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Cheng Y, Chen K, He D, He Y, Lei Y, Sun Y. Diversity of Arbuscular Mycorrhizal Fungi of the Rhizosphere of Lycium barbarum L. from Four Main Producing Areas in Northwest China and Their Effect on Plant Growth. J Fungi (Basel) 2024; 10:286. [PMID: 38667957 PMCID: PMC11050802 DOI: 10.3390/jof10040286] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2024] [Revised: 04/04/2024] [Accepted: 04/09/2024] [Indexed: 04/28/2024] Open
Abstract
Arbuscular mycorrhizal fungi (AMF) can help plants absorb more mineral nutrients after they colonize plant roots, and the mycelia harmonize the soil structure and physical and chemical properties by secreting compounds. AMF species co-evolve with their habitat's geographic conditions and hosts; this gradually causes differences in the AMF species. By using Melzer's reagent to analyze the morphology and using Illumina Miseq sequencing technology to perform the molecular identification of AMF communities among the four typical L. barbarum planting areas (Zhongning, Guyuan, Jinghe, and Dulan) investigated, the variety of L. barbarum roots and rhizosphere AMF communities was greater in the Zhongning area, and every region additionally had endemic species. The successfully amplified AMF was re-applied to the L. barbarum seedlings. We found that the total dry weight and accumulation of potassium increased significantly (p < 0.05), and the root volume and number of root branches were significantly higher in the plants that were inoculated with Paraglomus VTX00375 in the pot experiment, indicating that AMF improves root development and promotes plant growth. We have investigated AMF germplasm species in four regions, and we are committed to the development of native AMF resources. The multiplication and application of AMF will be conducive to realizing the potential role of biology in the maintenance of agroecology.
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Affiliation(s)
- Yuyao Cheng
- Xinjiang Production and Construction Corps Key Laboratory of Oasis Town and Mountain-Basin System Ecology, College of Life Sciences, Shihezi University, Shihezi 832000, China; (Y.C.); (K.C.); (D.H.)
| | - Kaili Chen
- Xinjiang Production and Construction Corps Key Laboratory of Oasis Town and Mountain-Basin System Ecology, College of Life Sciences, Shihezi University, Shihezi 832000, China; (Y.C.); (K.C.); (D.H.)
| | - Dalun He
- Xinjiang Production and Construction Corps Key Laboratory of Oasis Town and Mountain-Basin System Ecology, College of Life Sciences, Shihezi University, Shihezi 832000, China; (Y.C.); (K.C.); (D.H.)
| | - Yaling He
- College of Medicine, Shihezi University, Shihezi 832000, China;
| | - Yonghui Lei
- Department of Plant Protection, College of Agriculture, Shihezi University, Shihezi 832000, China
| | - Yanfei Sun
- Xinjiang Production and Construction Corps Key Laboratory of Oasis Town and Mountain-Basin System Ecology, College of Life Sciences, Shihezi University, Shihezi 832000, China; (Y.C.); (K.C.); (D.H.)
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Wang M, Li H, Qian Y, Zhao S, Wang H, Wang Y, Yu T. The lncRNA lnc_AABR07044470.1 promotes the mitochondrial-damaged inflammatory response to neuronal injury via miR-214-3p/PERM1 axis in acute ischemic stroke. Mol Biol Rep 2024; 51:412. [PMID: 38466466 DOI: 10.1007/s11033-024-09301-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2023] [Accepted: 01/30/2024] [Indexed: 03/13/2024]
Abstract
PURPOSE We investigated the role of lnc_AABR07044470.1 on the occurrence and development of acute ischemic stroke (AIS) and neuronal injury by targeting the miR-214-3p/PERM1 axis to find a novel clinical drug target and prediction and treatment of AIS. METHODS The mouse AIS animal model was used in vivo experiments and hypoxia/reoxygenation cell model in vitro was established. Firstly, infarction volume and pathological changes of mouse hippocampal neurons were detected using HE staining. Secondly, rat primary neuron apoptosis was detected by flow cytometry assay. The numbers of neuron, microglia and astrocytes were detected using immunofluorescence (IF). Furthermore, binding detection was performed by bioinformatics database and double luciferase reporter assay. Lnc_AABR07044470.1 localization was performed using fluorescence in situ hybridization (FISH).Lnc_AABR07044470.1, miR-214-3pand PERM1mRNA expression was performed using RT-qPCR. NLRP3, ASC, Caspase-1 and PERM1 protein expression was performed using Western blotting. IL-1β was detected by ELISA assay. RESULTS Mouse four-vessel occlusion could easily establish the animal model, and AIS animal model had an obvious time-dependence. HE staining showed that, compared with the sham group, infarction volume and pathological changes of mouse hippocampal neurons were deteriorated in the model group. Furthermore, compared with the sham group, neurons were significantly reduced, while microglia and astrocytes were significantly activated. Moreover, the bioinformatics prediction and detection of double luciferase reporter confirmed the binding site of lnc_AABR07044470.1 to miR-214-3p and miR-214-3p to Perm1. lnc_AABR07044470.1 and PERM1 expression was significantly down-regulated and miR-214-3pexpression was significantly up-regulated in AIS animal model in vivo. At the same time, the expression of inflammasome NLRP3, ASC, Caspase-1 and pro-inflammatory factor IL-1β was significantly up-regulated in vivo and in vitro. The over-expression of lnc_AABR07044470.1 and miR-214-3p inhibitor could inhibit the neuron apoptosis and the expression of inflammasome NLRP3, ASC, Caspase-1 and pro-inflammatory factor IL-1β and up-regulate the expression of PERM1 in vitro. Finally, over-expression of lnc_AABR07044470.1 and miR-214-3p inhibitor transfected cell model was significant in relieving the AIS and neuronal injury. CONCLUSION Lnc_AABR07044470.1 promotes inflammatory response to neuronal injury via miR-214-3p/PERM1 axis in AIS.
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Affiliation(s)
- Meng Wang
- First Teaching Hospital of Tianjin University of Traditional Chinese Medicine, Tianjin, 300380, People's Republic of China
- National Clinical Research Center for Chinese Medicine Acupuncture and Moxibustion, Tianjin, 300380, People's Republic of China
| | - Hong Li
- First Teaching Hospital of Tianjin University of Traditional Chinese Medicine, Tianjin, 300380, People's Republic of China
- National Clinical Research Center for Chinese Medicine Acupuncture and Moxibustion, Tianjin, 300380, People's Republic of China
| | - Yulin Qian
- First Teaching Hospital of Tianjin University of Traditional Chinese Medicine, Tianjin, 300380, People's Republic of China
- National Clinical Research Center for Chinese Medicine Acupuncture and Moxibustion, Tianjin, 300380, People's Republic of China
| | - Shanshan Zhao
- First Teaching Hospital of Tianjin University of Traditional Chinese Medicine, Tianjin, 300380, People's Republic of China
- National Clinical Research Center for Chinese Medicine Acupuncture and Moxibustion, Tianjin, 300380, People's Republic of China
| | - Hao Wang
- First Teaching Hospital of Tianjin University of Traditional Chinese Medicine, Tianjin, 300380, People's Republic of China
- National Clinical Research Center for Chinese Medicine Acupuncture and Moxibustion, Tianjin, 300380, People's Republic of China
| | - Yu Wang
- First Teaching Hospital of Tianjin University of Traditional Chinese Medicine, Tianjin, 300380, People's Republic of China
- National Clinical Research Center for Chinese Medicine Acupuncture and Moxibustion, Tianjin, 300380, People's Republic of China
| | - Tao Yu
- First Teaching Hospital of Tianjin University of Traditional Chinese Medicine, Tianjin, 300380, People's Republic of China.
- National Clinical Research Center for Chinese Medicine Acupuncture and Moxibustion, Tianjin, 300380, People's Republic of China.
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Li J, Fang Z, Dal E, Zhang H, Yu K, Ma M, Wang M, Sun R, Lu M, Wang H, Li Y. Transmembrane protein 176B regulates amino acid metabolism through the PI3K-Akt-mTOR signaling pathway and promotes gastric cancer progression. Cancer Cell Int 2024; 24:95. [PMID: 38438907 PMCID: PMC10913232 DOI: 10.1186/s12935-024-03279-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2023] [Accepted: 02/19/2024] [Indexed: 03/06/2024] Open
Abstract
BACKGROUND The present study aimed to investigate the expression level, biological function, and underlying mechanism of transmembrane protein 176B (TMEM176B) in gastric cancer (GC). METHODS TMEM176B expression was detected by quantitative real-time polymerase chain reaction (qRT-PCR) and western blotting (WB). The function of TMEM176B was determined by various in vitro assays including colony formation, 5-ethynyl-2'-deoxyuridine (EdU), Transwell, and flow cytometry. Bioinformatics techniques were then used to elucidate the signaling pathways associated with TMEM176B activity. Tumor formation experiments were conducted on nude mice for in vivo validation of the preceding findings. TMEM176B expression was cross-referenced to clinicopathological parameters and survival outcomes. RESULTS It was observed that TMEM176B was overexpressed in GC cells and tissues. Targeted TMEM176B abrogation inhibited colony formation, proliferation, migration, and invasion but promoted apoptosis in GC cell lines while TMEM176B overexpression had the opposite effects. Subsequent experimental validation disclosed an association between TMEM176B and the phosphatidylinositol 3-carboxykinase (PI3K)-protein kinase B (Akt)-mammalian target of rapamycin (mTOR) signaling axis. Moreover, TMEM176B affects GC cancer progression by regulating asparagine synthetase (ASNS). The in vivo assays confirmed that TMEM176B is oncogenic and the clinical data revealed a connection between TMEM176B expression and the clinicopathological determinants of GC. CONCLUSION The foregoing results suggest that TMEM176B significantly promotes the development of gastric cancer and is an independent prognostic factor of it.
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Affiliation(s)
- Jing Li
- Department of General Surgery, The First Affiliated Hospital of Anhui Medical University, Hefei, 230022, China
- Department of Gastrointestinal Surgery, The First Affiliated Hospital of Anhui Medical University, Hefei, 230022, China
| | - ZiQing Fang
- Department of General Surgery, The First Affiliated Hospital of Anhui Medical University, Hefei, 230022, China
- Department of Gastrointestinal Surgery, The First Affiliated Hospital of Anhui Medical University, Hefei, 230022, China
| | - Emre Dal
- University of Utah, Salt Lake City, UT, 84102, USA
| | - Hao Zhang
- Department of General Surgery, The First Affiliated Hospital of Anhui Medical University, Hefei, 230022, China
- Department of Gastrointestinal Surgery, The First Affiliated Hospital of Anhui Medical University, Hefei, 230022, China
| | - KeXun Yu
- Department of General Surgery, The First Affiliated Hospital of Anhui Medical University, Hefei, 230022, China
- Department of Gastrointestinal Surgery, The First Affiliated Hospital of Anhui Medical University, Hefei, 230022, China
| | - MengDi Ma
- Department of General Surgery, The First Affiliated Hospital of Anhui Medical University, Hefei, 230022, China
- Department of Gastrointestinal Surgery, The First Affiliated Hospital of Anhui Medical University, Hefei, 230022, China
| | - MingLiang Wang
- Department of General Surgery, The First Affiliated Hospital of Anhui Medical University, Hefei, 230022, China
- Department of Gastrointestinal Surgery, The First Affiliated Hospital of Anhui Medical University, Hefei, 230022, China
| | - Ruochuan Sun
- Department of General Surgery, The First Affiliated Hospital of Anhui Medical University, Hefei, 230022, China
- Department of Gastrointestinal Surgery, The First Affiliated Hospital of Anhui Medical University, Hefei, 230022, China
| | - MingDian Lu
- Department of General Surgery, The First Affiliated Hospital of Anhui Medical University, Hefei, 230022, China
- Department of Gastrointestinal Surgery, The First Affiliated Hospital of Anhui Medical University, Hefei, 230022, China
| | - HuiZhen Wang
- Department of General Surgery, The First Affiliated Hospital of Anhui Medical University, Hefei, 230022, China.
- Department of Gastrointestinal Surgery, The First Affiliated Hospital of Anhui Medical University, Hefei, 230022, China.
| | - YongXiang Li
- Department of General Surgery, The First Affiliated Hospital of Anhui Medical University, Hefei, 230022, China.
- Department of Gastrointestinal Surgery, The First Affiliated Hospital of Anhui Medical University, Hefei, 230022, China.
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Shen J, Liang J, Rejiepu M, Ma Z, Zhao J, Li J, Zhang L, Yuan P, Wang J, Tang B. Analysis of immunoinfiltration and EndoMT based on TGF-β signaling pathway-related genes in acute myocardial infarction. Sci Rep 2024; 14:5183. [PMID: 38431730 PMCID: PMC10908777 DOI: 10.1038/s41598-024-55613-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2023] [Accepted: 02/26/2024] [Indexed: 03/05/2024] Open
Abstract
Acute myocardial infarction (AMI), a critical manifestation of coronary heart disease, presents a complex and not entirely understood etiology. This study investigates the potential role of immune infiltration and endothelial-mesenchymal transition (EndoMT) in AMI pathogenesis. We conducted an analysis of the GSE24519 and MSigDB datasets to identify differentially expressed genes associated with the TGF-β signaling pathway (DE-TSRGs) and carried out a functional enrichment analysis. Additionally, we evaluated immune infiltration in AMI and its possible link to myocardial fibrosis. Key genes were identified using machine learning and LASSO logistic regression. The expression of MEOX1 in the ventricular muscles and endothelial cells of Sprague-Dawley rats was assessed through RT-qPCR, immunohistochemical and immunofluorescence assays, and the effect of MEOX1 overexpression on EndoMT was investigated. Our study identified five DE-TSRGs, among which MEOX1, SMURF1, and SPTBN1 exhibited the most significant associations with AMI. Notably, we detected substantial immune infiltration in AMI specimens, with a marked increase in neutrophils and macrophages. MEOX1 demonstrated consistent expression patterns in rat ventricular muscle tissue and endothelial cells, and its overexpression induced EndoMT. Our findings suggest that the TGF-β signaling pathway may contribute to AMI progression by activating the immune response. MEOX1, linked to the TGF-β signaling pathway, appears to facilitate myocardial fibrosis via EndoMT following AMI. These novel insights into the mechanisms of AMI pathogenesis could offer promising therapeutic targets for intervention.
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Affiliation(s)
- Jun Shen
- Cardiac Pacing and Electrophysiology Department, The First Affiliated Hospital of Xinjiang Medical University, Urumqi, China.
- Department of Cardiology, Renmin Hospital, Hubei University of Medicine, Shiyan, China.
| | - Junqing Liang
- Cardiac Pacing and Electrophysiology Department, The First Affiliated Hospital of Xinjiang Medical University, Urumqi, China
| | - Manzeremu Rejiepu
- Cardiac Pacing and Electrophysiology Department, The First Affiliated Hospital of Xinjiang Medical University, Urumqi, China
| | - Zhiqin Ma
- Department of Cardiology, Renmin Hospital, Hubei University of Medicine, Shiyan, China
| | - Jixian Zhao
- Department of Cardiology, Renmin Hospital, Hubei University of Medicine, Shiyan, China
| | - Jia Li
- Department of Cardiology, Renmin Hospital, Hubei University of Medicine, Shiyan, China
| | - Ling Zhang
- Cardiac Pacing and Electrophysiology Department, The First Affiliated Hospital of Xinjiang Medical University, Urumqi, China.
| | - Ping Yuan
- Department of Cardiology, Renmin Hospital, Hubei University of Medicine, Shiyan, China.
| | - Jianing Wang
- Department of Cardiology, Renmin Hospital, Hubei University of Medicine, Shiyan, China.
| | - Baopeng Tang
- Cardiac Pacing and Electrophysiology Department, The First Affiliated Hospital of Xinjiang Medical University, Urumqi, China.
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Chen Z, Li J, Bai Y, Liu Z, Wei Y, Guo D, Jia X, Shi B, Zhang X, Zhao Z, Hu J, Han X, Wang J, Liu X, Li S, Zhao F. Unlocking the Transcriptional Control of NCAPG in Bovine Myoblasts: CREB1 and MYOD1 as Key Players. Int J Mol Sci 2024; 25:2506. [PMID: 38473754 DOI: 10.3390/ijms25052506] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2024] [Revised: 02/14/2024] [Accepted: 02/16/2024] [Indexed: 03/14/2024] Open
Abstract
Muscle formation directly determines meat production and quality. The non-SMC condensin I complex subunit G (NCAPG) is strongly linked to the growth features of domestic animals because it is essential in controlling muscle growth and development. This study aims to elucidate the tissue expression level of the bovine NCAPG gene, and determine the key transcription factors for regulating the bovine NCAPG gene. In this study, we observed that the bovine NCAPG gene exhibited high expression levels in longissimus dorsi and spleen tissues. Subsequently, we cloned and characterized the promoter region of the bovine NCAPG gene, consisting of a 2039 bp sequence, through constructing the deletion fragment double-luciferase reporter vector and site-directed mutation-identifying core promoter region with its key transcription factor binding site. In addition, the key transcription factors of the core promoter sequence of the bovine NCAPG gene were analyzed and predicted using online software. Furthermore, by integrating overexpression experiments and the electrophoretic mobility shift assay (EMSA), we have shown that cAMP response element binding protein 1 (CREB1) and myogenic differentiation 1 (MYOD1) bind to the core promoter region (-598/+87), activating transcription activity in the bovine NCAPG gene. In conclusion, these findings shed important light on the regulatory network mechanism that underlies the expression of the NCAPG gene throughout the development of the muscles in beef cattle.
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Affiliation(s)
- Zongchang Chen
- Gansu Key Laboratory of Herbivorous Animal Biotechnology, College of Animal Science and Technology, Gansu Agricultural University, Lanzhou 730070, China
| | - Jingsheng Li
- Gansu Key Laboratory of Herbivorous Animal Biotechnology, College of Animal Science and Technology, Gansu Agricultural University, Lanzhou 730070, China
| | - Yanbin Bai
- Gansu Key Laboratory of Herbivorous Animal Biotechnology, College of Animal Science and Technology, Gansu Agricultural University, Lanzhou 730070, China
| | - Zhanxin Liu
- Gansu Key Laboratory of Herbivorous Animal Biotechnology, College of Animal Science and Technology, Gansu Agricultural University, Lanzhou 730070, China
| | - Yali Wei
- Gansu Key Laboratory of Herbivorous Animal Biotechnology, College of Animal Science and Technology, Gansu Agricultural University, Lanzhou 730070, China
| | - Dashan Guo
- Gansu Key Laboratory of Herbivorous Animal Biotechnology, College of Animal Science and Technology, Gansu Agricultural University, Lanzhou 730070, China
| | - Xue Jia
- Gansu Key Laboratory of Herbivorous Animal Biotechnology, College of Animal Science and Technology, Gansu Agricultural University, Lanzhou 730070, China
| | - Bingang Shi
- Gansu Key Laboratory of Herbivorous Animal Biotechnology, College of Animal Science and Technology, Gansu Agricultural University, Lanzhou 730070, China
| | - Xiaolan Zhang
- Gansu Key Laboratory of Herbivorous Animal Biotechnology, College of Animal Science and Technology, Gansu Agricultural University, Lanzhou 730070, China
| | - Zhidong Zhao
- Gansu Key Laboratory of Herbivorous Animal Biotechnology, College of Animal Science and Technology, Gansu Agricultural University, Lanzhou 730070, China
| | - Jiang Hu
- Gansu Key Laboratory of Herbivorous Animal Biotechnology, College of Animal Science and Technology, Gansu Agricultural University, Lanzhou 730070, China
| | - Xiangmin Han
- Gansu Key Laboratory of Herbivorous Animal Biotechnology, College of Animal Science and Technology, Gansu Agricultural University, Lanzhou 730070, China
| | - Jiqing Wang
- Gansu Key Laboratory of Herbivorous Animal Biotechnology, College of Animal Science and Technology, Gansu Agricultural University, Lanzhou 730070, China
| | - Xiu Liu
- Gansu Key Laboratory of Herbivorous Animal Biotechnology, College of Animal Science and Technology, Gansu Agricultural University, Lanzhou 730070, China
| | - Shaobin Li
- Gansu Key Laboratory of Herbivorous Animal Biotechnology, College of Animal Science and Technology, Gansu Agricultural University, Lanzhou 730070, China
| | - Fangfang Zhao
- Gansu Key Laboratory of Herbivorous Animal Biotechnology, College of Animal Science and Technology, Gansu Agricultural University, Lanzhou 730070, China
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Huang D, Zou L, Lu C, Zhao J, He D, Yang C. Simultaneous standard total joint prosthesis reconstruction with SSRO and Le Fort I osteotomy in the treatment of unilateral temporomandibular joint ankylosis with jaw deformity: a case cohort study. Clin Oral Investig 2024; 28:163. [PMID: 38383876 PMCID: PMC10881754 DOI: 10.1007/s00784-024-05543-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2023] [Accepted: 02/03/2024] [Indexed: 02/23/2024]
Abstract
OBJECTIVE Unilateral temporomandibular joint ankylosis with jaw deformity (UTMJAJD) may require simultaneous total joint prosthesis (TJP) reconstruction, sagittal split ramus (SSRO), and Le Fort I osteotomies. The purpose of this study was to evaluate outcomes in patients treated with these procedures. METHODS Patients diagnosed UTMJAJD between 2016 and 2018 were selected for the study. Mandible-first procedure was performed after ankylosis release with TJP on the ankylosed side and SSRO on the contralateral side. Le Fort I osteotomy with and without genioplasty was lastly performed. Maximal incisor opening (MIO), facial symmetry, and jaw and condyle stability were compared before, after operation, and during follow-ups. RESULTS Seven patients were included in the study. Their average chin deviation was 9.5 ± 4.2 mm, and maxillary cant was 5.1 ± 3.0°. After operation, jaw deformity significantly improved, with chin deviation corrected 7.6 ± 4.1 mm (p = 0.015) and advanced 5.9 ± 2.5 mm (p = 0.006). After an average follow-up of 26.6 ± 17.1 months, MIO significantly increased from 11.4 ± 9.3 to 35.7 ± 2.6 mm (p = 0.000). The occlusion was stable with no significant positional or rotational changes of the jaw (p > 0.05). There was no obvious condylar resorption during follow-ups. CONCLUSION Simultaneous TJP reconstruction, SSRO, and Le Fort I osteotomy are reliable and effective methods for the treatment of UTMJAJD.
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Affiliation(s)
- Dong Huang
- Department of Oral Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, College of Stomatology, Shanghai Jiao Tong University, Shanghai, 200011, China
- National Center for Stomatology, National Clinical Research Center for Oral Diseases, Shanghai Key Laboratory of Stomatology, Shanghai Research Institute of Stomatology, Shanghai, 200011, China
| | - Luxiang Zou
- Department of Oral Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, College of Stomatology, Shanghai Jiao Tong University, Shanghai, 200011, China
- National Center for Stomatology, National Clinical Research Center for Oral Diseases, Shanghai Key Laboratory of Stomatology, Shanghai Research Institute of Stomatology, Shanghai, 200011, China
| | - Chuan Lu
- Department of Oral Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, College of Stomatology, Shanghai Jiao Tong University, Shanghai, 200011, China
- National Center for Stomatology, National Clinical Research Center for Oral Diseases, Shanghai Key Laboratory of Stomatology, Shanghai Research Institute of Stomatology, Shanghai, 200011, China
| | - Jieyun Zhao
- Department of Oral Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, College of Stomatology, Shanghai Jiao Tong University, Shanghai, 200011, China
- National Center for Stomatology, National Clinical Research Center for Oral Diseases, Shanghai Key Laboratory of Stomatology, Shanghai Research Institute of Stomatology, Shanghai, 200011, China
| | - Dongmei He
- Department of Oral Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, College of Stomatology, Shanghai Jiao Tong University, Shanghai, 200011, China.
- National Center for Stomatology, National Clinical Research Center for Oral Diseases, Shanghai Key Laboratory of Stomatology, Shanghai Research Institute of Stomatology, Shanghai, 200011, China.
| | - Chi Yang
- Department of Oral Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, College of Stomatology, Shanghai Jiao Tong University, Shanghai, 200011, China.
- National Center for Stomatology, National Clinical Research Center for Oral Diseases, Shanghai Key Laboratory of Stomatology, Shanghai Research Institute of Stomatology, Shanghai, 200011, China.
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Zhou L, Yin X. Clinical applications of abnormal DNA methylation in chronic myeloid leukemia. Zhong Nan Da Xue Xue Bao Yi Xue Ban 2024; 49:122-127. [PMID: 38615173 PMCID: PMC11017016 DOI: 10.11817/j.issn.1672-7347.2024.230336] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Subscribe] [Scholar Register] [Received: 08/08/2023] [Indexed: 04/15/2024]
Abstract
DNA methylation, a crucial biochemical process within the human body, fundamentally alters gene expression without modifying the DNA sequence, resulting in stable changes. The changes in DNA methylation are closely related to numerous biological processes including cellular proliferation and differentiation, embryonic development, and the occurrence of immune diseases and tumor. Specifically, abnormal DNA methylation plays a crucial role in the formation, progression, and prognosis of chronic myeloid leukemia (CML). Moreover, DNA methylation offers substantial potential for diagnosing and treating CML. Accordingly, understanding the precise mechanism of DNA methylation, particularly abnormal changes in the methylation of specific genes in CML, can potentially promote the development of novel targeted therapeutic strategies. Such strategies could transform into clinical practice, effectively aiding diagnosis and treatment of CML patients.
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Affiliation(s)
- Lingyan Zhou
- Department of Pediatrics, First Affiliated Hospital, Hengyang Medical College, University of South China, Hengyang Hunan 421600, China.
| | - Xiaocheng Yin
- Department of Pediatrics, First Affiliated Hospital, Hengyang Medical College, University of South China, Hengyang Hunan 421600, China.
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Wang J, Li Y, Zeng W, Jiang W. Circumlimbal suture and laser burns: Comparison between two different chronic glaucoma models. Zhong Nan Da Xue Xue Bao Yi Xue Ban 2024; 49:84-94. [PMID: 38615170 PMCID: PMC11017032 DOI: 10.11817/j.issn.1672-7347.2024.230112] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Subscribe] [Scholar Register] [Received: 03/20/2023] [Indexed: 04/15/2024]
Abstract
OBJECTIVES Glaucoma is a multifactorial optic neuropathy with a high rate of irreversible visual loss, and its pathogenesis is complex and still unclear. Elevated intraocular pressure (IOP) is well recognized as the sole modifiable risk factor for the development of glaucoma in the majority of cases. This study aims to compare 2 different methods of inducing chronic ocular hypertension by circumlimbal suture or by laser burns in degree and lasting time of the IOP, different status of the retina and retinal ganglion cells (RGCs), and changes of the microstructure of neurons. METHODS The chronic ocular hypertension models were induced by 2 different ways. One kind of the models was built by unilateral circumlimbal suture (10/0) implantation (suture group), another kind of model was built by laser burns at trabecular meshwork and episcleral veins (laser group). The untreated contralateral eye served as the control group. Changes in IOP were observed and regularly monitored in the 2 groups of rats. HE staining was applied to observe the retinal and optic nerve pathology. Transmission electron microscope (TEM) was used to observe the mitochondrial morphology. RGCs were specifically labeled with Brn3b antibody and counted. The expression of caspase-3 was detected by Western blotting to clarify the apoptosis of RGCs. RESULTS Compared with the control group, IOP were significantly increased in the suture group and the laser group (both P<0.05). The suture group induced a 1.5-fold elevation of IOP, and sustained for 8 weeks. The laser group induced a 2-fold elevation of IOP for 12 weeks. Both methods could cause RGCs loss (both P<0.05), which were verified by pathology and immune staining of Brn3b. The expressions of caspase-3 were also increased (both P<0.05). The mitochondrial morphology became more fragment, which changed from long shape to round and small one under TEM in 2 models. For comparison, the pathology changes of retinal structure in suture group were not obviously than those in the laser group. CONCLUSIONS Circumlimbal suture can build an effective model of chronic elevated IOP and induce glaucomatous pathologic changes similar to those in the laser photocoagulation, but the pathologic changes are milder than those in laser photocoagulation. Compare with translimbal laser photocoagulation, equipment and skill demand for circumlimbal suture is less.
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Affiliation(s)
- Jun Wang
- Department of Ophthalmology, Second Xiangya Hospital, Central South University, Changsha 410011.
- Hunan Clinical Research Center of Ophthalmic Disease, Changsha 410011, China.
| | - Yue Li
- Department of Ophthalmology, Second Xiangya Hospital, Central South University, Changsha 410011
- Hunan Clinical Research Center of Ophthalmic Disease, Changsha 410011, China
| | - Wenjie Zeng
- Department of Ophthalmology, Second Xiangya Hospital, Central South University, Changsha 410011
- Hunan Clinical Research Center of Ophthalmic Disease, Changsha 410011, China
| | - Wenmin Jiang
- Department of Ophthalmology, Second Xiangya Hospital, Central South University, Changsha 410011.
- Hunan Clinical Research Center of Ophthalmic Disease, Changsha 410011, China.
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Chu H, Cui C, Su X, Zhang H, Ma J, Zhu H, Bai L, Li R. Research progress in mitochondrial quality control in schizophrenia. Zhong Nan Da Xue Xue Bao Yi Xue Ban 2024; 49:128-134. [PMID: 38615174 PMCID: PMC11017019 DOI: 10.11817/j.issn.1672-7347.2024.230398] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Subscribe] [Scholar Register] [Received: 09/18/2023] [Indexed: 04/15/2024]
Abstract
Mitochondria are the main site of energy metabolism within cells, generating a substantial amount of ATP to supply energy to the human body. Research has shown that alterations in mitochondrial structure and function exist in individuals with schizophrenia, suggesting their potential impact on the onset of psychiatric disorders and clinical treatment efficacy. Therefore, understanding the research progress on the genetic mechanisms, pathological processes, image manifestations of schizophrenia and mitochondrial quality control, and summarizing the relevant evidence of mitochondrial-related targets as potential therapeutic targets for schizophrenia, can provide references for further research.
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Affiliation(s)
- Haoran Chu
- School of Mental Health, Jining Medical University, Jining Shandong 272067.
| | - Cuicui Cui
- Sixth Department of Psychiatry, Shandong Mental Health Center, Jinan 250014, China
| | - Xianbiao Su
- Sixth Department of Psychiatry, Shandong Mental Health Center, Jinan 250014, China
| | - Hongchang Zhang
- Sixth Department of Psychiatry, Shandong Mental Health Center, Jinan 250014, China
| | - Jiashu Ma
- School of Mental Health, Jining Medical University, Jining Shandong 272067
| | - Houming Zhu
- School of Mental Health, Jining Medical University, Jining Shandong 272067
| | - Ludong Bai
- Sixth Department of Psychiatry, Shandong Mental Health Center, Jinan 250014, China
| | - Ranran Li
- Sixth Department of Psychiatry, Shandong Mental Health Center, Jinan 250014, China.
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Liang J, Wu S, Shen M, Lu A, Tan L, Luo J, Feng J, Cao Y, Wang J, He J. Application of multiplanar reconstruction and 3D printing in anterior cruciate ligament revision. Zhong Nan Da Xue Xue Bao Yi Xue Ban 2024; 49:95-112. [PMID: 38615171 PMCID: PMC11017017 DOI: 10.11817/j.issn.1672-7347.2024.230081] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Subscribe] [Scholar Register] [Received: 03/06/2023] [Indexed: 04/15/2024]
Abstract
OBJECTIVES Anterior cruciate ligament injury is the most common type of knee joint ligament injury. Anterior cruciate ligament reconstruction has a high failure rate, with bone tunnel abnormalities as the most significant factor in these failures. Digital orthopedic technology can effectively develop implementation plans for the revision, thus increasing the success rate. This study aims to develop a surgical plan for anterior cruciate ligament revision by employing multiplanar reconstruction (MPR) for measuring bone tunnel position and diameter, and simulating bone tunnel creation via 3D printing preoperatively. METHODS A total of 12 patients who underwent anterior cruciate ligament revision at the Third Xiangya Hospital of Central South University between 2014 and 2021 were retrospectively studied. The data included patient demographics, preoperative formulated knee joint 3D printing models, and preoperative knee CT scans. The study measured the bone tunnel's diameter and position to guide the establishment of revision bone tunnels during surgery, reassessed the postoperative bone tunnels, and evaluated knee joint functional scores [including International Knee Documentation Committee Knee Evaluation Form (IKDC) score, Lysholm score, and Tegner exercise level score]. RESULTS Preoperative measurements revealed suboptimal femoral tunnels positions in 4 patients and tibial tunnels positions in 2 patients. MPR and 3D printing technology were used to guide the establishment of a new bone canal during surgery, and postoperative measurements were satisfactory for all patients. Preoperative measurements demonstrated the interclass correlation coefficient for femoral tunnels and tibial tunnels diameters were 0.843 (P<0.05) and 0.889 (P<0.001), respectively. Meanwhile, the intraclass correlation coefficient were 0.811 (P<0.05) and 0.784 (P<0.05), respectively. The intraoperative diameter of femoral and tibial tunnels showed excellent correlation with postoperative CT measurements, with intraclass correlation coefficient values of 0.995 (P<0.001) and 0.987 (P<0.001), respectively. All bone tunnel positions were within the normal range. At the final follow-up, knee joint function scores in all 12 patients improved significantly compared to pre-surgery (P<0.001), and the reoperation rate was zero. CONCLUSIONS MPR and 3D printing technology can accurately measure the parameters of reconstructed anterior cruciate ligament bone tunnels. Personalized revision plans for patients with reconstruction failure enhances the success rate of revision surgery and improves patient prognosis.
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Affiliation(s)
- Jiehui Liang
- Department of Orthopedics, Third Xiangya Hospital, Central South University, Changsha 410013.
- Department of Orthopedics, Xiangtan Central Hospital, Xiangtan Hunan 411100.
| | - Song Wu
- Department of Orthopedics, Third Xiangya Hospital, Central South University, Changsha 410013
| | - Minren Shen
- Department of Orthopedics, Third Xiangya Hospital, Central South University, Changsha 410013
| | - Anjie Lu
- Department of Orthopedics, Third Xiangya Hospital, Central South University, Changsha 410013
| | - Lingjie Tan
- Department of Orthopedics, Hunan Provincial People's Hospital, Changsha 410012
| | - Jiewen Luo
- Department of Clinical Medicine, Xiangya School of Medicine, Central South University, Changsha 410013
| | - Jing Feng
- Department of Orthopedics, Changsha Central Hospital, Changsha 410028
| | - Yangbo Cao
- Department of Clinical Medicine, Xiangya School of Medicine, Central South University, Changsha 410013
| | - Jiaoju Wang
- School of Mathematics and Statistics, Central South University, Changsha 410083, China
| | - Jinshen He
- Department of Orthopedics, Third Xiangya Hospital, Central South University, Changsha 410013
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Luo X, Wan T, Ding Z, Hou X, Wang J, Guo Q, Song Z. Activation of A1 reactive astrocytes in the medullary dorsal horn of rats participates in the chronification of trigeminal neuralgia. Zhong Nan Da Xue Xue Bao Yi Xue Ban 2024; 49:21-28. [PMID: 38615162 PMCID: PMC11017030 DOI: 10.11817/j.issn.1672-7347.2024.230303] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Subscribe] [Scholar Register] [Received: 07/13/2023] [Indexed: 04/15/2024]
Abstract
OBJECTIVES The activation of astrocytes is an important process in the formation of chronic pain. This study aims to observe the activation of A1 reactive astrocytes in the medullary dorsal horn in the rat model of trigeminal neuralgia, and to explore the mechanism of central sensitization caused by A1 reactive astrocyte. METHODS The adult male rats were randomly divided into a sham group and a chronic constriction injury of infraorbital nerve (ION-CCI) group. The facial mechanical pain threshold and thermal withdrawal latency were measured before the operation and on the 1st, 3rd, 7th, 10th, and 14th day after the operation. After pain behavior observation, the expression of glial fibrillary acidic protein (GFAP) in the medullary dorsal horn was observed by immunohistochemistry and immunofluorescence colocalization of GFAP, complement 3 (C3)/S100A10, and 4', 6-diamidino-2-phenylindole (DAPI) was analyzed. Primary astrocytes were cultured and randomly divided into a naive group and a DHK group. The DHK group was treated with 1 mmol/L of astrocyte activation inhibitor dihydrokainic acid (DHK). Fura-2/AM was used to stain the astrocytes and the calcium wave of the 2 groups under the stimulation of high potassium was recorded and compared. The expression of C3 was detected by Western blotting. RESULTS The facial mechanical pain threshold and thermal withdrawal latency of the ION-CCI group were significantly lower than those of the sham group (both P<0.05). There were a large number of GFAP positive astrocytes in the medullary dorsal horn of the ION-CCI group. The fluorescence intensity of GFAP in the ION-CCI group was higher than that in the sham group (P<0.05). GFAP and C3/S100A10 were co-expressed in astrocytes. Compared with the sham group, the fluorescence intensity of C3 and the protein expression of C3 in the ION-CCI group were increased (both P<0.05). The expression of C3 in ION-CCI group was significantly increased (P<0.05). Compared with the naive group, the C3 protein expression was significantly decreased in the DHK group (P<0.05). The intensity of calcium fluorescence was increased after high potassium stimulation in both groups. Furthermore, the peak and increase amplitude of calcium fluorescence in the naive group were much higher than those in the DHK group (both P<0.05). CONCLUSIONS A1 reactive astrocytes in the medullary dorsal horn of trigeminal neuralgia model rats are increased significantly, which may participate in central sensitization of trigeminal neuralgia by impacting astrocyte calcium wave.
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Affiliation(s)
- Xiao Luo
- Department of Anesthesiology, Xiangya Hospital, Central South University, Changsha 410008, China.
| | - Tong Wan
- Department of Anesthesiology, Xiangya Hospital, Central South University, Changsha 410008, China
| | - Zhuofeng Ding
- Department of Anesthesiology, Xiangya Hospital, Central South University, Changsha 410008, China
| | - Xinran Hou
- Department of Anesthesiology, Xiangya Hospital, Central South University, Changsha 410008, China
| | - Jian Wang
- Department of Anesthesiology, Xiangya Hospital, Central South University, Changsha 410008, China
| | - Qulian Guo
- Department of Anesthesiology, Xiangya Hospital, Central South University, Changsha 410008, China
| | - Zongbin Song
- Department of Anesthesiology, Xiangya Hospital, Central South University, Changsha 410008, China.
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Wu W, Zhu L, Dou Z, Hou Q, Wang S, Yuan Z, Li B. Ghrelin in Focus: Dissecting Its Critical Roles in Gastrointestinal Pathologies and Therapies. Curr Issues Mol Biol 2024; 46:948-964. [PMID: 38275675 PMCID: PMC10813987 DOI: 10.3390/cimb46010061] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2023] [Revised: 01/11/2024] [Accepted: 01/17/2024] [Indexed: 01/27/2024] Open
Abstract
This review elucidates the critical role of ghrelin, a peptide hormone mainly synthesized in the stomach in various gastrointestinal (GI) diseases. Ghrelin participates in diverse biological functions ranging from appetite regulation to impacting autophagy and apoptosis. In sepsis, it reduces intestinal barrier damage by inhibiting inflammatory responses, enhancing GI blood flow, and modulating cellular processes like autophagy and apoptosis. Notably, in inflammatory bowel disease (IBD), serum ghrelin levels serve as markers for distinguishing between active and remission phases, underscoring its potential in IBD treatment. In gastric cancer, ghrelin acts as an early risk marker, and due to its significant role in increasing the proliferation and migration of gastric cancer cells, the ghrelin-GHS-R axis is poised to become a target for gastric cancer treatment. The role of ghrelin in colorectal cancer (CRC) remains controversial; however, ghrelin analogs have demonstrated substantial benefits in treating cachexia associated with CRC, highlighting the therapeutic potential of ghrelin. Nonetheless, the complex interplay between ghrelin's protective and potential tumorigenic effects necessitates a cautious approach to its therapeutic application. In post-GI surgery scenarios, ghrelin and its analogs could be instrumental in enhancing recovery and reducing complications. This article accentuates ghrelin's multifunctionality, shedding light on its influence on disease mechanisms, including inflammatory responses and cancer progression, and examines its therapeutic potential in GI surgeries and disorders, advocating for continued research in this evolving field.
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Affiliation(s)
- Wei Wu
- Department of Intensive Care Medicine, The First School of Clinical Medicine, Lanzhou University, Lanzhou 730000, China; (W.W.); (Q.H.); (S.W.); (Z.Y.)
| | - Lei Zhu
- Department of Intensive Care Medicine, The First Hospital of Lanzhou University, Lanzhou 730000, China; (L.Z.); (Z.D.)
| | - Zhimin Dou
- Department of Intensive Care Medicine, The First Hospital of Lanzhou University, Lanzhou 730000, China; (L.Z.); (Z.D.)
| | - Qiliang Hou
- Department of Intensive Care Medicine, The First School of Clinical Medicine, Lanzhou University, Lanzhou 730000, China; (W.W.); (Q.H.); (S.W.); (Z.Y.)
| | - Sen Wang
- Department of Intensive Care Medicine, The First School of Clinical Medicine, Lanzhou University, Lanzhou 730000, China; (W.W.); (Q.H.); (S.W.); (Z.Y.)
| | - Ziqian Yuan
- Department of Intensive Care Medicine, The First School of Clinical Medicine, Lanzhou University, Lanzhou 730000, China; (W.W.); (Q.H.); (S.W.); (Z.Y.)
| | - Bin Li
- Department of Intensive Care Medicine, The First School of Clinical Medicine, Lanzhou University, Lanzhou 730000, China; (W.W.); (Q.H.); (S.W.); (Z.Y.)
- Department of Intensive Care Medicine, The First Hospital of Lanzhou University, Lanzhou 730000, China; (L.Z.); (Z.D.)
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Cui J, Yu T, Lv R, Liu J, Fan H, Yan W, Xu J, Du C, Deng S, Sui W, Ho M, Xu Y, Anderson KC, Dong X, Qiu L, An G. Longitudinal genetically detectable minimal residual disease by fluorescence in situ hybridization confers a poor prognosis in myeloma. Ther Adv Med Oncol 2024; 16:17588359231221340. [PMID: 38249329 PMCID: PMC10799601 DOI: 10.1177/17588359231221340] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2023] [Accepted: 11/29/2023] [Indexed: 01/23/2024] Open
Abstract
Background Deeper depth of response (DpR) after induction therapy, especially gain of negative minimal residual disease (MRD), has been linked to prolonged survival in multiple myeloma (MM). However, flow-MRD examination focuses on the numbers but not on the biological characteristics of residual plasma cells (PCs). Objectives To explore whether the genetic features of residual tumor cells affect the survival time of patients with MM. Design A retrospective cohort study. Methods We investigated the clonality of cytogenetic abnormalities (CAs) of the residual PCs using interphase fluorescence in situ hybridization (iFISH) in the National Longitudinal Cohort of Hematological Diseases in China (NCT04645199). Here, a longitudinal cohort of 269 patients with patient-paired diagnostic and post-induction iFISH results was analyzed. Results Persistent CAs after induction therapy were detected in about half of the patients (118/269, 43%), and patients with undetectable CAs showed significantly improved survival compared with those with genetically detectable MRD [median progression-free survival (mPFS): 59.7 versus 35.7 months, p < 0.001; median overall survival (mOS): 97.1 versus 68.8 months, p = 0.011]. In addition, different patterns of therapy-induced clonal evolution were observed by comparing the clonal structure of residual PCs with paired baseline samples. Patients who maintained at a high risk during follow-up had the worst survival (mPFS: 30.5 months; mOS: 54.4 months), while those who returned to lower risk or had iFISH- at both time points had the best survival (mPFS: 62.0 months, mOS: not reached). Conclusion These findings highlighted the prognostic value of genetic testing in residual tumor cells, which may provide a deep understanding of clonal evolution and guide clinical therapeutic strategies.
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Affiliation(s)
- Jian Cui
- State Key Laboratory of Experimental Hematology, National Clinical Research Center for Blood Diseases, Haihe Laboratory of Cell Ecosystem, Institute of Hematology and Blood Diseases Hospital, Chinese Academy of Medical Science and Peking Union Medical College, Tianjin, China
- Tianjin Institutes of Health Science, Tianjin, China
| | - Tengteng Yu
- State Key Laboratory of Experimental Hematology, National Clinical Research Center for Blood Diseases, Haihe Laboratory of Cell Ecosystem, Institute of Hematology and Blood Diseases Hospital, Chinese Academy of Medical Science and Peking Union Medical College, Tianjin, China
- Tianjin Institutes of Health Science, Tianjin, China
- LeBow Institute for Myeloma Therapeutics and Jerome Lipper Center for Multiple Myeloma Center, Dana-Farber Cancer Institute, Harvard Medical School, Boston, MA, USA
| | - Rui Lv
- State Key Laboratory of Experimental Hematology, National Clinical Research Center for Blood Diseases, Haihe Laboratory of Cell Ecosystem, Institute of Hematology and Blood Diseases Hospital, Chinese Academy of Medical Science and Peking Union Medical College, Tianjin, China
- Tianjin Institutes of Health Science, Tianjin, China
| | - Jiahui Liu
- State Key Laboratory of Experimental Hematology, National Clinical Research Center for Blood Diseases, Haihe Laboratory of Cell Ecosystem, Institute of Hematology and Blood Diseases Hospital, Chinese Academy of Medical Science and Peking Union Medical College, Tianjin, China
- Tianjin Institutes of Health Science, Tianjin, China
| | - Huishou Fan
- State Key Laboratory of Experimental Hematology, National Clinical Research Center for Blood Diseases, Haihe Laboratory of Cell Ecosystem, Institute of Hematology and Blood Diseases Hospital, Chinese Academy of Medical Science and Peking Union Medical College, Tianjin, China
- Tianjin Institutes of Health Science, Tianjin, China
| | - Wenqiang Yan
- State Key Laboratory of Experimental Hematology, National Clinical Research Center for Blood Diseases, Haihe Laboratory of Cell Ecosystem, Institute of Hematology and Blood Diseases Hospital, Chinese Academy of Medical Science and Peking Union Medical College, Tianjin, China
- Tianjin Institutes of Health Science, Tianjin, China
| | - Jingyu Xu
- State Key Laboratory of Experimental Hematology, National Clinical Research Center for Blood Diseases, Haihe Laboratory of Cell Ecosystem, Institute of Hematology and Blood Diseases Hospital, Chinese Academy of Medical Science and Peking Union Medical College, Tianjin, China
- Tianjin Institutes of Health Science, Tianjin, China
| | - Chenxing Du
- State Key Laboratory of Experimental Hematology, National Clinical Research Center for Blood Diseases, Haihe Laboratory of Cell Ecosystem, Institute of Hematology and Blood Diseases Hospital, Chinese Academy of Medical Science and Peking Union Medical College, Tianjin, China
- Tianjin Institutes of Health Science, Tianjin, China
| | - Shuhui Deng
- State Key Laboratory of Experimental Hematology, National Clinical Research Center for Blood Diseases, Haihe Laboratory of Cell Ecosystem, Institute of Hematology and Blood Diseases Hospital, Chinese Academy of Medical Science and Peking Union Medical College, Tianjin, China
- Tianjin Institutes of Health Science, Tianjin, China
| | - Weiwei Sui
- State Key Laboratory of Experimental Hematology, National Clinical Research Center for Blood Diseases, Haihe Laboratory of Cell Ecosystem, Institute of Hematology and Blood Diseases Hospital, Chinese Academy of Medical Science and Peking Union Medical College, Tianjin, China
- Tianjin Institutes of Health Science, Tianjin, China
| | - Matthew Ho
- Division of General Internal Medicine, Department of Medicine, Mayo Clinic, Rochester, MN, USA
| | - Yan Xu
- State Key Laboratory of Experimental Hematology, National Clinical Research Center for Blood Diseases, Haihe Laboratory of Cell Ecosystem, Institute of Hematology and Blood Diseases Hospital, Chinese Academy of Medical Science and Peking Union Medical College, Tianjin, China
- Tianjin Institutes of Health Science, Tianjin, China
| | - Kenneth C. Anderson
- Department of Hematology, Tianjin Medical University General Hospital, Tianjin, China
| | - Xifeng Dong
- Department of Hematology, Tianjin Medical University General Hospital, 154 Anshandao, Heping District, Tianjin 300052, China
| | - Lugui Qiu
- Institute of Hematology and Blood Diseases Hospital, Chinese Academy of Medical Sciences, 288 Nanjing Road, Heping District, Tianjin 300020, China
| | - Gang An
- Institute of Hematology and Blood Diseases Hospital, Chinese Academy of Medical Sciences, 288 Nanjing Road, Heping District, Tianjin 300020, China
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Wang X, Wang S, Cui Y. Protective effects of the salt -induced kinase inhibitor HG -9 -91 -01 on sepsis -associated cognitive dysfunction in mice and the underlying mechanisms. Zhong Nan Da Xue Xue Bao Yi Xue Ban 2023; 48:1793-1803. [PMID: 38448372 PMCID: PMC10930753 DOI: 10.11817/j.issn.1672-7347.2023.230208] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Subscribe] [Scholar Register] [Received: 05/16/2023] [Indexed: 03/08/2024]
Abstract
OBJECTIVES Sepsis-associated cognitive dysfunction is a common complication in patients with sepsis and lack of effective treatment. Its pathological mechanisms remain unclear. Salt-induced kinase (SIK) is an important molecule in the regulation of metabolism, immunity, and inflammatory response. It is associated with the development of many neurological diseases. This study aims to investigate the expression of SIK in the hippocampus of septic mice, and to evaluate the role and mechanism of the SIK inhibitor HG-9-91-01 in sepsis-associated cognitive dysfunction. METHODS Firstly, C57BL/6 mice were randomly divided into a control group (Con group) and a sepsis model group [lipopolysaccharide (LPS) group]. The model group was injected intraperitoneally with LPS at a dose of 8 mg/kg and the Con group was injected with an equal volume of normal saline. Hippocampal tissues were harvested at 1, 3, and 6 days after injection and the expressions of SIK1, SIK2, and SIK3 were detected by real-time fluorescence quantitative PCR (qPCR) and Western blotting. Secondly, C57BL/6 mice were randomly divided into a Con group, a LPS group, and a SIK inhibitor group (HG group). The LPS and HG groups were injected with LPS to establish a sepsis model; in the HG group, HG-9-91-01 (10 mg/kg) was injected intraperitoneally at 3-6 days after LPS injection, and the LPS group was injected with the same volume of vehicle. Cognitive function was assessed at 7-11 days after LPS injection using the Morris water maze (MWM). Hippocampal tissues were harvested after the behavioral tests, and the mRNA levels of inflammatory factors and microglial markers were assessed by qPCR. The protein levels of inducible nitric oxide synthase (iNOS), CD68, ionized calcium binding adaptor molecule 1 (Iba-1), N-methyl-D-aspartate (NMDA) receptor (NR) subunit, cAMP response element-binding protein (CREB)-regulated transcription coactivator 1 (CRTC1), and insulin-like growth factor 1 (IGF-1) were detected by Western blotting. Immunohistochemistry (IHC) was used to detect the expression of Iba-1 positive cells in the CA1, CA3 and dentate gyrus (DG) of the hippocampus, followed by Sholl analysis. RESULTS Compared with the Con group, the mRNA and protein levels of SIK1, SIK2, and SIK3 in the hippocampus were increased in the LPS group (all P<0.05). Compared with the Con group, mice in the LPS group had a significantly longer escape latency, a lower percentage of target quadrant dwell time and a reduced locomotor speed (all P<0.05); the HG group had a decreased escape latency and an increased percentage of time spent in the target quadrant in comparison with the LPS group (both P<0.05). The mRNA levels of inflammatory factors [tumor necrosis factor-α (TNF-α), interleukin-1β (IL-1β), interleukin-6 (IL-6)], and the M1-type microglial markers iNOS and CD68 in the hippocampus of the LPS group were increased in comparison with the Con group, while the M2-type microglial markers CD206 and arginase-1 (Arg-1) were decreased. Compared with the LPS group, the mRNA levels of TNF-α, IL-1β, IL-6, and iNOS were downregulated, while the levels of CD206 and Arg-1 were upregulated in the HG group (all P<0.05). The protein levels of iNOS, CD68, and Iba-1 in the hippocampus of the LPS group were increased in comparison with the Con group, but they were downregulated in the HG group in comparison with the LPS group (all P<0.05). The number of Iba-1 positive cells in CA1, CA3, and DG of the hippocampus was increased in the LPS group in comparison with the Con group, but they were decreased in the HG group in comparison with the LPS group (all P<0.05). Sholl analysis showed that the number of intersections at all radii between 8-38 µm from the microglial soma was decreased in the LPS group in comparison with the Con group (all P<0.05). Compared with the LPS group, the number of intersections at all radii between 14-20 µm was significantly increased in the HG group (all P<0.05). The protein levels of NR subunit NR1, NR2A, NR2B, and IGF-1 were downregulated in the hippocampus of the LPS group in comparison with the Con group, while the expression of phosphorylated CRTC1 (p-CRTC1) was increased. Compared with the LPS group, the levels of NR1, NR2A, NR2B, and IGF-1 were upregulated, while p-CRTC1 was downregulated in the HG group (all P<0.05). CONCLUSIONS SIK expression is upregulated in the hippocampus of septic mice. The SIK inhibitor HG-9-91-01 ameliorates sepsis-associated cognitive dysfunction in mice, and the mechanism may involve in the activation of the CRTC1/IGF-1 pathway, inhibition of neuroinflammation, and enhancement of synaptic plasticity.
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Affiliation(s)
- Xueqin Wang
- Department of Anatomy and Neurobiology, School of Basic Medical Science, Central South University, Changsha 410013.
- Hunan Provincial University Key Laboratory of the Fundamental and Clinical Research on Neurodegenerative Diseases, Changsha Medical University, Changsha 410219.
| | - Shuang Wang
- Department of Clinical Laboratory, Xiangya Hospital, Central South University, Changsha 410008, China
| | - Yanhui Cui
- Department of Anatomy and Neurobiology, School of Basic Medical Science, Central South University, Changsha 410013.
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Luo Y, Lin T, Xian L, Zhao Y, Li W, Liu J, Lan M, Shan H. Clinical significance of flow cytometry in detection of minimal residual disease in cerebrospinal fluid. Zhong Nan Da Xue Xue Bao Yi Xue Ban 2023; 48:1838-1843. [PMID: 38448377 PMCID: PMC10930749 DOI: 10.11817/j.issn.1672-7347.2023.230243] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Subscribe] [Scholar Register] [Received: 08/16/2023] [Indexed: 03/08/2024]
Abstract
OBJECTIVES Central nervous system leukemia (CNSL) is one of the main causes of recurrence and death in patients with acute leukemia. This study aims to dynamically monitor minimal residual disease (MRD) in cerebrospinal fluid and bone marrow of patients with different types of acute leukemia by flow cytometry (FCM), and to compare the timeliness and consistency of MRD detection between the 2 methods to further explore the application value of monitoring MRD in cerebrospinal fluid. METHODS A total of 199 patients with acute leukemia admitted to the Guangdong Provincial people's Hospital between October 2018 and January 2022 were retrospectively analyzed, and multiparametric FCM method was adopted to summarize and analyze MRD in cerebrospinal fluid of patients with different types of leukemia and MRD in cerebrospinal fluid and bone marrow specimens of the same patients, and its role in assessing the prognostic value of patients was discussed. RESULTS Among the 199 acute leukemia cases, a total of 31 cases (15.58%) were positive MRD in the cerebrospinal fluid, of which 18 cases (58%) were detected earlier than the corresponding bone marrow specimens. Among the 19 patients with acute T lymphoblastic leukemia, 134 patients with acute B lymphoblastic leukemia, and 46 patients with acute myeloid leukemia counted, there were 4, 18, and 9 patients with positive MRD in the cerebrospinal fluid. The Kappa value of the concordance test between the results of cerebrospinal fluid MRD and bone marrow MRD in different types of acute leukemia was only 0.156, demonstrating a low concordance between them. CONCLUSIONS Dynamic monitoring of cerebrospinal fluid MRD by FCM can be used as a monitoring index for central nervous system leukemia, and monitoring cerebrospinal fluid can detect MRD earlier compared with bone marrow, which complements each other as a sensitive index for evaluating prognosis with significant guidance in clinic.
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Affiliation(s)
- Yanfei Luo
- Department of Clinical Laboratory Medicine, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou 510000, China.
| | - Ting Lin
- Department of Clinical Laboratory Medicine, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou 510000, China
| | - Luhua Xian
- Department of Clinical Laboratory Medicine, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou 510000, China
| | - Yue Zhao
- Department of Clinical Laboratory Medicine, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou 510000, China
| | - Wenmin Li
- Department of Clinical Laboratory Medicine, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou 510000, China
| | - Junru Liu
- Department of Clinical Laboratory Medicine, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou 510000, China
| | - Mingwei Lan
- Department of Clinical Laboratory Medicine, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou 510000, China
| | - Huizhuang Shan
- Department of Clinical Laboratory Medicine, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou 510000, China.
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Li J, Chen Z, Bai Y, Wei Y, Guo D, Liu Z, Niu Y, Shi B, Zhang X, Cai Y, Zhao Z, Hu J, Wang J, Liu X, Li S, Zhao F. Integration of ATAC-Seq and RNA-Seq Analysis to Identify Key Genes in the Longissimus Dorsi Muscle Development of the Tianzhu White Yak. Int J Mol Sci 2023; 25:158. [PMID: 38203329 PMCID: PMC10779322 DOI: 10.3390/ijms25010158] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2023] [Revised: 12/18/2023] [Accepted: 12/20/2023] [Indexed: 01/12/2024] Open
Abstract
During the postnatal stages, skeletal muscle development undergoes a series of meticulously regulated alterations in gene expression. However, limited studies have employed chromatin accessibility to unravel the underlying molecular mechanisms governing muscle development in yak species. Therefore, we conducted an analysis of both gene expression levels and chromatin accessibility to comprehensively characterize the dynamic genome-wide chromatin accessibility during muscle growth and development in the Tianzhu white yak, thereby elucidating the features of accessible chromatin regions throughout this process. Initially, we compared the differences in chromatin accessibility between two groups and observed that calves exhibited higher levels of chromatin accessibility compared to adult cattle, particularly within ±2 kb of the transcription start site (TSS). In order to investigate the correlation between alterations in chromatin accessible regions and variations in gene expression levels, we employed a combination of ATAC-seq and RNA-seq techniques, leading to the identification of 18 central transcriptional factors (TFs) and 110 key genes with significant effects. Through further analysis, we successfully identified several TFs, including Sp1, YY1, MyoG, MEF2A and MEF2C, as well as a number of candidate genes (ANKRD2, ANKRD1, BTG2 and LMOD3) which may be closely associated with muscle growth and development. Moreover, we constructed an interactive network program encompassing hub TFs and key genes related to muscle growth and development. This innovative approach provided valuable insights into the molecular mechanism underlying skeletal muscle development in the postnatal stages of Tianzhu white yaks while also establishing a solid theoretical foundation for future research on yak muscle development.
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Affiliation(s)
| | | | | | | | | | | | | | | | | | | | - Zhidong Zhao
- Gansu Key Laboratory of Herbivorous Animal Biotechnology, College of Animal Science and Technology, Gansu Agricultural University, Lanzhou 730070, China
| | - Jiang Hu
- Gansu Key Laboratory of Herbivorous Animal Biotechnology, College of Animal Science and Technology, Gansu Agricultural University, Lanzhou 730070, China
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Xue C, Wang Y, He Z, Lu Z, Wu F, Wang Y, Zhen Y, Meng J, Shahzad K, Yang K, Wang M. Melatonin disturbed rumen microflora structure and metabolic pathways in vitro. Microbiol Spectr 2023; 11:e0032723. [PMID: 37929993 PMCID: PMC10714781 DOI: 10.1128/spectrum.00327-23] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2023] [Accepted: 10/01/2023] [Indexed: 11/07/2023] Open
Abstract
IMPORTANCE In in vitro studies, it has been found that the effects of MLT on rumen microorganisms and metabolites can change the rumen flora structure, significantly inhibit the relative abundance of harmful Acinetobacter, and improve the relative abundance of beneficial bacteria. MLT may regulate the "arginine-glutathione" pathway, "phenylalanine, tyrosine and tryptophan biosynthesis-tryptophan generation" branch, "tryptophan-kynurenine" metabolism, and "tryptophan-tryptamine-serotonin" pathway through microorganisms.
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Affiliation(s)
- Chun Xue
- College of Animal Science and Technology, Yangzhou University, Yangzhou, China
- State Key Laboratory of Sheep Genetic Improvement and Healthy Production, Xinjiang Academy of Agricultural Reclamation Sciences, Shihezi, China
| | - Yifan Wang
- College of Animal Science and Technology, Yangzhou University, Yangzhou, China
| | - Zhaoyuan He
- College of Animal Science and Technology, Guangxi University, Nanning, China
| | - Zhiqi Lu
- Ningxia Dairy Science and Innovation Center of Guangming Animal Husbandry Co., Ltd., Zhongwei, China
| | - Feifan Wu
- College of Animal Science and Technology, Yangzhou University, Yangzhou, China
| | - Yusu Wang
- College of Animal Science and Technology, Yangzhou University, Yangzhou, China
| | - Yongkang Zhen
- College of Animal Science and Technology, Yangzhou University, Yangzhou, China
| | - Jimeng Meng
- State Key Laboratory of Sheep Genetic Improvement and Healthy Production, Xinjiang Academy of Agricultural Reclamation Sciences, Shihezi, China
| | - Khuram Shahzad
- Department of Biosciences, COMSATS University Islamabad, Islamabad, Pakistan
| | - Kailun Yang
- College of Animal Science, Xinjiang Agricultural University, Urumqi, China
| | - Mengzhi Wang
- College of Animal Science and Technology, Yangzhou University, Yangzhou, China
- State Key Laboratory of Sheep Genetic Improvement and Healthy Production, Xinjiang Academy of Agricultural Reclamation Sciences, Shihezi, China
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Hu C, Kuang C, Zhou W. Advances in the pathogenesis of multiple myeloma bone disease. Zhong Nan Da Xue Xue Bao Yi Xue Ban 2023; 48:1403-1410. [PMID: 38044652 PMCID: PMC10929876 DOI: 10.11817/j.issn.1672-7347.2023.220534] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Subscribe] [Scholar Register] [Received: 10/13/2022] [Indexed: 12/05/2023]
Abstract
Multiple myeloma (MM) is a clonal proliferative malignant tumor of plasma cells in bone marrow. With the aging of population in China, the incidence of MM is on the rise. Multiple myeloma bone disease (MBD) is one of the common clinical manifestations of MM, and 80%-90% of MM patients are accompanied by osteolytic lesions at the time of their first visit to the clinic. MBD not only increases the disability rate of patients, but also severely reduces the physical function of patients due to skeletal lesions and bone-related events. Currently available drugs for treating of MBD are ineffective and associated with side effects. Therefore, it is important to find new therapeutic approaches for the treatment of MBD. It is generally believed that the increased osteoclast activity and suppressed osteoblast function are the main pathologic mechanisms for MBD. However, more and more studies have suggested that soluble molecules in the bone marrow microenvironment, including cytokines, extracellular bodies, and metabolites, play an important role in the development of MBD. Therefore, exploring the occurrence and potential molecular mechanisms for MBD from multiple perspectives, and identifying the predictive biomarkers and potential therapeutic targets are of significance for the clinical treatment of MBD.
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Affiliation(s)
- Cong Hu
- Institute of Oncology, School of Basic Medicine, Central South University, Changsha 410078, China.
| | - Chunmei Kuang
- Institute of Oncology, School of Basic Medicine, Central South University, Changsha 410078, China
| | - Wen Zhou
- Institute of Oncology, School of Basic Medicine, Central South University, Changsha 410078, China.
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19
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Liu L, Guo J, Gao W, Gao M, Ma X. Research progress in the role of non-coding RNAs and embryo implantation. Zhong Nan Da Xue Xue Bao Yi Xue Ban 2023; 48:1377-1387. [PMID: 38044649 PMCID: PMC10929864 DOI: 10.11817/j.issn.1672-7347.2023.220485] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Subscribe] [Scholar Register] [Received: 09/26/2022] [Indexed: 12/05/2023]
Abstract
Non-coding RNA (ncRNA) refers to RNA that lack the ability to encode protein. Based on their distinct biological characteristics, ncRNA are mainly classified into microRNA (miRNA), long non-coding RNA (lncRNA), and circular RNA (circRNA). NcRNA plays a crucial regulatory role in various biological processes. Pregnancy is a highly intricate physiological process that requires successful completion of multiple steps. Embryo implantation, as a key event of pregnancy, which is regulated by numerous factors, including embryo development, endometrial changes, and the maternal-embryo crosstalk. A diverse array of regulatory mechanisms ensures the accomplishment of embryo localization, adhesion, invasion, and ultimately successful implantation. MiRNA, lncRNA, and circRNA are extensively studied ncRNA molecules at present, which play an important role in the physiological and pathological processes associated with embryo implantation through targeting and regulating the expression of multiple cytokine and genes. With advancements in molecular biology technology, it is anticipated that ncRNA will contribute to the prediction and enhancement of clinical pregnancy outcomes from a molecular perspective.
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Affiliation(s)
- Lin Liu
- Reproductive Center, First Hospital, Lanzhou University, Lanzhou 730000.
| | - Jiayi Guo
- Department of Ultrasound Diagnosis, Tongji Medical College, Southern Medical University, Guangzhou 510280
| | - Wenxin Gao
- Reproductive Center, First Hospital, Lanzhou University, Lanzhou 730000
| | - Mengmeng Gao
- Department of Radiology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Xiaoling Ma
- Reproductive Center, First Hospital, Lanzhou University, Lanzhou 730000.
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20
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Hu H, Ou Y, Cao Y, Peng Y, Ouyang R. Residents ' cognition and attitude towards obstructive sleep apnea hypopnea syndrome. Zhong Nan Da Xue Xue Bao Yi Xue Ban 2023; 48:1350-1358. [PMID: 38044646 PMCID: PMC10929869 DOI: 10.11817/j.issn.1672-7347.2023.230185] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Subscribe] [Scholar Register] [Received: 05/10/2023] [Indexed: 12/05/2023]
Abstract
OBJECTIVES Obstructive sleep apnea hypopnea syndrome (OSAHS) may cause damage to many organs of the body and is a potentially fatal disease, which has a serious impact on health and quality of life for patients. Residents play an important role in the screening of OSAHS. This study aims to evaluate the cognition and attitude level of residents towards OSAHS, and to provide evidence for the intervention and diagnosis of the disease. METHODS A cross-sectional survey of residents at a teaching hospital was conducted from December 1, 2021 to December 1, 2022. A questionnaire was used to assess residents' knowledge, attitudes, and confidence in dealing with OSAHS patients. RESULTS Of the 200 residents who responded to the questionnaire, 183(91.5%) completed it. The average score on the knowledge scale of Obstructive Sleep Apnea Knowledge and Attitudes Questionnaire (OSAKA) for all residents in this study was 13.12±2.46. The knowledge score of internal medicine residents was higher than that of non-internal medicine residents (13.46±2.22 vs 12.33±2.83, P<0.05), and the mean knowledge score of residents with respiratory rotation experience was higher than that of residents without respiratory rotation experience (13.46±2.35 vs 12.69±2.56, P<0.05). The average score of the attitude/confidence scale on the OSAKA questionnaire for all residents in this study was 3.64±0.62. Of the 183 residents, 60.7% of residents considered OSAHS to be extremely important as a clinical disorder, 72.7% of residents were confident in the identification of OSAHS patients, but only 50.3% were confident in the management of OSAHS patients, and only 42.6% were confident in the management of patients treated with continuous positive pressure ventilation. There was a weak positive correlation among levels of knowledge, attitude, and confidence. CONCLUSIONS Most residents are aware of the clinical importance of OSAHS, but their knowledge and confidence for OSAHS diagnosis and management are still insufficient, and they need to be trained to manage OSAHS patients.
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Affiliation(s)
- Hui Hu
- Department of Respiratory and Critical Care Medicine, Second Xiangya Hospital, Central South University, Changsha 410011, China.
| | - Yanru Ou
- Department of Respiratory and Critical Care Medicine, Second Xiangya Hospital, Central South University, Changsha 410011, China
| | - Ying Cao
- Department of Respiratory and Critical Care Medicine, Second Xiangya Hospital, Central South University, Changsha 410011, China
| | - Yating Peng
- Department of Respiratory and Critical Care Medicine, Second Xiangya Hospital, Central South University, Changsha 410011, China.
| | - Ruoyun Ouyang
- Department of Respiratory and Critical Care Medicine, Second Xiangya Hospital, Central South University, Changsha 410011, China.
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21
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Pan T, Hao J, Wang Y, Duan W, Yue L, Gao X. Role in post -translational modification of M2 -type pyruvate kinase in tumorigenesis and development. Zhong Nan Da Xue Xue Bao Yi Xue Ban 2023; 48:1359-1367. [PMID: 38044647 PMCID: PMC10929867 DOI: 10.11817/j.issn.1672-7347.2023.230177] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Subscribe] [Scholar Register] [Received: 05/04/2023] [Indexed: 12/05/2023]
Abstract
PKM2, also known as M2-type pyruvate kinase, has attracted significant attention due to its crucial role in glycolysis and its abnormal expression in various tumors. With the discovery of PKM2's non-metabolic functions, the transition between its pyruvate kinase activity (in the tetrameric form in the cytoplasm) and protein kinase activity (in the dimeric form in the nucleus) has once again made PKM2 a target of interest in cancer research. Studies have shown that PKM2 is a protein susceptible to various post-translational modifications, and different post-translational modifications play important regulatory roles in processes such as PKM2 cellular localization, structure, and enzyme activity conversion. In this review, we focused on the recent progress of multiple post-translational modifications of PKM2 and their important roles in tumor initiation and development. For example, phosphorylation and acetylation promote nuclear translocation by altering PKM2 cell localization; glycosylation and ubiquitination can promote the formation of dimer structure by affecting the structural transformation of PKM2; succinylation and redox modification promoted the enhancement of PKM2 kinase activity by affecting the transformation of kinase activity. Both changes affect the structure and cell localization of PKM2 and they play a role in promoting or inhibiting tumor development via altering its kinase activity.
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Affiliation(s)
- Ting Pan
- College of Medical Technology, Qiqihar Medical University, Qiqihar Heilongjiang 161006.
| | - Jingwei Hao
- College of Medical Technology, Qiqihar Medical University, Qiqihar Heilongjiang 161006
| | - Yaoyao Wang
- College of Medical Technology, Qiqihar Medical University, Qiqihar Heilongjiang 161006
| | - Wenbo Duan
- College of Medical Technology, Qiqihar Medical University, Qiqihar Heilongjiang 161006
| | - Liling Yue
- Laboratory of Tumor Molecular Biology, Research Institute of Medicine and Pharmacy, Qiqihar Medical University, Qiqihar Heilongjiang 161006, China
| | - Xiuli Gao
- Laboratory of Tumor Molecular Biology, Research Institute of Medicine and Pharmacy, Qiqihar Medical University, Qiqihar Heilongjiang 161006, China.
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22
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Gao X, Li H, Xue D, Pan Z, Zhang Y. Clinical outcomes of capitellar fractures with posterior comminution treated with Herbert screws combined with metacarpal locking plates. BMC Musculoskelet Disord 2023; 24:937. [PMID: 38044433 PMCID: PMC10694941 DOI: 10.1186/s12891-023-07065-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/08/2022] [Accepted: 11/25/2023] [Indexed: 12/05/2023] Open
Abstract
BACKGROUND The treatment of Dubberley type B capitellar fractures, which are frequently complicated, is widely debated. This study aimed to investigate the prognostic factors and clinical outcomes of Dubberley type B capitellar fractures treated with Herbert screws combined with posterior buttress plates. METHODS Seven men and nine women (aged 30-68 years) with Dubberley type B capitellar fractures were operated on with Herbert screws combined with posterior buttress plates. The patients were classified into Dubberley types IB (seven), IIB (four), and IIIB (five). Complications and bone union were observed, and functional outcomes were evaluated by the Mayo Elbow Performance Index (MEPI). RESULTS All patients were followed up for a mean period of 23.5 months (12-30 months). All fractures healed in 8-14 weeks (mean, 10.5 weeks). No cases of non-union, elbow instability, or avascular necrosis occurred. Degenerative arthritis occurred in 7 (44%) and heterotopic ossification in 11 (69%) patients. The median MEPI score was 92.5 (interquartile range, 85-100) points, with 11 reporting excellent, 3 good, and 2 fair outcomes. The MEPI scores of type IIIB fractures were significantly lower than those of types IB and IIB fractures, while the MEPI scores of type IB and IIB fractures did not differ significantly. CONCLUSIONS Dubberley type IIIB capitellar fractures with multiple articular fragments have a poorer prognosis than type IB and IIB fractures. However, Herbert screw fixation combined with posterior metacarpal locking plates is feasible, providing satisfactory recovery of elbow joint function.
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Affiliation(s)
- Xiang Gao
- Department of Orthopedic Surgery, The Second Affiliated Hospital, Zhejiang University School of Medicine, 88 Jiefang Road, Hangzhou, 310009, China
| | - Hang Li
- Department of Orthopedic Surgery, The Second Affiliated Hospital, Zhejiang University School of Medicine, 88 Jiefang Road, Hangzhou, 310009, China
| | - Deting Xue
- Department of Orthopedic Surgery, The Second Affiliated Hospital, Zhejiang University School of Medicine, 88 Jiefang Road, Hangzhou, 310009, China
| | - Zhijun Pan
- Department of Orthopedic Surgery, The Second Affiliated Hospital, Zhejiang University School of Medicine, 88 Jiefang Road, Hangzhou, 310009, China
| | - Yujie Zhang
- Department of Orthopedic Surgery, The Second Affiliated Hospital, Zhejiang University School of Medicine, 88 Jiefang Road, Hangzhou, 310009, China.
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Wei Y, Guo D, Bai Y, Liu Z, Li J, Chen Z, Shi B, Zhao Z, Hu J, Han X, Wang J, Liu X, Li S, Zhao F. Transcriptome Analysis of mRNA and lncRNA Related to Muscle Growth and Development in Gannan Yak and Jeryak. Int J Mol Sci 2023; 24:16991. [PMID: 38069312 PMCID: PMC10707067 DOI: 10.3390/ijms242316991] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2023] [Revised: 11/22/2023] [Accepted: 11/26/2023] [Indexed: 12/18/2023] Open
Abstract
The production performance of Jeryak, resulting from the F1 generation of the cross between Gannan yak and Jersey cattle, exhibits a significantly superior outcome compared with that of Gannan yak. Therefore, we used an RNA-seq approach to identify differentially expressed mRNAs (DEMs) and differentially expressed lncRNAs (DELs) influencing muscle growth and development in Gannan yaks and Jeryaks. A total of 304 differentially expressed lncRNAs and 1819 differentially expressed mRNAs were identified based on the screening criteria of |log 2 FC| > 1 and FDR < 0.05. Among these, 132 lncRNAs and 1081 mRNAs were found to be down-regulated, while 172 lncRNAs and 738 mRNAs were up-regulated. GO and KEGG analyses showed that the identified DELs and DEMs were enriched in the entries of pathways associated with muscle growth and development. On this basis, we constructed an lncRNA-mRNA interaction network. Interestingly, two candidate DELs (MSTRG.16260.9 and MSTRG.22127.1) had targeting relationships with 16 (MYC, IGFBP5, IGFBP2, MYH4, FGF6, etc.) genes related to muscle growth and development. These results could provide a basis for further studies on the roles of lncRNAs and mRNAs in muscle growth in Gannan yaks and Jeryak breeds.
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Affiliation(s)
| | | | | | | | | | | | | | - Zhidong Zhao
- Gansu Key Laboratory of Herbivorous Animal Biotechnology, College of Animal Science and Technology, Gansu Agricultural University, Lanzhou 730070, China; (Y.W.); (D.G.); (B.S.)
| | - Jiang Hu
- Gansu Key Laboratory of Herbivorous Animal Biotechnology, College of Animal Science and Technology, Gansu Agricultural University, Lanzhou 730070, China; (Y.W.); (D.G.); (B.S.)
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Wang S, Zeng Q, Gao H, Gao S, Dai R, Hu Z. Expression of proBDNF/p75 NTR in peripheral blood lymphocytes of patients with sepsis and its impact on lymphocyte differentiation. Zhong Nan Da Xue Xue Bao Yi Xue Ban 2023; 48:1629-1638. [PMID: 38432853 PMCID: PMC10929956 DOI: 10.11817/j.issn.1672-7347.2023.230179] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Subscribe] [Scholar Register] [Received: 05/06/2023] [Indexed: 03/05/2024]
Abstract
OBJECTIVES Sepsis is a life-threatening organ dysfunction caused by the host's imbalanced response to infection. Due to lack of effective treatments, it has always been the difficulty and focus of clinical treatment of sepsis. Studies have shown that pro-brain-derived neurotrophic factor (proBDNF) binds to the high-affinity total neurotrophic factor p75 neurotrophin receptor (p75NTR), which activates downstream signaling cascades and disrupts immunological inflammation and plays an important role in the progression of sepsis. This study aims to explore the expression changes of lymphocyte-derived proBDNF/p75NTR in patients with sepsis and its effect on lymphocyte differentiation. METHODS From the healthy donors (control group, n=40) and sepsis patients (sepsis group, n=40) admitted to the hospital for the first time, peripheral blood samples and blood routine clinical detection indicators were obtained. By using flow cytometry, the proportion of lymphocyte subsets and their expression of proBDNF/p75NTR were examined. The peripheral blood lymphocytes were isolated from the control group and incubated with lipopolysaccharide (LPS). Flow cytometry analysis technology was used to detect the expression of proBDNF/p75NTR on LPS-treated lymphocyte subsets. On this basis, we investigated the effects on lymphocyte differentiation by inhibiting p75NTR. RESULTS White blood cell count, neutrophil count, and neutrophil percentage of the patients in the sepsis group at admission were significantly higher than those in the control group; on the contrary, lymphocyte count and lymphocyte percentage in the sepsis group were lower than those in the control group (all P<0.001). The patients in the sepsis group had considerably greater neutrophil/lymphocyte and monocyte/lymphocyte ratios than those in the control group (both P<0.05). In the peripheral blood of sepsis patients, proBDNF expression was upregulated on CD19+ B cells, whereas p75NTR expression was elevated on B cells, CD4+ T cells, and CD8+ T cells (all P<0.05). ProBDNF/p75NTR expression was upregulated by LPS stimulation in vitro in peripheral blood cells of the control group (P<0.05), and this tendency was similar to the expression alterations in peripheral lymphocytes of the sepsis group. Inhibition of p75NTR increased CD4+ T cell and CD19+ B cell percentages, cytokine expression of IL-4 and IL-10, and reduced IL-1β and IL-6 production (all P<0.05). CONCLUSIONS The immunosuppressive state of sepsis patients is indicated by a reduction in lymphocyte count and an increase in the proportion of inactive neutrophils. ProBDNF/p75NTR expression is upregulated in the peripheral blood lymphocytes of sepsis patients, and p75NTR inhibition may control lymphocyte differentiation involved in sepsis progression.
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Affiliation(s)
- Shuang Wang
- Department of Anesthesiology, Second Xiangya Hospital, Central South University, Changsha 410011.
- Department of Clinical Laboratory, Xiangya Hospital, Central South University, Changsha 410008.
| | - Qiuming Zeng
- Department of Neurology, Xiangya Hospital, Central South University, Changsha 410008.
| | - Hailiang Gao
- Department of Human Resources, Second Xiangya Hospital, Central South University, Changsha 410011, China
| | - Shan Gao
- Department of Anesthesiology, Second Xiangya Hospital, Central South University, Changsha 410011
| | - Ruping Dai
- Department of Anesthesiology, Second Xiangya Hospital, Central South University, Changsha 410011
| | - Zhaolan Hu
- Department of Anesthesiology, Second Xiangya Hospital, Central South University, Changsha 410011.
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Gao H, Kuang Y, Liu Y, Zhang Y, Wang P, Ma Q. Changes of plasma Rap1A levels in patients with in-stent restenosis after percutaneous coronary intervention and the underlying mechanisms. Zhong Nan Da Xue Xue Bao Yi Xue Ban 2023; 48:1650-1658. [PMID: 38432855 PMCID: PMC10929945 DOI: 10.11817/j.issn.1672-7347.2023.230285] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Subscribe] [Scholar Register] [Received: 07/04/2023] [Indexed: 03/05/2024]
Abstract
OBJECTIVES Percutaneous coronary intervention (PCI) is one of the most important treatments for coronary artery disease (CAD). However, in-stent restenosis (ISR) after PCI is a serious complication without effective measures for prevention and treatment. This study aims to investigate the Ras-related protein 1A (Rap1A) level in ISR patients and in the tumor necrosis factor-α (TNF-α)-induced inflammatory injury model of human umbilical vein endothelial cells (HUVECs), to explore the role of Rap1A in regulating TNF-α-induced inflammation in HUVECs and to provide a new potential target for ISR prevention and treatment. METHODS A total of 60 CAD patients, who underwent PCI between December 2020 and July 2022 from the Department of Cardiovascular Medicine of Xiangya Hospital, Central South University, and re-examined coronary angiography (CAG) 1 year after the operation, were included. After admission, 27 patients were diagnosed with ISR and 33 patients were diagnosed with non-in-stent restenosis (non-ISR) according to the CAG. Clinical data were collected, and the plasma Rap1A level was determined by enzyme linked immunosorbent assay (ELISA). In cell experiments, an inflammatory injury model was established with TNF-α treatment (10 ng/mL, 24 h) in HUVECs. The mRNA and protein expression levels of Rap1A, interlukin-6 (IL-6), and vascular cell adhesion molecule-1 (VCAM-1) were measured by real-time reverse transcription PCR and Western blotting. Small interfering RNA (siRNA) was used to explore the role of Rap1A in regulating TNF-α-induced inflammation in HUVECs. RESULTS Compared with the non-ISR patients, a higher proportion of ISR patients had a history of smoking (P=0.005) and diabetes (P=0.028), and higher levels of glycosylated hemoglobin (HbA1c) (P=0.012), low-density lipoprotein cholesterol (LDL-c) (P=0.014), and hypersensitive C-reactive protein (hs-CRP) (P=0.027). The remaining projects did not show significant differences (all P>0.05). The plasma level of Rap1A in the ISR group was significantly higher than that in the non-ISR group [942.14 (873.28 to 1 133.81) μg/mL vs 886.93 (812.61 to 930.98) μg/mL; P=0.004]. Diabetes, LDL-c, and Rap1A were risk factors for ISR by univariate logistic regression analysis (all P<0.05). The mRNA and protein expression levels of inflammatory factors IL-6 and VCAM-1 were increased in HUVECs after 10 ng/mL TNF-α treatment for 24 h compared with the control group (all P<0.05), while the mRNA and protein levels of Rap1A were increased (both P<0.05). After inhibition of Rap1A in HUVECs, the mRNA and protein expression levels of IL-6 and VCAM-1 were significantly decreased (all P<0.05). CONCLUSIONS The plasma Rap1A level was significantly elevated in patients with ISR, suggesting that Rap1A may be a potential biomarker for predicting ISR. In the TNF-α- induced HUVECs inflammatory injury model, the expression level of Rap1A was increased. The level of TNF-α-induced endothelial cell inflammation was decreased after inhibition of Rap1A expression, suggesting that Rap1A may be a potential target for the treatment of endothelial cell inflammation in ISR.
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Affiliation(s)
- Haodong Gao
- Department of Cardiology, Xiangya Hospital, Central South University; National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Changsha 410008.
| | - Yuanyuan Kuang
- Department of Cardiology, Xiangya Hospital, Central South University; National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Changsha 410008
| | - Yubo Liu
- Department of Cardiology, Xiangya Hospital, Central South University; National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Changsha 410008
| | - Yinzhuang Zhang
- Department of Cardiology, First Hospital of Changsha, Changsha 410005, China
| | - Ping Wang
- Department of Cardiology, Xiangya Hospital, Central South University; National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Changsha 410008
| | - Qilin Ma
- Department of Cardiology, Xiangya Hospital, Central South University; National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Changsha 410008.
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Cao W, Huang S, Zhao H, Li Z, Zhu X, Liu L, Zhang R. Clinical and molecular genetic characteristics of 24 families of hereditary neuropathy with liability to pressure palsy and literature review. Zhong Nan Da Xue Xue Bao Yi Xue Ban 2023; 48:1572-1582. [PMID: 38432886 PMCID: PMC10929904 DOI: 10.11817/j.issn.1672-7347.2023.230116] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Subscribe] [Scholar Register] [Received: 03/22/2023] [Indexed: 03/05/2024]
Abstract
OBJECTIVES Hereditary neuropathy with liability to pressure palsy (HNPP) is a rare autosomal dominant peripheral neuropathy, usually caused by heterozygous deletion mutations in the peripheral myelin protein 22 (PMP22) gene. This study aims to investigate the clinical and molecular genetic characteristics of HNPP. METHODS HNPP patients in the Department of Neurology at Third Xiangya Hospital of Central South University from 2009 to 2023 were included in this study. The general clinical data, nervous electrophysiological and molecular genetic examination results were collected and analyzed. Molecular genetic examination was to screen for deletion of PMP22 gene using multiplex ligation-dependent probe amplification (MLPA) after extracting genomic DNA from peripheral blood; and if no PMP22 deletion mutation was detected, next-generation sequencing was used to screen for PMP22 point mutations. The related literatures of HNPP were reviewed, and the clinical and molecular genetic characteristics of HNPP patients were analyzed. RESULTS A total of 34 HNPP patients from 24 unrelated Chinese Han families were included in this study, including 25 males and 9 females. The average age at illness onset was 22.0 years. Sixty-two point five percent of the families had a positive family history. Among them, 30 patients had symptoms of peripheral nerve paralysis. Patients often presented with paroxysmal single limb weakness with (or) numbness (25/30), and some patients had paroxysmal unilateral recurrent laryngeal nerve (vagus nerve) paralysis (2/30). Physical examination revealed muscle weakness (23/29), hypoesthesia (9/29), weakened or absent ankle reflexes (20/29), distal limb muscle atrophy (8/29) and high arched feet (5/29). Most patients (26/30) could fully recover to normal after an acute attack. Thirty-one patients in our group underwent nervous electrophysiological examination, and showed multiple demyelinating peripheral neuropathies with both motor and sensory nerves involved. Most patients showed significantly prolonged distal motor latency (DML), mild to moderate nerve conduction velocity slowing, decreased amplitude of compound muscle action potential (CMAP) and sensory nerve action potential (SNAP), and sometimes with conduction block. Nerve motor conduction velocity was (48.5±5.5) m/s, and the CMAP amplitude was (8.4±5.1) mV. Nerve sensory conduction velocity was (37.4±10.5) m/s, and the SNAP amplitude was (14.4±15.2) μV. There were 24 families, 23 of whom had the classical PMP22 deletion, the last one had a heterozygous pathogenic variant in the PMP22 gene sequence (c.434delT). By reviewing clinical data and genetic testing results of reported 1 734 HNPP families, we found that heterozygous deletion mutation of PMP22 was the most common pathogenic mutation of HNPP (93.4%). Other patients were caused by PMP22 small mutations (4.0%), PMP22 heterozygous gross deletions (0.6%), and PMP22 complex rearrangements (0.1%). Thirty-eight sorts of HNPP-related PMP22 small mutations was reported, including missense mutations (10/38), nonsense mutations (4/38), base deletion mutations (13/38), base insertion mutations (3/38), and shear site mutations (8/38). HNPP patients most often presented with episodic painless single nerve palsy. Common peroneal nerve, ulnar nerve, and brachial plexus nerve were the most common involved nerves, accounting for about 75%. Only eighteen patients with cranial nerve involved was reported. CONCLUSIONS Heterozygous deletion mutation of PMP22 is the most common pathogenic mutation of HNPP. Patients is characterized by episodic and painless peripheral nerve paralysis, mainly involving common peroneal nerve, ulnar nerve, and other peripheral nerves. Nervous electrophysiological examination has high sensitivity and specificity for the diagnosis of HNPP, which is manifested by extensive demyelinating changes. For patients with suspected HNPP, nervous electrophysiological examination and PMP22-MLPA detection are preferred. Sanger sequencing or next generation sequencing can be considered to detect other mutations of PMP22.
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Affiliation(s)
- Wanqian Cao
- Department of Neurology, Third Xiangya Hospital, Central South University, Changsha 410013.
| | - Shunxiang Huang
- Department of Neurology, Third Xiangya Hospital, Central South University, Changsha 410013
| | - Huadong Zhao
- Department of Neurology, Third Xiangya Hospital, Central South University, Changsha 410013
| | - Zhongzheng Li
- Department of Neurology, Third Xiangya Hospital, Central South University, Changsha 410013
| | - Xiying Zhu
- Department of Neurology, Third Xiangya Hospital, Central South University, Changsha 410013
| | - Lei Liu
- Health Management Center, Third Xiangya Hospital, Central South University, Changsha 410013, China
| | - Ruxu Zhang
- Department of Neurology, Third Xiangya Hospital, Central South University, Changsha 410013.
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Guo Q, Yin Z, Cheng J, Zhang X, Wang R, Li W. Protective effect of heme chloride on hypoxia-induced tissue injury in mice. Zhong Nan Da Xue Xue Bao Yi Xue Ban 2023; 48:1437-1444. [PMID: 38432874 PMCID: PMC10929899 DOI: 10.11817/j.issn.1672-7347.2023.230204] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Subscribe] [Scholar Register] [Received: 05/16/2023] [Indexed: 03/05/2024]
Abstract
OBJECTIVES Heme chloride (Hemin) is an in vitro purified form of natural heme and an important raw material for anti-anemia and antitumor drugs. This study aims to analyze the protective effect of Hemin on tissue damage in low-pressure oxygen chamber simulated plateau hypoxic mice, and explore its role in anti-plateau hypoxia. METHODS Thirty male BALB/c mice were randomly divided into a blank group, a positive drug group (acetazolomide, 200 mg/kg), a Hemin low-dose group (15 mg/kg), a Hemin medium-dose group (30 mg/kg), and a Hemin high-dose group (60 mg/kg) with intraperitoneal injection. The anti-hypoxic activity of Hemin was explored by atmospheric closed hypoxia experiment and the optimal dose was screened. Thirty-six male BALB/c mice were randomly divided into a blank group, a hypoxia group, a positive drug group, and a Hemin high-dose group. The plasma inflammatory factor levels and oxidative stress indicators malondialdehyde (MDA), glutataione (GSH), and superoxide dismutase (SOD) levels of myocardium, brain, lung, and liver tissues were measured in different groups with hypoxia for 24 h. The degree of histopathological damage of mice was observed with HE staining. The degree of protection of Hemin against tissue hypoxia injury was detected with the hypoxia probe piperidazole. RESULTS Compared with the blank group, the survival time of mice in the positive drug group, the Hemin medium-dose group, and high-dose group was significantly extended (all P<0.05), with the highest prolongation rate in the Hemin high-dose group. Compared with the hypoxia group, mice in the Hemin high-dose group showed a significant increase in SOD level and GSH content of brain tissue, and a significant decrease in MDA content of lung tissue (all P<0.05). The results of HE staining and hypoxia probe showed that Hemin had a significant protective effect on the damage of liver, heart, brain and lung tissues of mice with hypoxia, and the most obvious effect on that of the brain tissue. CONCLUSIONS Hemin has an effect of improvement on oxidative stress and inflammatory response caused by hypoxia, and has obvious protective effect on tissue damage caused by hypoxia.
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Affiliation(s)
- Qianwen Guo
- Department of Pharmacy, 940th Hospital of Joint Logistics Support Force of Chinese People's Liberation Army; Key Laboratory of the Plateau Medicine, Lanzhou 730050.
- School of Pharmacy, Gansu University of Traditional Chinese Medicine, Lanzhou 730050, China.
| | - Ziyue Yin
- Department of Pharmacy, 940th Hospital of Joint Logistics Support Force of Chinese People's Liberation Army; Key Laboratory of the Plateau Medicine, Lanzhou 730050
- School of Pharmacy, Gansu University of Traditional Chinese Medicine, Lanzhou 730050, China
| | - Junfei Cheng
- Department of Pharmacy, 940th Hospital of Joint Logistics Support Force of Chinese People's Liberation Army; Key Laboratory of the Plateau Medicine, Lanzhou 730050
| | - Xiaojing Zhang
- Department of Pharmacy, 940th Hospital of Joint Logistics Support Force of Chinese People's Liberation Army; Key Laboratory of the Plateau Medicine, Lanzhou 730050
| | - Rong Wang
- Department of Pharmacy, 940th Hospital of Joint Logistics Support Force of Chinese People's Liberation Army; Key Laboratory of the Plateau Medicine, Lanzhou 730050
| | - Wenbin Li
- Department of Pharmacy, 940th Hospital of Joint Logistics Support Force of Chinese People's Liberation Army; Key Laboratory of the Plateau Medicine, Lanzhou 730050.
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Fan H, Liu J, Sun J, Wang J, Pang X, Shang W, Feng G, Li J. Clinical characteristics of 15 cases of renal transplantation with pre -exsiting donor -specific antibody. Zhong Nan Da Xue Xue Bao Yi Xue Ban 2023; 48:1583-1591. [PMID: 38432887 PMCID: PMC10929897 DOI: 10.11817/j.issn.1672-7347.2023.230144] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Subscribe] [Scholar Register] [Received: 04/13/2023] [Indexed: 03/05/2024]
Abstract
OBJECTIVES Currently, patients with pre-exsiting donor-specific antibody (DSA) are prone to antibody-mediated rejection (AMR) after surgery and are at a relatively high risk of postoperative complications and graft failure. The risk of postoperative complications and graft failure is relatively high. This study aims to discuss the clinical outcome of DSA-positive kidney transplantation and analyze the role and safety of preoperative pretreatment in DSA-positive kidney transplantation, providing single-center treatment experience for DSA-positive kidney transplantation. METHODS We retrospectively analyzed the clinical data of 15 DSA-positive kidney transplants in the Department of Renal Transplantation of First Affiliated Hospital of Zhengzhou University from August 2017 to July 2022. Eight cases were organ donation after citizen's death (DCD) kidney transplant recipients, of which 3 cases in the early stage were not treated with preoperative desensitisation therapy (DCD untreated group, n=3), and 5 recipients were treated with preoperative rituximab desensitisation (DCD preprocessing group, n=5). The remaining 7 cases were living related donors recipients (LRD) who received preoperative desensitisation treatment with rituximab and plasma exchange (LRD preprocessing group, n=7). We observed and recorded the incidence of complications with changes in renal function and DSA levels in the recipients and the survival of the recipients and transplanted kidneys at 1, 3 and 5 years, and to compare the differences in recovery and postoperative complications between 3 groups. RESULTS All 15 recipients were positive for preoperative panel reactive antibody (PRA) and DSA and were treated with methylprednisolone+rabbit anti-human thymocyte immunoglobulin induction before kidney transplantation. DCD untreated group all suffered from DSA level rebound, delayed renal graft function (DGF) and rejection reaction after surgery. After the combined treatment, DSA level was reduced and the graft renal function returned to normal. The DCD preprocessing group were all without antibody rebound, 1 recipient developed DGF and the renal function returned to normal after plasmapheresis, and the remaining 4 recipients recovered their renal function to normal within 2 weeks after the operation. In the LRD preprocessing group, 2 cases had antibody rebound and 1 case had rejection, but all of them recovered to normal after treatment, and DSA was maintained at a low level or even disappeared. The incidence of DGF and rejection in the DCD untreated group were significantly higher than that in the DCD preprocessing group and the LRD preprocessing group; and there were no significant difference in the incidence of postoperative haematuria, proteinuria, bacterial and fungal infections, and BK virus infection between the 3 groups (all P>0.05). A total of 11 of the 15 recipients were followed up for more than 1 year, 6 for more than 3 years, and 1 for more than 5 years, and the survival rates of both the recipients and the transplanted kidneys were 100%. CONCLUSIONS Effective preoperative pretreatment with desensitization therapy can effectively prevent antibody rebound in DSA-positive kidney transplantation and reduce perioperative complications.
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Affiliation(s)
- Hongzhao Fan
- Department of Renal Transplantation, First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052.
| | - Jia Liu
- Teaching and Research Department of Diagnostics, Henan Higher Institute of Medical Sciences, Zhengzhou 451100, China
| | - Jiajia Sun
- Department of Renal Transplantation, First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052
| | - Junxiang Wang
- Department of Renal Transplantation, First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052
| | - Xinlu Pang
- Department of Renal Transplantation, First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052
| | - Wenjun Shang
- Department of Renal Transplantation, First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052
| | - Guiwen Feng
- Department of Renal Transplantation, First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052
| | - Jinfeng Li
- Department of Renal Transplantation, First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052.
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Meng F, Wang L. Bidirectional mechanism of comorbidity of depression and insomnia based on synaptic plasticity. Zhong Nan Da Xue Xue Bao Yi Xue Ban 2023; 48:1518-1528. [PMID: 38432881 PMCID: PMC10929903 DOI: 10.11817/j.issn.1672-7347.2023.230082] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Subscribe] [Scholar Register] [Received: 03/06/2023] [Indexed: 03/05/2024]
Abstract
Insomnia is one of the most common accompanying symptoms of depression, with both sharing highly overlapping molecular pathways. The same pathological changes can trigger comorbidity of insomnia and depression, which further forms a vicious cycle with the involvement of more mechanisms and disease progression. Thus, understanding the potential interaction mechanisms between insomnia and depression is critical for clinical diagnosis and treatment. Comorbidity genetic factors, the hypothalamic-pituitary-adrenal axis, along with circadian rhythms of cortisol and the brain reward mechanism, are important ways in contributing to the comorbidity occurrence and development. However, owing to lack of pertinent investigational data, intricate molecular mechanisms necessitate further elaboration. Synaptic plasticity is a solid foundation for neural homeostasis. Pathological alterations of depression and insomnia may perturb the production and release of neurotransmitter, dendritic spine remodeling and elimination, which converges and reflects in aberrant synaptic dynamics. Hence, the introduction of synaptic plasticity research route and the construction of a comprehensive model of depression and insomnia comorbidity can provide new ideas for clinical depression insomnia comorbidity treatment plans.
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Affiliation(s)
- Fanhao Meng
- First Clinical Medical College, Heilongjiang University of Chinese Medicine, Harbin 150040.
| | - Long Wang
- First Affiliated Hospital, Heilongjiang University of Chinese Medicine, Harbin 150040, China.
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Ma J, Zheng Y, Sun F, Fan Y, Fan Y, Su X, Wang Z, Weng N, Li R. Research progress in the correlation between SREBP/PCSK9 pathway and lipid metabolism disorders induced by antipsychotics. Zhong Nan Da Xue Xue Bao Yi Xue Ban 2023; 48:1529-1538. [PMID: 38432882 PMCID: PMC10929898 DOI: 10.11817/j.issn.1672-7347.2023.230029] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Subscribe] [Scholar Register] [Indexed: 03/05/2024]
Abstract
Antipsychotic medications are commonly used to treat schizophrenia, but they can have negative effects on lipid metabolism, leading to an increased risk of cardiovascular diseases, reduced life expectancy, and difficulties with treatment adherence. The specific mechanisms by which antipsychotics disrupt lipid metabolism are not well understood. Sterol regulatory element-binding proteins (SREBPs) are important transcriptional factors that regulate lipid metabolism. Proprotein convertase subtilisin/kexin type 9 (PCSK9), a gene regulated by SREBPs, plays a critical role in controlling levels of low-density lipoprotein cholesterol (LDL-C) and has become a focus of research on lipid-lowering drugs. Recent studies have shown that antipsychotic drugs can affect lipid metabolism through the SREBP/PCSK9 pathway. A deep understanding of the mechanism for this pathway in antipsychotic drug-related metabolic abnormalities will promote the prevention of lipid metabolism disorders in patients with schizophrenia and the development and application of new drugs.
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Affiliation(s)
- Jiashu Ma
- School of Mental Health, Jining Medical University, Jining Shandong 272067.
| | - Yunshao Zheng
- Department of Psychiatry, Shandong Mental Health Center, Jinan 250014
| | - Fengxia Sun
- Department of Psychiatry, Shandong Mental Health Center, Jinan 250014
| | - Yunli Fan
- Department of Psychiatry, Shandong Mental Health Center, Jinan 250014
| | - Yunming Fan
- Department of Psychiatry, Shandong Mental Health Center, Jinan 250014
| | - Xianbiao Su
- Department of Psychiatry, Shandong Mental Health Center, Jinan 250014
| | - Zhongbao Wang
- Department of Psychiatry, Shandong Daizhuang Hospital, Jining Shandong 272051, China
| | - Ning Weng
- Department of Psychiatry, Shandong Mental Health Center, Jinan 250014
| | - Ranran Li
- Department of Psychiatry, Shandong Mental Health Center, Jinan 250014.
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Ning H, Li J, Chen X, Li M, Cao Z, Feng H. Challenges and suggestions for exergaming program in exercise among older adults. Zhong Nan Da Xue Xue Bao Yi Xue Ban 2023; 48:1621-1628. [PMID: 38432891 PMCID: PMC10929900 DOI: 10.11817/j.issn.1672-7347.2023.230149] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Subscribe] [Scholar Register] [Received: 04/13/2023] [Indexed: 03/05/2024]
Abstract
Engaging in physical activity and exercise is one of the important ways for health promotion. However, older adults are often physically inactive or have a sedentary lifestyle and have poor compliance with physical activity. Exergaming program with their unique advantages could make physical activity a more joyful experience and motivate older adults to participate in physical activity. Promoting older adults' health through engagement in exergaming programs is still in the early stage, and still faces many challenges. Analyzing the challenges and difficulties faced by exergaming program for older adults and exploring in-depth strategies to promote the implementation of exergaming program for older adults are of great significance for the design and implementation of sports games for older adults.
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Affiliation(s)
- Hongting Ning
- Xiangya School of Nursing, Central South University, Changsha 410013, China.
| | - Junxin Li
- Johns Hopkins University School of Nursing, Baltimore Maryland 21205, USA
| | - Xi Chen
- Xiangya School of Nursing, Central South University, Changsha 410013, China
| | - Min Li
- Department of Nursing, Changsha County Xingsha Hospital, Changsha 410119, China
| | - Zeng Cao
- Department of Rehabilitation Medicine, Xiangya Hospital, Central South University, Changsha 410008, China
| | - Hui Feng
- Xiangya School of Nursing, Central South University, Changsha 410013, China.
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Zhang S, Huang Y, Pi S, Chen H, Ye F, Wu C, Li L, Ye Q, Lin Y, Su Z. Autophagy-amplifying nanoparticles evoke immunogenic cell death combined with anti-PD-1/PD-L1 for residual tumors immunotherapy after RFA. J Nanobiotechnology 2023; 21:360. [PMID: 37789342 PMCID: PMC10548684 DOI: 10.1186/s12951-023-02067-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2023] [Accepted: 08/16/2023] [Indexed: 10/05/2023] Open
Abstract
Incomplete radiofrequency ablation (IRFA) triggers mild protective autophagy in residual tumor cells and results in an immunosuppressive microenvironment. This accelerates the recurrence of residual tumors and causes resistance to anti-PD-1/PDL1 therapy, which bringing a great clinical challenge in residual tumors immunotherapy. Mild autophagy activation can promote cancer cell survival while further amplification of autophagy contributes to immunogenic cell death (ICD). To this regard, we constructed active targeting zeolitic imidazolate framework-8 (ZIF-8) nanoparticles (NPs) loaded with STF62247 or both STF62247 and BMS202, namely STF62247@ZIF-8/PEG-FA (SZP) or STF62247-BMS202@ZIF-8/PEG-FA (SBZP) NPs. We found that SZP NPs inhibited proliferation and stimulated apoptosis of residual tumor cells exposed to sublethal heat stress in an autophagy-dependent manner. Further results discovered that SZP NPs could amplify autophagy in residual tumor cells and evoke their ICD, which dramatically boosted the maturation of dendritic cells (DCs). Through vaccination experiments, we found for the first time that vaccination with heat + SZP treatment could efficiently suppress the growth of new tumors and establish long-term immunological memory. Furthermore, SBZP NPs could remarkably promote the ICD of residual tumor cells, obviously activate the anti-tumor immune microenvironment, and significantly inhibit the growth of residual tumors. Thus, amplified autophagy coupled with anti-PD-1/PDL1 therapy is potentially a novel strategy for treating residual tumors after IRFA.
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Affiliation(s)
- Shushan Zhang
- Department of Ultrasound, The Fifth Affiliated Hospital of Sun Yat-Sen University, Meihua East Road, No. 52, Zhuhai, 519000, Guangdong Province, China
| | - Yongquan Huang
- Department of Ultrasound, The Fifth Affiliated Hospital of Sun Yat-Sen University, Meihua East Road, No. 52, Zhuhai, 519000, Guangdong Province, China
| | - Songying Pi
- Department of Ultrasound, The Fifth Affiliated Hospital of Sun Yat-Sen University, Meihua East Road, No. 52, Zhuhai, 519000, Guangdong Province, China
| | - Hui Chen
- Department of Ultrasound, The Fifth Affiliated Hospital of Sun Yat-Sen University, Meihua East Road, No. 52, Zhuhai, 519000, Guangdong Province, China
| | - Feile Ye
- Department of Ultrasound, The Fifth Affiliated Hospital of Sun Yat-Sen University, Meihua East Road, No. 52, Zhuhai, 519000, Guangdong Province, China
| | - Chaoqun Wu
- Department of Ultrasound, The Fifth Affiliated Hospital of Sun Yat-Sen University, Meihua East Road, No. 52, Zhuhai, 519000, Guangdong Province, China
| | - Liujun Li
- Department of Ultrasound, The Fifth Affiliated Hospital of Sun Yat-Sen University, Meihua East Road, No. 52, Zhuhai, 519000, Guangdong Province, China
| | - Qing Ye
- Department of Ultrasound, The Fifth Affiliated Hospital of Sun Yat-Sen University, Meihua East Road, No. 52, Zhuhai, 519000, Guangdong Province, China
| | - Yuhong Lin
- Department of Ultrasound, The Fifth Affiliated Hospital of Sun Yat-Sen University, Meihua East Road, No. 52, Zhuhai, 519000, Guangdong Province, China.
| | - Zhongzhen Su
- Department of Ultrasound, The Fifth Affiliated Hospital of Sun Yat-Sen University, Meihua East Road, No. 52, Zhuhai, 519000, Guangdong Province, China.
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Yang P, Yu F, Yao Z, Ding X, Xu H, Zhang J. CD24 is a novel target of chimeric antigen receptor T cells for the treatment of triple negative breast cancer. Cancer Immunol Immunother 2023; 72:3191-3202. [PMID: 37418008 DOI: 10.1007/s00262-023-03491-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2022] [Accepted: 06/28/2023] [Indexed: 07/08/2023]
Abstract
Triple negative breast cancer (TNBC) is a subtype of breast cancer with the highest degree of malignancy and the worst prognosis. The application of immunotherapy for TNBC is limited. This study was to verify the potential application of chimeric antigen receptor-T cells (CAR-T cells) targeting CD24 named as 24BBz in treatment of TNBC. 24BBz was constructed by lentivirus infection and then was co-culture with breast cancer cell lines to evaluate the activation, proliferation and cytotoxicity of engineered T cells. The anti-tumor activity of 24BBz was verified in the subcutaneous xenograft model of nude mice. We found that CD24 gene was significantly up-regulated in breast cancer (BRCA), especially in TNBC. 24BBz showed antigen-specific activation and dose-dependent cytotoxicity against CD24-positive BRCA tumor cells in vitro. Furthermore, 24BBz showed significant anti-tumor effect in CD24-positive TNBC xenografts and T cells infiltration in tumor tissues, while some T cells exhibited exhaustion. No pathological damage of major organs was found during the treatment. This study proved that CD24-specific CAR-T cells have potent anti-tumor activity and potential application value in treatment of TNBC.
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Affiliation(s)
- Peiwei Yang
- The Engineering Research Center of Synthetic Polypeptide Drug Discovery and Evaluation, China Pharmaceutical University, Nanjing, 210009, Jiangsu Province, People's Republic of China
- State Key Laboratory of Natural Medicines, Ministry of Education, China Pharmaceutical University, 639 Longmian Avenue, Jiangning District, Nanjing City, 210009, Jiangsu Province, People's Republic of China
| | - Fan Yu
- The Engineering Research Center of Synthetic Polypeptide Drug Discovery and Evaluation, China Pharmaceutical University, Nanjing, 210009, Jiangsu Province, People's Republic of China
- Nanjing Anji Biological Technology Co., LTD, Nanjing, 210033, People's Republic of China
| | - Zheng Yao
- The Engineering Research Center of Synthetic Polypeptide Drug Discovery and Evaluation, China Pharmaceutical University, Nanjing, 210009, Jiangsu Province, People's Republic of China
- State Key Laboratory of Natural Medicines, Ministry of Education, China Pharmaceutical University, 639 Longmian Avenue, Jiangning District, Nanjing City, 210009, Jiangsu Province, People's Republic of China
| | - Xu Ding
- Department of Oral and Maxillofacial Surgery, Affiliated Hospital of Stomatology, Nanjing Medical University, Nanjing, 210029, People's Republic of China
| | - Hanmei Xu
- The Engineering Research Center of Synthetic Polypeptide Drug Discovery and Evaluation, China Pharmaceutical University, Nanjing, 210009, Jiangsu Province, People's Republic of China.
- State Key Laboratory of Natural Medicines, Ministry of Education, China Pharmaceutical University, 639 Longmian Avenue, Jiangning District, Nanjing City, 210009, Jiangsu Province, People's Republic of China.
| | - Juan Zhang
- Antibody Engineering Laboratory, Department of Molecular Biology, School of Life Science and Technology, China Pharmaceutical University, Nanjing, 210009, People's Republic of China.
- State Key Laboratory of Natural Medicines, Ministry of Education, China Pharmaceutical University, 639 Longmian Avenue, Jiangning District, Nanjing City, 210009, Jiangsu Province, People's Republic of China.
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Xiaokereti J, Guo Y, Liang X, Sun H, Li K, Zhang L, Tang B. Renal denervation alleviates chronic obstructive sleep apnea-induced atrial fibrillation via inhibition of atrial fibrosis and sympathetic hyperactivity. Sleep Breath 2023; 27:1805-1818. [PMID: 36811692 DOI: 10.1007/s11325-023-02784-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2022] [Revised: 01/19/2023] [Accepted: 01/23/2023] [Indexed: 02/24/2023]
Abstract
OBJECTIVE Previous studies have reported that renal denervation (RDN) prevents the occurrence of atrial fibrillation (AF) related to obstructive sleep apnea (OSA). However, the effect of RDN on chronic OSA (COSA)-induced AF is still unclear. METHODS Healthy beagle dogs were randomized into the OSA group (sham RDN + OSA), OSA-RDN group (RDN + OSA), and CON group (sham RDN + sham OSA). The COSA model was built via repeated apnea and ventilation rounds for 4 h each day lasting 12 weeks, and RDN was employed after 8 weeks of modeling. All dogs were implanted Reveal LINQ™ to detect spontaneous AF and AF burden. Circulating levels of norepinephrine, angiotensin II, and interleukin-6 were determined at baseline and end of the study. In addition, measurements of the left stellate ganglion, AF inducibility, and effective refractory period were conducted. The bilateral renal artery and cortex, left stellate ganglion, and left atrial tissues were collected for molecular analysis. RESULTS Of 18 beagles, 6 were randomized to each of the groups described above. RDN remarkably attenuated ERP prolongation and AF episodes and duration. RDN markedly suppressed the LSG hyperactivity and atrial sympathetic innervation, decreased the serum concentrations of Ang II and IL-6, further inhibited fibroblast-to-myofibroblast transformation via the TGF-β1/Smad2/3/α-SMA pathway, and reduced the expression of MMP-9, thus decreasing OSA-induced AF. CONCLUSIONS RDN may reduce AF by inhibiting sympathetic hyperactivity and AF in a COSA model.
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Affiliation(s)
- Jiasuoer Xiaokereti
- Xinjiang Key Laboratory of Cardiac Electrophysiology and Cardiac Remodeling, The First Affiliated Hospital of Xinjiang Medical University, No.137, South Liyushan Road, Xinshi Zone, Urumqi, Xinjiang, China
- Cardiac Pacing and Electrophysiological Department, The First Affiliated Hospital of Xinjiang Medical University, No.137, South Liyushan Road, Xinshi Zone, Urumqi, Xinjiang, China
| | - Yankai Guo
- Xinjiang Key Laboratory of Cardiac Electrophysiology and Cardiac Remodeling, The First Affiliated Hospital of Xinjiang Medical University, No.137, South Liyushan Road, Xinshi Zone, Urumqi, Xinjiang, China
- Cardiac Pacing and Electrophysiological Department, The First Affiliated Hospital of Xinjiang Medical University, No.137, South Liyushan Road, Xinshi Zone, Urumqi, Xinjiang, China
| | - Xiaoyan Liang
- Xinjiang Key Laboratory of Cardiac Electrophysiology and Cardiac Remodeling, The First Affiliated Hospital of Xinjiang Medical University, No.137, South Liyushan Road, Xinshi Zone, Urumqi, Xinjiang, China
- Cardiac Pacing and Electrophysiological Department, The First Affiliated Hospital of Xinjiang Medical University, No.137, South Liyushan Road, Xinshi Zone, Urumqi, Xinjiang, China
| | - Huaxin Sun
- Xinjiang Key Laboratory of Cardiac Electrophysiology and Cardiac Remodeling, The First Affiliated Hospital of Xinjiang Medical University, No.137, South Liyushan Road, Xinshi Zone, Urumqi, Xinjiang, China
- Cardiac Pacing and Electrophysiological Department, The First Affiliated Hospital of Xinjiang Medical University, No.137, South Liyushan Road, Xinshi Zone, Urumqi, Xinjiang, China
| | - Kai Li
- Xinjiang Key Laboratory of Cardiac Electrophysiology and Cardiac Remodeling, The First Affiliated Hospital of Xinjiang Medical University, No.137, South Liyushan Road, Xinshi Zone, Urumqi, Xinjiang, China
- Cardiac Pacing and Electrophysiological Department, The First Affiliated Hospital of Xinjiang Medical University, No.137, South Liyushan Road, Xinshi Zone, Urumqi, Xinjiang, China
| | - Ling Zhang
- Xinjiang Key Laboratory of Cardiac Electrophysiology and Cardiac Remodeling, The First Affiliated Hospital of Xinjiang Medical University, No.137, South Liyushan Road, Xinshi Zone, Urumqi, Xinjiang, China.
| | - Baopeng Tang
- Xinjiang Key Laboratory of Cardiac Electrophysiology and Cardiac Remodeling, The First Affiliated Hospital of Xinjiang Medical University, No.137, South Liyushan Road, Xinshi Zone, Urumqi, Xinjiang, China.
- Cardiac Pacing and Electrophysiological Department, The First Affiliated Hospital of Xinjiang Medical University, No.137, South Liyushan Road, Xinshi Zone, Urumqi, Xinjiang, China.
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Pan M, Liu Y, Sang T, Xie J, Lin H, Wei J, Shao S, Zheng Y, Zhang J. Enhanced antitumor and anti-metastasis by VEGFR2-targeted doxorubicin immunoliposome synergy with NK cell activation. Invest New Drugs 2023; 41:664-676. [PMID: 37542666 DOI: 10.1007/s10637-023-01372-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2022] [Accepted: 05/08/2023] [Indexed: 08/07/2023]
Abstract
Liposomal doxorubicin exhibits stronger drug accumulation at the tumor site due to the Enhanced Permeability and Retention (EPR) effect. However, the prognosis for the patient is poor due to this drug's lack of targeting and tumor metastasis during treatment. Vascular epidermal growth factor receptor (VEGFR2) plays an important role in angiogenesis and cancer metastasis. To enhance antitumor efficacy of PEGylated liposomal doxorubicin, we constructed a VEGFR2-targeted and doxorubicin-loaded immunoliposome (Lipo-DOX-C00) by conjugating a VEGFR2-specific, single chain antibody fragment to DSPE-PEG2000-MAL, and then we inserted the antibody-conjugated polymer into liposomal doxorubicin (Lipo-DOX). The immunoliposome was formed uniformly with high affinity for VEGFR2. In vitro, Lipo-DOX-C00 enhanced doxorubicin internalization into LLC and 4T1 cells compared with non-conjugated, liposomal doxorubicin. In vivo, Lipo-DOX-C00 delivered DOX to tumor tissues effectively, which exhibited an improved antitumor and anti-metastasis efficacy in both LLC subcutaneous tumor models and 4T1 tumor models. In addition, the combined therapy of a VEGFR2-MICA bispecific antibody (JZC01) and Lipo-DOX-C00 achieved enhanced inhibition of cancer growth and metastasis due to activation of the immune system. Our study provides a promising approach to clinical application of liposomal doxorubicin.
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Affiliation(s)
- Mingzhu Pan
- Antibody Engineering Laboratory, School of Life Science & Technology, China Pharmaceutical University, Nanjing, 211198, China
| | - Yali Liu
- Antibody Engineering Laboratory, School of Life Science & Technology, China Pharmaceutical University, Nanjing, 211198, China
| | - Tian Sang
- Antibody Engineering Laboratory, School of Life Science & Technology, China Pharmaceutical University, Nanjing, 211198, China
| | - Jiajun Xie
- Antibody Engineering Laboratory, School of Life Science & Technology, China Pharmaceutical University, Nanjing, 211198, China
| | - Huishu Lin
- Antibody Engineering Laboratory, School of Life Science & Technology, China Pharmaceutical University, Nanjing, 211198, China
| | - Jianpeng Wei
- Antibody Engineering Laboratory, School of Life Science & Technology, China Pharmaceutical University, Nanjing, 211198, China
| | - Shuai Shao
- Antibody Engineering Laboratory, School of Life Science & Technology, China Pharmaceutical University, Nanjing, 211198, China
| | - Yanying Zheng
- Department of Pathology, Jiangsu Province Hospital of Chinese Medicine, Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing, 210029, China.
| | - Juan Zhang
- Antibody Engineering Laboratory, School of Life Science & Technology, China Pharmaceutical University, Nanjing, 211198, China.
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Zhang C, Xiao T, He J, Lu B, Li X, Zhai J, Fan X. Room-Temperature Synthesis of a COFs Membrane Via LBL Self-Assembly Strategy for Energy Harvesting. Small 2023; 19:e2301512. [PMID: 37154221 DOI: 10.1002/smll.202301512] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/20/2023] [Revised: 04/02/2023] [Indexed: 05/10/2023]
Abstract
The covalent organic frameworks (COFs) membrane with ordered and confined one-dimensional channel has been considered as a promising material to harvest the salinity gradient energy from the seawater and river water. However, the application of the COFs in the field of energy conversion still faces the challenges in membrane preparation. Herein, energy harvesting is achieved by taking advantage of a COFs membrane where TpDB-HPAN is synthesized via layer-by-layer self-assembly strategy at room temperature. The carboxy-rich TpDB COFs can be expediently assembled onto the substrate with an environmental-friendly method. The increased open-circuit voltage (Voc ) endows TpDB-HPAN membrane with a remarkable energy harvesting performance. More importantly, the application perspective is also illuminated by the cascade system. With the advantages of green synthesis, the TpDB-HPAN membrane can be considered as a low-cost and promising candidate for energy conversion.
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Affiliation(s)
- Caili Zhang
- Key Laboratory of Bio-Inspired Smart Interfacial Science and Technology of Ministry of Education, School of Chemistry, Beihang University, Beijing, 100191, P. R. China
| | - Tianliang Xiao
- School of Energy and Power Engineering, Beihang University, Beijing, 100191, P. R. China
| | - Jianwei He
- Key Laboratory of Bio-Inspired Smart Interfacial Science and Technology of Ministry of Education, School of Chemistry, Beihang University, Beijing, 100191, P. R. China
| | - Bingxin Lu
- Key Laboratory of Bio-Inspired Smart Interfacial Science and Technology of Ministry of Education, School of Chemistry, Beihang University, Beijing, 100191, P. R. China
| | - Xuejiang Li
- Key Laboratory of Bio-Inspired Smart Interfacial Science and Technology of Ministry of Education, School of Chemistry, Beihang University, Beijing, 100191, P. R. China
| | - Jin Zhai
- Key Laboratory of Bio-Inspired Smart Interfacial Science and Technology of Ministry of Education, School of Chemistry, Beihang University, Beijing, 100191, P. R. China
| | - Xia Fan
- Key Laboratory of Bio-Inspired Smart Interfacial Science and Technology of Ministry of Education, School of Chemistry, Beihang University, Beijing, 100191, P. R. China
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Li JK, Fu NQ, Wang B, Jiang Y, Li SY, Niu RL, Wang ZL. Conventional ultrasound combined with contrast-enhanced ultrasound: could it be helpful for the diagnosis of thoracic wall recurrence after mastectomy? Eur Radiol 2023; 33:6482-6491. [PMID: 37074423 DOI: 10.1007/s00330-023-09594-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2022] [Revised: 02/14/2023] [Accepted: 02/21/2023] [Indexed: 04/20/2023]
Abstract
OBJECTIVES To develop a predictive model using conventional ultrasound combined with CEUS to identify thoracic wall recurrence after mastectomy. METHODS A total of 162 women with pathologically confirmed thoracic wall lesions (benign 79, malignant 83; median size 1.9 cm, ranging 0.3-8.0 cm) underwent a mastectomy and were checked by both conventional ultrasound and CEUS and were retrospectively included. Logistic regression models of B-mode ultrasound (US) and color Doppler flow imaging (CDFI) with or without CEUS were established to assess the thoracic wall recurrence after mastectomy. The established models were validated by bootstrap resampling. The models were evaluated using calibration curve. The clinical benefit of models were assessed using decision curve analysis. RESULTS The area under the receiver characteristic was 0.823 (95% CI: 0.76, 0.88) for model using US alone, 0.898 (95% CI: 0.84, 0.94) for model using US combined with CDFI, and 0.959 (95% CI: 0.92, 0.98) for model using US combined with both CDFI and CEUS. The diagnostic performance of the US combined with CDFI was significantly higher than that of the US alone (0.823 vs 0.898, p = 0.002) but significantly lower than that of the US combined with both CDFI and CEUS (0.959 vs 0.898, p < 0.001). Moreover, the unnecessary biopsy rate of the US combined with both CDFI and CEUS was significantly lower than that of the US combined with CDFI (p = 0.037). CONCLUSIONS Compared to B-mode ultrasound and CDFI, CEUS improves the diagnostic performance to evaluate thoracic wall recurrence after mastectomy. KEY POINTS • CUES is an effective supplementary method for US in the diagnosis of thoracic wall recurrence after mastectomy. • CEUS combined with both US and CDFI can significantly improve the accuracy of diagnosis of thoracic wall recurrence after mastectomy. • CEUS combined with both US and CDFI can reduce the rate of unnecessary biopsy of thoracic wall lesions after mastectomy.
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Affiliation(s)
- Jun Kang Li
- Department of Ultrasound, The First Medical Center, Chinese PLA General Hospital, 28 Fuxing Road, Beijing, 100853, China
- Department of Ultrasound, Chinese PLA 63820 Hospital, Mianyang, Sichuan, China
| | - Nai Qin Fu
- Department of Ultrasound, The First Medical Center, Chinese PLA General Hospital, 28 Fuxing Road, Beijing, 100853, China
| | - Bo Wang
- Department of Ultrasound, The First Medical Center, Chinese PLA General Hospital, 28 Fuxing Road, Beijing, 100853, China
| | - Ying Jiang
- Department of Ultrasound, The First Medical Center, Chinese PLA General Hospital, 28 Fuxing Road, Beijing, 100853, China
| | - Shi Yu Li
- Department of Ultrasound, The First Medical Center, Chinese PLA General Hospital, 28 Fuxing Road, Beijing, 100853, China
| | - Rui Lan Niu
- Department of Ultrasound, The First Medical Center, Chinese PLA General Hospital, 28 Fuxing Road, Beijing, 100853, China
| | - Zhi Li Wang
- Department of Ultrasound, The First Medical Center, Chinese PLA General Hospital, 28 Fuxing Road, Beijing, 100853, China.
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Wang Q, Li S, Wang H, Zhang M. Configuration of elastin fibers in the intra- and extra-capsule ligaments of the elderly cricoarytenoid joint. Eur Arch Otorhinolaryngol 2023; 280:4149-4153. [PMID: 37208491 PMCID: PMC10382399 DOI: 10.1007/s00405-023-08003-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2023] [Accepted: 04/26/2023] [Indexed: 05/21/2023]
Abstract
PURPOSE To define the localization and configuration of the elastic fibers of the cricoarytenoid ligament (CAL) and their relationship with the cricoarytenoid joint (CAJ) capsule. METHODS Twenty-four CAJs from twelve cadavers were analyzed using Verhoeff-Van Gieson staining, and immunohistochemistry methods. This is a prospective study. RESULTS The CAL was classified into two parts: an extra-capsular anterior-CAL and an intra-capsular posterior-CAL. The both parts contained rich elastic fibers. The elastic fibers of the anterior-CAL were orientated in both anterior-posterior and superior-inferior directions and under a relaxation status, whereas the elastic fibers of the posterior-CAL were arranged in a lateral-medial direction and under a taut status. CONCLUSIONS This study defined the fine configuration of the CAL, particularly its elastic fibers, which may help us to better understand the biomechanics of the CAJ motions, and differential diagnosis of CAJ disorders. The results of the study re-confirm that the P-CAL is the key posterior-lateral passive force to limit the mobility of the muscular process of the arytenoid cartilage and stabilize the CAJ, whereas the A-CAL may protect the CAJ from an over superior-lateral-posterior motion. LEVEL OF EVIDENCE H/A.
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Affiliation(s)
- Qin Wang
- Department of Otolaryngology, The First Affiliated Hospital, Anhui Medical University, Hefei, China
| | - Sheng Li
- Department of Anatomy, The Zhongshan School of Medicine, Sun Yat-Sen University, Guangzhou, China
- The Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, 510120, China
| | - Huaqiao Wang
- Department of Anatomy, The Zhongshan School of Medicine, Sun Yat-Sen University, Guangzhou, China
| | - Ming Zhang
- Department of Anatomy, University of Otago, Dunedin, New Zealand.
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Luo Z, Li X, Wang L, Shu C. Impact of the transforming growth factor-β pathway on vascular restenosis and its mechanism. Zhong Nan Da Xue Xue Bao Yi Xue Ban 2023; 48:1252-1259. [PMID: 37875366 PMCID: PMC10930841 DOI: 10.11817/j.issn.1672-7347.2023.230064] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Subscribe] [Scholar Register] [Received: 02/24/2023] [Indexed: 10/26/2023]
Abstract
As a crucial regulatory molecule in the context of vascular stenosis, transforming growth factor-β (TGF-β), plays a pivotal role in its initiation and progression. TGF-β, a member of the TGF-β superfamily, can bind to the TGF-β receptor and transduce extracellular to intracellular signals through canonical Smad dependent or noncanonical signaling pathways to regulate cell growth, proliferation, differentiation, and apoptosis. Restenosis remains one of the most challenging problems in cardiac, cerebral, and peripheral vascular disease worldwide. The mechanisms for occurrence and development of restenosis are diverse and complex. The TGF-β pathway exhibits diversity across various cell types. Hence, clarifying the specific roles of TGF-β within different cell types and its precise impact on vascular stenosis provides strategies for future research in the field of stenosis.
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Affiliation(s)
- Zhongchen Luo
- Institute of Vascular Diseases, Central South University, Changsha 410011.
- Department of Vascular Surgery, Vascular Center, Second Xiangya Hospital, Central South University, Changsha 410011.
| | - Xin Li
- Institute of Vascular Diseases, Central South University, Changsha 410011
- Department of Vascular Surgery, Vascular Center, Second Xiangya Hospital, Central South University, Changsha 410011
| | - Lunchang Wang
- Institute of Vascular Diseases, Central South University, Changsha 410011
- Department of Vascular Surgery, Vascular Center, Second Xiangya Hospital, Central South University, Changsha 410011
| | - Chang Shu
- Institute of Vascular Diseases, Central South University, Changsha 410011.
- Department of Vascular Surgery, Vascular Center, Second Xiangya Hospital, Central South University, Changsha 410011.
- Center of Vascular Surgery, Fuwai Hospital, Chinese Academy of Medical Science, Beijing 100037, China.
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Lin D, Liu X, Li Q, Qin J, Xiong Z, Wu X. Association between gut microbiome and intracerebral hemorrhage based on genome-wide association study data. Zhong Nan Da Xue Xue Bao Yi Xue Ban 2023; 48:1176-1184. [PMID: 37875357 PMCID: PMC10930854 DOI: 10.11817/j.issn.1672-7347.2023.230107] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Subscribe] [Scholar Register] [Received: 03/15/2023] [Indexed: 10/26/2023]
Abstract
OBJECTIVES Intracerebral hemorrhage (ICH) has the highest mortality and disability rates among various subtypes of stroke. Previous studies have shown that the gut microbiome (GM) is closely related to the risk factors and pathological basis of ICH. This study aims to explore the causal effect of GM on ICH and the potential mechanisms. METHODS Genome wide association study (GWAS) data on GM and ICH were obtained from Microbiome Genome and International Stroke Genetics Consortium. Based on the GWAS data, we first performed Mendelian randomization (MR) analysis to evaluate the causal association between GM and ICH. Then, a conditional false discovery rate (cFDR) method was conducted to identify the pleiotropic variants. RESULTS MR analysis showed that Pasteurellales, Pasteurellaceae, and Haemophilus were negatively correlated with the risk of ICH, whileVerrucomicrobiae, Verrucomicrobiales, Verrucomicrobiaceae, Akkermansia, Holdemanella, and LachnospiraceaeUCG010 were positively correlated with ICH. By applying the cFDR method, 3 pleiotropic loci (rs331083, rs4315115, and rs12553325) were found to be associated with both GM and ICH. CONCLUSIONS There is a causal association and pleiotropic variants between GM and ICH.
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Affiliation(s)
- Dihui Lin
- Department of Public Health and Medical Technology, College of Medicine, Jishou University, Jishou Hunan 416000.
| | - Xinpeng Liu
- Department of Public Health and Medical Technology, College of Medicine, Jishou University, Jishou Hunan 416000
| | - Qi Li
- Xiangxi Tujia and Miao Autonomous Prefecture Center for Disease Prevention and Control, Jishou Hunan 416000
| | - Jiabi Qin
- Department of Epidemic and Health Statistics, Xiangya School of Public Health, Central South University, Changsha 410006, China
| | - Zhendong Xiong
- Department of Public Health and Medical Technology, College of Medicine, Jishou University, Jishou Hunan 416000
| | - Xinrui Wu
- Department of Public Health and Medical Technology, College of Medicine, Jishou University, Jishou Hunan 416000.
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Zhao H, Ding X, Chu X, Zhang H, Wang X, Zhang X, Liu H, Zhang X, Yin Z, Li Y, Ding X. Plant immune inducer ZNC promotes rutin accumulation and enhances resistance to Botrytis cinerea in tomato. Stress Biol 2023; 3:36. [PMID: 37676331 PMCID: PMC10444710 DOI: 10.1007/s44154-023-00106-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/25/2022] [Accepted: 07/09/2023] [Indexed: 09/08/2023]
Abstract
Gray mold is a destructive disease caused by Botrytis cinerea, a pervasive plant pathogen, which poses a threat to both tomato growth and postharvest storage. The utilization of induced resistance presents a potential strategy for combating plant pathogenic attacks. ZNC (zhinengcong), an extract derived from the endophytic fungus Paecilomyces variotii, has been discovered to play a vital role in preventing diverse forms of bacterial infections. Nevertheless, the precise mechanism behind its ability to enhance tomato resistance to fungi remains unclear. In this study, we found that the exogenous spraying of ZNC could significantly improve the resistance of tomato plants to B. cinerea. The results of both the metabolomic analysis and high-performance liquid chromatography (HPLC) demonstrated that tomato plants responded to ZNC treatment by accumulating high levels of rutin. Additional transcriptome analysis uncovered that rutin enhances tomato resistance possible by initiating the generation of reactive oxygen species (ROS) and phosphorylation of mitogen-activated protein kinases (MPKs) related genes expression during the initial phase of invasion by B. cinerea. In addition, we also found that rutin might activate plant immunity by eliciting ethylene (ET) and jasmonic acid (JA)-mediated pathways. Therefore, plant immune inducer ZNC and rutin has bright application prospects and high utilization value to control gray mold.
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Affiliation(s)
- Haipeng Zhao
- State Key Laboratory of Crop Biology, Shandong Provincial Key Laboratory for Biology of Vegetable Diseases and Insect Pests, College of Plant Protection, Shandong Agricultural University, Taian, 271018, Shandong, P. R. China
| | - Xiangyu Ding
- State Key Laboratory of Crop Biology, Shandong Provincial Key Laboratory for Biology of Vegetable Diseases and Insect Pests, College of Plant Protection, Shandong Agricultural University, Taian, 271018, Shandong, P. R. China
| | - Xiaomeng Chu
- State Key Laboratory of Crop Biology, Shandong Provincial Key Laboratory for Biology of Vegetable Diseases and Insect Pests, College of Plant Protection, Shandong Agricultural University, Taian, 271018, Shandong, P. R. China
| | - Haimiao Zhang
- State Key Laboratory of Crop Biology, Shandong Provincial Key Laboratory for Biology of Vegetable Diseases and Insect Pests, College of Plant Protection, Shandong Agricultural University, Taian, 271018, Shandong, P. R. China
| | - Xinyu Wang
- State Key Laboratory of Crop Biology, Shandong Provincial Key Laboratory for Biology of Vegetable Diseases and Insect Pests, College of Plant Protection, Shandong Agricultural University, Taian, 271018, Shandong, P. R. China
| | - Xinwen Zhang
- State Key Laboratory of Crop Biology, Shandong Provincial Key Laboratory for Biology of Vegetable Diseases and Insect Pests, College of Plant Protection, Shandong Agricultural University, Taian, 271018, Shandong, P. R. China
| | - Haoqi Liu
- State Key Laboratory of Crop Biology, Shandong Provincial Key Laboratory for Biology of Vegetable Diseases and Insect Pests, College of Plant Protection, Shandong Agricultural University, Taian, 271018, Shandong, P. R. China
| | - Xiaoying Zhang
- Shandong Pengbo Biotechnology Co., Ltd., Taian, 271000, China
| | - Ziyi Yin
- State Key Laboratory of Crop Biology, Shandong Provincial Key Laboratory for Biology of Vegetable Diseases and Insect Pests, College of Plant Protection, Shandong Agricultural University, Taian, 271018, Shandong, P. R. China.
| | - Yang Li
- State Key Laboratory of Crop Biology, Shandong Provincial Key Laboratory for Biology of Vegetable Diseases and Insect Pests, College of Plant Protection, Shandong Agricultural University, Taian, 271018, Shandong, P. R. China.
| | - Xinhua Ding
- State Key Laboratory of Crop Biology, Shandong Provincial Key Laboratory for Biology of Vegetable Diseases and Insect Pests, College of Plant Protection, Shandong Agricultural University, Taian, 271018, Shandong, P. R. China.
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Yan S, Wang Z, Li T, Chen Z, Du X, Liu Y, Chen D, Sun K, Liu R, Bai B, He X, Liu K, Wang S. In Situ Characterization of 17-4PH Stainless Steel by Small-Angle Neutron Scattering. Materials (Basel) 2023; 16:5583. [PMID: 37629874 PMCID: PMC10456363 DOI: 10.3390/ma16165583] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/26/2023] [Revised: 07/15/2023] [Accepted: 07/25/2023] [Indexed: 08/27/2023]
Abstract
17-4PH martensitic steel is usually used as valve stems in nuclear power plants and it suffers from thermal aging embrittlement due to long-time service in a high-temperature and high-pressure environment. Here, we characterized the evolution of microstructures at the nano-scale in 17-4PH steel by in situ small-angle neutron scattering (SANS) with a thermo-mechanically coupled loading device. The device could set different temperatures and tensile so that an in situ SANS experiment could dynamically characterize the process of nanoscale structural changes. The results showed that with increasing thermal aging time, the ε-Cu phase precipitates and grows as the temperature is 475 °C and 590 °C, and the ε-Cu phase is spherical at 475 °C but became elongated cylinders at 590 °C. Moreover, the loading stress could aid in the growth of the ε-Cu phase at 475 °C.
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Affiliation(s)
- Shibo Yan
- China Institute of Atomic Energy, Beijing 102413, China
| | - Zijun Wang
- China Institute of Atomic Energy, Beijing 102413, China
| | - Tianfu Li
- China Institute of Atomic Energy, Beijing 102413, China
| | - Zhong Chen
- China Institute of Atomic Energy, Beijing 102413, China
| | - Xiaoming Du
- School of Materials Science and Engineering, Shenyang Ligong University, Shenyang 110158, China
| | - Yuntao Liu
- China Institute of Atomic Energy, Beijing 102413, China
| | - Dongfeng Chen
- China Institute of Atomic Energy, Beijing 102413, China
| | - Kai Sun
- China Institute of Atomic Energy, Beijing 102413, China
| | - Rongdeng Liu
- China Institute of Atomic Energy, Beijing 102413, China
| | - Bing Bai
- China Institute of Atomic Energy, Beijing 102413, China
| | - Xinfu He
- China Institute of Atomic Energy, Beijing 102413, China
| | - Kaitai Liu
- China Institute of Atomic Energy, Beijing 102413, China
| | - Shuanzhu Wang
- China Institute of Atomic Energy, Beijing 102413, China
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Zhang Y, Yang M. Leukemia followed by mixed infection with mucormycosis and aspergillosis: A case report and literature review. Zhong Nan Da Xue Xue Bao Yi Xue Ban 2023; 48:1105-1112. [PMID: 37724414 PMCID: PMC10930039 DOI: 10.11817/j.issn.1672-7347.2023.230039] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Subscribe] [Scholar Register] [Received: 02/05/2023] [Indexed: 09/20/2023]
Abstract
Leukemia complicated with Mucor and Aspergillus coinfection is very rare, which is difficult to diagnose, and life-threatening. The clinical characteristics, diagnosis and treatment in a child with acute myeloid leukemia (AML), who developed mucormycosis and aspergillus coinfection after chemotherapy, was reported. This case was a 12-year-old boy who presented with fever and cough during chemotherapy. Rhizomucor pusillus and Aspergillus flavus were detected in his blood, cerebrospinal fluid and alveolar lavage fluid by metagenomic next-generation sequencing (mNGS). Amphotericin B, posaconazole, and voriconazole were successively used for antifungal therapy. Skin debridement, bronchoalveolar lavage and local perfusion under bronchoscopy were performed. The infection of children was well controlled. The clinical manifestations of leukemia with mixed fungal infection are non-specific. The disease progresses rapidly and is prone to spread. Early diagnosis and treatment should be carried out. Combined antifungal therapy is recommended, and surgery is helpful to improve the patient's condition.
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Affiliation(s)
- Yuan Zhang
- Department of Pediatrics, Third Xiangya Hospital, Central South University; Hunan Clinical Research Center of Pediatric Cancer, Changsha 410013, China.
| | - Minghua Yang
- Department of Pediatrics, Third Xiangya Hospital, Central South University; Hunan Clinical Research Center of Pediatric Cancer, Changsha 410013, China.
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Xu L, Zhu Y, Cai H, Liu S, Cao Q, Zhuang Q. CX3CR1 regulates the development of renal interstitial fibrosis through macrophage polarization. Zhong Nan Da Xue Xue Bao Yi Xue Ban 2023; 48:957-966. [PMID: 37724398 PMCID: PMC10930042 DOI: 10.11817/j.issn.1672-7347.2023.220601] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Subscribe] [Scholar Register] [Received: 11/25/2022] [Indexed: 09/20/2023]
Abstract
OBJECTIVES The binding of CX3C chemokine receptor 1 (CX3CR1) and its unique ligand CX3C chemokine ligand 1 (CX3CL1) can promote the migration of inflammatory cells to the lesion and affect the progression of renal interstitial fibrosis, but the underlying mechanisms remain unclear. This study aims to investigate whether CX3CR1 affects renal interstitial fibrosis by macrophage polarization. METHODS A mouse model of renal interstitial fibrosis was established by unilateral ureteral obstruction (UUO). C57/B6 mice were divided into a CX3CR1 inhibitor group (injected with CX3CR1 inhibitor AZD8797) and a model group (injected with physiological saline). After continuous intraperitoneal injection for 5 days, the ligated lateral kidneys of mice were obtained on the 7th day. Hematoxylin and eosin (HE) staining and Masson staining were used to observe the infiltration of inflammatory cells and the collagen fiber deposition in renal interstitium, respectively. The mRNA and protein expressions of CX3CR1, alpha-smooth muscle actin (α-SMA) and fibronectin (FN) in the kidneys were detected by reverse transcription PCR (RT-PCR) and Western blotting, respectively. Differentially expressed genes in kidney of the 2 groups were identified by whole genome sequencing and the differential expression of arginase-1 (Arg-1) was verified by RT-PCR. Flow cytometry was used to detect the proportion of M2 type macrophages in kidneys of the 2 groups. RESULTS The infiltration of inflammatory cells and the collagen fiber deposition in renal interstitium were significantly reduced in the CX3CR1 inhibitor group. The mRNA and protein levels of CX3CR1 and the mRNA levels of α-SMA and FN in the CX3CR1 inhibitor group were significantly lower than those of the model group (all P<0.05). Whole genome sequencing showed that the top 5 differentially expressed genes in kidney of the 2 groups were Ugt1a6b, Serpina1c, Arg-1, Retnla, and Nup62. RT-PCR verified that the expression level of Arg-1 in kidney of the CX3CR1 inhibitor group was significantly higher than that of the model group (P<0.001). Flow cytometry showed that the proportion of Arg1+CD206+M2 macrophages in kidney of the CX3CR1 inhibitor group was significantly higher than that of the model group (P<0.01). CONCLUSIONS Inhibiting CX3CR1 can effectively prevent the progression of renal interstitial fibrosis. The mechanism may be related to macrophage polarization towards M2 type and upregulation of Arg-1 expression.
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Affiliation(s)
- Linyong Xu
- Transplantation Center, Third Xiangya Hospital, Central South University, Changsha 410013.
- School of Life Science, Central South University, Changsha 410013.
| | - Yanping Zhu
- School of Life Science, Central South University, Changsha 410013.
| | - Haozheng Cai
- Transplantation Center, Third Xiangya Hospital, Central South University, Changsha 410013
| | - Shu Liu
- Transplantation Center, Third Xiangya Hospital, Central South University, Changsha 410013
| | - Qingtai Cao
- Transplantation Center, Third Xiangya Hospital, Central South University, Changsha 410013
| | - Quan Zhuang
- Transplantation Center, Third Xiangya Hospital, Central South University, Changsha 410013.
- Research Center of National Health Commission on Transplantation Medicine, Changsha 410013, China.
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Liu L, Zhou L, Zhang Q, Zhang H. Mediation effect of self-neglect in family resilience and medication adherence in older patients undergoing maintenance hemodialysis. Zhong Nan Da Xue Xue Bao Yi Xue Ban 2023; 48:1066-1075. [PMID: 37724410 PMCID: PMC10930037 DOI: 10.11817/j.issn.1672-7347.2023.230045] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Subscribe] [Scholar Register] [Received: 02/11/2023] [Indexed: 09/20/2023]
Abstract
OBJECTIVES Chronic kidney disease (CKD) patients with regular dialysis treatment for more than 3 months are called maintenance hemodialysis (MHD). The degree of patients' adherence with the doctor's advice to take medicine on time is called medication adherence, which is very important for the control of the disease and the improvement of the quality of life for MHD patients. Living alone, lack of communication with children and self-neglect are risk factors for medication adherence in the older adults. Inappropriate substance use behaviors are common among older adults with self-neglect. Family resilience denotes the ability of a family to retain the stability of its structure by relying on its internal and external resources when facing a difficult situation. Family resilience entails the combination of family beliefs, interaction styles, problem-solving skills, and emotional communication which reflect supportive and positive psychological adjustment effects to benefit older persons. This study aims to provide a theoretical basis for clinical intervention level to improve medication adherence of older patients on MHD through examineing the correlation among family resilience, self-neglect, and medication adherence based on the self-reports. METHODS A random sampling method was used to gather information from 632 older patients receiving MHD treatment in Hemodialysis Center of Hunan Province between July to December 2021. For this purpose, a self-designed demographic questionnaire, the Family Resilience Questionnaire (FRQ), the Scale of the Elderly Self-Neglect (SESN), and the Morisky Medication Adherence Scale-4 (MMAS-4) were used to investigate the questionnaire data of the participants. Pearson correlation was used to examine the relationship between family resilience, self-neglect, and medication adherence in older patients and gain insight into their current status. AMOS 24.0 was used for mediation modeling. Bootstrap mediation effect test was used to evaluate the mediation effect among the 3 variables. RESULTS The questionnaires survey showed that the scores of FRQ, SESN, and MMAS-4 were 78.60±12.49, 7.99±5.60, and 5.93±1.40, respectively; and the medication adherence rate was 18.8%. Pearson correlation analysis showed that family resilience was negatively correlated with self-neglect (r=-0.432, P<0.001), and was positively correlated with medication adherence (r=0.169, P<0.001). Self-neglect was negatively correlated with medication adherence (r=-0.217, P<0.001). Mediating effect analysis showed that the total effect of family resilience on medication adherence was significant (β=0.214, 95% CI 0.121 to 0.313, P<0.001), and the direct effect was not significant (β=0.058, 95% CI -0.073 to 0.187, P>0.05). Self-neglect played a major mediating effect between family resilience and medication adherence (β=0.156, 95% CI 0.088 to 0.240, P<0.001). CONCLUSIONS Family resilience, self-neglect, and medication adherence among older patients on MHD are significantly related, with family resilience primarily influencing medication adherence indirectly through self-neglect.
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Affiliation(s)
- Liang Liu
- Blood Purification Center, Department of Nephrology, Second Xiangya Hospital, Central South University, Changsha 410011.
- Department of Clinical Nursing Teaching and Research, Second Xiangya Hospital, Central South University, Changsha 410011.
- Department of Nursing, College of Medicine, Hunan Normal University, Changsha 410013.
| | - Lin Zhou
- Blood Purification Center, Department of Nephrology, Second Xiangya Hospital, Central South University, Changsha 410011
- Department of Clinical Nursing Teaching and Research, Second Xiangya Hospital, Central South University, Changsha 410011
| | - Qing Zhang
- Department of Dermatology and Venereology, Second Xiangya Hospital, Central South University, Changsha 410011, China
| | - Huilin Zhang
- Department of Clinical Nursing Teaching and Research, Second Xiangya Hospital, Central South University, Changsha 410011.
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Zhang L, Guo SY, Wang G, Zheng X, Jia HM, Huang LF, Weng YB, Li WX. Predictive Value of Perioperative Cardiac Troponin I in Patients Undergone Liver Transplantation: A Retrospective Cohort Study. J Inflamm Res 2023; 16:3135-3142. [PMID: 37520668 PMCID: PMC10378647 DOI: 10.2147/jir.s420252] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2023] [Accepted: 07/01/2023] [Indexed: 08/01/2023] Open
Abstract
Objective To examine the change rule and clinical significance of cardiac troponin I (cTnI) in the perioperative period of liver transplantation in adults, as well as its association with 28-day mortality. Methods This was a retrospective cohort study: patients who underwent elective orthotopic liver transplantation (OLT) in Beijing Chao-Yang Hospital between June 2015 and June 2020 were selected, and plasma cTnI values were collected through the electronic medical record system within 7 days after surgery. Furthermore, the baseline clinical data of these patients were collected, and the change curve of cTnI values following liver transplantation was plotted. Using univariate and multivariate logistic regression models, the relationship between the level of postoperative cTnI and short-term mortality was investigated. The primary study endpoint was mortality within 28 days after surgery. Results We included 414 patients who had undergone liver transplantation in this study, 48 of whom died within 28 days after surgery. cTnI, a specific marker of myocardial injury, could predict that the postoperative cardiovascular complications were higher in the death group and significantly affect the short-term prognosis of patients; however, its prognostic cut-off value was approximately 0.545 ng/mL (13×URL), indicating that a minor elevation of cTnI after liver transplantation did not significantly affect the prognosis. Moreover, a comparison of the baseline data and postoperative ICU management scores of the two groups revealed that diabetes, maximum value of cTnI >0.545 ng/mL within 7 days, and the need for postoperative renal replacement therapy (RRT) were independent prognostic factors of death within 28 days after liver transplantation. Conclusion Within 7 days after surgery, an increase in cTnI to the maximum value of 0.545 ng/mL (13×URL) could have a significant impact on the short-term prognosis of patients. Diabetes and postoperative RRT were two independent prognostic factors for liver transplantation perioperative mortality.
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Affiliation(s)
- Lei Zhang
- Department of Critical Care, Beijing Lu He Hospital, Capital Medical University, Beijing, 101120, People’s Republic of China
| | - Shu-Yan Guo
- Department of Critical Care, Beijing Lu He Hospital, Capital Medical University, Beijing, 101120, People’s Republic of China
| | - Guan Wang
- Department of Critical Care, Beijing Lu He Hospital, Capital Medical University, Beijing, 101120, People’s Republic of China
| | - Xi Zheng
- Department of Surgical Intensive Care Unit, Beijing Chao-Yang Hospital, Capital Medical University, Beijing, 100020, People’s Republic of China
| | - Hui-Miao Jia
- Department of Surgical Intensive Care Unit, Beijing Chao-Yang Hospital, Capital Medical University, Beijing, 100020, People’s Republic of China
| | - Li-Feng Huang
- Department of Surgical Intensive Care Unit, Beijing Chao-Yang Hospital, Capital Medical University, Beijing, 100020, People’s Republic of China
| | - Yi-bing Weng
- Department of Critical Care, Beijing Lu He Hospital, Capital Medical University, Beijing, 101120, People’s Republic of China
| | - Wen-Xiong Li
- Department of Surgical Intensive Care Unit, Beijing Chao-Yang Hospital, Capital Medical University, Beijing, 100020, People’s Republic of China
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Ding P, Zhang P, Li H, Ming Y. Effect of mycophenolate mofetil alleviates carbon tetrachloride-induced liver fibrosis in mice. Zhong Nan Da Xue Xue Bao Yi Xue Ban 2023; 48:821-828. [PMID: 37587066 PMCID: PMC10930439 DOI: 10.11817/j.issn.1672-7347.2023.220542] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Subscribe] [Scholar Register] [Received: 10/21/2022] [Indexed: 08/18/2023]
Abstract
OBJECTIVES Hepatic fibrosis is a serious pathological consequence of chronic liver disease. Mycophenolate mofetil (MMF) is a commonly used immunosuppressant after organ transplant. However, the relationship between MMF and hepatic fibrosis remains unclear. This study aims to explore the effect of MMF on hepatic fibrosis in mice and the potential mechanism. METHODS A total of 24 mice (male, 8-week old, C57BL/6) were randomly divided into a control group, a MMF group, a carbon tetrachloride (CCl4) group and a CCl4+MMF group (n=6 in each group). After the mice were sacrificed, the serum alanine aminotransferase (ALT) and aspartate aminotransferase (AST) levels were detected. The liver tissues were taken up for Masson staining and collagen I (COL1) immunohistochemistry. The levels of transforming growth factor-β1 (TGF-β1) and α-smooth muscle actin (α-SMA) were detected by Western blotting. Finally, the levels of mRNA for TGF-β1, α-SMA, and COL1 were detected using real-time PCR. RESULTS Compared with the CCl4 group, the ALT and AST levels were lower (both P<0.05), the degree of liver fibrosis was alleviated, and the deposition of COL1 in the liver was significantly decreased (P<0.01) in the CCl4+MMF group. Compared with the CCl4 group, the protein expression levels of TGF-β1 and α-SMA were significantly decreased (both P<0.05) and the relative expression levels of TGF-β1, α-SMA and COL1 mRNA in the liver were significantly decreased (all P<0.05) in the CCl4+MMF. CONCLUSIONS MMF could reduce CCl4-induced hepatic fibrosis, which might be related to the inhibition of TGF-β1. This study is expected to provide a target for the treatment of hepatic fibrosis.
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Affiliation(s)
- Peng Ding
- Organ Transplantation Center, Third Xiangya Hospital, Central South University, Changsha 410013.
- Engineering and Technology Research Center for Transplantation Medicine of the National Health Commission, Changsha 410013, China.
| | - Pengpeng Zhang
- Organ Transplantation Center, Third Xiangya Hospital, Central South University, Changsha 410013.
- Engineering and Technology Research Center for Transplantation Medicine of the National Health Commission, Changsha 410013, China.
| | - Hao Li
- Organ Transplantation Center, Third Xiangya Hospital, Central South University, Changsha 410013
- Engineering and Technology Research Center for Transplantation Medicine of the National Health Commission, Changsha 410013, China
| | - Yingzi Ming
- Organ Transplantation Center, Third Xiangya Hospital, Central South University, Changsha 410013.
- Engineering and Technology Research Center for Transplantation Medicine of the National Health Commission, Changsha 410013, China.
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Shi R, DU W, He Y, Hu J, Yu H, Zhou W, Guo J, Feng X. High expression of VARS promotes the growth of multiple myeloma cells by causing imbalance in valine metabolism. Zhong Nan Da Xue Xue Bao Yi Xue Ban 2023; 48:795-808. [PMID: 37587064 PMCID: PMC10930441 DOI: 10.11817/j.issn.1672-7347.2023.220602] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Subscribe] [Scholar Register] [Received: 11/29/2022] [Indexed: 08/18/2023]
Abstract
OBJECTIVES Multiple myeloma (MM) is a plasma cell malignancy occurring in middle and old age. MM is still an incurable disease due to its frequent recurrence and drug resistance. However, its pathogenesis is still unclear. Abnormal amino acid metabolism is one of the important characteristics of MM, and the important metabolic pathway of amino acids participates in protein synthesis as basic raw materials. Aminoacyl transfer ribonucleic acid synthetase (ARS) gene is a key regulatory gene in protein synthesis. This study aims to explore the molecular mechanism for ARS, a key factor of amino acid metabolism, in regulating amino acid metabolism in MM and affecting MM growth. METHODS The corresponding gene number was combined with the gene expression profile GSE5900 dataset and GSE2658 dataset in Gene Expression Omnibus (GEO) database to standardize the gene expression data of ARS. GSEA_4.2.0 software was used to analyze the difference of gene enrichment between healthy donors (HD) and MM patients in GEO database. GraphPad Prism 7 was used to draw heat maps and perform data analysis. Kaplan-Meier and Cox regression model were used to analyze the expression of ARS gene and the prognosis of MM patients, respectively. Bone marrow samples from 7 newly diagnosed MM patients were collected, CD138+ and CD138- cells were obtained by using CD138 antibody magnetic beads, and the expression of ARS in MM clinical samples was analyzed by real-time RT-PCR. Human B lymphocyte GM12878 cells and human MM cell lines ARP1, NCI-H929, OCI-MY5, U266, RPMI 8266, OPM-2, JJN-3, KMS11, MM1.s cells were selected as the study objects. The expression of ARS in MM cell lines was analyzed by real-time RT-PCR and Western blotting. Short hairpin RNA (shRNA) lentiviruses were used to construct gene knock-out plasmids (VARS-sh group). No-load plasmids (scramble group) and gene knock-out plasmids (VARS-sh group) were transfected into HEK 293T cells with for virus packaging, respectively. Stable expression cell lines were established by infecting ARP1 and OCI-MY5 cells, and the effects of knockout valyl-tRNA synthetase (VARS) gene on proliferation and apoptosis of MM cells were detected by cell counting and flow cytometry, respectively. GEO data were divided into a high expression group and a low expression group according to the expression of VARS. Bioinformatics analysis was performed to explore the downstream pathways affected by VARS. Gas chromatography time-of-flight mass spectrometry (GC-TOF/MS) and high performance liquid chromatography (HPLC) were used to detect the valine content in CD138+ cells and ARP1, OCI-MY5 cells and supernatant of knockdown VARS gene in bone marrow samples from patients, respectively. RESULTS Gene enrichment analysis showed that tRNA processing related genes were significantly enriched in MM compared with HD (P<0.0001). Further screening of tRNA processing-pathway related subsets revealed that cytoplasmic aminoacyl tRNA synthetase family genes were significantly enriched in MM (P<0.0001). The results of gene expression heat map showed that the ARS family genes except alanyl-tRNA synthetase (AARS), arginyl-tRNA synthetase (RARS), seryl-tRNA synthetase (SARS) in GEO data were highly expressed in MM (all P<0.01). With the development of monoclonal gammopathy of undetermined significance (MGUS) to MM, the gene expression level was increased gradually. Kaplan-Meier univariate analysis of survival results showed that there were significant differences in the prognosis of MM patients in methionyl-tRNA synthetase (MARS), asparaginyl-tRNA synthetase (NARS) and VARS between the high expression group and the low expression group (all P<0.05). Cox regression model multivariate analysis showed that the high expression of VARS was associated with abnormal overall survival time of MM (HR=1.83, 95% CI 1.10 to 3.06, P=0.021). The high expression of NARS (HR=0.90, 95% CI 0.34 to 2.38) and MARS (HR=1.59, 95% CI 0.73 to 3.50) had no effect on the overall survival time of MM patients (both P>0.05). Real-time RT-PCR and Western blotting showed that VARS, MARS and NARS were highly expressed in CD138+ MM cells and MM cell lines of clinical patients (all P<0.05). Cell counting and flow cytometry results showed that the proliferation of MM cells by knockout VARS was significantly inhibited (P<0.01), the proportion of apoptosis was significantly increased (P<0.05). Bioinformatics analysis showed that in addition to several pathways including the cell cycle regulated by VARS, the valine, leucine and isoleucine catabolic pathways were upregulated. Non-targeted metabolomics data showed reduced valine content in CD138+ tumor cells in MM patients compared to HD (P<0.05). HPLC results showed that compared with the scramble group, the intracellular and medium supernatant content of ARP1 cells and the medium supernatant of OCI-MY5 in the VARS-shRNA group was increased (all P<0.05). CONCLUSIONS MM patients with abnormal high expression of VARS have a poor prognosis. VARS promotes the malignant growth of MM cells by affecting the regulation of valine metabolism.
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Affiliation(s)
- Rui Shi
- Department of Health Inspection and Quarantine, Xiangya School of Public Health, Central South University, Changsha 410006.
| | - Wanqing DU
- Department of Health Inspection and Quarantine, Xiangya School of Public Health, Central South University, Changsha 410006
| | - Yanjuan He
- Department of Hematology, Xiangya Hospital, Central South University, Changsha 410008
| | - Jian Hu
- Department of Hematology, Xiangya Hospital, Central South University, Changsha 410008
| | - Han Yu
- Department of Health Inspection and Quarantine, Xiangya School of Public Health, Central South University, Changsha 410006
| | - Wen Zhou
- Cancer Research Institute, School of Basic Medical Sciences, Central South University, Changsha 410078, China
| | - Jiaojiao Guo
- Department of Hematology, Xiangya Hospital, Central South University, Changsha 410008.
| | - Xiangling Feng
- Department of Health Inspection and Quarantine, Xiangya School of Public Health, Central South University, Changsha 410006.
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Wan J, Zhao L, Jin P. A case of early onset diabetes with myotonic dystrophy type 1. Zhong Nan Da Xue Xue Bao Yi Xue Ban 2023; 48:930-934. [PMID: 37587079 PMCID: PMC10930443 DOI: 10.11817/j.issn.1672-7347.2023.220599] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Subscribe] [Scholar Register] [Received: 11/25/2022] [Indexed: 08/18/2023]
Abstract
Myotonic dystrophy type 1 (DM1, OMIM 160900) is a rare autosomal dominant hereditary disease. A case of DM1 patient with early onset diabetes and decreased muscle strength was treated in the Department of Endocrinology, Third Xiangya Hospital, Central South University. The peripheral blood of the patient was collected to extract DNA for gene detection. It was found that the triple nucleotide CTG repeat in the 3'-untranslated region (3'-UTR) of the dystrophia myotonica protein kinase (DMPK) gene was more than 100 times, and the diagnosis of DM1 was clear. For diabetes patients with multiple system abnormalities such as muscle symptoms, attention should be paid to the screening of DM1, a rare disease.
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Affiliation(s)
- Jinjing Wan
- Department of Endocrinology, Third Xiangya Hospital, Central South University, Changsha 410013, China.
| | - Liling Zhao
- Department of Endocrinology, Third Xiangya Hospital, Central South University, Changsha 410013, China.
| | - Ping Jin
- Department of Endocrinology, Third Xiangya Hospital, Central South University, Changsha 410013, China. ,
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Wang D, Liu Y, Zong X, Yan S, Lu J. Ozonated triglyceride protects against septic lethality via preventing the activation of NLRP3 inflammasome. Zhong Nan Da Xue Xue Bao Yi Xue Ban 2023; 48:809-820. [PMID: 37587065 PMCID: PMC10930436 DOI: 10.11817/j.issn.1672-7347.2023.220634] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Subscribe] [Scholar Register] [Received: 12/14/2022] [Indexed: 08/18/2023]
Abstract
OBJECTIVES Sepsis is a critical dysregulated host response with high mortality and current treatment is difficult to achieve optimal efficacy. Ozone therapy has been revealed to protect infection and inflammation-related diseases due to its role in antibiotic and immunoregulatory effect. Ozonated triglyceride is a key component of ozonated oil that is one of ozone therapy dosage form. However, the potential role of ozonated triglyceride in sepsis remains unclear. This study aims to explore the effect of ozonated triglyceride on septic mouse model and the molecular mechanism. METHODS Intraperitoneal injection of lipopolysaccharide (LPS), cecal ligation and puncture (CLP) were applied to construct septic mouse model. The mouse serum was obtained for detection of cytokines, and lung tissues were collected for hematoxylin and eosin (HE) staining to evaluate the extent of lung injury in septic mouse with ozonated triglyceride treatment at different time and doses. The survival of septic mice was observed for 96 h and Kaplan-Meier analysis was used to analyze the survival rates. In addition, primary peritoneal macrophages and human acute monocytic-leukemia cell line (THP-1) were treated with inflammasome activators with or without ozonated triglyceride. The level of cytokines was detected by enzyme-linked immunosorbent assay (ELISA). The cleavage of caspase-1 and gasdermin-D (GSDMD) was detected by Western blotting. RESULTS Ozonated triglyceride at different time and doses reduced the release of inflammasome-related cytokines [interleukin (IL)-1β and IL-18] (all P<0.05) but not pro-inflammatory cytokines such as IL-6 and tumor necrosis factor-α (TNF-α) in septic mice (all P>0.05). Ozonated triglyceride significantly improved the survival rate of septic mice and reduced sepsis-induced lung injury (all P<0.05). Ozonated triglyceride significantly suppressed the canonical and non-canonical activation of NOD-like receptor family pyrin domain containing 3 (NLRP3) inflammasome (all P<0.05) but not affected absent in melanoma 2 (AIM2) and NLR family CARD domain-containing protein 4 (NLRC4) inflammasomes in vitro (all P>0.05). Ozonated triglyceride reduced the cleavage of caspase-1 and the downstream GSDMD. CONCLUSIONS Ozonated triglyceride presents a protect effect on sepsis lethality via reducing cytokines release and sepsis-related organ injury. The mechanism is that ozonated triglyceride specifically suppresses the activation of NLRP3 inflammasome. Ozonated triglyceride is a promising candidate for sepsis treatment.
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Affiliation(s)
- Dan Wang
- Department of Dermatology, Third Xiangya Hospital, Central South University, Changsha 410013.
- Medical Ozone Research Center, Central South University, Changsha 410013, China.
| | - Yuanhong Liu
- Department of Dermatology, Third Xiangya Hospital, Central South University, Changsha 410013
- Medical Ozone Research Center, Central South University, Changsha 410013, China
| | - Xiule Zong
- Department of Dermatology, Third Xiangya Hospital, Central South University, Changsha 410013
- Medical Ozone Research Center, Central South University, Changsha 410013, China
| | - Siyu Yan
- Department of Dermatology, Third Xiangya Hospital, Central South University, Changsha 410013.
- Medical Ozone Research Center, Central South University, Changsha 410013, China.
| | - Jianyun Lu
- Department of Dermatology, Third Xiangya Hospital, Central South University, Changsha 410013.
- Medical Ozone Research Center, Central South University, Changsha 410013, China.
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