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Fan Y, Gao L, Huang Y, Zhao L, Zhao Y, Wang X, Mo D, Lu H, Wang D. Effects and Significance of Dicliptera chinensis Polysaccharide on the Expression of Transforming Growth Factor β1/Connective Tissue Growth Factor Pathway in the Masseter and Head and Neck Skin of Rats With Radiation-Induced Fibrosis. Int Dent J 2024:S0020-6539(24)00163-1. [PMID: 38991877 DOI: 10.1016/j.identj.2024.06.011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2024] [Revised: 05/26/2024] [Accepted: 06/13/2024] [Indexed: 07/13/2024] Open
Abstract
PURPOSE To investigate whether Dicliptera chinensis polysaccharide (DCP) can alleviate radiation-induced fibrosis of masseter and head and neck skin. METHODS SD rats were divided into the control, the irradiation (IR), the IR + low dose DCP (200 mg/kg), and the IR + high dose DCP (400 mg/kg) groups. The head and neck of rats in the last 3 groups received a single dose of 18 Gy X-ray. At 1st, 2nd, 4th week (w) after radiation, haematoxylin and eosin staining were performed on masseter and skin to observe the histopathological changes; immunohistochemistry staining was performed to observe the pathological changes of the skin; Masson staining was performed on masseter and skin to observe the collagen deposition; western blot analysis was used on masseter to calculate the relative transforming growth factor β1 (TGF-β1), connective tissue growth factor (CTGF) expressions; ELISA was used to detect the contents of TGF-β1 and CTGF in skin and the contents of type I and type III collagens in masseter and skin. RESULTS In terms of skin, compared to the IR group, the IR + high-dose DCP group exhibited relatively smaller changes in skin structure, lower levels of TGF-β1 and CTGF; thinner skin thickness was observed at the 4th w after radiation; and the positive rates of collagen fibre and the optical densities of type I and type III collagens were lower at the 2nd and 4th w. For the masseter, compared to the IR group, the morphological changes were improved and the expression levels of TGF-β1 and CTGF proteins decreased in the 2 DCP dose groups at 2nd and 4th w. CONCLUSION DCP can reduce the formation and accumulation of type I and type III collagens after IR and ameliorate radiation-induced fibrosis of masseter and skin by down-regulating the expressions of TGF-β1 and CTGF.
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Affiliation(s)
- Yiyang Fan
- College of Stomatology, Hospital of Stomatology, Guangxi Medical University, Nanning, China; Guangxi Key Laboratory of the Rehabilitation and Reconstruction for Oral and Maxillofacial Research, Guangxi Clinical Research Center for Craniofacial Deformity, Guangxi Key Laboratory of Oral and Maxillofacial Surgery Deformity, Nanning, China; Yichang Central People's Hospital, The First College of Clinical Medical Science, China Three Gorges University, Yichang, China
| | - Linjing Gao
- The First Affiliated Hospital of Guangdong Pharmaceutical University, Guangzhou, China
| | - Yude Huang
- College of Stomatology, Hospital of Stomatology, Guangxi Medical University, Nanning, China; Guangxi Key Laboratory of the Rehabilitation and Reconstruction for Oral and Maxillofacial Research, Guangxi Clinical Research Center for Craniofacial Deformity, Guangxi Key Laboratory of Oral and Maxillofacial Surgery Deformity, Nanning, China
| | - Lixiang Zhao
- College of Stomatology, Hospital of Stomatology, Guangxi Medical University, Nanning, China; Guangxi Key Laboratory of the Rehabilitation and Reconstruction for Oral and Maxillofacial Research, Guangxi Clinical Research Center for Craniofacial Deformity, Guangxi Key Laboratory of Oral and Maxillofacial Surgery Deformity, Nanning, China
| | - Yanfei Zhao
- College of Stomatology, Hospital of Stomatology, Guangxi Medical University, Nanning, China; Guangxi Key Laboratory of the Rehabilitation and Reconstruction for Oral and Maxillofacial Research, Guangxi Clinical Research Center for Craniofacial Deformity, Guangxi Key Laboratory of Oral and Maxillofacial Surgery Deformity, Nanning, China
| | - Xian Wang
- College of Stomatology, Hospital of Stomatology, Guangxi Medical University, Nanning, China; Guangxi Key Laboratory of the Rehabilitation and Reconstruction for Oral and Maxillofacial Research, Guangxi Clinical Research Center for Craniofacial Deformity, Guangxi Key Laboratory of Oral and Maxillofacial Surgery Deformity, Nanning, China
| | - Dongqin Mo
- College of Stomatology, Hospital of Stomatology, Guangxi Medical University, Nanning, China; Guangxi Key Laboratory of the Rehabilitation and Reconstruction for Oral and Maxillofacial Research, Guangxi Clinical Research Center for Craniofacial Deformity, Guangxi Key Laboratory of Oral and Maxillofacial Surgery Deformity, Nanning, China
| | - Haoyu Lu
- College of Stomatology, Hospital of Stomatology, Guangxi Medical University, Nanning, China; Guangxi Key Laboratory of the Rehabilitation and Reconstruction for Oral and Maxillofacial Research, Guangxi Clinical Research Center for Craniofacial Deformity, Guangxi Key Laboratory of Oral and Maxillofacial Surgery Deformity, Nanning, China
| | - Daiyou Wang
- College of Stomatology, Hospital of Stomatology, Guangxi Medical University, Nanning, China; Guangxi Key Laboratory of the Rehabilitation and Reconstruction for Oral and Maxillofacial Research, Guangxi Clinical Research Center for Craniofacial Deformity, Guangxi Key Laboratory of Oral and Maxillofacial Surgery Deformity, Nanning, China.
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Zhang Y, Hua L, Lin C, Yuan M, Xu W, Raj D. A, Venkidasamy B, Cespedes-Acuna CL, Nile SH, Yan G, Zheng H. Pien-Tze-Huang alleviates CCl4-induced liver fibrosis through the inhibition of HSC autophagy and the TGF-β1/Smad2 pathway. Front Pharmacol 2022; 13:937484. [PMID: 36188553 PMCID: PMC9523731 DOI: 10.3389/fphar.2022.937484] [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: 05/06/2022] [Accepted: 08/26/2022] [Indexed: 11/28/2022] Open
Abstract
Ethnopharmacological relevance: Pien-Tze-Huang (PZH)—a traditional Chinese medicine (TCM) compound—has been employed to treat various liver inflammation and tumors for over 10 decades. Interestingly, most of the pharmacological effects had been validated and explored toward liver ailment along with pro-inflammatory conditions and cancer at the cellular and molecular level to date. Aim of the study: The present study aimed to investigate the therapeutic effect of PZH on autophagy and TGF-β1 signaling pathways in rats with liver fibrosis and hepatic stellate cell line (HSC). Materials and methods: Male SD rats with carbon tetrachloride (CCl4)-induced liver fibrosis were used as the animal model. Next, PZH treatment was given for 8 weeks. Afterward, the therapeutic effects of PZH were analyzed through a hepatic tissue structure by hematoxylin-eosin (H&E), Van Gieson (VG) staining, and transmission electron microscopy (TEM), activity of ALT and AST by enzyme-associated immunosorbent assay as well. Subsequently, mRNA and protein expression were examined by quantitative polymerase chain reaction (qPCR), Western blotting, and immunohistochemistry (IHC). Then, the cell vitality of PZH-treated HSC and the expression of key molecules prevailing to autophagy were studied in vitro. Meanwhile, SM16 (a novel small molecular inhibitor which inhibits TGFβ-induced Smad2 phosphorylation) was employed to confirm PZH’s effects on the proliferation and autophagy of HSC. Results: PZH pharmacologically exerted anti-hepatic fibrosis effects as demonstrated by protecting hepatocytes and improving hepatic function. The results revealed the reduced production of extracellular collagen by adjusting the balance of matrix metalloproteinase (MMP) 2, MMP9, and tissue inhibitor of matrix metalloproteinase 1 (TIMP1) in PZH-treated CCl4-induced liver fibrosis. Interestingly, PZH inhibited the activation of HSC by down-regulating TGF-β1 and phosphorylating Smad2. Furthermore, PZH down-regulated yeast Atg6 (Beclin-1) and microtubule-associated protein light chain 3 (LC3) toward suppressing HSC autophagy, and PZH exhibited similar effects to that of SM16. Conclusion: To conclude, PZH alleviated CCl4-induced liver fibrosis to reduce the production of extracellular collagen and inhibiting the activation of HSC. In addition, their pharmacological mechanisms related to autophagy and TGF-β1/Smad2 signaling pathways were revealed for the first time.
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Affiliation(s)
- Yuqin Zhang
- Pharmacy College, Fujian University of Traditional Chinese Medicine, Fuzhou, Fujian, China
| | - Liping Hua
- Pharmacy College, Fujian University of Traditional Chinese Medicine, Fuzhou, Fujian, China
| | - Chunfeng Lin
- College of Integrative Medicine, Fujian University of Traditional Chinese Medicine, Fuzhou, Fujian, China
| | - Mingzhou Yuan
- College of Integrative Medicine, Fujian University of Traditional Chinese Medicine, Fuzhou, Fujian, China
| | - Wei Xu
- Pharmacy College, Fujian University of Traditional Chinese Medicine, Fuzhou, Fujian, China
| | - Anand Raj D.
- Department of Biotechnology, Karpagam Academy of Higher Education (Deemed to be University), Coimbatore, Tamil Nadu, India
| | - Baskar Venkidasamy
- Department of Oral and Maxillofacial Surgery, Saveetha Dental College and Hospitals, Saveetha Institute of Medical and Technical Sciences (SIMATS), Saveetha University, Chennai, Tamil Nadu, India
| | - Carlos L. Cespedes-Acuna
- Plant Biochemistry and Phytochemical Ecology Lab, Basic Sciences Department University of Bio Bio, Chillan, Chile
| | - Shivraj Hariram Nile
- School of Pharmaceutical Science, Zhejiang Chinese Medical University, Hangzhou, Zhejiang, China
- *Correspondence: Shivraj Hariram Nile, ; Guohong Yan, ; Haiyin Zheng,
| | - Guohong Yan
- Affiliated People’s Hospital of Fujian University of Traditional Chinese Medicine, Fuzhou, Fujian, China
- *Correspondence: Shivraj Hariram Nile, ; Guohong Yan, ; Haiyin Zheng,
| | - Haiyin Zheng
- College of Integrative Medicine, Fujian University of Traditional Chinese Medicine, Fuzhou, Fujian, China
- *Correspondence: Shivraj Hariram Nile, ; Guohong Yan, ; Haiyin Zheng,
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Melatonin Induces Autophagy in Amyotrophic Lateral Sclerosis Mice via Upregulation of SIRT1. Mol Neurobiol 2022; 59:4747-4760. [PMID: 35606613 DOI: 10.1007/s12035-022-02875-7] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2022] [Accepted: 05/12/2022] [Indexed: 12/29/2022]
Abstract
Amyotrophic lateral sclerosis (ALS) is the neurodegenerative disease that leads to the motor dysfunction damaged by both upper and lower motor neurons. The etiology and pathogenesis of ALS hasn't completely been understood yet up to now, the current study suggests that autophagy plays an important role in the development of ALS. Meanwhile, melatonin is found to inhibit the progression of ALS. To this end, this study aimed to investigate the potential relation between melatonin and autophagy in ALS. The in vivo model of ALS was established to investigate the effects of melatonin in ALS. The mRNA expressions were performed to detect by RT-qPCR, and the protein levels were tested by western blot and immunofluorescence histochemistry staining. The inflammatory cytokine was applied to detect by ELISA. The results showed that melatonin dose-dependently reversed the ALS-induced survival time shortened, weight loss and rotating rod latency decrease. The expressions of both SIRT1 and Beclin-1 as well as the ratio of LC3II/LC3I were significantly upregulated in the ALS mice, while melatonin reversed the upregulation of both SIRT1 and Beclin-1 expression and LC3II/LC3I ratio in a dose-dependent manner. In contrast, melatonin dose-dependently significantly restored the ALS-induced downregulation of p62. Furthermore, SIRT1 silencing notably reduced the effect of melatonin on Beclin-1, LC3II/LC3I, and p62. Melatonin induced autophagy in the ALS mice via the upregulation of SIRT1. Thus, melatonin might act as a new agent for the treatment of ALS.
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