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Wei P, Wang N, Zhang Q, Wang W, Sun H, Liu Z, Yan T, Wang Q, Qiu L. Nano-ZnO-modified hydroxyapatite whiskers with enhanced osteoinductivity for bone defect repair. Regen Biomater 2024; 11:rbae051. [PMID: 38854679 PMCID: PMC11162197 DOI: 10.1093/rb/rbae051] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2024] [Revised: 04/01/2024] [Accepted: 04/15/2024] [Indexed: 06/11/2024] Open
Abstract
Hydroxyapatite (HA) whisker (HAw) represents a distinct form of HA characterized by its high aspect ratio, offering significant potential for enhancing the mechanical properties of bone tissue engineering scaffolds. However, the limited osteoinductivity of HAw hampers its widespread application. In this investigation, we observed HAw-punctured osteoblast membranes and infiltrated the cell body, resulting in mechanical damage to cells that adversely impacted osteoblast proliferation and differentiation. To address this challenge, we developed nano-zinc oxide particle-modified HAw (nano-ZnO/HAw). Acting as a reinforcing and toughening agent, nano-ZnO/HAw augmented the compressive strength and ductility of the matrix materials. At the same time, the surface modification with nano-ZnO particles improved osteoblast differentiation by reducing the mechanical damage from HAw to cells and releasing zinc ion, the two aspects collectively promoted the osteoinductivity of HAw. Encouragingly, the osteoinductive potential of 5% nano-ZnO/HAw and 10% nano-ZnO/HAw was validated in relevant rat models, demonstrating the efficacy of this approach in promoting new bone formation in vivo. Our findings underscore the role of nano-ZnO particle surface modification in enhancing the osteoinductivity of HAw from a physical standpoint, offering valuable insights into the development of bone substitutes with favorable osteoinductive properties while simultaneously bolstering matrix material strength and toughness.
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Affiliation(s)
- Penggong Wei
- School and Hospital of Stomatology, China Medical University, Shenyang 110002, China
- Liaoning Provincial Key Laboratory of Oral Diseases, Shenyang 110002, China
| | - Ning Wang
- Department of Plastic Surgery, The First Hospital of China Medical University, China Medical University, Shenyang 110001, China
| | - Qiyue Zhang
- School and Hospital of Stomatology, China Medical University, Shenyang 110002, China
- Liaoning Provincial Key Laboratory of Oral Diseases, Shenyang 110002, China
| | - Wanfeng Wang
- School and Hospital of Stomatology, China Medical University, Shenyang 110002, China
- Liaoning Provincial Key Laboratory of Oral Diseases, Shenyang 110002, China
| | - Hui Sun
- School and Hospital of Stomatology, China Medical University, Shenyang 110002, China
- Liaoning Provincial Key Laboratory of Oral Diseases, Shenyang 110002, China
| | - Zengqian Liu
- Shi-Changxu Innovation Center for Advanced Materials, Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016, China
| | - Tingting Yan
- Faculty of Materials Science and Engineering, Kunming University of Science and Technology, Kunming 650093, China
| | - Qiang Wang
- School and Hospital of Stomatology, China Medical University, Shenyang 110002, China
- Liaoning Provincial Key Laboratory of Oral Diseases, Shenyang 110002, China
| | - Lihong Qiu
- School and Hospital of Stomatology, China Medical University, Shenyang 110002, China
- Liaoning Provincial Key Laboratory of Oral Diseases, Shenyang 110002, China
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Schmidt KE, Höving AL, Nowak K, an Mey N, Kiani Zahrani S, Nemeita B, Riedel L, Majewski A, Kaltschmidt B, Knabbe C, Kaltschmidt C. Serum Induces the Subunit-Specific Activation of NF-κB in Proliferating Human Cardiac Stem Cells. Int J Mol Sci 2024; 25:3593. [PMID: 38612406 PMCID: PMC11012129 DOI: 10.3390/ijms25073593] [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: 02/15/2024] [Revised: 03/15/2024] [Accepted: 03/19/2024] [Indexed: 04/14/2024] Open
Abstract
Cardiovascular diseases (CVDs) are often linked to ageing and are the major cause of death worldwide. The declined proliferation of adult stem cells in the heart often impedes its regenerative potential. Thus, an investigation of the proliferative potential of adult human cardiac stem cells (hCSCs) might be of great interest for improving cell-based treatments of cardiovascular diseases. The application of human blood serum was already shown to enhance hCSC proliferation and reduce senescence. Here, the underlying signalling pathways of serum-mediated hCSC proliferation were studied. We are the first to demonstrate the involvement of the transcription factor NF-κB in the serum-mediated proliferative response of hCSCs by utilizing the NF-κB inhibitor pyrrolidine dithiocarbamate (PDTC). RNA-Sequencing (RNA-Seq) revealed ATF6B, COX5B, and TNFRSF14 as potential targets of NF-κB that are involved in serum-induced hCSC proliferation.
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Affiliation(s)
- Kazuko E. Schmidt
- Department of Cell Biology, Faculty of Biology, University of Bielefeld, 33615 Bielefeld, Germany (N.a.M.); (S.K.Z.); (B.N.)
- Institute for Laboratory and Transfusion Medicine, Heart and Diabetes Centre NRW, Ruhr-University Bochum, 32545 Bad Oeynhausen, Germany;
- Medical Faculty Ostwestfalen-Lippe, University of Bielefeld, 33615 Bielefeld, Germany
| | - Anna L. Höving
- Department of Cell Biology, Faculty of Biology, University of Bielefeld, 33615 Bielefeld, Germany (N.a.M.); (S.K.Z.); (B.N.)
- Institute for Laboratory and Transfusion Medicine, Heart and Diabetes Centre NRW, Ruhr-University Bochum, 32545 Bad Oeynhausen, Germany;
- Medical Faculty Ostwestfalen-Lippe, University of Bielefeld, 33615 Bielefeld, Germany
| | - Katja Nowak
- Department of Cell Biology, Faculty of Biology, University of Bielefeld, 33615 Bielefeld, Germany (N.a.M.); (S.K.Z.); (B.N.)
- Institute for Laboratory and Transfusion Medicine, Heart and Diabetes Centre NRW, Ruhr-University Bochum, 32545 Bad Oeynhausen, Germany;
- Medical Faculty Ostwestfalen-Lippe, University of Bielefeld, 33615 Bielefeld, Germany
| | - Nike an Mey
- Department of Cell Biology, Faculty of Biology, University of Bielefeld, 33615 Bielefeld, Germany (N.a.M.); (S.K.Z.); (B.N.)
| | - Sina Kiani Zahrani
- Department of Cell Biology, Faculty of Biology, University of Bielefeld, 33615 Bielefeld, Germany (N.a.M.); (S.K.Z.); (B.N.)
| | - Britta Nemeita
- Department of Cell Biology, Faculty of Biology, University of Bielefeld, 33615 Bielefeld, Germany (N.a.M.); (S.K.Z.); (B.N.)
| | - Lena Riedel
- Department of Cell Biology, Faculty of Biology, University of Bielefeld, 33615 Bielefeld, Germany (N.a.M.); (S.K.Z.); (B.N.)
| | - Agnes Majewski
- Department of Cell Biology, Faculty of Biology, University of Bielefeld, 33615 Bielefeld, Germany (N.a.M.); (S.K.Z.); (B.N.)
| | - Barbara Kaltschmidt
- AG Molecular Neurobiology, Faculty of Biology, University of Bielefeld, 33615 Bielefeld, Germany;
| | - Cornelius Knabbe
- Institute for Laboratory and Transfusion Medicine, Heart and Diabetes Centre NRW, Ruhr-University Bochum, 32545 Bad Oeynhausen, Germany;
- Medical Faculty Ostwestfalen-Lippe, University of Bielefeld, 33615 Bielefeld, Germany
| | - Christian Kaltschmidt
- Department of Cell Biology, Faculty of Biology, University of Bielefeld, 33615 Bielefeld, Germany (N.a.M.); (S.K.Z.); (B.N.)
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Yang M, Yao X, Xia F, Xiang S, Tang W, Zhou B. Hugan Qingzhi tablets attenuates endoplasmic reticulum stress in nonalcoholic fatty liver disease rats by regulating PERK and ATF6 pathways. BMC Complement Med Ther 2024; 24:36. [PMID: 38216941 PMCID: PMC10785447 DOI: 10.1186/s12906-024-04336-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2023] [Accepted: 01/03/2024] [Indexed: 01/14/2024] Open
Abstract
BACKGROUND Endoplasmic reticulum (ER) stress, promoting lipid metabolism disorders and steatohepatitis, contributes significantly to the pathogenesis of nonalcoholic fatty liver disease (NAFLD). Hugan Qingzhi tablets (HQT) has a definite effect in the clinical treatment of NAFLD patients, but its mechanism is still unclear. This study aims to investigate the effects of HQT on ER stress in the liver tissues of NAFLD rats and explore the underlying mechanism. METHODS The NAFLD rat model was managed with high-fat diet (HFD) for 12weeks. HQT was administrated in a daily basis to the HFD groups. Biochemical markers, pro-inflammatory cytokines, liver histology were assayed to evaluate HQT effects in HFD-induced NAFLD rats. Furthermore, the expression of ER stress-related signal molecules including glucose regulating protein 78 (GRP78), protein kinase RNA-like endoplasmic reticulum kinase (PERK), p-PERK, eukaryotic translation initiation factor 2α (EIF2α), p-EIF2α, activating transcription factor 4 (ATF4), acetyl-coenzyme A-carboxylase (ACC), activating transcription factor (ATF6), and nuclear factor-kappa B-p65 (NF-κB-p65) were detected by western blot and/or qRT-PCR. RESULTS The histopathological characteristics and biochemical data indicated that HQT exhibited protective effects on HFD-induced NAFLD rats. Furthermore, it caused significant reduction in the expression of ERS markers, such as GRP78, PERK, p-PERK, and ATF6, and subsequently downregulated the expression of EIF2α, p-EIF2α ATF4, ACC, and NF-κB-p65. CONCLUSIONS The results suggested that HQT has protective effect against hepatic steatosis and inflammation in NAFLD rats by attenuating ER stress, and the potential mechanism is through inhibition of PERK and ATF6 pathways.
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Affiliation(s)
- Miaoting Yang
- Department of Pharmacy, People's Hospital of Longhua, Shenzhen, 518109, Guangdong, China
| | - Xiaorui Yao
- Department of Pharmacy, Shantou Central Hospital, Shantou, 515041, Guangdong, China
| | - Fan Xia
- Department of Pharmacy, the Seventh Affiliated Hospital, Sun Yat-sen University, Shenzhen, 518107, PR China
| | - Shijian Xiang
- Department of Pharmacy, the Seventh Affiliated Hospital, Sun Yat-sen University, Shenzhen, 518107, PR China
| | - Waijiao Tang
- Zhujiang Hospital, Southern Medical University, Guangzhou, 510282, Guangdong, China
| | - Benjie Zhou
- Department of Pharmacy, the Seventh Affiliated Hospital, Sun Yat-sen University, Shenzhen, 518107, PR China.
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