, The University of Sydney, Australia
| | - N B Weiss
- Department of Physiology, School of Medical Sciences, Faculty of Medicine and Health, The University of Sydney, Australia
| | - T C Brennan-Speranza
- Department of Physiology, School of Medical Sciences, Faculty of Medicine and Health, The University of Sydney, Australia; School of Public Health, Faculty of Medicine and Health, The University of Sydney, Australia.
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Axin 1 knockdown inhibits osteoblastic apoptosis induced by Porphyromonas gingivalis lipopolysaccharide. Arch Oral Biol 2020; 112:104667. [PMID: 32092441 DOI: 10.1016/j.archoralbio.2020.104667] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2019] [Revised: 12/23/2019] [Accepted: 01/21/2020] [Indexed: 12/29/2022]
Abstract
BACKGROUND Porphyromonas gingivalis (Pg) is one of the pathogenic bacteria that cause periodontal diseases, lipopolysaccharide (LPS) is the key factor that triggers alveolar bone absorption. This study explored the action of Axin 1 on Pg-LPS-induced osteoblasts injury, so as to search a possible treatment for periodontal diseases. METHODS Rat osteoblasts were dealt with Pg-LPS and Axin 1 knockdown alone or in combination. The effect of Pg-LPS and Axin 1 on osteoblast viability and apoptosis were detected by Cell Counting Kit-8 and flow cytometry. The expressions of alkaline phosphatase (ALP) and Axin 1 in processed osteoblasts were measured by western blot (WB) and quantitative real-time polymerase chain reaction (qRT-PCR) assays. Furthermore, the role of Axin 1 knockdown in the levels of inflammatory cytokines and apoptosis-related proteins were also determined. RESULTS Pg-LPS inhibited the viability of osteoblasts and promote apoptosis with concentration and time dependence. ALP expression in Pg-LPS-treated osteoblasts was reduced, while Axin 1 expression was increased. On the one hand, Axin 1 knockdown reversed the Pg-LPS-induced reduction of cell activity and pro-apoptosis effect. On the other hand, Axin 1 knockdown not only improved the ALP activity of Pg-LPS-treated cells, but also reduced the elevation of inflammatory cytokines (TNF-α, IL-1β and IL-6) caused by Pg-LPS. Moreover, Pg-LPS increased the expressions of cleaved Caspase-3 and Bax, and inhibited Bcl-2 expressed, which was rescued by Axin 1 knockdown. CONCLUSION Axin 1 knockdown inhibited Pg-LPS-induced osteoblastic apoptosis by regulating the levels of inflammatory cytokines, which may be helpful for the treatment of periodontal diseases.
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Kruglikov IL, Scherer PE. Caveolin as a Universal Target in Dermatology. Int J Mol Sci 2019; 21:E80. [PMID: 31877626 PMCID: PMC6981867 DOI: 10.3390/ijms21010080] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2019] [Revised: 12/14/2019] [Accepted: 12/18/2019] [Indexed: 02/07/2023] Open
Abstract
Caveolin-1 is strongly expressed in different dermal and subdermal cells and physically interacts with signaling molecules and receptors, among them with transforming growth factor beta (TGF-β), matrix metalloproteinases, heat shock proteins, toll-like and glucocorticoid receptors. It should therefore be heavily involved in the regulation of cellular signaling in various hyperproliferative and inflammatory skin conditions. We provide an overview of the role of the caveolin-1 expression in different hyperproliferative and inflammatory skin diseases and discuss its possible active involvement in the therapeutic effects of different well-known drugs widely applied in dermatology. We also discuss the possible role of caveolin expression in development of the drug resistance in dermatology. Caveolin-1 is not only an important pathophysiological factor in different hyperproliferative and inflammatory dermatological conditions, but can also serve as a target for their treatment. Targeted regulation of caveolin is likely to serve as a new treatment strategy in dermatology.
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Affiliation(s)
| | - Philipp E. Scherer
- Touchstone Diabetes Center, Department of Internal Medicine, University of Texas Southwestern Medical Center, Dallas, TX 75390-8549, USA
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Zheng X, Yu Y, Shao B, Gan N, Chen L, Yang D. Osthole improves therapy for osteoporosis through increasing autophagy of mesenchymal stem cells. Exp Anim 2019; 68:453-463. [PMID: 31155553 PMCID: PMC6842796 DOI: 10.1538/expanim.18-0178] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2018] [Accepted: 04/11/2019] [Indexed: 12/27/2022] Open
Abstract
Osteoporosis is a common skeletal disorder resulting in elevated fracture risk. Improvement of osteogenic differentiation is thought to be the top priority in osteoporosis treatment projects. Significant characteristics of bone marrow mesenchymal stem cells (BMMSCs), especially attractive ability to differentiate into osteoblasts, have made them alternatives for osteoporosis treatment. However, therapeutic effect with BMMSCs remains to be improved. Here, osthole, a bioactive simple coumarin derivative extracted from many medicinal plants, was introduced to pre-stimulate BMMSCs and then applied in osteoporosis therapy. The results showed that osthole-treated-BMMSCs (OBMMSCs) brought a better outcome than BMMSCs alone in estrogen deficiency-induced osteoporosis model. And elevated autophagy level was suggested to be the underlying mechanism of the ability of osthole to promote osteoblast differentiation, which is indicated by the upregulation of protein and mRNA expression level of autophagy-associated genes, Beclin1 and LC3. We concluded from these experiments that OBMMSCs are more effective than BMMSCs in osteoporosis treatment maybe through upregulation level of autophagy level induced by osthole.
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Affiliation(s)
- Xuedan Zheng
- Department of Endodontics, Stomatological Hospital of Chongqing Medical University, No. 426 Songshi Bei Road, Yubei, 401147 Chongqing, China
- Chongqing Key Laboratory of Oral Diseases and Biomedical Sciences, No. 426 Songshi Bei Road, Yubei, 401147 Chongqing, China
- Chongqing Municipal Key Laboratory of Oral Biomedical Engineering of Higher Education, No. 426 Songshi Bei Road, Yubei, 401147 Chongqing, China
| | - Yang Yu
- Department of Endodontics, Stomatological Hospital of Chongqing Medical University, No. 426 Songshi Bei Road, Yubei, 401147 Chongqing, China
- Chongqing Key Laboratory of Oral Diseases and Biomedical Sciences, No. 426 Songshi Bei Road, Yubei, 401147 Chongqing, China
- Chongqing Municipal Key Laboratory of Oral Biomedical Engineering of Higher Education, No. 426 Songshi Bei Road, Yubei, 401147 Chongqing, China
| | - Binyi Shao
- Department of Endodontics, Stomatological Hospital of Chongqing Medical University, No. 426 Songshi Bei Road, Yubei, 401147 Chongqing, China
- Chongqing Key Laboratory of Oral Diseases and Biomedical Sciences, No. 426 Songshi Bei Road, Yubei, 401147 Chongqing, China
- Chongqing Municipal Key Laboratory of Oral Biomedical Engineering of Higher Education, No. 426 Songshi Bei Road, Yubei, 401147 Chongqing, China
| | - Ning Gan
- Department of Endodontics, Stomatological Hospital of Chongqing Medical University, No. 426 Songshi Bei Road, Yubei, 401147 Chongqing, China
- Chongqing Key Laboratory of Oral Diseases and Biomedical Sciences, No. 426 Songshi Bei Road, Yubei, 401147 Chongqing, China
- Chongqing Municipal Key Laboratory of Oral Biomedical Engineering of Higher Education, No. 426 Songshi Bei Road, Yubei, 401147 Chongqing, China
| | - Liang Chen
- Department of Endodontics, Stomatological Hospital of Chongqing Medical University, No. 426 Songshi Bei Road, Yubei, 401147 Chongqing, China
- Chongqing Key Laboratory of Oral Diseases and Biomedical Sciences, No. 426 Songshi Bei Road, Yubei, 401147 Chongqing, China
- Chongqing Municipal Key Laboratory of Oral Biomedical Engineering of Higher Education, No. 426 Songshi Bei Road, Yubei, 401147 Chongqing, China
| | - Deqin Yang
- Department of Endodontics, Stomatological Hospital of Chongqing Medical University, No. 426 Songshi Bei Road, Yubei, 401147 Chongqing, China
- Chongqing Key Laboratory of Oral Diseases and Biomedical Sciences, No. 426 Songshi Bei Road, Yubei, 401147 Chongqing, China
- Chongqing Municipal Key Laboratory of Oral Biomedical Engineering of Higher Education, No. 426 Songshi Bei Road, Yubei, 401147 Chongqing, China
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30
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Autophagy in bone homeostasis and the onset of osteoporosis. Bone Res 2019; 7:28. [PMID: 31666998 PMCID: PMC6804951 DOI: 10.1038/s41413-019-0058-7] [Citation(s) in RCA: 118] [Impact Index Per Article: 23.6] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2019] [Revised: 05/28/2019] [Accepted: 06/02/2019] [Indexed: 02/06/2023] Open
Abstract
Autophagy is an evolutionarily conserved intracellular process, in which domestic cellular components are selectively digested for the recycling of nutrients and energy. This process is indispensable for cell homeostasis maintenance and stress responses. Both genetic and functional studies have demonstrated that multiple proteins involved in autophagic activities are critical to the survival, differentiation, and functioning of bone cells, including osteoblasts, osteocytes, and osteoclasts. Dysregulation at the level of autophagic activity consequently disturbs the balance between bone formation and bone resorption and mediates the onset and progression of multiple bone diseases, including osteoporosis. This review aims to introduce the topic of autophagy, summarize the understanding of its relevance in bone physiology, and discuss its role in the onset of osteoporosis and therapeutic potential.
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Karunakaran I, Alam S, Jayagopi S, Frohberger SJ, Hansen JN, Kuehlwein J, Hölbling BV, Schumak B, Hübner MP, Gräler MH, Halle A, van Echten-Deckert G. Neural sphingosine 1-phosphate accumulation activates microglia and links impaired autophagy and inflammation. Glia 2019; 67:1859-1872. [PMID: 31231866 DOI: 10.1002/glia.23663] [Citation(s) in RCA: 55] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2018] [Revised: 06/04/2019] [Accepted: 06/05/2019] [Indexed: 02/06/2023]
Abstract
Microglia mediated responses to neuronal damage in the form of neuroinflammation is a common thread propagating neuropathology. In this study, we investigated the microglial alterations occurring as a result of sphingosine 1-phosphate (S1P) accumulation in neural cells. We evidenced increased microglial activation in the brains of neural S1P-lyase (SGPL1) ablated mice (SGPL1fl/fl/Nes ) as shown by an activated and deramified morphology and increased activation markers on microglia. In addition, an increase of pro-inflammatory cytokines in sorted and primary cultured microglia generated from SGPL1 deficient mice was noticed. Further, we assessed autophagy, one of the major mechanisms in the brain that keeps inflammation in check. Indeed, microglial inflammation was accompanied by defective microglial autophagy in SGPL1 ablated mice. Rescuing autophagy by treatment with rapamycin was sufficient to decrease interleukin 6 (IL-6) but not tumor necrosis factor (TNF) secretion in cultured microglia. Rapamycin mediated decrease of IL-6 secretion suggests a particular mechanistic target of rapamycin (mTOR)-IL-6 link and appeared to be microglia specific. Using pharmacological inhibitors of the major receptors of S1P expressed in the microglia, we identified S1P receptor 2 (S1PR2) as the mediator of both impaired autophagy and proinflammatory effects. In line with these results, the addition of exogenous S1P to BV2 microglial cells showed similar effects as those observed in the genetic knock out of SGPL1 in the neural cells. In summary, we show a novel role of the S1P-S1PR2 axis in the microglia of mice with neural-targeted SGPL1 ablation and in BV2 microglial cell line exogenously treated with S1P.
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Affiliation(s)
- Indulekha Karunakaran
- LIMES Institute, Membrane Biology & Lipid Biochemistry, University of Bonn, Germany.,Institute for Medical Microbiology, Immunology and Parasitology, University Hospital of Bonn, Bonn, Germany
| | - Shah Alam
- LIMES Institute, Membrane Biology & Lipid Biochemistry, University of Bonn, Germany
| | - Surendar Jayagopi
- Institute for Medical Microbiology, Immunology and Parasitology, University Hospital of Bonn, Bonn, Germany
| | - Stefan J Frohberger
- Institute for Medical Microbiology, Immunology and Parasitology, University Hospital of Bonn, Bonn, Germany
| | - Jan N Hansen
- German Center for Neurodegenerative Diseases, DZNE, Bonn, Germany and Center of Advanced European Studies and Research, Bonn, Germany
| | - Janina Kuehlwein
- Institute for Medical Microbiology, Immunology and Parasitology, University Hospital of Bonn, Bonn, Germany
| | - Benedikt V Hölbling
- German Center for Neurodegenerative Diseases, DZNE, Bonn, Germany and Center of Advanced European Studies and Research, Bonn, Germany
| | - Beatrix Schumak
- Institute for Medical Microbiology, Immunology and Parasitology, University Hospital of Bonn, Bonn, Germany
| | - Marc P Hübner
- Institute for Medical Microbiology, Immunology and Parasitology, University Hospital of Bonn, Bonn, Germany
| | - Markus H Gräler
- Department of Anaesthesiology and Intensive Care Medicine, Center for Sepsis Control and Care (CSCC), and the Center for Molecular Biomedicine (CMB), Jena University Hospital, Jena, Germany
| | - Annett Halle
- German Center for Neurodegenerative Diseases, DZNE, Bonn, Germany and Center of Advanced European Studies and Research, Bonn, Germany
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Ji X, Xu F, Dong G, Jia C, Jia P, Chen H, Tang H. Loading necrostatin-1 composite bone cement inhibits necroptosis of bone tissue in rabbit. Regen Biomater 2019; 6:113-119. [PMID: 30967966 PMCID: PMC6447002 DOI: 10.1093/rb/rbz004] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2018] [Revised: 12/19/2018] [Accepted: 01/01/2019] [Indexed: 01/16/2023] Open
Abstract
Bone necrosis after injecting of polymethylmethacrylate (PMMA) bone cement will lead to re-fracture of bone tissue. As a new type of necrosis, there is little research related to the necroptosis of surrounding bone tissue near the bone cement. The purpose of our study was to (i) investigate the presence of necroptosis in vivo and, (ii) established as a new type of bone cement containing PMMA, calcium phosphate cement (CPC) and Necrostatin-1 (Nec-1) to inhibit necroptosis of bone tissue. A total of 12 Japanese rabbits were used to establish the animal model and randomly divided into 4 groups signed as a control group, PMMA group, PMMA-CPC group and PMMA-CPC-Nec-1 group, respectively. We used scanning electron microscope to observe the structure of the samples, used HE staining to detect the necrosis, and used western blotting as well as ELISA test to examine the iconic molecule receptor interacting protein kinase-3 (RIP 3) protein and tumor necrosis factor α (TNF-α). After analyzing the results of our study, we found that the structure in both PMMA bone cement group and composite bone cement group was damaged and there was an evidence of necrosis, but it was absent in control group. Through molecule detection, the RIP 3 protein expression was decreased in PMMA-CPC-Nec-1 (P < 0.05). TNF-α expression was increased in bone cement groups with and without CPC (P < 0.05), but was inhibited in PMMA-CPC-Nec-1 group. We have concluded that the necroptosis could be confirmed in bone tissue necrosis induced by TNF-α after bone cement injection and also could be inhibited by composite bone cement with Nec-1.
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Affiliation(s)
- Xiang Ji
- Department of Orthopedics, Beijing Friendship Hospital, Capital Medical University, No. 95, Yong’an Road, Xicheng District, Beijing, China
| | - Feng Xu
- Department of Orthopedics, Beijing Friendship Hospital, Capital Medical University, No. 95, Yong’an Road, Xicheng District, Beijing, China
| | - Guoling Dong
- Department of Orthopedics, Beijing Friendship Hospital, Capital Medical University, No. 95, Yong’an Road, Xicheng District, Beijing, China
| | - Chongzhe Jia
- Department of Orthopedics, Beijing Friendship Hospital, Capital Medical University, No. 95, Yong’an Road, Xicheng District, Beijing, China
| | - Pu Jia
- Department of Orthopedics, Beijing Friendship Hospital, Capital Medical University, No. 95, Yong’an Road, Xicheng District, Beijing, China
| | - Hao Chen
- Department of Orthopedics, Beijing Friendship Hospital, Capital Medical University, No. 95, Yong’an Road, Xicheng District, Beijing, China
| | - Hai Tang
- Department of Orthopedics, Beijing Friendship Hospital, Capital Medical University, No. 95, Yong’an Road, Xicheng District, Beijing, China
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Shi G, Jia P, Chen H, Bao L, Feng F, Tang H. Necroptosis occurs in osteoblasts during tumor necrosis factor-α stimulation and caspase-8 inhibition. ACTA ACUST UNITED AC 2018; 52:e7844. [PMID: 30484493 PMCID: PMC6262749 DOI: 10.1590/1414-431x20187844] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2018] [Accepted: 09/21/2018] [Indexed: 12/11/2022]
Abstract
Necroptosis is a regulated cell death mechanism. However, it is unknown whether necroptosis is involved in the death of tumor necrosis factor-α (TNF-α)-treated osteoblasts. Therefore, we conducted the study with TNF-α, Nec-1 (a specific inhibitor of necroptosis), and Z-IETD-FMK (a specific inhibitor of apoptosis) to determine whether necroptosis plays a role in the death of TNF-α-treated osteoblast cell line MC3T3-E1. Cell viability, cell death, and lactate dehydrogenase (LDH) release were assayed to evaluate cytotoxicity. Specific marker proteins receptor interacting protein kinase (RIPK3) and phosphorylated mixed lineage kinase domain-like protein (p-MLKL) for necroptosis, and cleaved caspase 3 for apoptosis were detected by western blot, and mRNA was measured by quantitative real-time polymerase chain reaction (qRT-PCR). We found that TNF-α inhibited cell proliferation in a dose- and time-dependent manner. Nec-1 plus Z-IETD-FMK restored cell viability and significantly decreased LDH release. In addition, TNF-α alone increased the cell population of AV+PI−, while Z-IETD-FMK caused a shift in the cell population from AV+PI− to AV+PI+. Furthermore, TNF-α significantly increased protein cleaved caspase 3. TNF-α plus Z-IETD-FMK significantly increased the proteins RIPK3 and MLKL phosphorylation in MC3T3-E1 cells, while the changes in mRNA levels of RIPK3, MLKL, and caspase 3 were not consistent with the changes in the corresponding protein expression levels. In conclusion, TNF-α induced preferentially apoptosis in osteoblast cell line and necroptosis played a decisive role when TNF-α-induced death was inhibited by the inhibitor of apoptosis. Combined treatment with Nec-1 and Z-IETD-FMK protected mouse osteoblasts from death induced by TNF-α.
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Affiliation(s)
- Guan Shi
- Department of Orthopedics, Beijing Friendship Hospital, Capital Medical University, Beijing, China
| | - Pu Jia
- Department of Orthopedics, Beijing Friendship Hospital, Capital Medical University, Beijing, China
| | - Hao Chen
- Department of Orthopedics, Beijing Friendship Hospital, Capital Medical University, Beijing, China
| | - Li Bao
- Department of Orthopedics, Beijing Friendship Hospital, Capital Medical University, Beijing, China
| | - Fei Feng
- Department of Orthopedics, Beijing Friendship Hospital, Capital Medical University, Beijing, China
| | - Hai Tang
- Department of Orthopedics, Beijing Friendship Hospital, Capital Medical University, Beijing, China
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34
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Simão M, Camacho A, Ostertag A, Cohen-Solal M, Pinto IJ, Porto G, Hang Korng E, Cancela ML. Iron-enriched diet contributes to early onset of osteoporotic phenotype in a mouse model of hereditary hemochromatosis. PLoS One 2018; 13:e0207441. [PMID: 30427936 PMCID: PMC6241130 DOI: 10.1371/journal.pone.0207441] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2018] [Accepted: 10/31/2018] [Indexed: 01/12/2023] Open
Abstract
Osteoporosis is associated with chronic iron overload secondary to hereditary hemochromatosis (HH), but the causative mechanisms are incompletely understood. The main objective of this study was to investigate the role of dietary iron on osteoporosis, using as biological model the Hfe-KO mice, which have a systemic iron overload. We showed that these mice show an increased susceptibility for developing a bone loss phenotype compared to WT mice, which can be exacerbated by an iron rich diet. The dietary iron overload caused an increase in inflammation and iron incorporation within the trabecular bone in both WT and Hfe-KO mice. However, the osteoporotic phenotype was only evident in Hfe-KO mice fed the iron-enriched diet. This appeared to result from an imbalance between bone formation and bone resorption driven by iron toxicity associated to Hfe-KO and confirmed by a decrease in bone microarchitecture parameters (identified by micro-CT) and osteoblast number. These findings were supported by the observed downregulation of bone metabolism markers and upregulation of ferritin heavy polypeptide 1 (Fth1) and transferrin receptor-1 (Tfrc), which are associated with iron toxicity and bone loss phenotype. In WT mice the iron rich diet was not enough to promote a bone loss phenotype, essentially due to the concomitant depression of bone resorption observed in those animals. In conclusion the dietary challenge influences the development of osteoporosis in the HH mice model thus suggesting that the iron content in the diet may influence the osteoporotic phenotype in systemic iron overload conditions.
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Affiliation(s)
- Márcio Simão
- PhD Program in Biomedical Sciences, Department of Biomedical Sciences and Medicine (DCBM), University of Algarve, Faro, Portugal
- Centre of Marine Sciences (CCMAR), University of Algarve, Faro, Portugal
| | - António Camacho
- Department of Orthopedics, Hospital de Cascais, Alcabideche, Portugal
| | - Agnès Ostertag
- Inserm U1132, Bioscar, Hôpital Lariboisiére, pôle locomoteur, service de rhumatologie, Université Paris 7 Denis Diderot, Paris, France
| | - Martine Cohen-Solal
- Inserm U1132, Bioscar, Hôpital Lariboisiére, pôle locomoteur, service de rhumatologie, Université Paris 7 Denis Diderot, Paris, France
| | - I. Jorge Pinto
- Basic and Clinical Research on Iron Biology, Institute for Molecular and Cell Biology (IBMC) and I3S –Instituto de Investigação e Inovação em Saúde, University of Porto, Porto, Portugal
| | - Graça Porto
- Basic and Clinical Research on Iron Biology, Institute for Molecular and Cell Biology (IBMC) and I3S –Instituto de Investigação e Inovação em Saúde, University of Porto, Porto, Portugal
- Pathology and Molecular Immunology Department, Institute of Biomedical Sciences Abel Salazar (ICBAS), University of Porto, Porto, Portugal
- Hematology Service, Hospital de Santo António, Centro Hospitalar do Porto, Porto, Portugal
| | - Ea Hang Korng
- Inserm U1132, Bioscar, Hôpital Lariboisiére, pôle locomoteur, service de rhumatologie, Université Paris 7 Denis Diderot, Paris, France
| | - M. Leonor Cancela
- Centre of Marine Sciences (CCMAR), University of Algarve, Faro, Portugal
- Pathology and Molecular Immunology Department, Institute of Biomedical Sciences Abel Salazar (ICBAS), University of Porto, Porto, Portugal
- Department of Biomedical Sciences and Medicine (DCBM), University of Algarve, Faro, Portugal
- Algarve Biomedical Center, University of Algarve, Campus de Gambelas, Faro, Portugal
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35
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Simon D, Kampylafka E, Hueber AJ. Neue molekulare Mechanismen in der Pathophysiologie der Psoriasisarthritis. Z Rheumatol 2018; 77:776-782. [DOI: 10.1007/s00393-018-0503-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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36
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Picke AK, Campbell GM, Schmidt FN, Busse B, Rauner M, Simon JC, Anderegg U, Hofbauer LC, Saalbach A. Thy-1 Deficiency Augments Bone Loss in Obesity by Affecting Bone Formation and Resorption. Front Cell Dev Biol 2018; 6:127. [PMID: 30333974 PMCID: PMC6176687 DOI: 10.3389/fcell.2018.00127] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2018] [Accepted: 09/13/2018] [Indexed: 12/30/2022] Open
Abstract
Healthy bone remodeling results from a balanced bone formation and bone resorption realized by bone-forming osteoblasts and bone-resorbing osteoclasts, respectively. Recently, Thy-1 (CD90) was identified as positive regulator of osteoblast differentiation and activation, thus, promoting bone formation while concurrently inhibiting adipogenesis and obesity in mice. Additionally, Thy-1 did not affect bone resorption. An obesity-related co-morbidity that is increasing in prevalence is a disturbed bone formation resulting in an increased fracture risk. The underlying mechanisms of obesity-induced bone alterations are not yet fully elucidated and therefore therapy options for efficient bone-anabolic treatments are limited. Therefore, we investigated the impact of Thy-1 on bone metabolism under obese conditions. Indeed, high fat diet (HFD) induced obese mice lacking Thy-1 (Thy-1−/−) showed increased body fat mass compared to wildtype (WT) mice while bone mass (−38%) and formation (−57%) were decreased as shown by micro-computed tomography (μCT) measurement, histological analysis, and fourier-transform infrared spectroscopy (FTIR). Interestingly, under obese conditions, lack of Thy-1 affected both osteoblast and osteoclast function. Number (−30%) and activity of osteoblasts were decreased in obese Thy-1−/− mice while osteoclast number (+39%) and activity were increased. Facilitated bone marrow fat accumulation (+56%) in obese Thy-1−/− mice compared to obese WT mice was associated with upregulated tumor necrosis factor α (Tnfα, +46%) and colony stimulating factor 1 receptor (Csf1r) expression, strong promoters of osteoclast differentiation. Moreover, lack of Thy-1 was accompanied by a reduction of osteoprotegerin (Tnfrsf11b) expression (−36%), an inhibitor of osteoclast differentiation. Altered Tnfα, Csf1r, and Tnfrsf11b expression might be responsible for elevated osteoclast activity in obese Thy-1-deficient mice. In summary, our findings show that lack of Thy-1 promotes obesity under HFD conditions while concurrently decreasing bone mass and formation. Mechanistic studies revealed that under obese conditions lack of Thy-1 impairs both bone formation and bone resorption.
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Affiliation(s)
- Ann-Kristin Picke
- Division of Endocrinology, Diabetes, and Bone Diseases, Department of Medicine III, Center for Healthy Aging, Technische Universität Dresden, Dresden, Germany.,Institute of Comparative Molecular Endocrinology, Ulm University, Ulm, Germany
| | - Graeme M Campbell
- Institute of Biomechanics, TUHH Hamburg University of Technology, Hamburg, Germany
| | - Felix N Schmidt
- Department of Osteology and Biomechanics, University Medical Center, Hamburg, Germany
| | - Björn Busse
- Department of Osteology and Biomechanics, University Medical Center, Hamburg, Germany
| | - Martina Rauner
- Division of Endocrinology, Diabetes, and Bone Diseases, Department of Medicine III, Center for Healthy Aging, Technische Universität Dresden, Dresden, Germany
| | - Jan C Simon
- Department of Dermatology, Venerology, and Allergology, Medical Faculty, Leipzig University, Leipzig, Germany
| | - Ulf Anderegg
- Department of Dermatology, Venerology, and Allergology, Medical Faculty, Leipzig University, Leipzig, Germany
| | - Lorenz C Hofbauer
- Division of Endocrinology, Diabetes, and Bone Diseases, Department of Medicine III, Center for Healthy Aging, Technische Universität Dresden, Dresden, Germany
| | - Anja Saalbach
- Department of Dermatology, Venerology, and Allergology, Medical Faculty, Leipzig University, Leipzig, Germany
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Abstract
Aluminum (Al) exposure has adverse effects on osteoblasts, and the effect might be through autophagy-associated apoptosis. In this study, we showed that aluminum trichloride (AlCl3) could induce autophagy in MC3T3-E1 cells, as demonstrated by monodansylcadaverine (MDC) staining and the expressions of the ATG3, ATG5, and ATG9 genes. We found AlCl3 inhibited MC3T3-E1 cell survival rate and caused apoptosis, as evidenced by CCK-8 assay, Annexin V/PI double staining, and increased expressions of Bcl-2, Bax, and Caspase-3 genes. In addition, increased autophagy induced by rapamycin further attenuated the MC3T3-E1 cell apoptosis rate after AlCl3 exposure. These results support the hypothesis that autophagy plays a protective role in impeding apoptosis caused by AlCl3. Activating autophagy may be a strategy for treatment of Al-induced bone disease.
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Affiliation(s)
- Xu Yang
- Heilongjiang Key Laboratory for Laboratory Animals and Comparative Medicine, College of Veterinary Medicine, Northeast Agricultural University, NO. 600 Changjiang Road, Harbin, 150030, China
| | - Jian Zhang
- Heilongjiang Key Laboratory for Laboratory Animals and Comparative Medicine, College of Veterinary Medicine, Northeast Agricultural University, NO. 600 Changjiang Road, Harbin, 150030, China
| | - Qiang Ji
- Heilongjiang Key Laboratory for Laboratory Animals and Comparative Medicine, College of Veterinary Medicine, Northeast Agricultural University, NO. 600 Changjiang Road, Harbin, 150030, China
| | - Fan Wang
- Heilongjiang Veterinary Drugs and Feed Monitor, Harbin, 150030, China
| | - Miao Song
- Heilongjiang Key Laboratory for Laboratory Animals and Comparative Medicine, College of Veterinary Medicine, Northeast Agricultural University, NO. 600 Changjiang Road, Harbin, 150030, China
| | - Yanfei Li
- Heilongjiang Key Laboratory for Laboratory Animals and Comparative Medicine, College of Veterinary Medicine, Northeast Agricultural University, NO. 600 Changjiang Road, Harbin, 150030, China.
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38
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Minato Y, Yamaguchi M, Shimizu M, Kikuta J, Hikida T, Hikida M, Suemitsu M, Kuyama K, Kasai K. Effect of caspases and RANKL induced by heavy force in orthodontic root resorption. Korean J Orthod 2018; 48:253-261. [PMID: 30003059 PMCID: PMC6041455 DOI: 10.4041/kjod.2018.48.4.253] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2017] [Revised: 11/10/2017] [Accepted: 12/08/2017] [Indexed: 11/21/2022] Open
Abstract
Objective Orthodontic root resorption (ORR) due to orthodontic tooth movement is a difficult treatment-related adverse event. Caspases are important effector molecules for apoptosis. At present, little is known about the mechanisms underlying ORR and apoptosis in the cementum. The aim of the present in vivo study was to investigate the expression of tartrate-resistant acid phosphatase (TRAP), caspase 3, caspase 8, and receptor activator of nuclear factor kappa-B ligand (RANKL) in the cementum in response to a heavy or an optimum orthodontic force. Methods The maxillary molars of male Wistar rats were subjected to an orthodontic force of 10 g or 50 g using a closed coil spring. The rats were sacrificed each experimental period on days 1, 3, 5, and 7 after orthodontic force application. And the rats were subjected to histopathological and immunohistochemical analyses. Results On day 7 for the 50-g group, hematoxylin and eosin staining revealed numerous root resorption lacunae with odontoclasts on the root, while immunohistochemistry showed increased TRAP- and RANKL-positive cells. Caspase 3- and caspase 8-positive cells were increased on the cementum surfaces in the 50-g group on days 3 and 5. Moreover, the number of caspase 3- and caspase 8-positive cells and RANKL-positive cells was significantly higher in the 50-g group than in the 10-g group. Conclusions In our rat model, ORR occurred after apoptosis was induced in the cementum by a heavy orthodontic force. These findings suggest that apoptosis of cementoblasts is involved in ORR.
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Affiliation(s)
- Yukari Minato
- Department of Orthodontics, Nihon University School of Dentistry at Matsudo, Chiba, Japan
| | - Masaru Yamaguchi
- Department of Orthodontics, Nihon University School of Dentistry at Matsudo, Chiba, Japan
| | - Mami Shimizu
- Department of Orthodontics, Nihon University School of Dentistry at Matsudo, Chiba, Japan
| | - Jun Kikuta
- Department of Orthodontics, Nihon University School of Dentistry at Matsudo, Chiba, Japan
| | - Takuji Hikida
- Department of Orthodontics, Nihon University School of Dentistry at Matsudo, Chiba, Japan
| | - Momoko Hikida
- Department of Orthodontics, Nihon University School of Dentistry at Matsudo, Chiba, Japan
| | - Masaaki Suemitsu
- Department of Oral Pathology, Nihon University School of Dentistry at Matsudo, Chiba, Japan
| | - Kayo Kuyama
- Department of Oral Pathology, Nihon University School of Dentistry at Matsudo, Chiba, Japan
| | - Kazutaka Kasai
- Department of Orthodontics, Nihon University School of Dentistry at Matsudo, Chiba, Japan
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Giacomelli C, Natali L, Nisi M, De Leo M, Daniele S, Costa B, Graziani F, Gabriele M, Braca A, Trincavelli ML, Martini C. Negative effects of a high tumour necrosis factor-α concentration on human gingival mesenchymal stem cell trophism: the use of natural compounds as modulatory agents. Stem Cell Res Ther 2018; 9:135. [PMID: 29751776 PMCID: PMC5948671 DOI: 10.1186/s13287-018-0880-7] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2018] [Revised: 04/08/2018] [Accepted: 04/19/2018] [Indexed: 12/31/2022] Open
Abstract
Background Adult mesenchymal stem cells (MSCs) play a crucial role in the maintenance of tissue homeostasis and in regenerative processes. Among the different MSC types, the gingiva-derived mesenchymal stem cells (GMSCs) have arisen as a promising tool to promote the repair of damaged tissues secreting trophic mediators that affect different types of cells involved in regenerative processes. Tumour necrosis factor (TNF)-α is one of the key mediators of inflammation that could affect tissue regenerative processes and modify the MSC properties in in-vitro applications. To date, no data have been reported on the effects of TNF-α on GMSC trophic activities and how its modulation with anti-inflammatory agents from natural sources could modulate the GMSC properties. Methods GMSCs were isolated and characterized from healthy subjects. The effects of TNF-α were evaluated on GMSCs and on the well-being of endothelial cells. The secretion of cytokines was measured and related to the modification of GMSC-endothelial cell communication using a conditioned-medium method. The ability to modify the inflammatory response was evaluated in the presence of Ribes nigrum bud extract (RBE). Results TNF-α differently affected GMSC proliferation and the expression of inflammatory-related proteins (interleukin (IL)-6, IL-10, transforming growth factor (TGF)-β, and cyclooxygenase (COX)-2) dependent on its concentration. A high TNF-α concentration decreased the GMSC viability and impaired the positive cross-talk between GMSCs and endothelial cells, probably by enhancing the amount of pro-inflammatory cytokines in the GMSC secretome. RBE restored the beneficial effects of GMSCs on endothelial viability and motility under inflammatory conditions. Conclusions A high TNF-α concentration decreased the well-being of GMSCs, modifying their trophic activities and decreasing endothelial cell healing. These data highlight the importance of controlling TNF-α concentrations to maintain the trophic activity of GMSCs. Furthermore, the use of natural anti-inflammatory agents restored the regenerative properties of GMSCs on endothelial cells, opening the way to the use and development of natural extracts in wound healing, periodontal regeneration, and tissue-engineering applications that use MSCs. Electronic supplementary material The online version of this article (10.1186/s13287-018-0880-7) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Chiara Giacomelli
- Department of Pharmacy, University of Pisa, Via Bonanno 6, 56126, Pisa, Italy
| | - Letizia Natali
- Department of Pharmacy, University of Pisa, Via Bonanno 6, 56126, Pisa, Italy
| | - Marco Nisi
- Department of Surgical, Medical, Molecular and Critical Area Pathology, University of Pisa, Via Savi 10, 56126, Pisa, Italy
| | - Marinella De Leo
- Department of Pharmacy, University of Pisa, Via Bonanno 6, 56126, Pisa, Italy.,Centro Interdipartimentale di Ricerca "Nutraceutica e Alimentazione per la Salute", University of Pisa, Via del Borghetto 80, 56124, Pisa, Italy
| | - Simona Daniele
- Department of Pharmacy, University of Pisa, Via Bonanno 6, 56126, Pisa, Italy
| | - Barbara Costa
- Department of Pharmacy, University of Pisa, Via Bonanno 6, 56126, Pisa, Italy
| | - Filippo Graziani
- Department of Surgical, Medical, Molecular and Critical Area Pathology, University of Pisa, Via Savi 10, 56126, Pisa, Italy.,Centro Interdipartimentale di Ricerca "Nutraceutica e Alimentazione per la Salute", University of Pisa, Via del Borghetto 80, 56124, Pisa, Italy
| | - Mario Gabriele
- Department of Surgical, Medical, Molecular and Critical Area Pathology, University of Pisa, Via Savi 10, 56126, Pisa, Italy
| | - Alessandra Braca
- Department of Pharmacy, University of Pisa, Via Bonanno 6, 56126, Pisa, Italy.,Centro Interdipartimentale di Ricerca "Nutraceutica e Alimentazione per la Salute", University of Pisa, Via del Borghetto 80, 56124, Pisa, Italy
| | - M Letizia Trincavelli
- Department of Pharmacy, University of Pisa, Via Bonanno 6, 56126, Pisa, Italy. .,Centro Interdipartimentale di Ricerca "Nutraceutica e Alimentazione per la Salute", University of Pisa, Via del Borghetto 80, 56124, Pisa, Italy.
| | - Claudia Martini
- Department of Pharmacy, University of Pisa, Via Bonanno 6, 56126, Pisa, Italy.,Centro Interdipartimentale di Ricerca "Nutraceutica e Alimentazione per la Salute", University of Pisa, Via del Borghetto 80, 56124, Pisa, Italy
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Paine A, Ritchlin C. Altered Bone Remodeling in Psoriatic Disease: New Insights and Future Directions. Calcif Tissue Int 2018; 102:559-574. [PMID: 29330560 PMCID: PMC5906143 DOI: 10.1007/s00223-017-0380-2] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/10/2017] [Accepted: 12/27/2017] [Indexed: 12/15/2022]
Abstract
Psoriatic arthritis (PsA) is an inflammatory rheumatic disorder that occurs in patients with psoriasis and predominantly affects musculoskeletal structures, skin, and nails. The etiology of PsA is not well understood but evidence supports an interplay of genetic, immunologic, and environmental factors which promote pathological bone remodeling and joint damage in PsA. Localized and systemic bone loss due to increased activity of osteoclasts is well established in PsA based on animal models and translational studies. In contrast, the mechanisms responsible for pathological bone remodeling in PsA remain enigmatic although new candidate molecules and pathways have been identified. Recent reports have revealed novel findings related to bone erosion and pathologic bone formation in PsA. Many associated risk factors and contributing molecular mechanisms have also been identified. In this review, we discuss new developments in the field, point out unresolved questions regarding the pathogenetic origins of the wide array of bone phenotypes in PsA, and discuss new directions for investigation.
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Affiliation(s)
- Ananta Paine
- Allergy, Immunology & Rheumatology Division, University of Rochester Medical Center, Rochester, NY, 14623, USA.
| | - Christopher Ritchlin
- Allergy, Immunology & Rheumatology Division, University of Rochester Medical Center, Rochester, NY, 14623, USA
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