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Zhang L, Wang Z, Sun X, Rong W, Deng W, Yu J, Xu X, Yu Q. Nasal mucosa-derived mesenchymal stem cells prolonged the survival of septic rats by protecting macrophages from pyroptosis. Cell Immunol 2024; 401-402:104840. [PMID: 38880071 DOI: 10.1016/j.cellimm.2024.104840] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2024] [Revised: 05/18/2024] [Accepted: 06/03/2024] [Indexed: 06/18/2024]
Abstract
Sepsis is characterized by an exacerbated inflammatory response, driven by the overproduction of cytokines, a phenomenon known as a cytokine storm. This condition is further compounded by the extensive infiltration of M1 macrophages and the pyroptosis of these cells, leading to immune paralysis. To counteract this, we sought to transition M1 macrophages into the M2 phenotype and safeguard them from pyroptosis. For this purpose, we employed ectodermal mesenchymal stem cells (EMSCs) sourced from the nasal mucosa to examine their impact on both macrophages and septic animal models. The co-culture protocol involving LPS-stimulated rat bone marrow macrophages and EMSCs was employed to examine the paracrine influence of EMSCs on macrophages. The intravenous administration of EMSCs was utilized to observe the enhancement in the survival rate of septic rat models and the protection of associated organs. The findings indicated that EMSCs facilitated M2 polarization of macrophages, which were stimulated by LPS, and significantly diminished levels of pro-inflammatory cytokines and NLRP3. Furthermore, EMSCs notably restored the mitochondrial membrane potential (MMP) of macrophages through paracrine action, eliminated excess reactive oxygen species (ROS), and inhibited macrophage pyroptosis. Additionally, the systemic integration of EMSCs substantially reduced injuries to multiple organs and preserved the fundamental functions of the heart, liver, and kidney in CLP rats, thereby extending their survival.
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Affiliation(s)
| | - Zhe Wang
- School of Pharmacy, Jiangsu University, China
| | - Xuan Sun
- School of Pharmacy, Jiangsu University, China
| | | | - Wenwen Deng
- School of Pharmacy, Jiangsu University, China
| | - Jiangnan Yu
- School of Pharmacy, Jiangsu University, China
| | - Ximing Xu
- School of Pharmacy, Jiangsu University, China
| | - Qingtong Yu
- School of Pharmacy, Jiangsu University, China.
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2
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Chen H, Xu C, Huang Q, Chen Y, Cheng K, Wang H, Chen X. Investigation of the impact of planar microelectrodes on macrophage-mediated mesenchymal stem cell osteogenesis. Front Cell Dev Biol 2024; 12:1401917. [PMID: 38887522 PMCID: PMC11180747 DOI: 10.3389/fcell.2024.1401917] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2024] [Accepted: 04/08/2024] [Indexed: 06/20/2024] Open
Abstract
Osseointegration commences with foreign body inflammation upon implant placement, where macrophages play a crucial role in the immune response. Subsequently, during the intermediate and late stages of osseointegration, mesenchymal stem cells (MSCs) migrate and initiate their osteogenic functions, while macrophages support MSCs in osteogenesis. The utilization of ferroelectric P(VDF-TrFE) covered ITO planar microelectrodes facilitated the simulation of various surface charge to investigate their effects on MSCs' osteogenic differentiation and macrophage polarization and the results indicated a parabolic increase in the promotional effect of both with the rise in piezoelectric coefficient. Furthermore, the surface charge with a piezoelectric coefficient of -18 exhibited the strongest influence on the promotion of M1 polarization of macrophages and the promotion of MSCs' osteogenic differentiation. The impact of macrophage polarization and MSC osteogenesis following the interaction of macrophages affected by surface charge and MSC was ultimately investigated. It was observed that macrophages affected by the surface charge of -18 piezoelectric coefficient still exerted the most profound induced osteogenic effect, validating the essential role of M1-type macrophages in the osteogenic differentiation of MSCs.
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Affiliation(s)
- Hui Chen
- School of Medicine, Zhejiang University, Hangzhou, China
- Stomatology Hospital, School of Stomatology, Zhejiang University School of Medicine, Zhejiang Provincial Clinical Research Center for Oral Diseases, Key Laboratory of Oral Biomedical Research of Zhejiang Province, Cancer Center of Zhejiang University, Engineering Research Center of Oral Biomaterials and Devices of Zhejiang Province, Hangzhou, China
| | - Chuchu Xu
- School of Medicine, Zhejiang University, Hangzhou, China
- Stomatology Hospital, School of Stomatology, Zhejiang University School of Medicine, Zhejiang Provincial Clinical Research Center for Oral Diseases, Key Laboratory of Oral Biomedical Research of Zhejiang Province, Cancer Center of Zhejiang University, Engineering Research Center of Oral Biomaterials and Devices of Zhejiang Province, Hangzhou, China
| | - Qin Huang
- School of Medicine, Zhejiang University, Hangzhou, China
- Stomatology Hospital, School of Stomatology, Zhejiang University School of Medicine, Zhejiang Provincial Clinical Research Center for Oral Diseases, Key Laboratory of Oral Biomedical Research of Zhejiang Province, Cancer Center of Zhejiang University, Engineering Research Center of Oral Biomaterials and Devices of Zhejiang Province, Hangzhou, China
| | - Yuhua Chen
- School of Medicine, Zhejiang University, Hangzhou, China
- Stomatology Hospital, School of Stomatology, Zhejiang University School of Medicine, Zhejiang Provincial Clinical Research Center for Oral Diseases, Key Laboratory of Oral Biomedical Research of Zhejiang Province, Cancer Center of Zhejiang University, Engineering Research Center of Oral Biomaterials and Devices of Zhejiang Province, Hangzhou, China
| | - Kui Cheng
- School of Materials Science and Engineering, State Key Laboratory of Silicon Materials, Zhejiang University, Hangzhou, China
| | - Huiming Wang
- School of Medicine, Zhejiang University, Hangzhou, China
- Stomatology Hospital, School of Stomatology, Zhejiang University School of Medicine, Zhejiang Provincial Clinical Research Center for Oral Diseases, Key Laboratory of Oral Biomedical Research of Zhejiang Province, Cancer Center of Zhejiang University, Engineering Research Center of Oral Biomaterials and Devices of Zhejiang Province, Hangzhou, China
| | - Xiaoyi Chen
- School of Medicine, Zhejiang University, Hangzhou, China
- Stomatology Hospital, School of Stomatology, Zhejiang University School of Medicine, Zhejiang Provincial Clinical Research Center for Oral Diseases, Key Laboratory of Oral Biomedical Research of Zhejiang Province, Cancer Center of Zhejiang University, Engineering Research Center of Oral Biomaterials and Devices of Zhejiang Province, Hangzhou, China
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Wang Z, Wang M, Zeng X, Yue X, Wei P. Nanomaterial-induced pyroptosis: a cell type-specific perspective. Front Cell Dev Biol 2024; 11:1322305. [PMID: 38264354 PMCID: PMC10803419 DOI: 10.3389/fcell.2023.1322305] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2023] [Accepted: 12/28/2023] [Indexed: 01/25/2024] Open
Abstract
This review presents the advancements in nanomaterial (NM)-induced pyroptosis in specific types of cells. We elucidate the relevance of pyroptosis and delineate its mechanisms and classifications. We also retrospectively analyze pyroptosis induced by various NMs in a broad spectrum of non-tumorous cellular environments to highlight the multifunctionality of NMs in modulating cell death pathways. We identify key knowledge gaps in current research and propose potential areas for future exploration. This review emphasizes the need to focus on less-studied areas, including the pathways and mechanisms of NM-triggered pyroptosis in non-tumor-specific cell types, the interplay between biological and environmental factors, and the interactions between NMs and cells. This review aims to encourage further investigations into the complex interplay between NMs and pyroptosis, thereby providing a basis for developing safer and more effective nanomedical therapeutic applications.
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Affiliation(s)
- Zhiyong Wang
- Department of Immunology, Zhuhai Campus of Zunyi Medical University, Zhuhai, China
| | - Min Wang
- Department of Pharmaceutics, Zhuhai Campus of Zunyi Medical University, Zhuhai, China
| | - Xuan Zeng
- Department of Pharmaceutics, Guangdong Provincial People’s Hospital Zhuhai Hospital, Zhuhai, China
| | - Xupeng Yue
- College of Bioengineering, Zhuhai Campus of Zunyi Medical University, Zhuhai, China
| | - Pei Wei
- Department of Immunology, Zhuhai Campus of Zunyi Medical University, Zhuhai, China
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Chen R, Zhu H, Wang Z, Zhang Y, Wang J, Huang Y, Gu L, Li C, Xiong X, Jian Z. Targeting Microglia/Macrophages Notch1 Protects Neurons from Pyroptosis in Ischemic Stroke. Brain Sci 2023; 13:1657. [PMID: 38137105 PMCID: PMC10741505 DOI: 10.3390/brainsci13121657] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2023] [Revised: 11/26/2023] [Accepted: 11/28/2023] [Indexed: 12/24/2023] Open
Abstract
BACKGROUND AND AIMS The immune-inflammatory cascade and pyroptosis play an important role in the pathogenesis of cerebral ischemia-reperfusion injury (CIRI). The maintenance of immune homeostasis is inextricably linked to the Notch signaling pathway, but whether myeloid Notch1 affects microglia polarization as well as neuronal pyroptosis in CIRI is not fully understood. This study was designed to clarify the role of myeloid Notch1 in CIRI, providing new therapeutic strategies for ischemic stroke. METHODS AND RESULTS Myeloid-specific Notch1 knockout (Notch1M-KO) mice and the floxed Notch1 (Notch1FL/FL) mice were subjected to middle cerebral artery occlusion (MCAO). After 3 days of CIRI, we evaluated the neurological deficit score and cerebral infarction volume. Immunofluorescence staining was used to detect the expression of Notch1 and microglial subtype markers. Cerebral infiltrating macrophages were detected by flow cytometry. RT-qPCR was used to detect pro-inflammatory cytokines. Western blot was used to detect the expression of pyroptosis related proteins. The Notch1-siRNA transfected BV2 cells were co-cultured with HT22 cells to investigate the potential mechanisms by which microglial Notch1 affects neuronal pyroptosis induced by anoxia/reoxygenation in vitro. We found that Notch1 was activated in cerebral microglia/macrophages after CIRI. Myeloid Notch1 deficiency decreased the cerebral infarct volume (24.17 ± 3.29 vs. 36.17 ± 2.27, p < 0.001), neurological function scores (2.33 ± 0.47 vs. 3.17 ± 0.37, p < 0.001) and the infiltration of peripheral monocytes/macrophages (3.26 ± 0.53 vs. 5.67 ± 0.57, p < 0.01). Strikingly, myeloid-specific Notch1 knockout alleviated pyroptosis. Compared with microglia M1, increased microglia M2 were detected in the ischemic penumbra. In parallel in vitro co-culture experiments, we found that Notch1 knockdown in microglial BV2 cells inhibited anoxia/reoxygenation-induced JAK2/STAT3 activation and pyroptosis in hippocampal neuron HT22 cells. CONCLUSIONS Our findings elucidate the underlying mechanism of the myeloid Notch1 signaling pathway in regulating neuronal pyroptosis in CIRI, suggesting that targeting myeloid-specific Notch1 is an effective strategy for the treatment of ischemic stroke.
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Affiliation(s)
- Ran Chen
- Department of Neurosurgery, Renmin Hospital of Wuhan University, Wuhan 430064, China; (R.C.); (H.Z.); (Z.W.); (Y.Z.); (Y.H.); (X.X.)
| | - Hua Zhu
- Department of Neurosurgery, Renmin Hospital of Wuhan University, Wuhan 430064, China; (R.C.); (H.Z.); (Z.W.); (Y.Z.); (Y.H.); (X.X.)
| | - Zhihui Wang
- Department of Neurosurgery, Renmin Hospital of Wuhan University, Wuhan 430064, China; (R.C.); (H.Z.); (Z.W.); (Y.Z.); (Y.H.); (X.X.)
| | - Yonggang Zhang
- Department of Neurosurgery, Renmin Hospital of Wuhan University, Wuhan 430064, China; (R.C.); (H.Z.); (Z.W.); (Y.Z.); (Y.H.); (X.X.)
| | - Jin Wang
- Department of Anesthesia, Renmin Hospital of Wuhan University, Wuhan 430064, China;
| | - Yingao Huang
- Department of Neurosurgery, Renmin Hospital of Wuhan University, Wuhan 430064, China; (R.C.); (H.Z.); (Z.W.); (Y.Z.); (Y.H.); (X.X.)
| | - Lijuan Gu
- Central Laboratory, Renmin Hospital of Wuhan University, Wuhan 430064, China;
| | - Changyong Li
- Department of Physiology, School of Basic Medical Sciences, Wuhan University, Wuhan 430072, China;
| | - Xiaoxing Xiong
- Department of Neurosurgery, Renmin Hospital of Wuhan University, Wuhan 430064, China; (R.C.); (H.Z.); (Z.W.); (Y.Z.); (Y.H.); (X.X.)
| | - Zhihong Jian
- Department of Neurosurgery, Renmin Hospital of Wuhan University, Wuhan 430064, China; (R.C.); (H.Z.); (Z.W.); (Y.Z.); (Y.H.); (X.X.)
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5
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Han C, Pei H, Sheng Y, Wang J, Zhou X, Li W, Guo L, Kong Y, Yang Y. Toxicological mechanism of triptolide-induced liver injury: Caspase3-GSDME-mediated pyroptosis of Kupffer cell. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2023; 258:114963. [PMID: 37130490 DOI: 10.1016/j.ecoenv.2023.114963] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/26/2022] [Revised: 04/22/2023] [Accepted: 04/25/2023] [Indexed: 05/04/2023]
Abstract
AIM Triptolide (TRI) is an active diterpenoid lactone compound isolated from Tripterygium wilfordii,We focused on investigating the effect and mechanism of Triptolide (TRI) on liver injury. METHODS The toxic dose (LD50 = 100 μM) of TRI on liver Kupffer cells was explored, and network pharmacological analysis was performed to identify Caspase-3 as the target of TRI-induced liver injury. Regarding the pyroptosis research, we examined the level of TRI-induced pyroptosis in Kupffer cells, including inflammatory cytokine detection, protein assay, microscopic cell observation and LDH toxicity test. The effect of TRI on pyroptosis was assessed after knocking out GSDMD, GSDME and Caspase-3 in cells, respectively. We also investigated the liver injury-inducing action of TRI at the animal level. RESULTS Our experimental results were consistent with those predicted by network pharmacology, indicating that TRI could bind to Caspase-3-VAL27 site to promote the cleavage of Caspase-3, and Cleaved-Caspase-3 induced pyroptosis of Kupffer cells through GSDME cleavage. GSDMD was not involved in TRI's action. TRI could promote Kupffer cell pyroptosis, elevate the inflammatory cytokine levels, and facilitate the expressions of N-GSDME and Cleaved-Capase 3. After the mutation of VAL27, TRI could not bind to Caspase-3. Animal-level results showed that TRI could induce liver injury in mice, while Caspase-3 knockout or Caspase-3 inhibitors could antagonize the action of TRI. CONCLUSION We find that the TRI-induced liver injury occurs primarily through the Caspase-3-GSDME pyroptosis signal. TRI can promote Caspase - 3 maturation and regulate kupffer cell pyroptosis. The present findings offer a new idea for the safe use of TRI.
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Affiliation(s)
- Chenyang Han
- Department of pharmacy,The Second Affiliated Hospital of Jiaxing University, 314001, China
| | - Hongyan Pei
- College of Chinese Medicinal Materials, Jilin Agricultural University, Changchun 130118, China
| | - Yongjia Sheng
- Department of pharmacy,The Second Affiliated Hospital of Jiaxing University, 314001, China
| | - Jin Wang
- Department of pharmacy,The Second Affiliated Hospital of Jiaxing University, 314001, China
| | - Xiaohong Zhou
- Department of pharmacy,The Second Affiliated Hospital of Jiaxing University, 314001, China
| | - Wenyan Li
- Department of pharmacy,The Second Affiliated Hospital of Jiaxing University, 314001, China
| | - Li Guo
- Department of Center Laboratory, The Second Affiliated Hospital of Jiaxing University, China
| | - Yun Kong
- Department of pharmacy,The Second Affiliated Hospital of Jiaxing University, 314001, China.
| | - Yi Yang
- Department of pharmacy,The Second Affiliated Hospital of Jiaxing University, 314001, China.
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Yu W, Kang C, Zhang Y, Li Q, Zhang Z, Zheng Y, Liu X, Yan J. The San-Qi-Xue-Shang-Ning formula protects against ulcerative colitis by restoring the homeostasis of gut immunity and microbiota. JOURNAL OF ETHNOPHARMACOLOGY 2023; 305:116125. [PMID: 36603786 DOI: 10.1016/j.jep.2022.116125] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/22/2022] [Revised: 12/28/2022] [Accepted: 12/29/2022] [Indexed: 06/17/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Ulcerative colitis (UC) is a major cause of morbidity and mortality due to repetitive remissions and relapses, and many severe complications, including colitis-associated cancer (CAC). The San-Qi-Xue-Shang-Ning (SQ) formula has been utilized in clinical practice to treat gut diseases, but its pharmacological evidence is limited and awaits elucidation. AIM OF THE STUDY Here, we elucidated the molecular mechanisms of the SQ formula. MATERIALS AND METHODS Its therapeutic value in combating UC and CAC was predicted from network pharmacology and weighted gene co-expression network analysis (WGCNA). Experimental colitis models were established by feeding dextran sodium sulfate (DSS) to C57BL/6N mice for 7 days, and they were subjected to the SQ formula for 14 days. High-throughput technologies and biochemical investigations were executed to corroborate the anti-colitis effect. RESULTS Network pharmacology and WGCNA demonstrated that the targets of the SQ formula were associated with interleukin-17 (IL-17), tumor necrosis factor (TNF), IL-1b and peroxisome proliferators-activated receptor (PPAR) signaling pathways, and correlated with the survival in patients with colorectal cancer. In mice with colitis, the SQ treatment hindered colitis progression in a dose-dependent manner, as evidenced by the rescued colon length and weight loss, improved colonic epithelial integrity, and abolished crypt loss. In addition to the suppressed serum IL-17, TNFα, and IL-1b levels, the SQ-treated colitis mice exhibited decreased colonic protein abundance of hypoxia-inducible factor-1α (HIF-1 α), PPARα, and Caspase3 (Casp3) with an increased PPARγ expression. Concurrently, the high dose of SQ promoted the alternative activation of peritoneal macrophages by increasing Arg1 and inhibiting iNOS2, thereby facilitating the migration of NCM460 cells and controlling TNF-induced reactive oxygen species production and apoptosis in intestinal organoids. In colitis-accompanied dysbiosis, the SQ formula reversed the decreased microbiota diversity indexes and restored the microbiome profile in the murine colitis models. CONCLUSION The SQ formula is a potent anti-colitis drug that facilitates inflammation resolution and restores gut microbiota homeostasis.
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Affiliation(s)
- Wei Yu
- Department of Physiology, Jining Medical University, Jining City, Shandong province, China.
| | - Cai Kang
- Department of Physiology, Jining Medical University, Jining City, Shandong province, China.
| | - Yijia Zhang
- Department of Physiology, Jining Medical University, Jining City, Shandong province, China.
| | - Qi Li
- Department of Physiology, Jining Medical University, Jining City, Shandong province, China.
| | - Zhiqiang Zhang
- Department of Physiology, Jining Medical University, Jining City, Shandong province, China.
| | - Yang Zheng
- Department of Physiology, Jining Medical University, Jining City, Shandong province, China.
| | - Xincheng Liu
- Department of Physiology, Jining Medical University, Jining City, Shandong province, China.
| | - Jing Yan
- Department of Physiology, Jining Medical University, Jining City, Shandong province, China.
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Wang C, Pan Z, Jin Y. F-53B induces hepatotoxic effects and slows self-healing in ulcerative colitis in mice. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2023; 317:120819. [PMID: 36481465 DOI: 10.1016/j.envpol.2022.120819] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/03/2022] [Revised: 10/28/2022] [Accepted: 12/03/2022] [Indexed: 06/17/2023]
Abstract
Chlorinated polyfluorinated ether sulfonate (F-53 B) is a distinct substitute for perfluorooctane sulphonate. It has been reported to be biologically toxic to mammals, causing enteric toxicity, liver toxicity and neurotoxicity. However, studies about the effects of F-53 B on patients with gastrointestinal diseases such as inflammatory bowel disease are very limited. In this study, whether the toxic impacts of F-53 B on the gut and liver can be exacerbated in mice with colitis was explored. The sensitivity of mice with acute colitis caused by dextran sulfate sodium salt (DSS) to F-53 B was compared with that of healthy mice. The mice were administered water containing F-53 B at doses of 10 and 100 μg/L sequentially for two weeks, respectively. F-53 B exposure exacerbated DSS-induced colonic inflammation, including inducing shortening of colon length, inflammatory cell infiltration and more severe histopathological symptoms. In addition, F-53 B administration significantly increased the levels of inflammatory cytokines, including interleukin (IL)-1, IL-6 and tumour necrosis factor-α, in the plasma of mice with enteritis compared with control group. F-53 B impaired intestinal integrity of mice with colitis by downregulating Claudin-1 and antimicrobial peptide-related genes while elevating serum lipopolysaccharide levels. In addition, in mice with colitis, F-53 B increased the levels of serum total cholesterol, triglyceride, low-density lipoprotein cholesterol, aspartate aminotransferase, and alanine aminotransferase, resulted in more severe liver inflammation and increased the level of genes related to the Gasdermin D-mediated pyrolysis. Conclusively, our results indicated that F-53 B delayed the self-healing of ulcerative colitis (UC) and caused liver inflammation in mice. This study provided some new insights into the health risks of F-53 B and raises concerns about the health of individuals with UC.
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Affiliation(s)
- Caihong Wang
- College of Biotechnology and Bioengineering, Zhejiang University of Technology, Hangzhou, 310032, Zhejiang, China; Department of Bioinformatics, College of Life Sciences, Zhejiang University, Hangzhou, 310058, China
| | - Zihong Pan
- College of Biotechnology and Bioengineering, Zhejiang University of Technology, Hangzhou, 310032, Zhejiang, China
| | - Yuanxiang Jin
- College of Biotechnology and Bioengineering, Zhejiang University of Technology, Hangzhou, 310032, Zhejiang, China.
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8
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Pei X, Jiang H, Li C, Li D, Tang S. Oxidative stress-related canonical pyroptosis pathway, as a target of liver toxicity triggered by zinc oxide nanoparticles. JOURNAL OF HAZARDOUS MATERIALS 2023; 442:130039. [PMID: 36166902 DOI: 10.1016/j.jhazmat.2022.130039] [Citation(s) in RCA: 22] [Impact Index Per Article: 22.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/16/2022] [Revised: 09/04/2022] [Accepted: 09/18/2022] [Indexed: 06/16/2023]
Abstract
Zinc oxide nanoparticles (ZnO NPs) have been widely used in the fields of daily necessities, clinical diagnosis, drug delivery and agricultural production. The improper use of ZnO NPs could pose a risk to ecological environment and public health. Liver has been known as a critical toxic target of ZnO NPs. However, the question whether ZnO NPs lead to hepatocyte death through pyroptosis has not been answered yet, and the effect of oxidative stress on ZnO NPs-induced pyroptosis remains a mystery. We revealed that ZnO NPs disrupted zinc homeostasis and induced oxidative stress impairment in rat liver. Meanwhile, ZnO NPs triggered the assembly of NLRP3-ASC-Caspase-1 inflammatory complex and pyroptosis in both rat liver and HepG2 cells, further causing the activation of GSDMD, promoting the leakage of inflammatory cytokines including IL-1β and IL-18. Importantly, the inhibition of oxidative stress was found to provide protection against pyroptosis in hepatocyte exposed to ZnO NPs. We identified a novel mechanism of liver damage induced by ZnO NPs, demonstrating the activation of canonical Caspase-1-dependent pyroptosis pathway and clarifying the protection of antioxidation against pyroptosis damage. Our discovery provided a support for risk assessment of ZnO NPs and target exploration for clinical treatment related to pyroptosis.
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Affiliation(s)
- Xingyao Pei
- Department of Pharmacology and Toxicology, College of Veterinary Medicine, China Agricultural University, Yuanmingyuan West Road No.2, Haidian District, Beijing 100193, China
| | - Haiyang Jiang
- Department of Pharmacology and Toxicology, College of Veterinary Medicine, China Agricultural University, Yuanmingyuan West Road No.2, Haidian District, Beijing 100193, China
| | - Cun Li
- Tianjin Key Laboratory of Agricultural Animal Breeding and Healthy Husbandry, College of Animal Science and Veterinary Medicine, Tianjin Agricultural University, Jinjing Road No.22, Xiqing District, Tianjin 300384, China
| | - Daowen Li
- Tianjin Key Laboratory of Agricultural Animal Breeding and Healthy Husbandry, College of Animal Science and Veterinary Medicine, Tianjin Agricultural University, Jinjing Road No.22, Xiqing District, Tianjin 300384, China; Tianjin Key Laboratory of Biological Feed Additive Enterprise, S&E Burgeoning Biotechnology (Tianjin) Co., Ltd, Tianjin 300383, China; State Key Laboratory of Medicinal Chemical Biology and Tianjin Key Laboratory of Molecular Drug Research, College of Pharmacy, Nankai University, Haihe Education Park, Tongyan Road No. 38, Tianjin 300353, China.
| | - Shusheng Tang
- Department of Pharmacology and Toxicology, College of Veterinary Medicine, China Agricultural University, Yuanmingyuan West Road No.2, Haidian District, Beijing 100193, China.
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9
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Zhang Z, Zhou Y, Zhao S, Ding L, Chen B, Chen Y. Nanomedicine-Enabled/Augmented Cell Pyroptosis for Efficient Tumor Nanotherapy. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2022; 9:e2203583. [PMID: 36266982 PMCID: PMC9762308 DOI: 10.1002/advs.202203583] [Citation(s) in RCA: 19] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/20/2022] [Revised: 08/23/2022] [Indexed: 05/19/2023]
Abstract
The terrible morbidity and mortality of malignant tumors urgently require innovative therapeutics, especially for apoptosis-resistant tumors. Pyroptosis, a pro-inflammatory form of programmed cell death (PCD), is featured with pore formation in plasma membrane, cell swelling with giant bubbles, and leakage of cytoplasmic pro-inflammatory cytokines, which can remodel the tumor immune microenvironment by stimulating a "cold" tumor microenvironment to be an immunogenic "hot" tumor microenvironment, and consequently augment the therapeutic efficiency of malignant tumors. Benefiting from current advances in nanotechnology, nanomedicine is extensively applied to potentiate, enable, and augment pyroptosis for enhancing cancer-therapeutic efficacy and specificity. This review provides a concentrated summary and discussion of the most recent progress achieved in this emerging field, highlighting the nanomedicine-enabled/augmented specific pyroptosis strategy for favoring the construction of next-generation nanomedicines to efficiently induce PCD. It is highly expected that the further clinical translation of nanomedicine can be accelerated by inducing pyroptotic cell death based on bioactive nanomedicines.
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Affiliation(s)
- Zheng Zhang
- Department of UltrasoundAffiliated Hospital of Jiangsu UniversityZhenjiang212000P. R. China
| | - Yajun Zhou
- Department of UltrasoundThe Fourth Affiliated HospitalNanjing Medical UniversityNanjing210029P. R. China
| | - Shuangshuang Zhao
- Department of UltrasoundAffiliated Hospital of Jiangsu UniversityZhenjiang212000P. R. China
| | - Li Ding
- Tongji University School of MedicineShanghai Tenth People's HospitalTongji University Cancer CenterShanghai Engineering Research Center of Ultrasound Diagnosis and TreatmentNational Clinical Research Center of Interventional MedicineShanghai200072P. R. China
| | - Baoding Chen
- Department of UltrasoundAffiliated Hospital of Jiangsu UniversityZhenjiang212000P. R. China
| | - Yu Chen
- Materdicine LabSchool of Life SciencesShanghai UniversityShanghai200444P. R. China
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m(6)A methyltransferase METTL3 relieves cognitive impairment of hyperuricemia mice via inactivating MyD88/NF-κB pathway mediated NLRP3-ASC-Caspase1 inflammasome. Int Immunopharmacol 2022; 113:109375. [PMID: 36461592 DOI: 10.1016/j.intimp.2022.109375] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2021] [Revised: 10/15/2022] [Accepted: 10/16/2022] [Indexed: 11/07/2022]
Abstract
BACKGROUND Recent studies have uncovered that hyperuricemia (HUA) leads to cognitive deficits, which are accompanied by neuronal damage and neuroinflammation. Here, we aim to explore the role of methyltransferase-like 3 (METTL3) in HUA-mediated neuronal apoptosis and microglial inflammation. METHODS A HUA mouse model was constructed. The spatial memory ability of the mice was assessed by the Morris water maze experiment (MWM), and neuronal apoptosis was analyzed by the TdT-mediated dUTP nick end labeling (TUNEL) assay. Besides, enzyme-linked immunosorbent assay (ELISA) was utilized to measure the contents of inflammatory factors (IL-1β, IL-6, and TNF-α) and oxidative stress markers (MDA, SOD, and CAT) in the serum of mice. In vitro, the mouse hippocampal neuron (HT22) and microglia (BV2) were treated with uric acid (UA). Flow cytometry was applied to analyze HT22 and BV2 cell apoptosis, and ELISA was conducted to observe neuroinflammation and oxidative stress. In addition, the expression of MyD88, p-NF-κB, NF-κB, NLRP3, ASC and Caspase1 was determined by Western blot. RESULTS METTL3 and miR-124-3p were down-regulated, while the MyD88-NF-κB pathway was activated in the HUA mouse model. UA treatment induced neuronal apoptosis in HT22 and stimulated microglial activation in BV2. Overexpressing METTL3 alleviated HT22 neuronal apoptosis and resisted the release of inflammatory cytokines and oxidative stress mediators in BV2 cells. METTL3 repressed MyD88-NF-κB and NLRP3-ASC-Caspase1 inflammasome. In addition, METTL3 overexpression enhanced miR-124-3p expression, while METTL3 knockdown aggravated HT22 cell apoptosis and BV2 cell overactivation. CONCLUSION METTL3 improves neuronal apoptosis and microglial activation in the HUA model by choking the MyD88/NF-κB pathway and up-regulating miR-124-3p.
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Yu W, Liang Z, Li Q, Liu Y, Liu X, Jiang L, Liu C, Zhang Y, Kang C, Yan J. The pharmacological validation of the Xiao-Jian-Zhong formula against ulcerative colitis by network pharmacology integrated with metabolomics. JOURNAL OF ETHNOPHARMACOLOGY 2022; 298:115647. [PMID: 35987415 DOI: 10.1016/j.jep.2022.115647] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/01/2022] [Revised: 08/08/2022] [Accepted: 08/13/2022] [Indexed: 06/15/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Inflammatory bowel disease (IBD) is pathologically characterized by an immune response accommodative insufficiency and dysbiosis accompanied by persistent epithelial barrier dysfunction, and is divided into ulcerative colitis (UC) and Crohn's disease (CD). Its progression increases the susceptibility to colitis-associated cancer (CAC), as well as other complications. The Xiao-Jian-Zhong (XJZ) formula has a historical application in the clinic to combat gastrointestinal disorders. AIM OF THE STUDY The investigation aimed to explore the molecular and cellular mechanisms of XJZ. MATERIALS AND METHODS Dextran sodium sulfate (DSS) was diluted in drinking water and given to mice for a week to establish murine models of experimental colitis, and the XJZ solution was administered for two weeks. Network pharmacology analysis and weighted gene co-expression network analysis (WGCNA) were utilized to predict the therapeutic role of XJZ against UC and CAC. 16S rRNA sequencing and untargeted metabolomics were conducted utilizing murine feces to examine the changes in the microbiome profile. Biochemical experiments were conducted to confirm the predicted functions. RESULTS XJZ treatment markedly attenuated DSS-induced experimental colitis progression, and the targets were enriched in inflammation, infection, and tumorigenesis, predicted by network pharmacology analysis. Based on The Cancer Genome Atlas (TCGA) database, the XJZ-targets were related to the survival probability in patients with colorectal cancer, underlying a potential therapeutic value in cancer intervention. Moreover, the XJZ therapy successfully rescued the decreased richness and diversity of microbiota, suppressed the potentially pathogenic phenotype of the gut microorganisms, and reversed the declined linoleic acid metabolism and increased cytochrome P450 activity in murine colitis models. Our in-vitro experiments confirmed that the XJZ treatment suppressed Caspase1-dependent pyroptosis and increased peroxisome proliferators-activated receptor-γ(PPAR-γ) expression in the colon, facilitated the alternative activation of macrophages (Mφs), inhibited tumor necrosis factor-α (TNFα)-induced reactive oxygen species (ROS) level in intestinal organoids (IOs), thereby favoring the mucosal healing. CONCLUSION The XJZ formula is efficacious for colitis by a prompt resolution of inflammation and dysbiosis, and by re-establishing a microbiome profile that favors re-epithelization, and prevents carcinogenesis.
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Affiliation(s)
- Wei Yu
- Department of Physiology, Jining Medical University, Jining City, Shandong province, China.
| | - Zhenghao Liang
- Department of Physiology, Jining Medical University, Jining City, Shandong province, China.
| | - Qi Li
- Department of Physiology, Jining Medical University, Jining City, Shandong province, China.
| | - Yanzhi Liu
- Department of Physiology, Jining Medical University, Jining City, Shandong province, China.
| | - Xincheng Liu
- Department of Physiology, Jining Medical University, Jining City, Shandong province, China.
| | - Lu Jiang
- Department of Physiology, Jining Medical University, Jining City, Shandong province, China.
| | - Chen Liu
- Department of Physiology, Jining Medical University, Jining City, Shandong province, China.
| | - Yijia Zhang
- Department of Physiology, Jining Medical University, Jining City, Shandong province, China.
| | - Cai Kang
- Department of Physiology, Jining Medical University, Jining City, Shandong province, China.
| | - Jing Yan
- Department of Physiology, Jining Medical University, Jining City, Shandong province, China.
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Yu W, Li Q, Shao C, Zhang Y, Kang C, Zheng Y, Liu X, Liu X, Yan J. The Cao-Xiang-Wei-Kang formula attenuates the progression of experimental colitis by restoring the homeostasis of the microbiome and suppressing inflammation. Front Pharmacol 2022; 13:946065. [PMID: 36204231 PMCID: PMC9530714 DOI: 10.3389/fphar.2022.946065] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2022] [Accepted: 08/29/2022] [Indexed: 11/13/2022] Open
Abstract
Inflammatory bowel disease (IBD) is pathologically characterized by an immune response accommodative insufficiency and dysbiosis accompanied by persistent epithelial barrier dysfunction. The Cao-Xiang-Wei-Kang (CW) formula has been utilized to treat gastrointestinal disorders in the clinic. The present study was designed to delineate the pharmacological mechanisms of this formula from different aspects of the etiology of ulcerative colitis (UC), a major subtype of IBD. Dextran sodium sulfate (DSS) was given to mice for a week at a concentration of 2%, and the CW solution was administered for 3 weeks. 16S rRNA gene sequencing and untargeted metabolomics were conducted to examine the changes in the microbiome profile, and biochemical experiments were performed to confirm the therapeutic functions predicted by system pharmacology analysis. The CW treatment hampered DSS-induced experimental colitis progression, and the targets were enriched in inflammation, infection, and tumorigenesis, which was corroborated by suppressed caspase 3 (Casp3) and interleukin-1b (IL-1b) and increased cleaved caspase 3 expression and casp-3 activity in the colon samples from colitis mice subjected to the CW therapy. Moreover, the CW therapy rescued the decreased richness and diversity, suppressed the potentially pathogenic phenotype of the gut microorganisms, and reversed the altered linoleic acid metabolism and cytochrome P450 activity in murine colitis models. In our in vitro experiments, the CW administration increased the alternative activation of macrophages (Mφs) and inhibited the tumor necrosis factor-α (TNFα)-induced reactive oxygen species (ROS) level and subsequent death in intestinal organoids (IOs). We propose that the CW formula alleviates the progression of murine colitis by suppressing inflammation, promoting mucosal healing, and re-establishing a microbiome profile that favors re-epithelization.
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Validation of the Anticolitis Efficacy of the Jian-Wei-Yu-Yang Formula. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE 2022; 2022:9110704. [PMID: 36091591 PMCID: PMC9451982 DOI: 10.1155/2022/9110704] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/28/2022] [Revised: 07/05/2022] [Accepted: 07/14/2022] [Indexed: 11/18/2022]
Abstract
Background Inflammatory bowel disease (IBD) is a major cause of morbidity and mortality due to its repetitive remission and relapse. The Jian-Wei-Yu-Yang (JW) formula has a historical application in the clinic to combat gastrointestinal disorders. The investigation aimed to explore the molecular and cellular mechanisms of JW. Methods 2% dextran sodium sulfate (DSS) was diluted in drinking water and given to mice for 5 days to establish murine models of experimental colitis, and different doses of JW solution were administered for 14 days. Network pharmacology analysis and weighted gene co-expression network analysis (WGCNA) were utilized to predict the therapeutic role of JW against experimental colitis and colitis-associated colorectal cancer (CAC). 16S rRNA sequencing and untargeted metabolomics were conducted using murine feces. Western blotting, immunocytochemistry, and wound healing experiments were performed to confirm the molecular mechanisms. Results (1) Liquid chromatography with mass spectrometry was utilized to confirm the validity of the JW formula. The high dose of JW treatment markedly attenuated DSS-induced experimental colitis progression, and the targets were enriched in inflammation, infection, and tumorigenesis. (2) The JW targets were related to the survival probability in patients with colorectal cancer, underlying a potential therapeutic value in CRC intervention. (3) Moreover, the JW therapy successfully rescued the decreased richness and diversity of microbiota, suppressed the potentially pathogenic phenotype of the gut microorganisms, and increased cytochrome P450 activity in murine colitis models. (4) Our in vitro experiments confirmed that the JW treatment suppressed caspase3-dependent pyroptosis, hypoxia-inducible factor 1α (HIF1α), and interleukin-1b (IL-1b) in the colon; facilitated the alternative activation of macrophages (Mφs); and inhibited tumor necrosis factor-α (TNFα)-induced reactive oxygen species (ROS) level in intestinal organoids (IOs). Conclusion The JW capsule attenuated the progression of murine colitis by a prompt resolution of inflammation and bloody stool and by re-establishing a microbiome profile that favors re-epithelization and prevents carcinogenesis.
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Takeda T, Yamano S, Goto Y, Hirai S, Furukawa Y, Kikuchi Y, Misumi K, Suzuki M, Takanobu K, Senoh H, Saito M, Kondo H, Daghlian G, Hong YK, Yoshimatsu Y, Hirashima M, Kobashi Y, Okamoto K, Kishimoto T, Umeda Y. Dose-response relationship of pulmonary disorders by inhalation exposure to cross-linked water-soluble acrylic acid polymers in F344 rats. Part Fibre Toxicol 2022; 19:27. [PMID: 35395797 PMCID: PMC8994297 DOI: 10.1186/s12989-022-00468-9] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2022] [Accepted: 03/30/2022] [Indexed: 11/24/2022] Open
Abstract
BACKGROUND In Japan, six workers handling cross-linked water-soluble acrylic acid polymer (CWAAP) at a chemical plant suffered from lung diseases, including fibrosis, interstitial pneumonia, emphysema, and pneumothorax. We recently demonstrated that inhalation of CWAAP-A, one type of CWAAP, causes pulmonary disorders in rats. It is important to investigate dose-response relationships and recoverability from exposure to CWAAPs for establishing occupational health guidelines, such as setting threshold limit value for CWAAPs in the workplace. METHODS Male and female F344 rats were exposed to 0.3, 1, 3, or 10 mg/m3 CWAAP-A for 6 h/day, 5 days/week for 13 weeks using a whole-body inhalation exposure system. At 1 h, 4 weeks, and 13 weeks after the last exposure the rats were euthanized and blood, bronchoalveolar lavage fluid, and all tissues including lungs and mediastinal lymph nodes were collected and subjected to biological and histopathological analyses. In a second experiment, male rats were pre-treated with clodronate liposome or polymorphonuclear leukocyte-neutralizing antibody to deplete macrophages or neutrophils, respectively, and exposed to CWAAP-A for 6 h/day for 2 days. RESULTS CWAAP-A exposure damaged only the alveoli. The lowest observed adverse effect concentration (LOAEC) was 1 mg/m3 and the no observed adverse effect concentration (NOAEC) was 0.3 mg/m3. Rats of both sexes were able to recover from the tissue damage caused by 13 weeks exposure to 1 mg/m3 CWAAP-A. In contrast, tissue damage caused by exposure to 3 and 10 mg/m3 was irreversible due to the development of interstitial lung lesions. There was a gender difference in the recovery from CWAAP-A induced pulmonary disorders, with females recovering less than males. Finally, acute lung effects caused by CWAAP-A were significantly reduced by depletion of alveolar macrophages. CONCLUSIONS Pulmonary damage caused by inhalation exposure to CWAAP-A was dose-dependent, specific to the lung and lymph nodes, and acute lung damage was ameliorated by depleting macrophages in the lungs. CWAAP-A had both a LOAEC and a NOAEC, and tissue damage caused by exposure to 1 mg/m3 CWAAP-A was reversible: recovery in female rats was less than for males. These findings indicate that concentration limits for CWAAPs in the workplace can be determined.
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Affiliation(s)
- Tomoki Takeda
- Japan Bioassay Research Center, Japan Organization of Occupational Health and Safety, Hadano, Kanagawa, 257-0015, Japan.
| | - Shotaro Yamano
- Japan Bioassay Research Center, Japan Organization of Occupational Health and Safety, Hadano, Kanagawa, 257-0015, Japan.
| | - Yuko Goto
- Japan Bioassay Research Center, Japan Organization of Occupational Health and Safety, Hadano, Kanagawa, 257-0015, Japan
| | - Shigeyuki Hirai
- Japan Bioassay Research Center, Japan Organization of Occupational Health and Safety, Hadano, Kanagawa, 257-0015, Japan
| | - Yusuke Furukawa
- Japan Bioassay Research Center, Japan Organization of Occupational Health and Safety, Hadano, Kanagawa, 257-0015, Japan
| | - Yoshinori Kikuchi
- Japan Bioassay Research Center, Japan Organization of Occupational Health and Safety, Hadano, Kanagawa, 257-0015, Japan
| | - Kyohei Misumi
- Japan Bioassay Research Center, Japan Organization of Occupational Health and Safety, Hadano, Kanagawa, 257-0015, Japan
| | - Masaaki Suzuki
- Japan Bioassay Research Center, Japan Organization of Occupational Health and Safety, Hadano, Kanagawa, 257-0015, Japan
| | - Kenji Takanobu
- Japan Bioassay Research Center, Japan Organization of Occupational Health and Safety, Hadano, Kanagawa, 257-0015, Japan
| | - Hideki Senoh
- Japan Bioassay Research Center, Japan Organization of Occupational Health and Safety, Hadano, Kanagawa, 257-0015, Japan
| | - Misae Saito
- Japan Bioassay Research Center, Japan Organization of Occupational Health and Safety, Hadano, Kanagawa, 257-0015, Japan
| | - Hitomi Kondo
- Japan Bioassay Research Center, Japan Organization of Occupational Health and Safety, Hadano, Kanagawa, 257-0015, Japan
| | - George Daghlian
- Department of Surgery, Norris Comprehensive Cancer Center, Keck School of Medicine, University of Southern California, Los Angeles, CA, USA
| | - Young-Kwon Hong
- Department of Surgery, Norris Comprehensive Cancer Center, Keck School of Medicine, University of Southern California, Los Angeles, CA, USA
| | - Yasuhiro Yoshimatsu
- Division of Pharmacology, Niigata University Graduate School of Medical and Dental Sciences, Niigata, 951-8510, Japan
| | - Masanori Hirashima
- Division of Pharmacology, Niigata University Graduate School of Medical and Dental Sciences, Niigata, 951-8510, Japan
| | - Yoichiro Kobashi
- Department of Pathology, Tenri Hospital, Tenri, Nara, 632-8552, Japan
| | - Kenzo Okamoto
- Department of Pathology, Hokkaido Chuo Rosai Hospital, Japan Organization of Occupational Health and Safety, Iwamizawa, Hokkaido, 068-0004, Japan
| | - Takumi Kishimoto
- Director of Research and Training Center for Asbestos-Related Diseases, Okayama, Okayama, 702-8055, Japan
| | - Yumi Umeda
- Japan Bioassay Research Center, Japan Organization of Occupational Health and Safety, Hadano, Kanagawa, 257-0015, Japan
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Liu N, Guan Y, Zhou C, Wang Y, Ma Z, Yao S. Pulmonary and Systemic Toxicity in a Rat Model of Pulmonary Alveolar Proteinosis Induced by Indium-Tin Oxide Nanoparticles. Int J Nanomedicine 2022; 17:713-731. [PMID: 35210771 PMCID: PMC8860399 DOI: 10.2147/ijn.s338955] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2021] [Accepted: 02/01/2022] [Indexed: 11/23/2022] Open
Affiliation(s)
- Nan Liu
- School of Public Health, North China University of Science and Technology, Tangshan, 063210, Hebei, People’s Republic of China
| | - Yi Guan
- School of Public Health, North China University of Science and Technology, Tangshan, 063210, Hebei, People’s Republic of China
| | - Chunling Zhou
- Baoding Center for Disease Control and Prevention, Baoding, 071030, Hebei, People’s Republic of China
| | - Yongheng Wang
- School of Public Health, North China University of Science and Technology, Tangshan, 063210, Hebei, People’s Republic of China
| | - Zhanfei Ma
- Institute of Industrial Hygiene of Ordnance Industry, Xian, 710065, Shanxi, People’s Republic of China
| | - Sanqiao Yao
- School of Public Health, North China University of Science and Technology, Tangshan, 063210, Hebei, People’s Republic of China
- XinXiang Medical University, Xinxiang, 453003, Henan, People’s Republic of China
- Correspondence: Sanqiao Yao, North China University of Science and Technology, Bohai Avenue 21, Tangshan, 063210, Hebei, People’s Republic of China, Fax +86-315-8805583, Email
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Electroacupuncture Attenuated Anxiety and Depression-Like Behavior via Inhibition of Hippocampal Inflammatory Response and Metabolic Disorders in TNBS-Induced IBD Rats. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2022; 2022:8295580. [PMID: 35087621 PMCID: PMC8789424 DOI: 10.1155/2022/8295580] [Citation(s) in RCA: 20] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/13/2021] [Accepted: 12/14/2021] [Indexed: 02/07/2023]
Abstract
This study was designed to explore the potential mechanisms of electroacupuncture (EA) in treating inflammatory bowel disease- (IBD-) related anxiety and mood disorders. A colitis model was induced in rats with 2, 4, 6-trinitrohydrosulfonic acid (TNBS), followed by ST36 and SP6 targeted therapy by EA or sham EA treatment. The elevated plus maze (EPM) and open-field test (OFT) were performed to assess the state of anxiety and depression-like behavior. Tests were carried out by 16S rDNA amplification sequence, 1H nuclear magnetic resonance (1H NMR) spectroscopy, immunofluorescence staining, and enzyme-linked immunosorbent assay (ELISA). The analyses detailed metabolic alterations and the Toll-like receptor 4 (TLR4) signaling pathway/NOD-like receptor protein 3 (NLRP3) inflammasome in rats' hippocampal region. Furthermore, the activity of the hypothalamic-pituitary adrenal (HPA) axis and gut microbiome was assessed. As a result of treatment, EA significantly improved in the behavioral tests and altered the composition of the gut microbiome through a significant increase in the density of short chain fatty acids (SCFAs) producers mainly including Ruminococcaceae, Phascolarctobacterium, and Akkermansiaceae. EA upregulated the metabolites of the hippocampus mainly containing l-glutamine and gamma-aminobutyric acid (GABA), as well as ZO-1 expression. Whereas the treatment blocked the TLR4/nuclear factor- kappa B (NF-κB) signaling pathways and NLRP3 inflammasomes, along with downregulating the interleukin- (IL-) 1β level. The hyperactivity of the HPA axis was also diminished. In conclusion, EA at ST36 and SP6 attenuated anxiety and depression-like behavior in colitis model rats through their effects on the gut microbiome by modulating the hippocampal inflammatory response and metabolic disorders, as well as the HPA axis. This study provides evidence for clinical application of EA to serve as an adjunctive treatment for IBD-related anxiety and depression.
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Liu H, Zhao Y, Yang Y, Huang W, Chao L. GRIM19 downregulation-induced pyroptosis of macrophages through NLRP3 pathway in adenomyosis. Reprod Biomed Online 2021; 44:211-219. [PMID: 34906422 DOI: 10.1016/j.rbmo.2021.10.012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2021] [Revised: 09/29/2021] [Accepted: 10/14/2021] [Indexed: 10/20/2022]
Abstract
RESEARCH QUESTION Does the absence of GRIM19 affect pyroptosis of macrophages? Is the release of IL-1β caused by pyroptosis a relevant factor in the regulation of adenomyosis progression? DESIGN Endometrial tissues were collected from patients with (n = 12) and without (n = 12) adenomyosis. GRIM19 expression of adenomyosis tissues was analysed by western blot and real-time polymerase chain reaction (RT-PCR). In GRIM19 knockdown macrophages, pyroptosis-related factors expressions were also measured by western blot and RT-PCR. The human endometrial stromal cells (HESC) were co-cultured with GRIM19-depleted macrophages and IL-1β neutralizing antibody to detect the effects of pyroptosis of macrophages on apoptosis, proliferation and migration of HESC. RESULTS The expression of GRIM19 was significantly lower in adenomyosis (P = 0.0002). In THP-1-derived macrophages, the expression of NLRP3 (P < 0.0001), ASC (P = 0.0176), caspase-1 (P = 0.0368), GSDMD (P = 0.0453) and IL-1β (P = 0.0208) are increased after downregulation of GRIM19. GRIM19 knockdown induced the release of IL-1β (P = 0.0195) in THP-1-derived macrophages. The apoptosis of HESC co-cultured with GRIM19 knockdown macrophages was significantly inhibited (P < 0.0001), the proliferation (P = 0.0254) and migration (P < 0.0001) were markedly promoted. Existence of IL-1β neutralizing antibody in supernatants recovered the effects (P < 0.0001) of GRIM19 knockdown macrophages on HESC. CONCLUSIONS GRIM19 downregulation induces pyroptosis of macrophages through NLRP3 pathway, increases the secretion of IL-1β and promotes adenomyosis progression.
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Affiliation(s)
- Haoran Liu
- Center for Reproductive Medicine, Department of Obstetrics and Gynecology, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan 250012, PR China
| | - Yue Zhao
- Center for Reproductive Medicine, Department of Obstetrics and Gynecology, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan 250012, PR China
| | - Yang Yang
- Center for Reproductive Medicine, Department of Obstetrics and Gynecology, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan 250012, PR China
| | - Wenqian Huang
- Center for Reproductive Medicine, Department of Obstetrics and Gynecology, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan 250012, PR China
| | - Lan Chao
- Center for Reproductive Medicine, Department of Obstetrics and Gynecology, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan 250012, PR China.
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Yuan C, Yao Y, Liu T, Jin Y, Yang C, Loh XJ, Li Z. Research Progress on Natural Compounds Exerting an Antidepressant Effect through Anti-inflammatory. Curr Med Chem 2021; 29:934-956. [PMID: 34420503 DOI: 10.2174/0929867328666210820115259] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2021] [Revised: 06/18/2021] [Accepted: 06/25/2021] [Indexed: 11/22/2022]
Abstract
Depression is a common mental illness that belongs to the category of emotional disorders that causes serious damage to the health and life of patients, while inflammation is considered to be one of the important factors that causes depression. In this case, it might be important to explore the possible therapeutic approach by using natural compounds exerting an anti-inflammatory and antidepressant effect, which it filed has not been systematically reviewed recently. Hence, this review aims to systematically sort the literature related to the mechanism of exerting an antidepressant effect through anti-inflammatory actions, and to summarize the related natural products in the past 20 years, in terms of a number of inflammatory related pathways (i.e., the protein kinase B (Akt) pathway, monoamine neurotransmitters (5-hydroxytryptamine and norepinephrine) (5-HT and NE), the nod-like receptor protein-3 (NLRP3) inflammasome, proinflammatory cytokines, neurotrophins, or cytokine-signaling pathways), which might provide a useful reference for the potential treatment of depression.
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Affiliation(s)
- Caixia Yuan
- School of Pharmaceutical Sciences, Xiamen University, Xiamen, 361102. China
| | - Yucen Yao
- College Pharmacy, Jiamusi University, 258 Xuefu Street, Jiamusi, Heilongjiang, 154007. China
| | - Tao Liu
- College Pharmacy, Harbin University of commerce, 1Xuehai Street, Harbin, Heilongjiang, 150028. China
| | - Ying Jin
- Department of Cardiology, The First Affiliated Hospital of Xiamen University, Xiamen, 361003. China
| | - Chunrong Yang
- College Pharmacy, Jiamusi University, 258 Xuefu Street, Jiamusi, Heilongjiang, 154007, China. China
| | - Xian Jun Loh
- Institute of Materials Research and Engineering, A*STAR (Agency for Science, Technology and Research), 2 Fusionopolis Way, Innovis, #08-03, Singapore 138634. Singapore
| | - Zibiao Li
- Institute of Materials Research and Engineering, A*STAR (Agency for Science, Technology and Research), 2 Fusionopolis Way, Innovis, #08-03, Singapore 138634. Singapore
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Zhang Q, Yu J, Chen Q, Yan H, Du H, Luo W. Regulation of pathophysiological and tissue regenerative functions of MSCs mediated via the WNT signaling pathway (Review). Mol Med Rep 2021; 24:648. [PMID: 34278470 PMCID: PMC8299209 DOI: 10.3892/mmr.2021.12287] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2020] [Accepted: 06/22/2021] [Indexed: 12/18/2022] Open
Abstract
Tissues have remarkable natural capabilities to regenerate for the purpose of physiological turnover and repair of damage. Adult mesenchymal stem cells (MSCs) are well known for their unique self-renewal ability, pluripotency, homing potential, paracrine effects and immunomodulation. Advanced research of the unique properties of MSCs have opened up new horizons for tissue regenerative therapies. However, certain drawbacks of the application of MSCs, such as the low survival rate of transplanted MSCs, unsatisfactory efficiency and even failure to regenerate under an unbalanced microenvironment, are concerning with regards to their wider therapeutic applications. The activity of stem cells is mainly regulated by the anatomical niche; where they are placed during their clinical and therapeutic applications. Crosstalk between various niche signals maintains MSCs in homeostasis, in which the WNT signaling pathway plays vital roles. Several external or internal stimuli have been reported to interrupt the normal bioactivity of stem cells. The irreversible tissue loss that occurs during infection at the site of tissue grafting suggests an inhibitory effect mediated by microbial infections within MSC niches. In addition, MSC-seeded tissue engineering success is difficult in various tissues, when sites of injury are under the effects of a severe infection despite the immunomodulatory properties of MSCs. In the present review, the current understanding of the way in which WNT signaling regulates MSC activity modification under physiological and pathological conditions was summarized. An effort was also made to illustrate parts of the underlying mechanism, including the inflammatory factors and their interactions with the regulatory WNT signaling pathway, aiming to promote the clinical translation of MSC-based therapy.
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Affiliation(s)
- Qingtao Zhang
- Department of Stomatology, The Second Affiliated Hospital of Zhejiang Chinese Medical University, Hangzhou, Zhejiang 310085, P.R. China
| | - Jian Yu
- Department of Stomatology, Zhejiang Hospital, Hangzhou, Zhejiang 310030, P.R. China
| | - Qiuqiu Chen
- Department of Stomatology, The Second Affiliated Hospital of Zhejiang Chinese Medical University, Hangzhou, Zhejiang 310085, P.R. China
| | - Honghai Yan
- Department of Stomatology, The Second Affiliated Hospital of Zhejiang Chinese Medical University, Hangzhou, Zhejiang 310085, P.R. China
| | - Hongjiang Du
- Department of Stomatology, The Second Affiliated Hospital of Zhejiang Chinese Medical University, Hangzhou, Zhejiang 310085, P.R. China
| | - Wenjing Luo
- Department of General Dentistry, Boston University Henry M. Goldman School of Dental Medicine, Boston, MA 02118, USA
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Lv H, Yuan X, Zhang J, Lu T, Yao J, Zheng J, Cai J, Xiao J, Chen H, Xie S, Ruan Y, An Y, Sui X, Yi H. Heat shock preconditioning mesenchymal stem cells attenuate acute lung injury via reducing NLRP3 inflammasome activation in macrophages. Stem Cell Res Ther 2021; 12:290. [PMID: 34001255 PMCID: PMC8127288 DOI: 10.1186/s13287-021-02328-3] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/01/2021] [Accepted: 04/07/2021] [Indexed: 02/06/2023] Open
Abstract
OBJECTIVES Acute lung injury (ALI) remains a common cause of morbidity and mortality worldwide, and to date, there is no effective treatment for ALI. Previous studies have revealed that topical administration of mesenchymal stem cells (MSCs) can attenuate the pathological changes in experimental acute lung injury. Heat shock (HS) pretreatment has been identified as a method to enhance the survival and function of cells. The present study aimed to assess whether HS-pretreated MSCs could enhance immunomodulation and recovery from ALI. MATERIALS AND METHODS HS pretreatment was performed at 42 °C for 1 h, and changes in biological characteristics and secretion functions were detected. In an in vivo mouse model of ALI, we intranasally administered pretreated umbilical cord-derived MSCs (UC-MSCs), confirmed their therapeutic effects, and detected the phenotypes of the macrophages in bronchoalveolar lavage fluid (BALF). To elucidate the underlying mechanisms, we cocultured pretreated UC-MSCs with macrophages in vitro, and the expression levels of inflammasome-related proteins in the macrophages were assessed. RESULTS The data showed that UC-MSCs did not exhibit significant changes in viability or biological characteristics after HS pretreatment. The administration of HS-pretreated UC-MSCs to the ALI model improved the pathological changes and lung damage-related indexes, reduced the proinflammatory cytokine levels, and modulated the M1/M2 macrophage balance. Mechanistically, both the in vivo and in vitro studies demonstrated that HS pretreatment enhanced the protein level of HSP70 in UC-MSCs, which negatively modulated NLR family pyrin domain containing 3 (NLRP3) inflammasome activation in alveolar macrophages. These effects were partially reversed by knocking down HSP70 expression. CONCLUSION HS pretreatment can enhance the beneficial effects of UC-MSCs in inhibiting NLRP3 inflammasome activation in macrophages during ALI. The mechanism may be related to the upregulated expression of HSP70.
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Affiliation(s)
- Haijin Lv
- Department of Surgical Intensive Care Unit, the Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, 510630, Guangdong Province, China.,Guangdong Key Laboratory of Liver Disease Research, Key Laboratory of Liver Disease Biotherapy and Translational Medicine of Guangdong Higher Education Institutes, the Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, 510630, China
| | - Xiaofeng Yuan
- Guangdong Key Laboratory of Liver Disease Research, Key Laboratory of Liver Disease Biotherapy and Translational Medicine of Guangdong Higher Education Institutes, the Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, 510630, China.,Department of General Intensive Care Unit, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, 510630, China
| | - Jiebin Zhang
- Guangdong Key Laboratory of Liver Disease Research, Key Laboratory of Liver Disease Biotherapy and Translational Medicine of Guangdong Higher Education Institutes, the Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, 510630, China.,Department of Hepatic Surgery and Liver Transplantation Center, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, 510630, China
| | - Tongyu Lu
- Guangdong Key Laboratory of Liver Disease Research, Key Laboratory of Liver Disease Biotherapy and Translational Medicine of Guangdong Higher Education Institutes, the Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, 510630, China.,Department of Hepatic Surgery and Liver Transplantation Center, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, 510630, China
| | - Jia Yao
- Guangdong Key Laboratory of Liver Disease Research, Key Laboratory of Liver Disease Biotherapy and Translational Medicine of Guangdong Higher Education Institutes, the Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, 510630, China.,Department of Hepatic Surgery and Liver Transplantation Center, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, 510630, China
| | - Jun Zheng
- Guangdong Key Laboratory of Liver Disease Research, Key Laboratory of Liver Disease Biotherapy and Translational Medicine of Guangdong Higher Education Institutes, the Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, 510630, China.,Department of Hepatic Surgery and Liver Transplantation Center, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, 510630, China
| | - Jianye Cai
- Guangdong Key Laboratory of Liver Disease Research, Key Laboratory of Liver Disease Biotherapy and Translational Medicine of Guangdong Higher Education Institutes, the Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, 510630, China.,Department of Hepatic Surgery and Liver Transplantation Center, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, 510630, China
| | - Jiaqi Xiao
- Guangdong Key Laboratory of Liver Disease Research, Key Laboratory of Liver Disease Biotherapy and Translational Medicine of Guangdong Higher Education Institutes, the Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, 510630, China.,Department of Hepatic Surgery and Liver Transplantation Center, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, 510630, China
| | - Haitian Chen
- Guangdong Key Laboratory of Liver Disease Research, Key Laboratory of Liver Disease Biotherapy and Translational Medicine of Guangdong Higher Education Institutes, the Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, 510630, China.,Department of Hepatic Surgery and Liver Transplantation Center, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, 510630, China
| | - Shujuan Xie
- Vaccine Research Institute of Sun Yat-sen University, Biotherapy Center, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Ying Ruan
- Department of Thyroid and Breast Surgery, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, 510630, China
| | - Yuling An
- Department of Surgical Intensive Care Unit, the Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, 510630, Guangdong Province, China. .,Guangdong Key Laboratory of Liver Disease Research, Key Laboratory of Liver Disease Biotherapy and Translational Medicine of Guangdong Higher Education Institutes, the Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, 510630, China.
| | - Xin Sui
- Department of Surgical Intensive Care Unit, the Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, 510630, Guangdong Province, China. .,Guangdong Key Laboratory of Liver Disease Research, Key Laboratory of Liver Disease Biotherapy and Translational Medicine of Guangdong Higher Education Institutes, the Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, 510630, China.
| | - Huimin Yi
- Department of Surgical Intensive Care Unit, the Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, 510630, Guangdong Province, China. .,Guangdong Key Laboratory of Liver Disease Research, Key Laboratory of Liver Disease Biotherapy and Translational Medicine of Guangdong Higher Education Institutes, the Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, 510630, China.
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21
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Zhang C, Wang Y, Hu C, Sun K, Yu D, Tian S. Plantamajoside Ameliorates Inflammatory Response of Chondrocytes via Regulating NF- κB/NLRP3 Inflammasome Pathway. J BIOMATER TISS ENG 2021. [DOI: 10.1166/jbt.2021.2634] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
The damage of articular cartilage in osteoarthritis involves the oxidative stress and inflammation. The aim of the present study was to explore the role of plantamajoside (PM) in chondrocytes and elucidate the underlying mechanism. The cell viability following treatment with PM or lipopolysac-charide
(LPS) was assessed by cell counting kit-8 (CCK-8). Enzyme-Linked Immunosorbent Assay (ELISA) was supplied to determine the levels of pro-inflammatory cytokines. Moreover, the oxidative stress-related markers were evaluated via assay kits. TUNEL assay was employed to stain the apoptotic cells.
The components of nuclear factor-κB (NF-κB) pathway and NLRP3 inflammasome were estimated by western blot analysis. LPS-insulted cell viability of ATDC5 was restored by PM. PM alleviated the inflammatory response and oxidative stress of ATDC5 cells induced by LPS.
Furthermore, it was found that the apoptotic cells were reduced following PM treatment. The protein levels of NF-κB, IκB kinase β (IKKβ) and NLRP3 inflammasome were decreased by PM. These results suggested that PM protected the ATDC5 cells
from LPS stimulation, alleviated the inflammatory response may through regulating the NF-κB and NLRP3 inflammasome.
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Affiliation(s)
- Chi Zhang
- Department of Orthopaedic Surgery, The Affiliated Hospital of Qingdao University, Qingdao, Shandong, 266555, P. R. China
| | - Yuanhe Wang
- Department of Orthopaedic Surgery, The Affiliated Hospital of Qingdao University, Qingdao, Shandong, 266555, P. R. China
| | - Chuan Hu
- Department of Orthopaedic Surgery, The Affiliated Hospital of Qingdao University, Qingdao, Shandong, 266555, P. R. China
| | - Kang Sun
- Department of Orthopaedic Surgery, The Affiliated Hospital of Qingdao University, Qingdao, Shandong, 266555, P. R. China
| | - Dingzhu Yu
- Department of Orthopaedic Surgery, The Affiliated Hospital of Qingdao University, Qingdao, Shandong, 266555, P. R. China
| | - Shaoqi Tian
- Department of Orthopaedic Surgery, The Affiliated Hospital of Qingdao University, Qingdao, Shandong, 266555, P. R. China
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22
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Xia S, Yang P, Li F, Yu Q, Kuang W, Zhu Y, Lu J, Wu H, Li L, Huang H. Chaihu-Longgu-Muli Decoction exerts an antiepileptic effect in rats by improving pyroptosis in hippocampal neurons. JOURNAL OF ETHNOPHARMACOLOGY 2021; 270:113794. [PMID: 33422654 DOI: 10.1016/j.jep.2021.113794] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/02/2020] [Revised: 09/11/2020] [Accepted: 01/02/2021] [Indexed: 06/12/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Chaihu-Longgu-Muli Decoction (CLMD) is a classic prescription created by Zhong-jing Zhang, a famous ancient Chinese medical scientist, to harmonize uncontrollable body activities and calm the minds. Now Traditional Chinese Medicine (TCM) physicians often apply it to treat psychiatric diseases such as epilepsy. AIM OF THE STUDY This study investigated the mechanism of the effect of Chaihu-Longgu-Muli Decoction (CLMD) on hippocampal neurons pyroptosis in rats with Temporal Lobe Epilepsy (TLE). MATERIALS AND METHODS The lithium chloride-pilocarpine-induced TLE rat model was established. The behavioral testing was performed and, the expression of IL-1β and TNF-α in serum was detected by ELISA, qRT-PCR was used to detect the mRNA expression of NLRP3, Caspase-1, IL-1β and TNF-α in hippocampus. The expression of NLRP3 and Caspase-1 in hippocampal dentate gyrus was detected by immunofluorescence assay. RESULTS CLMD could significantly suppress the frequency and duration time of epileptic seizures, reduce the expression of NLRP3, Caspase-1 TNF-α and IL-1β. CONCLUSIONS CLMD exerted an obvious antiepileptic effect by improving pyroptosis in hippocampal neurons of TLE rats.
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MESH Headings
- Animals
- Anticonvulsants/pharmacology
- Anticonvulsants/therapeutic use
- Cytoskeletal Proteins/genetics
- Cytoskeletal Proteins/metabolism
- Disease Models, Animal
- Drugs, Chinese Herbal/chemistry
- Drugs, Chinese Herbal/pharmacology
- Drugs, Chinese Herbal/therapeutic use
- Epilepsy, Temporal Lobe/chemically induced
- Epilepsy, Temporal Lobe/drug therapy
- Epilepsy, Temporal Lobe/metabolism
- Hippocampus/drug effects
- Hippocampus/metabolism
- Interleukin-1beta/genetics
- Interleukin-1beta/metabolism
- Lithium Chloride/toxicity
- Male
- NLR Family, Pyrin Domain-Containing 3 Protein/genetics
- NLR Family, Pyrin Domain-Containing 3 Protein/metabolism
- Neurons/drug effects
- Neurons/metabolism
- Pilocarpine/toxicity
- Pyroptosis/drug effects
- Rats, Sprague-Dawley
- Tumor Necrosis Factor-alpha/genetics
- Tumor Necrosis Factor-alpha/metabolism
- Rats
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Affiliation(s)
- Shuaishuai Xia
- Provincial Key Laboratory of TCM Diagnostics, Hunan University of Chinese Medicine, Changsha, Hunan Province, 410208, China; Key Laboratory of TCM Heart and Lung Syndrome Differentiation & Medicated Diet and Dietotherapy, Hunan University of Chinese Medicine, Changsha, Hunan Province, 410208, China
| | - Ping Yang
- Department of Psychiatry, Hunan Brain Hospital, Clinical Medical School, Hunan University of Chinese Medicine, Changsha, Hunan Province, 410007, China
| | - Feng Li
- Key Laboratory of TCM Heart and Lung Syndrome Differentiation & Medicated Diet and Dietotherapy, Hunan University of Chinese Medicine, Changsha, Hunan Province, 410208, China; School of Dentistry, University of California Los Angeles, CA, 90095, United States
| | - Qian Yu
- Provincial Key Laboratory of TCM Diagnostics, Hunan University of Chinese Medicine, Changsha, Hunan Province, 410208, China; Key Laboratory of TCM Heart and Lung Syndrome Differentiation & Medicated Diet and Dietotherapy, Hunan University of Chinese Medicine, Changsha, Hunan Province, 410208, China
| | - Weiping Kuang
- Department of Psychiatry, Hunan Brain Hospital, Clinical Medical School, Hunan University of Chinese Medicine, Changsha, Hunan Province, 410007, China
| | - Yong Zhu
- Department of Psychiatry, Hunan Brain Hospital, Clinical Medical School, Hunan University of Chinese Medicine, Changsha, Hunan Province, 410007, China
| | - Jun Lu
- Department of Psychiatry, Hunan Brain Hospital, Clinical Medical School, Hunan University of Chinese Medicine, Changsha, Hunan Province, 410007, China
| | - Huaying Wu
- Provincial Key Laboratory of TCM Diagnostics, Hunan University of Chinese Medicine, Changsha, Hunan Province, 410208, China; Key Laboratory of TCM Heart and Lung Syndrome Differentiation & Medicated Diet and Dietotherapy, Hunan University of Chinese Medicine, Changsha, Hunan Province, 410208, China
| | - Liang Li
- Provincial Key Laboratory of TCM Diagnostics, Hunan University of Chinese Medicine, Changsha, Hunan Province, 410208, China; Key Laboratory of TCM Heart and Lung Syndrome Differentiation & Medicated Diet and Dietotherapy, Hunan University of Chinese Medicine, Changsha, Hunan Province, 410208, China.
| | - Huiyong Huang
- Provincial Key Laboratory of TCM Diagnostics, Hunan University of Chinese Medicine, Changsha, Hunan Province, 410208, China; Key Laboratory of TCM Heart and Lung Syndrome Differentiation & Medicated Diet and Dietotherapy, Hunan University of Chinese Medicine, Changsha, Hunan Province, 410208, China.
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23
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Han W, El Botty R, Montaudon E, Malaquin L, Deschaseaux F, Espagnolle N, Marangoni E, Cottu P, Zalcman G, Parrini MC, Assayag F, Sensebe L, Silberzan P, Vincent-Salomon A, Dutertre G, Roman-Roman S, Descroix S, Camonis J. In vitro bone metastasis dwelling in a 3D bioengineered niche. Biomaterials 2020; 269:120624. [PMID: 33421710 DOI: 10.1016/j.biomaterials.2020.120624] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2020] [Revised: 12/06/2020] [Accepted: 12/18/2020] [Indexed: 12/28/2022]
Abstract
Bone is the most frequent metastasis site for breast cancer. As well as dramatically increasing disease burden, bone metastases are also an indicator of poor prognosis. One of the main challenges in investigating bone metastasis in breast cancer is engineering in vitro models that replicate the features of in vivo bone environments. Such in vitro models ideally enable the biology of the metastatic cells to mimic their in vivo behavior as closely as possible. Here, taking benefit of cutting-edge technologies both in microfabrication and cancer cell biology, we have developed an in vitro breast cancer bone-metastasis model. To do so we first 3D printed a bone scaffold that reproduces the trabecular architecture and that can be conditioned with osteoblast-like cells, a collagen matrix, and mineralized calcium. We thus demonstrated that this device offers an adequate soil to seed primary breast cancer bone metastatic cells. In particular, patient-derived xenografts being considered as a better approach than cell lines to achieve clinically relevant results, we demonstrate the ability of this biomimetic bone niche model to host patient-derived xenografted metastatic breast cancer cells. These patient-derived xenograft cells show a long-term survival in the bone model and maintain their cycling propensity, and exhibit the same modulated drug response as in vivo. This experimental system enables access to the idiosyncratic features of the bone microenvironment and cancer bone metastasis, which has implications for drug testing.
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Affiliation(s)
- Weijing Han
- Institut Curie, Centre de Recherche, Paris Sciences et Lettres Research University, 75005, Paris, France; ART Group, Inserm U830, 75005, Paris, France; Laboratoire PhysicoChimie Curie, Institut Curie, PSL Research University - Sorbonne Université - CNRS. Equipe Labellisée Ligue Contre le Cancer; 75005, Paris, France
| | - Rania El Botty
- Laboratory of Preclinical Investigation, Translational Research Department, Institut Curie, PSL Research University, 75005, Paris, France
| | - Elodie Montaudon
- Laboratory of Preclinical Investigation, Translational Research Department, Institut Curie, PSL Research University, 75005, Paris, France
| | - Laurent Malaquin
- LAAS-CNRS, Université de Toulouse, CNRS, F-31400, Toulouse, France
| | - Frederic Deschaseaux
- STROMALab, Etablissement Français Du Sang-Occitanie (EFS), Inserm 1031, University of Toulouse, ERL5311 CNRS, National Veterinary School of Toulouse (ENVT), Toulouse, France
| | - Nicolas Espagnolle
- STROMALab, Etablissement Français Du Sang-Occitanie (EFS), Inserm 1031, University of Toulouse, ERL5311 CNRS, National Veterinary School of Toulouse (ENVT), Toulouse, France
| | - Elisabetta Marangoni
- Laboratory of Preclinical Investigation, Translational Research Department, Institut Curie, PSL Research University, 75005, Paris, France
| | - Paul Cottu
- Department of Medical Oncology, Institut Curie and Paris Sciences et Lettres Research University, 75005, Paris, France
| | - Gérard Zalcman
- Institut Curie, Centre de Recherche, Paris Sciences et Lettres Research University, 75005, Paris, France; ART Group, Inserm U830, 75005, Paris, France; Thoracic Oncology Department and Early Phase Unit CIC-1425, Hôpital Bichat, AP-HP, Université de Paris, 75018, Paris, France
| | - Maria Carla Parrini
- Institut Curie, Centre de Recherche, Paris Sciences et Lettres Research University, 75005, Paris, France; ART Group, Inserm U830, 75005, Paris, France
| | - Franck Assayag
- Laboratory of Preclinical Investigation, Translational Research Department, Institut Curie, PSL Research University, 75005, Paris, France
| | - Luc Sensebe
- STROMALab, Etablissement Français Du Sang-Occitanie (EFS), Inserm 1031, University of Toulouse, ERL5311 CNRS, National Veterinary School of Toulouse (ENVT), Toulouse, France
| | - Pascal Silberzan
- Laboratoire PhysicoChimie Curie, Institut Curie, PSL Research University - Sorbonne Université - CNRS. Equipe Labellisée Ligue Contre le Cancer; 75005, Paris, France
| | - Anne Vincent-Salomon
- Department of Pathology, Institut Curie Hospital, 26, Rue D'Ulm, F-75248, Paris, France
| | - Guillaume Dutertre
- Surgical Oncology Department, Institut Curie, PSL Research University, 75005, Paris, France
| | - Sergio Roman-Roman
- Translational Research Department, Institut Curie, PSL Research University, 75005, Paris, France
| | - Stephanie Descroix
- Laboratoire PhysicoChimie Curie, Institut Curie, PSL Research University - Sorbonne Université - CNRS. Equipe Labellisée Ligue Contre le Cancer; 75005, Paris, France.
| | - Jacques Camonis
- Institut Curie, Centre de Recherche, Paris Sciences et Lettres Research University, 75005, Paris, France; ART Group, Inserm U830, 75005, Paris, France.
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24
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Perrier F, Bertucci A, Pierron F, Feurtet-Mazel A, Simon O, Klopp C, Candaudap F, Pokrovski O, Etcheverria B, Mornet S, Baudrimont M. Transfer and Transcriptomic Profiling in Liver and Brain of European Eels (Anguilla anguilla) After Diet-borne Exposure to Gold Nanoparticles. ENVIRONMENTAL TOXICOLOGY AND CHEMISTRY 2020; 39:2450-2461. [PMID: 32833228 DOI: 10.1002/etc.4858] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/12/2020] [Revised: 06/02/2020] [Accepted: 08/19/2020] [Indexed: 06/11/2023]
Abstract
A nanometric revolution is underway, promising technical innovations in a wide range of applications and leading to a potential boost in environmental discharges. The propensity of nanoparticles (NPs) to be transferred throughout trophic chains and to generate toxicity was mainly assessed in primary consumers, whereas a lack of knowledge for higher trophic levels persists. The present study focused on a predatory fish, the European eel (Anguilla anguilla) exposed to gold NPs (AuNPs; 10 nm, polyethylene glycol-coated) for 21 d at 3 concentration levels in food: 0 (NP0), 1 (NP1), and 10 (NP10) mg Au kg-1 . Transfer was assessed by Au quantification in eel tissues, and transcriptomic responses in the liver and brain were revealed by a high-throughput RNA-sequencing approach. Eels fed at NP10 presented an erratic feeding behavior, whereas Au quantification only indicated transfer to intestine and kidney of NP1-exposed eels. Sequencing of RNA was performed in NP0 and NP1 eels. A total of 258 genes and 156 genes were significantly differentially transcribed in response to AuNP trophic exposure in the liver and brain, respectively. Enrichment analysis highlighted modifications in the immune system-related processes in the liver. In addition, results pointed out a shared response of both organs regarding 13 genes, most of them being involved in immune functions. This finding may shed light on the mode of action and toxicity of AuNPs in fish. Environ Toxicol Chem 2020;39:2450-2461. © 2020 SETAC.
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Affiliation(s)
- Fanny Perrier
- Université de Bordeaux, CNRS, UMR EPOC 5805, Arcachon, France
| | | | - Fabien Pierron
- Université de Bordeaux, CNRS, UMR EPOC 5805, Arcachon, France
| | | | - Olivier Simon
- LECO, IRSN, PSE ENV, SRTE, Cadarache, Saint-Paul-lez-Durance Cedex, France
| | - Christophe Klopp
- Plate-forme bio-informatique Genotoul, Mathématiques et Informatique Appliquées de Toulouse, INRA, Castanet-Tolosan, France
| | | | - Oleg Pokrovski
- Université de Toulouse, CNRS, GET, UMR, 5563, Toulouse, France
| | | | - Stéphane Mornet
- Université de Bordeaux, CNRS, Bordeaux INP, ICMCB, UMR, 5026, Pessac, France
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25
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Rashidi M, Wicks IP, Vince JE. Inflammasomes and Cell Death: Common Pathways in Microparticle Diseases. Trends Mol Med 2020; 26:1003-1020. [DOI: 10.1016/j.molmed.2020.06.005] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2020] [Revised: 06/02/2020] [Accepted: 06/04/2020] [Indexed: 12/11/2022]
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26
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Feng X, Zhang Y, Zhang C, Lai X, Zhang Y, Wu J, Hu C, Shao L. Nanomaterial-mediated autophagy: coexisting hazard and health benefits in biomedicine. Part Fibre Toxicol 2020; 17:53. [PMID: 33066795 PMCID: PMC7565835 DOI: 10.1186/s12989-020-00372-0] [Citation(s) in RCA: 43] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2019] [Accepted: 07/28/2020] [Indexed: 02/07/2023] Open
Abstract
BACKGROUND Widespread biomedical applications of nanomaterials (NMs) bring about increased human exposure risk due to their unique physicochemical properties. Autophagy, which is of great importance for regulating the physiological or pathological activities of the body, has been reported to play a key role in NM-driven biological effects both in vivo and in vitro. The coexisting hazard and health benefits of NM-mediated autophagy in biomedicine are nonnegligible and require our particular concerns. MAIN BODY We collected research on the toxic effects related to NM-mediated autophagy both in vivo and in vitro. Generally, NMs can be delivered into animal models through different administration routes, or internalized by cells through different uptake pathways, exerting varying degrees of damage in tissues, organs, cells, and organelles, eventually being deposited in or excreted from the body. In addition, other biological effects of NMs, such as oxidative stress, inflammation, necroptosis, pyroptosis, and ferroptosis, have been associated with autophagy and cooperate to regulate body activities. We therefore highlight that NM-mediated autophagy serves as a double-edged sword, which could be utilized in the treatment of certain diseases related to autophagy dysfunction, such as cancer, neurodegenerative disease, and cardiovascular disease. Challenges and suggestions for further investigations of NM-mediated autophagy are proposed with the purpose to improve their biosafety evaluation and facilitate their wide application. Databases such as PubMed and Web of Science were utilized to search for relevant literature, which included all published, Epub ahead of print, in-process, and non-indexed citations. CONCLUSION In this review, we focus on the dual effect of NM-mediated autophagy in the biomedical field. It has become a trend to use the benefits of NM-mediated autophagy to treat clinical diseases such as cancer and neurodegenerative diseases. Understanding the regulatory mechanism of NM-mediated autophagy in biomedicine is also helpful for reducing the toxic effects of NMs as much as possible.
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Affiliation(s)
- Xiaoli Feng
- Stomatological Hospital, Southern Medical University, 366 South Jiangnan Road, Guangzhou, 510280, China
| | - Yaqing Zhang
- Nanfang Hospital, Southern Medical University, 1838 North Guangzhou Street, Guangzhou, 510515, China
| | - Chao Zhang
- Orthodontic Department, Stomatological Hospital, Southern Medical University, 366 South Jiangnan Road, Guangzhou, 510280, China
| | - Xuan Lai
- Nanfang Hospital, Southern Medical University, 1838 North Guangzhou Street, Guangzhou, 510515, China
| | - Yanli Zhang
- Stomatological Hospital, Southern Medical University, 366 South Jiangnan Road, Guangzhou, 510280, China
| | - Junrong Wu
- Nanfang Hospital, Southern Medical University, 1838 North Guangzhou Street, Guangzhou, 510515, China
| | - Chen Hu
- Nanfang Hospital, Southern Medical University, 1838 North Guangzhou Street, Guangzhou, 510515, China
| | - Longquan Shao
- Nanfang Hospital, Southern Medical University, 1838 North Guangzhou Street, Guangzhou, 510515, China.
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27
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Wu D, Wang S, Yu G, Chen X. Cell Death Mediated by the Pyroptosis Pathway with the Aid of Nanotechnology: Prospects for Cancer Therapy. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202010281] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Dan Wu
- College of Materials Science and Engineering Zhejiang University of Technology Hangzhou 310014 P. R. China
| | - Sheng Wang
- School of Life Sciences Tianjin University and Tianjin Engineering Center of Micro-Nano Biomaterials and Detection-Treatment Technology Tianjin 300072 P. R. China
| | - Guocan Yu
- Laboratory of Molecular Imaging and Nanomedicine National Institute of Biomedical Imaging and Bioengineering National Institutes of Health Bethesda Maryland 20892 USA
| | - Xiaoyuan Chen
- Laboratory of Molecular Imaging and Nanomedicine National Institute of Biomedical Imaging and Bioengineering National Institutes of Health Bethesda Maryland 20892 USA
- Yong Loo Lin School of Medicine and Faculty of Engineering National University of Singapore Singapore 117597 Singapore
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28
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Wu D, Wang S, Yu G, Chen X. Cell Death Mediated by the Pyroptosis Pathway with the Aid of Nanotechnology: Prospects for Cancer Therapy. Angew Chem Int Ed Engl 2020; 60:8018-8034. [PMID: 32894628 DOI: 10.1002/anie.202010281] [Citation(s) in RCA: 120] [Impact Index Per Article: 30.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2020] [Revised: 08/18/2020] [Indexed: 12/20/2022]
Abstract
Pyroptosis, a unique form of programmed cell death (PCD) that is characterized by DNA fragmentation, chromatin condensation, cellular swelling with big bubbles, and leakage of cell content, has been proven to have a close relationship with human diseases, such as inflammatory diseases and malignant tumors. Since a new gasdermin-D (GSDMD) protein was identified in 2015, various strategies have been developed to induce pyroptosis for cancer therapy, including ions, small-molecule drugs and nanomaterials. Although there are a number of reviews about the close relationship between the pyroptosis mechanism and the occurrence of various cancers, a summary covering recent progress in the field of nanomedicines in pyroptosis-based cancer therapy has not yet been presented. Therefore, it is urgent to fill this gap and light up future directions for the use of this powerful tool to combat cancer. In this Minireview, recent progress in cancer treatment based on pyroptosis induced by nanoparticles will be described in detail, the design highlights and the therapeutic advantages are emphasized, and future perspectives in this emerging area are proposed.
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Affiliation(s)
- Dan Wu
- College of Materials Science and Engineering, Zhejiang University of Technology, Hangzhou, 310014, P. R. China
| | - Sheng Wang
- School of Life Sciences, Tianjin University and Tianjin Engineering Center of Micro-Nano Biomaterials and Detection-Treatment Technology, Tianjin, 300072, P. R. China
| | - Guocan Yu
- Laboratory of Molecular Imaging and Nanomedicine, National Institute of Biomedical Imaging and Bioengineering, National Institutes of Health, Bethesda, Maryland, 20892, USA
| | - Xiaoyuan Chen
- Laboratory of Molecular Imaging and Nanomedicine, National Institute of Biomedical Imaging and Bioengineering, National Institutes of Health, Bethesda, Maryland, 20892, USA.,Yong Loo Lin School of Medicine and Faculty of Engineering, National University of Singapore, Singapore, 117597, Singapore
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Bagheri HS, Bani F, Tasoglu S, Zarebkohan A, Rahbarghazi R, Sokullu E. Mitochondrial donation in translational medicine; from imagination to reality. J Transl Med 2020; 18:367. [PMID: 32977804 PMCID: PMC7517067 DOI: 10.1186/s12967-020-02529-z] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2020] [Accepted: 09/15/2020] [Indexed: 02/07/2023] Open
Abstract
The existence of active crosstalk between cells in a paracrine and juxtacrine manner dictates specific activity under physiological and pathological conditions. Upon juxtacrine interaction between the cells, various types of signaling molecules and organelles are regularly transmitted in response to changes in the microenvironment. To date, it has been well-established that numerous parallel cellular mechanisms participate in the mitochondrial transfer to modulate metabolic needs in the target cells. Since the conception of stem cells activity in the restoration of tissues’ function, it has been elucidated that these cells possess a unique capacity to deliver the mitochondrial package to the juxtaposed cells. The existence of mitochondrial donation potentiates the capacity of modulation in the distinct cells to achieve better therapeutic effects. This review article aims to scrutinize the current knowledge regarding the stem cell’s mitochondrial transfer capacity and their regenerative potential.
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Affiliation(s)
- Hesam Saghaei Bagheri
- School of Medicine, Biophysics Department, Koç University, Rumeli Fener, Sarıyer, Istanbul, Turkey.,Koç University Translational Medicine Research Center (KUTTAM) Rumeli Feneri, Sarıyer, Istanbul, Turkey
| | - Farhad Bani
- Department of Medical Nanotechnology, Faculty of Advanced Medical Sciences, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Savas Tasoglu
- Koç University Translational Medicine Research Center (KUTTAM) Rumeli Feneri, Sarıyer, Istanbul, Turkey.,Faculty of Engineering, Mechanical Engineering Department, Koç University, Rumeli Feneri Yolu, Sarıyer, Istanbul, Turkey
| | - Amir Zarebkohan
- Department of Medical Nanotechnology, Faculty of Advanced Medical Sciences, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Reza Rahbarghazi
- Stem Cell Research Center, Tabriz University of Medical Sciences, Tabriz, Iran. .,Department of Applied Cell Sciences, Faculty of Advanced Medical Sciences, Tabriz University of Medical Sciences, Imam Reza St., Daneshgah St., 51666-14756, Tabriz, Iran.
| | - Emel Sokullu
- School of Medicine, Biophysics Department, Koç University, Rumeli Fener, Sarıyer, Istanbul, Turkey. .,Koç University Translational Medicine Research Center (KUTTAM) Rumeli Feneri, Sarıyer, Istanbul, Turkey.
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30
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Han C, Guo L, Yang Y, Guan Q, Shen H, Sheng Y, Jiao Q. Mechanism of microRNA-22 in regulating neuroinflammation in Alzheimer's disease. Brain Behav 2020; 10:e01627. [PMID: 32307887 PMCID: PMC7303389 DOI: 10.1002/brb3.1627] [Citation(s) in RCA: 45] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/02/2020] [Revised: 02/28/2020] [Accepted: 03/10/2020] [Indexed: 12/30/2022] Open
Abstract
BACKGROUND Study on the expression of miRNA-22 in serum of Alzheimer's disease (AD) patients and the mechanism of neuroinflammation regulation. METHODS ELISA assay was used to detect the serum level of inflammatory factors, including interleukin-1β (IL-1β), interleukin-18 (IL-18), and tumor necrosis factor-α in AD patients. TargetScan database and luciferase reporter gene assay indicated that gasdermin D (GSDMD) was the target gene of miRNA-22. miRNA-22 mimic was transfected into microglia, followed by administration of LPS and Nigericin to induce pyroptosis. RESULTS In this study, we found that the expression level of miRNA-22 in peripheral blood was lower in AD patients than that in healthy population. The expression of inflammatory factors was higher in AD patients than that in healthy people, which was negatively correlated with miRNA-22. miRNA-22 mimic could significantly inhibit pyroptosis, the expression of GSDMD and p30-GSDMD was down-regulated, the release of inflammatory factor was decreased, and the expression of NLRP3 inflammasome was down-regulated as feedback. In the APP/PS1 double transgenic mouse model, the injection of miRNA-22 mimic significantly improved the memory ability and behavior of mice. In addition, the expression of the vital protein of pyroptosis in mouse brain tissue, including GSDMD and p30-GSDMD, was down-regulated, and the expression of inflammatory factors was also decreased. CONCLUSION miRNA-22 was negatively correlated with the expression of inflammatory factors in AD patients, and miRNA-22 could inhibit the release of inflammatory cytokines by regulating the inflammatory pyroptosis of glial cells via targeting GSDMD, thereby improving cognitive ability in AD mice. miRNA-22 and pyroptosis are potential novel therapeutic targets in the treatment of AD.
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Affiliation(s)
- Chenyang Han
- State Key Laboratory of Pharmaceutical Biotechnology, School of Life Science, Nanjing University, Nanjing, China.,Department of Pharmacy, The Second Affiliated Hospital of Jiaxing University, Jiaxing, China
| | - Li Guo
- Department of Center Laboratory, The Second Affiliated Hospital of Jiaxing University, Jiaxing, China
| | - Yi Yang
- Department of Neurology, The Second Affiliated Hospital of Jiaxing University, Jiaxing, China
| | - Qiaobing Guan
- Department of Neurology, The Second Affiliated Hospital of Jiaxing University, Jiaxing, China
| | - Heping Shen
- Department of Neurology, The Second Affiliated Hospital of Jiaxing University, Jiaxing, China
| | - Yongjia Sheng
- Department of Pharmacy, The Second Affiliated Hospital of Jiaxing University, Jiaxing, China
| | - Qingcai Jiao
- State Key Laboratory of Pharmaceutical Biotechnology, School of Life Science, Nanjing University, Nanjing, China
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Silica dioxide nanoparticles aggravate airway inflammation in an asthmatic mouse model via NLRP3 inflammasome activation. Regul Toxicol Pharmacol 2020; 112:104618. [PMID: 32087352 DOI: 10.1016/j.yrtph.2020.104618] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2019] [Revised: 01/22/2020] [Accepted: 02/18/2020] [Indexed: 12/18/2022]
Abstract
Silica dioxide nanoparticles (SiONPs) are mainly used in the rubber industry; however, they are a major air pollutant in Asia. Thus, extensive research on this issue is required. In this study, we investigated the effects of SiONPs on asthma aggravation and elucidated the underlying mechanism using ovalbumin (OVA)-induced asthmatic mice model and in NCI-H292 cells. Mice exposed to SiONPs showed markedly increased Penh values, inflammatory cell counts, and inflammatory cytokine levels compared to OVA-induced asthmatic mice. Exposure to SiONPs also induced additional airway inflammation and mucus secretion with increases in protein expression levels of thioredoxin-interacting protein (TXNIP), NOD-like receptor pyrin domain-containing 3 (NLRP3) inflammasome, and interleukin (IL)-1β compared to those in OVA-induced asthmatic mice. Treatment of SiONPs in NCI-H292 cells also significantly increased mRNA expression levels of inflammatory cytokines accompanied with elevation in the levels of TXNIP, NLRP3 inflammasome, and IL-1β proteins in a concentration-dependent manner. Taken together, exposure to SiONPs aggravated asthma development, which is closely related to inflammasome activation. Our results provide useful information about the toxicological effects of SiONPs on asthma exacerbation and suggest the need to avoid SiONP exposure especially in individuals with respiratory diseases.
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Kim SH, Jeon S, Lee DK, Lee S, Jeong J, Kim JS, Cho WS. The early onset and persistent worsening pulmonary alveolar proteinosis in rats by indium oxide nanoparticles. Nanotoxicology 2019; 14:468-478. [PMID: 31775551 DOI: 10.1080/17435390.2019.1694184] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Workplace inhalation exposure to indium compounds has been reported to produce 'indium lung disease' characterized by pulmonary alveolar proteinosis (PAP), granulomas, and pulmonary fibrosis. However, there is little information about the pulmonary toxicity of nano-sized indium oxide (In2O3), which is widely used in various applications such as liquid crystal displays. In this study, we evaluated the time-course and dose-dependent lung injuries by In2O3 nanoparticles (NPs) after a single intratracheal instillation to rats. In2O3 NPs were instilled to female Wistar rats at 7.5, 30, and 90 cm2/rat and lung injuries were evaluated at day 1, 3, 7, 14, 30, 90, and 180 after a single intratracheal instillation. Treatment of In2O3 NPs induced worsening diverse pathological changes including PAP, persistent neutrophilic inflammation, type II cell hyperplasia, foamy macrophages, and granulomas in a time- and dose-dependent manner. PAP was induced from day 3 and worsened throughout the study. The concentrations of interleukin-1β, tumor necrosis factor-α, and monocyte chemoattractant protein-1 in bronchoalveolar lavage fluid (BALF) showed dose- and time-dependent increases and the levels of these inflammatory mediators are consistent with the data of inflammatory cells in BALF and progressive lung damages by In2O3 NPs. This study suggests that a single inhalation exposure to In2O3 NPs can produce worsening lung damages such as PAP, chronic active inflammation, infiltration of foamy macrophages, and granulomas. The early onset and persistent PAP even at the very low dose (7.5 cm2/rat) implies that the re-evaluation of occupational recommended exposure limit for In2O3 NPs is urgently needed to protect workers.
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Affiliation(s)
- Sung-Hyun Kim
- Lab of Toxicology, Department of Medicinal Biotechnology, College of Health Sciences, Dong-A University, Busan, Republic of Korea
| | - Soyeon Jeon
- Lab of Toxicology, Department of Medicinal Biotechnology, College of Health Sciences, Dong-A University, Busan, Republic of Korea
| | - Dong-Keun Lee
- Lab of Toxicology, Department of Medicinal Biotechnology, College of Health Sciences, Dong-A University, Busan, Republic of Korea
| | - Seonghan Lee
- Lab of Toxicology, Department of Medicinal Biotechnology, College of Health Sciences, Dong-A University, Busan, Republic of Korea
| | - Jiyoung Jeong
- Lab of Toxicology, Department of Medicinal Biotechnology, College of Health Sciences, Dong-A University, Busan, Republic of Korea
| | - Jong Sung Kim
- Department of Community Health and Epidemiology, Dalhousie University, Halifax, Canada
| | - Wan-Seob Cho
- Lab of Toxicology, Department of Medicinal Biotechnology, College of Health Sciences, Dong-A University, Busan, Republic of Korea
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Long Y, Liu X, Tan XZ, Jiang CX, Chen SW, Liang GN, He XM, Wu J, Chen T, Xu Y. ROS-induced NLRP3 inflammasome priming and activation mediate PCB 118- induced pyroptosis in endothelial cells. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2019; 189:109937. [PMID: 31785945 DOI: 10.1016/j.ecoenv.2019.109937] [Citation(s) in RCA: 74] [Impact Index Per Article: 14.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/06/2019] [Revised: 11/07/2019] [Accepted: 11/09/2019] [Indexed: 02/05/2023]
Abstract
Growing epidemiological evidence has shown that exposure to polychlorinated biphenyls (PCBs) is harmful to the cardiovascular system. However, how PCB 118-induced oxidative stress mediates endothelial dysfunction is not fully understood. Here, we explored whether and how PCB 118 exposure-induced oxidative stress leads to NLRP3 inflammasome-dependent pyroptosis in endothelial cells. As expected, PCB 118 was cytotoxic to HUVECs and induced caspase-1 activation and cell membrane disruption, which are characteristics of pyroptosis. Moreover, PCB 118-induced pyroptosis may have been due to the activation of the NLRP3 infammasomes. PCB 118 also induced excessive reactive oxygen species (ROS) in HUVECs. The ROS scavenger (±)-α-tocopherol and the NFκB inhibitor BAY11-7082 reversed the upregulation of NLRP3 expression and the increase in NLRP3 inflammasome activation induced by PCB 118 exposure in HUVECs. Additionally, PCB 118-induced oxidative stress and pyroptosis were dependent on Aryl hydrocarbon receptor (AhR) activation and subsequent cytochrome P450 1A1 upregulation, which we confirmed by using the AhR selective antagonist CH 223191. These data suggest that PCB 118 exposure induces NLRP3 inflammasome activation and subsequently leads to pyroptosis in endothelial cells in vitro and in vivo. AhR-mediated ROS production play a central role in PCB 118-induced pyroptosis by priming NFκB-dependent NLRP3 expression and promoting inflammasome activation.
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Affiliation(s)
- Yang Long
- Department of Endocrinology, The Affiliated Hospital of Southwest Medical University, Luzhou, 646000, Sichuan, PR China; Laboratory of Endocrinology, Experimental Medicine Center, The Affiliated Hospital of Southwest Medical University, Luzhou, 646000, Sichuan, PR China
| | - Xin Liu
- Laboratory of Endocrinology, Experimental Medicine Center, The Affiliated Hospital of Southwest Medical University, Luzhou, 646000, Sichuan, PR China
| | - Xiao-Zhen Tan
- Laboratory of Endocrinology, Experimental Medicine Center, The Affiliated Hospital of Southwest Medical University, Luzhou, 646000, Sichuan, PR China
| | - Chun-Xia Jiang
- Department of Endocrinology, The Affiliated Hospital of Southwest Medical University, Luzhou, 646000, Sichuan, PR China
| | - Shao-Wei Chen
- Medical Reproduction Center, The Affiliated Hospital of Southwest Medical University, Luzhou, 646000, Sichuan, PR China
| | - Guan-Nan Liang
- Laboratory of Endocrinology, Experimental Medicine Center, The Affiliated Hospital of Southwest Medical University, Luzhou, 646000, Sichuan, PR China
| | - Xue-Mei He
- Laboratory of Endocrinology, Experimental Medicine Center, The Affiliated Hospital of Southwest Medical University, Luzhou, 646000, Sichuan, PR China
| | - Jian Wu
- Laboratory of Endocrinology, Experimental Medicine Center, The Affiliated Hospital of Southwest Medical University, Luzhou, 646000, Sichuan, PR China
| | - Tao Chen
- Department of Endocrinology and Metabolism, West China Hospital of Sichuan University, Chengdu, 610041, Sichuan, PR China.
| | - Yong Xu
- Department of Endocrinology, The Affiliated Hospital of Southwest Medical University, Luzhou, 646000, Sichuan, PR China; Key Laboratory of Medical Electrophysiology of Ministry of Education, Collaborative Innovation Center for Prevention and Treatment of Cardiovascular Disease, Institute of Cardiovascular Research, Southwest Medical University, Luzhou, 646000, Sichuan, PR China.
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Naji A, Eitoku M, Favier B, Deschaseaux F, Rouas-Freiss N, Suganuma N. Biological functions of mesenchymal stem cells and clinical implications. Cell Mol Life Sci 2019; 76:3323-3348. [PMID: 31055643 PMCID: PMC11105258 DOI: 10.1007/s00018-019-03125-1] [Citation(s) in RCA: 295] [Impact Index Per Article: 59.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2018] [Revised: 04/19/2019] [Accepted: 04/30/2019] [Indexed: 02/06/2023]
Abstract
Mesenchymal stem cells (MSCs) are isolated from multiple biological tissues-adult bone marrow and adipose tissues and neonatal tissues such as umbilical cord and placenta. In vitro, MSCs show biological features of extensive proliferation ability and multipotency. Moreover, MSCs have trophic, homing/migration and immunosuppression functions that have been demonstrated both in vitro and in vivo. A number of clinical trials are using MSCs for therapeutic interventions in severe degenerative and/or inflammatory diseases, including Crohn's disease and graft-versus-host disease, alone or in combination with other drugs. MSCs are promising for therapeutic applications given the ease in obtaining them, their genetic stability, their poor immunogenicity and their curative properties for tissue repair and immunomodulation. The success of MSC therapy in degenerative and/or inflammatory diseases might depend on the robustness of the biological functions of MSCs, which should be linked to their therapeutic potency. Here, we outline the fundamental and advanced concepts of MSC biological features and underline the biological functions of MSCs in their basic and translational aspects in therapy for degenerative and/or inflammatory diseases.
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Affiliation(s)
- Abderrahim Naji
- Department of Environmental Medicine, Cooperative Medicine Unit, Research and Education Faculty, Medicine Science Cluster, Kochi Medical School, Kochi University, Kohasu, Oko-Cho, Nankoku, Kochi, 783-8505, Japan.
| | - Masamitsu Eitoku
- Department of Environmental Medicine, Cooperative Medicine Unit, Research and Education Faculty, Medicine Science Cluster, Kochi Medical School, Kochi University, Kohasu, Oko-Cho, Nankoku, Kochi, 783-8505, Japan
| | - Benoit Favier
- CEA, DRF-IBFJ, IDMIT, INSERM U1184, Immunology of Viral Infections and Autoimmune Diseases, Paris-Sud University, Fontenay-aux-Roses, France
| | - Frédéric Deschaseaux
- STROMALab, Etablissement Français du Sang Occitanie, UMR 5273 CNRS, INSERM U1031, Université de Toulouse, Toulouse, France
| | - Nathalie Rouas-Freiss
- CEA, DRF-Francois Jacob Institute, Research Division in Hematology and Immunology (SRHI), Saint-Louis Hospital, IRSL, UMRS 976, Paris, France
| | - Narufumi Suganuma
- Department of Environmental Medicine, Cooperative Medicine Unit, Research and Education Faculty, Medicine Science Cluster, Kochi Medical School, Kochi University, Kohasu, Oko-Cho, Nankoku, Kochi, 783-8505, Japan
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Liao J, Yang F, Tang Z, Yu W, Han Q, Hu L, Li Y, Guo J, Pan J, Ma F, Ma X, Lin Y. Inhibition of Caspase-1-dependent pyroptosis attenuates copper-induced apoptosis in chicken hepatocytes. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2019; 174:110-119. [PMID: 30822667 DOI: 10.1016/j.ecoenv.2019.02.069] [Citation(s) in RCA: 61] [Impact Index Per Article: 12.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/22/2018] [Revised: 02/20/2019] [Accepted: 02/21/2019] [Indexed: 06/09/2023]
Abstract
The purpose of this study was to investigate the effects of copper (Cu) on hepatocyte pyroptosis and the relationship between pyroptosis and apoptosis in the mechanisms of Cu toxicity. Primary chicken hepatocytes were cultured in different concentrations of Cu sulfate (CuSO4) (0, 10, 50, and 100 μM), N-acetylcysteine (NAC) (1 mM), and Z-YVAD-fluoromethylketone (Z-YVAD-FMK) (10 μM) for 24 h, and the combination of Cu and NAC or Z-YVAD-FMK for 24 h. Cellular morphology and function, cell viability, mitochondria membrane potential (MMP), apoptosis rate, mRNA expression of pyroptosis-related and apoptosis-related genes, and Caspase-1, Caspase-3 proteins expression were determined. These results indicated that Cu markedly induced the mRNA expression of pyroptosis-related genes (Caspase-1, IL-1β, IL-18, and NLRP3) and Caspase-1 protein expression. Furthermore, contents of Caspase-1, IL-1β, and IL-18 in the supernatant fluid of culture hepatocytes were significantly increased in hepatocytes. NAC relieved excess Cu-caused the changes of above genes and proteins. Additionally, Z-YVAD-FMK, caspase-1 inhibitor, which attenuated Cu-induced the increased lactic dehydrogenase (LDH), aspartate amino transferase (AST), alanine aminotransferase (ALT) activities. Furthermore, treatment with Cu and Z-YVAD-FMK could down-regulate the mRNA levels of Caspase-3, Bak1, Bax, and CytC and Caspase-3 protein expression, up-regulate the mRNA expression of Bcl2, increase the MMP and reduce cell apoptosis compared to treatment with Cu in hepatocytes. Collectively, these finding evidenced that excess Cu induced pyroptosis by generating ROS in hepatocytes, and the inhibition of Caspase-1-dependent pyroptosis might attenuate Cu-induced apoptosis.
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Affiliation(s)
- Jianzhao Liao
- College of Veterinary Medicine, South China Agricultural University, Guangzhou 510642, Guangdong, PR China.
| | - Fan Yang
- College of Veterinary Medicine, South China Agricultural University, Guangzhou 510642, Guangdong, PR China; Institute of Animal Population Health, College of Animal Science and Technology, Jiangxi Agricultural University, Nanchang 330045, PR China
| | - Zhaoxin Tang
- College of Veterinary Medicine, South China Agricultural University, Guangzhou 510642, Guangdong, PR China.
| | - Wenlan Yu
- College of Veterinary Medicine, South China Agricultural University, Guangzhou 510642, Guangdong, PR China
| | - Qingyue Han
- College of Veterinary Medicine, South China Agricultural University, Guangzhou 510642, Guangdong, PR China
| | - Lianmei Hu
- College of Veterinary Medicine, South China Agricultural University, Guangzhou 510642, Guangdong, PR China
| | - Ying Li
- College of Veterinary Medicine, South China Agricultural University, Guangzhou 510642, Guangdong, PR China
| | - Jianying Guo
- College of Veterinary Medicine, South China Agricultural University, Guangzhou 510642, Guangdong, PR China
| | - Jiaqiang Pan
- College of Veterinary Medicine, South China Agricultural University, Guangzhou 510642, Guangdong, PR China
| | - Feiyang Ma
- College of Veterinary Medicine, South China Agricultural University, Guangzhou 510642, Guangdong, PR China
| | - Xinyan Ma
- College of Veterinary Medicine, South China Agricultural University, Guangzhou 510642, Guangdong, PR China
| | - Yuyin Lin
- College of Veterinary Medicine, South China Agricultural University, Guangzhou 510642, Guangdong, PR China
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Naji A, Favier B, Deschaseaux F, Rouas-Freiss N, Eitoku M, Suganuma N. Mesenchymal stem/stromal cell function in modulating cell death. Stem Cell Res Ther 2019; 10:56. [PMID: 30760307 PMCID: PMC6374902 DOI: 10.1186/s13287-019-1158-4] [Citation(s) in RCA: 37] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Abstract
Mesenchymal stem/stromal cells (MSCs) delivered as cell therapy to individuals with degenerative and/or inflammatory disorders can help improve organ features and resolve inflammation, as demonstrated in preclinical studies and to some extent in clinical studies. MSCs have trophic, homing/migration, and immunosuppression functions, with many benefits in therapeutics. MSC functions are thought to depend on the paracrine action of soluble factors and/or the expression of membrane-bound molecules, mostly belonging to the molecular class of adhesion molecules, chemokines, enzymes, growth factors, and interleukins. Cutting-edge studies underline bioactive exchanges, including that of ions, nucleic acids, proteins, and organelles transferred from MSCs to stressed cells, thereby improving the cells' survival and function. From this aspect, MSC death modulation function appears as a decisive biological function that could carry a significant part of the therapeutic effects of MSCs. Identifying the function and modes of actions of MSCs in modulating cell death may be exploited to enhance consistency and efficiency of cell therapy that is based on MSCs as medical treatment for degenerative and/or inflammatory diseases. Here, we review the essentials of MSC functions in modulating cell death in unfit cells, and its modes of actions based on current advances and outline the clinical implications.
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Affiliation(s)
- Abderrahim Naji
- Department of Environmental Medicine, Cooperative Medicine Unit, Research and Education Faculty, Medicine Science Cluster, Kochi Medical School (KMS), Kochi University, Kohasu, Oko-Cho, Nankoku City, Kochi Prefecture, 783-8505, Japan.
| | - Benoit Favier
- CEA-Université Paris Sud INSERM U1184, IDMIT Department, IBFJ, DRF, Fontenay-aux-Roses, France
| | - Frédéric Deschaseaux
- STROMALab, UMR 5273 CNRS, INSERM U1031, Etablissement Français du Sang (EFS) Occitanie, Université de Toulouse, Toulouse, France
| | - Nathalie Rouas-Freiss
- CEA, DRF-Institut Francois Jacob, Division de recherche en hématologie et immunologie (SRHI), Hôpital Saint-Louis, Paris, France
| | - Masamitsu Eitoku
- Department of Environmental Medicine, Cooperative Medicine Unit, Research and Education Faculty, Medicine Science Cluster, Kochi Medical School (KMS), Kochi University, Kohasu, Oko-Cho, Nankoku City, Kochi Prefecture, 783-8505, Japan
| | - Narufumi Suganuma
- Department of Environmental Medicine, Cooperative Medicine Unit, Research and Education Faculty, Medicine Science Cluster, Kochi Medical School (KMS), Kochi University, Kohasu, Oko-Cho, Nankoku City, Kochi Prefecture, 783-8505, Japan.
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Brzicova T, Sikorova J, Milcova A, Vrbova K, Klema J, Pikal P, Lubovska Z, Philimonenko V, Franco F, Topinka J, Rossner P. Nano-TiO2 stability in medium and size as important factors of toxicity in macrophage-like cells. Toxicol In Vitro 2019; 54:178-188. [DOI: 10.1016/j.tiv.2018.09.019] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2017] [Revised: 08/30/2018] [Accepted: 09/26/2018] [Indexed: 10/28/2022]
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Leso V, Fontana L, Iavicoli I. Nanomaterial exposure and sterile inflammatory reactions. Toxicol Appl Pharmacol 2018; 355:80-92. [DOI: 10.1016/j.taap.2018.06.021] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2018] [Revised: 06/24/2018] [Accepted: 06/25/2018] [Indexed: 12/20/2022]
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Suppression of NLRP3 inflammasome attenuates stress-induced depression-like behavior in NLGN3-deficient mice. Biochem Biophys Res Commun 2018; 501:933-940. [DOI: 10.1016/j.bbrc.2018.05.085] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2018] [Accepted: 05/14/2018] [Indexed: 12/20/2022]
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40
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Wang J, Li H, Yao Y, Zhao T, Chen YY, Shen YL, Wang LL, Zhu Y. Stem cell-derived mitochondria transplantation: a novel strategy and the challenges for the treatment of tissue injury. Stem Cell Res Ther 2018; 9:106. [PMID: 29653590 PMCID: PMC5899391 DOI: 10.1186/s13287-018-0832-2] [Citation(s) in RCA: 51] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Abstract
Damage of mitochondria in the initial period of tissue injury aggravates the severity of injury. Restoration of mitochondria dysfunction and mitochondrial-based therapeutics represent a potentially effective therapeutic strategy. Recently, mitochondrial transfer from stem cells has been demonstrated to play a significant role in rescuing injured tissues. The possible mechanisms of mitochondria released from stem cells, the pathways of mitochondria transfer between the donor stem cells and recipient cells, and the internalization of mitochondria into recipient cells are discussed. Moreover, a novel strategy for tissue injury based on the concept of stem cell-derived mitochondrial transplantation is pointed out, and the advantages and challenges are summarized.
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Affiliation(s)
- Jingyu Wang
- Department of Neurosurgery, The Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, 310009, China
| | - Heyangzi Li
- Department of Basic Medicine Sciences, School of Medicine, Zhejiang University, Hangzhou, 310058, China
| | - Ying Yao
- Department of Neurosurgery, The Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, 310009, China
| | - Tengfei Zhao
- Department of Orthopedic Surgery, the Second Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, 310009, China
| | - Ying-Ying Chen
- Department of Basic Medicine Sciences, School of Medicine, Zhejiang University, Hangzhou, 310058, China
| | - Yue-Liang Shen
- Department of Basic Medicine Sciences, School of Medicine, Zhejiang University, Hangzhou, 310058, China
| | - Lin-Lin Wang
- Department of Basic Medicine Sciences, School of Medicine, Zhejiang University, Hangzhou, 310058, China.
| | - Yongjian Zhu
- Department of Neurosurgery, The Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, 310009, China.
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41
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Manshian BB, Poelmans J, Saini S, Pokhrel S, Grez JJ, Himmelreich U, Mädler L, Soenen SJ. Nanoparticle-induced inflammation can increase tumor malignancy. Acta Biomater 2018; 68:99-112. [PMID: 29274476 DOI: 10.1016/j.actbio.2017.12.020] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2017] [Revised: 12/12/2017] [Accepted: 12/15/2017] [Indexed: 11/15/2022]
Abstract
Nanomaterials, such as aluminum oxide, have been regarded with high biomedical promise as potential immune adjuvants in favor of their bulk counterparts. For pathophysiological conditions where elevated immune activity already occurs, the contribution of nanoparticle-activated immune reactions remains unclear. Here, we investigated the effect of spherical and wire-shaped aluminum oxide nanoparticles on primary splenocytes and observed a clear pro-inflammatory effect of both nanoparticles, mainly for the high aspect ratio nanowires. The nanoparticles resulted in a clear activation of NLRP3 inflammasome, and also secreted transforming growth factor β. When cancer cells were exposed to these cytokines, this resulted in an increased level of epithelial-to-mesenchymal-transition, a hallmark for cancer metastasis, which did not occur when the cancer cells were directly exposed to the nanoparticles themselves. Using a syngeneic tumor model, the level of inflammation and degree of lung metastasis were significantly increased when the animals were exposed to the nanoparticles, particularly for the nanowires. This effect could be abrogated by treating the animals with inflammatory inhibitors. Collectively, these data indicate that the interaction of nanoparticles with immune cells can have secondary effects that may aggravate pathophysiological conditions, such as cancer malignancy, and conditions must be carefully selected to finely tune the induced aspecific inflammation into cancer-specific antitumor immunity. STATEMENT OF SIGNIFICANCE Many different types of nanoparticles have been shown to possess immunomodulatory properties, depending on their physicochemical parameters. This can potentially be harnessed as a possible antitumor therapy. However, in the current work we show that inflammation elicited by nanomaterials can have grave effects in pathophysiological conditions, where non-specific inflammation was found to increase cancer cell mobility and tumor malignancy. These data show that immunomodulatory properties of nanomaterials must be carefully controlled to avoid any undesired side-effects.
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Affiliation(s)
- Bella B Manshian
- Biomedical MRI Unit/MoSAIC, Department of Imaging and Pathology, KU Leuven, Herestraat 49, B3000 Leuven, Belgium
| | - Jennifer Poelmans
- Biomedical MRI Unit/MoSAIC, Department of Imaging and Pathology, KU Leuven, Herestraat 49, B3000 Leuven, Belgium
| | - Shweta Saini
- Biomedical MRI Unit/MoSAIC, Department of Imaging and Pathology, KU Leuven, Herestraat 49, B3000 Leuven, Belgium
| | - Suman Pokhrel
- Foundation Institute of Materials Science (IWT), Department of Production Engineering, University of Bremen, Bremen, Germany
| | - Julio Jiménez Grez
- Organ Systems, Department of Development and Regeneration, KU Leuven, Herestraat 49, B3000 Leuven, Belgium; Department of Obstetrics and Gynaecology, Clínica Alemana Universidad del Desarrollo, Santiago, Chile
| | - Uwe Himmelreich
- Biomedical MRI Unit/MoSAIC, Department of Imaging and Pathology, KU Leuven, Herestraat 49, B3000 Leuven, Belgium
| | - Lutz Mädler
- Foundation Institute of Materials Science (IWT), Department of Production Engineering, University of Bremen, Bremen, Germany
| | - Stefaan J Soenen
- Biomedical MRI Unit/MoSAIC, Department of Imaging and Pathology, KU Leuven, Herestraat 49, B3000 Leuven, Belgium.
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New interplay between interstitial and alveolar macrophages explains pulmonary alveolar proteinosis (PAP) induced by indium tin oxide particles. Arch Toxicol 2018; 92:1349-1361. [PMID: 29484482 DOI: 10.1007/s00204-018-2168-1] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2017] [Accepted: 01/25/2018] [Indexed: 12/14/2022]
Abstract
Occupational exposure to indium tin oxide (ITO) particles has been associated with the development of severe lung diseases, including pulmonary alveolar proteinosis (PAP). The mechanisms of this lung toxicity remain unknown. Here, we reveal the respective roles of resident alveolar (Siglec-Fhigh AM) and recruited interstitial (Siglec-Flow IM) macrophages contributing in concert to the development of PAP. In mice treated with ITO particles, PAP is specifically associated with IL-1α (not GM-CSF) deficiency and Siglec-Fhigh AM (not Siglec-Flow IM) depletion. Mechanistically, ITO particles are preferentially phagocytosed and dissolved to soluble In3+ by Siglec-Flow IM. In contrast, Siglec-Fhigh AM weakly phagocytose or dissolve ITO particles, but are sensitive to released In3+ through the expression of the transferrin receptor-1 (TfR1). Blocking pulmonary Siglec-Flow IM recruitment in CCR2-deficient mice reduces ITO particle dissolution, In3+ release, Siglec-Fhigh AM depletion, and PAP formation. Restoration of IL-1-related Siglec-Fhigh AM also prevented ITO-induced PAP. We identified a new mechanism of secondary PAP development according to which metal ions released from inhaled particles by phagocytic IM disturb IL-1α-dependent AM self-maintenance and, in turn, alveolar clearance.
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43
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Mukherjee SP, Kostarelos K, Fadeel B. Cytokine Profiling of Primary Human Macrophages Exposed to Endotoxin-Free Graphene Oxide: Size-Independent NLRP3 Inflammasome Activation. Adv Healthc Mater 2018; 7. [PMID: 29266859 DOI: 10.1002/adhm.201700815] [Citation(s) in RCA: 50] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2017] [Revised: 10/16/2017] [Indexed: 12/12/2022]
Abstract
Graphene-based materials including graphene oxide (GO) are envisioned for a variety of biomedical applications. However, there are conflicting results concerning the biocompatibility of these materials. Here, a question is raised whether GO with small or large lateral dimensions triggers cytotoxicity and/or cytokine responses in primary human monocyte-derived macrophages. GO sheets produced under sterile conditions by a modified Hummers' method are found to be taken up by macrophages without signs of cytotoxicity. Then, multiplex arrays are used for profiling of proinflammatory and anti-inflammatory responses. Notably, GO suppresses the lipopolysaccharide (LPS)-triggered induction of several chemokines and cytokines, including the anti-inflammatory cytokine, interleukin-10 (IL-10). No production of proinflammatory TNF-α is observed. However, GO elicits caspase-dependent IL-1 β expression, a hallmark of inflammasome activation, in LPS-primed macrophages. Furthermore, GO-triggered IL-1 β production requires NADPH oxidase-generated reactive oxygen species and cellular uptake of GO and is accompanied by cathepsin B release and K+ efflux. Using THP-1 knockdown cells, a role for the inflammasome sensor, NLRP3, the adaptor protein, ASC, and caspase-1 for GO-induced IL-1β secretion is demonstrated. Finally, these studies show that inflammasome activation is independent of the lateral dimensions of the GO sheets. These studies provide novel insights regarding the immunomodulatory properties of endotoxin-free GO.
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Affiliation(s)
- Sourav P. Mukherjee
- Nanosafety & Nanomedicine Laboratory; Institute of Environmental Medicine; Karolinska Institutet; 171 77 Stockholm Sweden
| | - Kostas Kostarelos
- Nanomedicine Laboratory; Faculty of Medical & Human Sciences and National Graphene Institute; University of Manchester; Manchester M13 9PL UK
| | - Bengt Fadeel
- Nanosafety & Nanomedicine Laboratory; Institute of Environmental Medicine; Karolinska Institutet; 171 77 Stockholm Sweden
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Kuang J, Xie M, Wei X. The NALP3 inflammasome is required for collagen synthesis via the NF‑κB pathway. Int J Mol Med 2018; 41:2279-2287. [PMID: 29393339 DOI: 10.3892/ijmm.2018.3404] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2017] [Accepted: 01/08/2018] [Indexed: 02/05/2023] Open
Abstract
The NALP3 inflammasome interacts with various immune and cell metabolic pathways and may participate in pulmonary fibrosis. However, little is known on its regulatory mechanism with respect to collagen synthesis. The objective of the present study was to investigate whether NALP3 inflammasome activation is involved in H2O2‑mediated collagen synthesis, in addition to examining the possible cell signaling mechanisms underlying this effect. It was demonstrated that the NF‑κB signaling pathway was activated under conditions of H2O2‑mediated oxidative stress in NIH‑3T3 mouse embryonic fibroblasts. H2O2‑exposed fibroblasts exhibited activated NALP3 inflammasomes via increased NALP3, apoptosis‑associated Speck‑like protein and caspase‑1 expression and the secretion of interleukin‑1β. H2O2 also elevated α‑SMA and type I collagen expression. In vitro silencing of NALP3 attenuated the degradation of IκBα and decreased the synthesis of type I collagen. Furthermore, the NALP3 inflammasome was found to be activated in bleomycin‑induced pulmonary fibrosis in mice, and this activation was relieved by a nuclear factor (NF)‑κB inhibitor. Taken together, these findings indicate that the NALP3 inflammasome is involved in H2O2‑induced type I collagen synthesis, which is mediated by the NF‑κB signaling pathway. Additionally, the NALP3 inflammasome contributes to the development of bleomycin‑induced pulmonary fibrosis.
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Affiliation(s)
- Ju Kuang
- Department of Respiratory Medicine, West China Hospital, Sichuan University, Chengdu, Sichuan 610041, P.R. China
| | - Min Xie
- Department of Respiratory Medicine, West China Hospital, Sichuan University, Chengdu, Sichuan 610041, P.R. China
| | - Xiaolin Wei
- Department of Respiratory Medicine, West China Hospital, Sichuan University, Chengdu, Sichuan 610041, P.R. China
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45
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Mesenchymal Stem Cells Attenuate Radiation-Induced Brain Injury by Inhibiting Microglia Pyroptosis. BIOMED RESEARCH INTERNATIONAL 2017; 2017:1948985. [PMID: 30009163 PMCID: PMC6020670 DOI: 10.1155/2017/1948985] [Citation(s) in RCA: 51] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/19/2017] [Accepted: 11/08/2017] [Indexed: 01/01/2023]
Abstract
Radiation-induced brain injury (RI) commonly occurs in patients who received head and neck radiotherapy. However, the mechanism of RI remains unclear. We aimed to evaluate whether pyroptosis was involved in RI and the impact of mesenchymal stem cells (MSCs) on it. BALB/c male mice (6–8 weeks) were cranially irradiated (15 Gy), and MSCs were transplanted into the bilateral cortex 2 days later; then mice were sacrificed 1 month later. Meanwhile, irradiated BV-2 microglia cells (10 Gy) were cocultured with MSCs for 24 hours. We observed that irradiated mice brains presented NLRP3 and caspase-1 activation. RT-PCR then indicated that it mainly occurred in microglia cells but not in neurons. Further, irradiated BV-2 cells showed pyroptosis and increased production of IL-18 and IL-1β. RT-PCR also demonstrated an increased expression of several inflammasome genes in irradiated BV-2 cells, including NLRP3 and AIM2. Particularly, NLRP3 was activated. Knockdown of NLRP3 resulted in decreased LDH release. Noteworthily, in vivo, MSCs transplantation alleviated radiation-induced NLRP3 and caspase-1 activation. Moreover, in vitro, MSCs could decrease caspase-1 dependent pyroptosis, NLRP3 inflammasome activation, and ROS production induced by radiation. Thus, our findings proved that microglia pyroptosis occurred in RI. MSCs may act as a potent therapeutic tool in attenuating pyroptosis.
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Abstract
Pyroptosis is a kind of programmed cell death mediated by caspases-1/4/5/11. Pancreatic acinar cell death is the major pathophysiological change in early acute pancreatitis (AP), which is an important factor determining its progression and prognosis. Different ways of cell death affect AP progression differently. At present, most scholars believe that the increased proportion of apoptotic cells can mitigate AP, while necrosis has an opposite effect. In our early study, we used electron microscope to observe the morphology of acinar cells and found that there are many cells consistent with the characteristics of pyroptosis. The expression of caspase-1 was analyzed via immunohistochemical staining in acinar cells in AP, which suggests that pyroptosis may play a role in acinar cell death and inflammation. In this review, we review the recent findings regarding the occurrence and modulation of pyroptosis by caspase-1 and inflammsome, and in particular, discuss the potential mechanism and clinical significance of pyroptosis in AP, with an aim to provide new clues to the clinical diagnosis and therapy of this disease.
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Affiliation(s)
- Xiang-Ren Jin
- Department of Pancreatic and Biliary Surgery, the First Affiliated Hospital of Harbin Medical University, Harbin 150000, Heilongjiang Province, China
| | - Bei Sun
- Department of Pancreatic and Biliary Surgery, the First Affiliated Hospital of Harbin Medical University, Harbin 150000, Heilongjiang Province, China
| | - Xue-Wei Bai
- Department of Pancreatic and Biliary Surgery, the First Affiliated Hospital of Harbin Medical University, Harbin 150000, Heilongjiang Province, China
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47
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Jin XR, Xu BR, Hou GF, Sun B, Bai XW. Mesenchymal stem cell transplantation for treatment of pancreatitis. Shijie Huaren Xiaohua Zazhi 2017; 25:2714-2720. [DOI: 10.11569/wcjd.v25.i30.2714] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
Mesenchymal stem cells (MSCs) are one of the main cell resources of regenerative medicine. Recently, MSCs have been used to treat many diseases, such as Alzheimer's disease, inflammatory bowel disease and cirrhosis, with certain curative effects achieved. MSCs can not only secrete a variety of anti-inflammatory cytokines, but also reduce the secretion of inflammatory factors. Therefore, acute pancreatitis (AP) and chronic pancreatitis (CP) can be treated with MSCs. Several studies have investigated the effect of MSC therapy on acute and CP. MSCs exert a therapeutic effect on AP perhaps via two pathways: anti-inflammatory pathway and anti-apoptotic pathway. However, the mechanism for the therapeutic effect of MSCs on CP is unclear. In this review, we will summarize the progress in MSC treatment of AP and CP.
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Affiliation(s)
- Xiang-Ren Jin
- Department of Pancreatic and Biliary Surgery, the First Affiliated Hospital of Harbin Medical University, Harbin 150001, Heilongjiang Province, China
| | - Bo-Ran Xu
- Department of Pancreatic and Biliary Surgery, the First Affiliated Hospital of Harbin Medical University, Harbin 150001, Heilongjiang Province, China
| | - Guo-Fang Hou
- Department of Pancreatic and Biliary Surgery, the First Affiliated Hospital of Harbin Medical University, Harbin 150001, Heilongjiang Province, China
| | - Bei Sun
- Department of Pancreatic and Biliary Surgery, the First Affiliated Hospital of Harbin Medical University, Harbin 150001, Heilongjiang Province, China
| | - Xue-Wei Bai
- Department of Pancreatic and Biliary Surgery, the First Affiliated Hospital of Harbin Medical University, Harbin 150001, Heilongjiang Province, China
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48
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Duan J, Hu H, Feng L, Yang X, Sun Z. Silica nanoparticles inhibit macrophage activity and angiogenesis via VEGFR2-mediated MAPK signaling pathway in zebrafish embryos. CHEMOSPHERE 2017; 183:483-490. [PMID: 28570891 DOI: 10.1016/j.chemosphere.2017.05.138] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/20/2016] [Revised: 05/16/2017] [Accepted: 05/23/2017] [Indexed: 06/07/2023]
Abstract
The safety evaluation of silica nanoparticles (SiNPs) are getting great attention due to its widely-used in food sciences, chemical industry and biomedicine. However, the adverse effect and underlying mechanisms of SiNPs on cardiovascular system, especially on angiogenesis is still unclear. This study was aimed to illuminate the possible mechanisms of SiNPs on angiogenesis in zebrafish transgenic lines, Tg(fli-1:EGFP) and Albino. SiNPs caused the cardiovascular malformations in a dose-dependent manner via intravenous microinjection. The incidences of cardiovascular malformations were observed as: Pericardial edema > Bradycardia > Blood deficiency. The area of subintestinal vessels (SIVs) was significant reduced in SiNPs-treated groups, accompanied with the weaken expression of vascular endothelial cells in zebrafish embryos. Using neutral red staining, the quantitative number of macrophage was declined; whereas macrophage inhibition rate was elevated in a dose-dependent way. Furthermore, SiNPs significantly decreased the mRNA expression of macrophage activity related gene, macrophage migration inhibitory factor (MIF) and the angiogenesis related gene, vascular endothelial growth factor receptor 2 (VEGFR2). The protein levels of p-Erk1/2 and p-p38 MAPK were markedly decreased in zebrafish exposed to SiNPs. Our results implicate that SiNPs inhibited the macrophage activity and angiogenesis via the downregulation of MAPK singaling pathway.
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Affiliation(s)
- Junchao Duan
- Department of Toxicology and Sanitary Chemistry, School of Public Health, Capital Medical University, Beijing, PR China; Beijing Key Laboratory of Environmental Toxicology, Capital Medical University, Beijing, PR China.
| | - Hejing Hu
- Department of Toxicology and Sanitary Chemistry, School of Public Health, Capital Medical University, Beijing, PR China; Beijing Key Laboratory of Environmental Toxicology, Capital Medical University, Beijing, PR China
| | - Lin Feng
- Department of Toxicology and Sanitary Chemistry, School of Public Health, Capital Medical University, Beijing, PR China; Beijing Key Laboratory of Environmental Toxicology, Capital Medical University, Beijing, PR China
| | - Xiaozhe Yang
- Department of Toxicology and Sanitary Chemistry, School of Public Health, Capital Medical University, Beijing, PR China; Beijing Key Laboratory of Environmental Toxicology, Capital Medical University, Beijing, PR China
| | - Zhiwei Sun
- Department of Toxicology and Sanitary Chemistry, School of Public Health, Capital Medical University, Beijing, PR China; Beijing Key Laboratory of Environmental Toxicology, Capital Medical University, Beijing, PR China
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49
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Naji A, Suganuma N, Espagnolle N, Yagyu K, Baba N, Sensebé L, Deschaseaux F. Rationale for Determining the Functional Potency of Mesenchymal Stem Cells in Preventing Regulated Cell Death for Therapeutic Use. Stem Cells Transl Med 2016; 6:713-719. [PMID: 28297565 PMCID: PMC5442793 DOI: 10.5966/sctm.2016-0289] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2016] [Accepted: 09/19/2016] [Indexed: 12/19/2022] Open
Abstract
Mesenchymal stem (stromal) cells (MSCs) are being investigated for treating degenerative and inflammatory disorders because of their reparative and immunomodulatory properties. Intricate mechanisms relate cell death processes with immune responses, which have implications for degenerative and inflammatory conditions. We review the therapeutic value of MSCs in terms of preventing regulated cell death (RCD). When cells identify an insult, specific intracellular pathways are elicited for execution of RCD processes, such as apoptosis, necroptosis, and pyroptosis. To some extent, exacerbated RCD can provoke an intense inflammatory response and vice versa. Emerging studies are focusing on the molecular mechanisms deployed by MSCs to ameliorate the survival, bioenergetics, and functions of unfit immune or nonimmune cells. Given these aspects, and in light of MSC actions in modulating cell death processes, we suggest the use of novel functional in vitro assays to ensure the potency of MSCs for preventing RCD. Such analyses should be associated with existing functional assays measuring the anti‐inflammatory capabilities of MSCs in vitro. MSCs selected on the basis of two in vitro functional criteria (i.e., prevention of inflammation and RCD) could possess optimal therapeutic efficacy in vivo. In addition, we underline the implications of these perspectives in clinical studies of MSC therapy, with particular focus on acute respiratory distress syndrome. Stem Cells Translational Medicine2017;6:713–719
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Affiliation(s)
- Abderrahim Naji
- Center for Innovative and Translational Medicine, Kochi Medical School, Kochi University, Kochi, Japan
- Department of Environmental Medicine, Kochi Medical School, Kochi University, Kochi, Japan
| | - Narufumi Suganuma
- Center for Innovative and Translational Medicine, Kochi Medical School, Kochi University, Kochi, Japan
- Department of Environmental Medicine, Kochi Medical School, Kochi University, Kochi, Japan
| | - Nicolas Espagnolle
- STROMALab, INSERM U1031, EFS Pyrénées‐Méditerranée, Université de Toulouse, Toulouse, France
| | - Ken‐ichi Yagyu
- Science Research Center, Division of Biological Research, Life Sciences and Functional Materials, Kochi Medical School, Kochi University, Kochi, Japan
| | - Nobuyasu Baba
- Center for Innovative and Translational Medicine, Kochi Medical School, Kochi University, Kochi, Japan
| | - Luc Sensebé
- STROMALab, INSERM U1031, EFS Pyrénées‐Méditerranée, Université de Toulouse, Toulouse, France
| | - Frédéric Deschaseaux
- STROMALab, INSERM U1031, EFS Pyrénées‐Méditerranée, Université de Toulouse, Toulouse, France
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50
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Bomhard EM. The toxicology of indium tin oxide. ENVIRONMENTAL TOXICOLOGY AND PHARMACOLOGY 2016; 45:282-294. [PMID: 27343753 DOI: 10.1016/j.etap.2016.06.011] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/23/2016] [Revised: 06/06/2016] [Accepted: 06/09/2016] [Indexed: 06/06/2023]
Abstract
Indium tin oxide (ITO) is a technologically important semiconductor. An increasing number of cases of severe lung effects (characterized by pulmonary alveolar proteinosis and/or interstitial fibrosis) in ITO-exposed workers warrants a review of the toxicological hazards. Short- and long-term inhalation studies in rats and mice revealed persistent alveolar proteinosis, inflammation and fibrosis in the lungs down to concentrations as low as 0.01mg/m(3). In rats, the incidences of bronchiolo-alveolar adenomas and carcinomas were significantly increased at all concentrations. In mice, ITO was not carcinogenic. A few bronchiolo-alveolar adenomas occurring after repeated intratracheal instillation of ITO to hamsters have to be interpreted as treatment-related. In vitro and in vivo studies on the formation of reactive oxygen species suggest epigenetic effects as cause of the lung tumor development. Repeated intratracheal instillation of ITO to hamsters slightly affected the male sexual organs, which might be interpreted as a secondary effect of the lung damage. Epidemiological and medical surveillance studies, serum/blood indium levels in workers as well as data on the exposure to airborne indium concentrations indicate a need for measures to reduce exposure at ITO workplaces.
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Affiliation(s)
- Ernst M Bomhard
- REACh ChemConsult GmbH, Strehlener Str. 14, D-01069 Dresden, Germany.
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