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Yang S, Lan L, Gong M, Yang K, Li X. An asymmetric wettable PCL/chitosan composite scaffold loaded with IGF-2 for wound dressing. J Biomater Appl 2022; 37:577-587. [PMID: 35730493 DOI: 10.1177/08853282221110315] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
An effective dressing is essential for wound healing. In fact, the wettability performance is one of the most important factors of a wound dressing. The fundamental functions of a wound dressing involve the absorption of excess exudates and maintenance of optimal moisture at the wound by controlling water evaporation. Here, we designed a type of chitosan (CS) sponge and PCL nanofibrous membrane composite dressing with asymmetric wettability surfaces as wound healing materials for biomedical applications. The hydrophobic surfaces of the composite dressing were waterproof and could efficiently control the water vapor transmission rate, whereas the hydrophilic surface of the CS sponge had good cytocompatibility and water-absorbing capability. Insulin-like growth factor-2 (IGF-2) was added to the CS sponge, and exhibited a stimulatory effect on fibroblasts migration and proliferation. Therefore, the fabricated CS sponge and PCL membrane composite dressing had excellent cytocompatibility, vapor transmission rate, and liquid absorption and asymmetric wettability, suggesting its potential as a promising alternative to traditional wound dressing.
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Affiliation(s)
- Shuang Yang
- Institute of Biomedical Engineering, Chongqing Engineering Laboratory of Nano/Micro Biological Medicine Detection Technology, 66564Chongqing University of Science and Technology, Chongqing, China
| | - Linhao Lan
- Institute of Biomedical Engineering, Chongqing Engineering Laboratory of Nano/Micro Biological Medicine Detection Technology, 66564Chongqing University of Science and Technology, Chongqing, China
| | - Mingda Gong
- 66307Department of Military Traffic Injury Prevention, Daping Hospital, Army Medical University, Chongqing, China
| | - Ke Yang
- Institute of Biomedical Engineering, Chongqing Engineering Laboratory of Nano/Micro Biological Medicine Detection Technology, 66564Chongqing University of Science and Technology, Chongqing, China
| | - Xiaoming Li
- 66307Department of Military Traffic Injury Prevention, Daping Hospital, Army Medical University, Chongqing, China
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Cheng X, Wang L, Wen X, Gao L, Li G, Chang G, Qin S, Zhang D. TNAP is a novel regulator of cardiac fibrosis after myocardial infarction by mediating TGF-β/Smads and ERK1/2 signaling pathways. EBioMedicine 2021; 67:103370. [PMID: 33971401 DOI: 10.1016/j.ebiom.2021.103370] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2020] [Revised: 04/04/2021] [Accepted: 04/15/2021] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND Cardiac fibrosis is the most important pathogenesis leading to cardiac remodeling and heart failure after myocardial infarction (MI). Tissue nonspecific alkaline phosphatase (TNAP) has recently been recognized as a potential prognostic factor for MI. Nevertheless, the role of TNAP in cardiac fibrosis after MI has not been explicitly delineated. METHODS A systematic review and meta-analysis was conducted to assess the effect of serum TNAP levels on mortality in patients with ischemic heart disease (IHD). A correlation analysis was performed to investigate the relationship between serum levels of TNAP and biomarkers of fibrosis. Heart biopsies from patients with MI and a mouse model of MI were used to detect the expression and distribution of TNAP. Furthermore, we established adenovirus-mediated knockdown and overexpression of TNAP, using a combination of in vivo and in vitro studies in mice, to determine the role and mechanism of TNAP in cardiac fibrosis after MI. In the in vitro studies, cardiac fibroblasts were cultured on soft plates. FINDINGS After searching the main databases and performing a detailed assessment of the full-text articles, eight studies with 14,816 individuals were included in the quantitative analysis. We found that a high serum TNAP level was associated with an increased risk of mortality in patients with IHD and MI. The correlation analysis revealed a positive correlation between serum TNAP levels and the concentration of fibrosis biomarkers (PICP/PIIINP). The expression of TNAP was upregulated in the myocardium of patients with MI and in a mouse model of MI, accompanied by fibroblast activation and the deposition of collagen fibers. In the in vivo study, TNAP knockdown ameliorated cardiac fibrosis and improved cardiac function in mice. TNAP overexpression aggravated cardiac fibrosis and worsened cardiac function. In the in vitro study, TNAP promoted cardiac fibroblast differentiation, migration and proliferation. Mechanistically, the pro-fibrotic effect of TNAP on cardiac fibroblasts was at least partially achieved by activating the TGF-β1/Smads and ERK1/2 signaling pathways. INTERPRETATION Based on these findings, TNAP plays an important pro-fibrotic role in cardiac fibrosis after MI by activating TGF-β/Smads and ERK1/2 signaling, indicating that it functions as a potential regulator of and therapeutic target in cardiac fibrosis. FUNDING This work was supported by the National Natural Science Foundation of China.
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Affiliation(s)
- Xiaocheng Cheng
- Department of Cardiology, the First Affiliated Hospital of Chongqing Medical University, Chongqing, 400016, China
| | - Liyou Wang
- Department of Cardiology, the First Affiliated Hospital of Chongqing Medical University, Chongqing, 400016, China; The Second Ward of Cardiovascular Medicine Department, Ankang City Central Hospital, Ankang, China
| | - Xuesong Wen
- Department of Cardiology, the First Affiliated Hospital of Chongqing Medical University, Chongqing, 400016, China
| | - Lei Gao
- Department of Cardiology, the First Affiliated Hospital of Chongqing Medical University, Chongqing, 400016, China
| | - Guoxing Li
- Department of Cardiology, the First Affiliated Hospital of Chongqing Medical University, Chongqing, 400016, China
| | - Guanglei Chang
- Department of Cardiology, the First Affiliated Hospital of Chongqing Medical University, Chongqing, 400016, China
| | - Shu Qin
- Department of Cardiology, the First Affiliated Hospital of Chongqing Medical University, Chongqing, 400016, China
| | - Dongying Zhang
- Department of Cardiology, the First Affiliated Hospital of Chongqing Medical University, Chongqing, 400016, China.
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Wu Q, Bai P, Xia Y, Xia Y, Xu B, Dai K, Zheng Z, Guo MSS, Fung KWC, Dong TTX, Tsim KWK. Capsaicin Inhibits the Expression of Melanogenic Proteins in Melanocyte via Activation of TRPV1 Channel: Identifying an Inhibitor of Skin Melanogenesis. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2020; 68:14863-14873. [PMID: 33280383 DOI: 10.1021/acs.jafc.0c06321] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Chili pepper belongs to the genus Capsicum of Solanaceae family. Capsaicin is the primary capsaicinoid in placenta and flesh of chili pepper fruit, which has been shown to have various pharmacological functions, including gastric protection, anti-inflammation, and obesity treatment. Here, we revealed that capsaicin as well as chilli extract was able to inhibit synthesis of melanin in melanocytes. In cultured melanocytes, the melanin content was reduced to 54 ± 6.55% and 42 ± 7.41% with p < 0.001 under treatment of 50 μM capsaicin for 24 and 72 h, respectively. In parallel, the protein levels of tyrosinase and tyrosinase-related protein-1 were reduced to 62 ± 8.35% and 48 ± 8.92% with p < 0.001. Such an inhibitory effect of capsaicin was mediated by activation of transient receptor potential vanilloid 1-induced phosphorylation of extracellular signal-regulated kinase. This resulted in a degradation of microphthalmia-associated transcription factor, leading to reduction of melanogenic enzymes and melanin. These results revealed that capsaicin could be an effective inhibitor for skin melanogenesis. Hence, chili pepper, as our daily food, has potential in dermatological application, and capsaicin should be considered as a safe agent in treating hyperpigmentation problems.
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Affiliation(s)
- Qiyun Wu
- Shenzhen Key Laboratory of Edible and Medicinal Bioresources, HKUST Shenzhen Research Institute, Hi-Tech Park, Nanshan, Shenzhen 518057, China
- Division of Life Science and Center for Chinese Medicine, The Hong Kong University of Science and Technology, Clear Water Bay Road, Hong Kong, China
| | - Panzhu Bai
- Shenzhen Key Laboratory of Edible and Medicinal Bioresources, HKUST Shenzhen Research Institute, Hi-Tech Park, Nanshan, Shenzhen 518057, China
- Division of Life Science and Center for Chinese Medicine, The Hong Kong University of Science and Technology, Clear Water Bay Road, Hong Kong, China
| | - Yiteng Xia
- Shenzhen Key Laboratory of Edible and Medicinal Bioresources, HKUST Shenzhen Research Institute, Hi-Tech Park, Nanshan, Shenzhen 518057, China
- Division of Life Science and Center for Chinese Medicine, The Hong Kong University of Science and Technology, Clear Water Bay Road, Hong Kong, China
| | - Yingjie Xia
- Shenzhen Key Laboratory of Edible and Medicinal Bioresources, HKUST Shenzhen Research Institute, Hi-Tech Park, Nanshan, Shenzhen 518057, China
- Division of Life Science and Center for Chinese Medicine, The Hong Kong University of Science and Technology, Clear Water Bay Road, Hong Kong, China
| | - Bowen Xu
- Division of Life Science and Center for Chinese Medicine, The Hong Kong University of Science and Technology, Clear Water Bay Road, Hong Kong, China
| | - Kun Dai
- Division of Life Science and Center for Chinese Medicine, The Hong Kong University of Science and Technology, Clear Water Bay Road, Hong Kong, China
| | - Zhongyu Zheng
- Division of Life Science and Center for Chinese Medicine, The Hong Kong University of Science and Technology, Clear Water Bay Road, Hong Kong, China
| | - Maggie S S Guo
- Division of Life Science and Center for Chinese Medicine, The Hong Kong University of Science and Technology, Clear Water Bay Road, Hong Kong, China
| | - Kelly W C Fung
- Division of Life Science and Center for Chinese Medicine, The Hong Kong University of Science and Technology, Clear Water Bay Road, Hong Kong, China
| | - Tina T X Dong
- Shenzhen Key Laboratory of Edible and Medicinal Bioresources, HKUST Shenzhen Research Institute, Hi-Tech Park, Nanshan, Shenzhen 518057, China
- Division of Life Science and Center for Chinese Medicine, The Hong Kong University of Science and Technology, Clear Water Bay Road, Hong Kong, China
| | - Karl W K Tsim
- Shenzhen Key Laboratory of Edible and Medicinal Bioresources, HKUST Shenzhen Research Institute, Hi-Tech Park, Nanshan, Shenzhen 518057, China
- Division of Life Science and Center for Chinese Medicine, The Hong Kong University of Science and Technology, Clear Water Bay Road, Hong Kong, China
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Li P, Wang QS, Zhai Y, Xiong RP, Chen X, Liu P, Peng Y, Zhao Y, Ning YL, Yang N, Zhou YG. Ski mediates TGF-β1-induced fibrosarcoma cell proliferation and promotes tumor growth. J Cancer 2020; 11:5929-5940. [PMID: 32922535 PMCID: PMC7477421 DOI: 10.7150/jca.46074] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2020] [Accepted: 07/20/2020] [Indexed: 11/05/2022] Open
Abstract
Background: TGF-β1 promotes cell proliferation in only some tumors and exerts bidirectional regulatory effects on the proliferation of fibroblasts. This study intends to explore whether the mechanism is related to increased expression of Ski. Methods: Cell proliferation of the fibrosarcoma cell line L929 was assessed with an ELISA BrdU kit. The mRNA and protein expression levels of the corresponding factors were measured by RT-qPCR, immunohistochemistry or Western blotting in vitro and in vivo. Additionally, c-Ski was knocked down using RNAi. The expression of Ski in human dermatofibrosarcoma protuberans (DFSP) specimens was measured by immunohistochemistry. Results: TGF-β1 promoted the continued proliferation of L929 cells in a dose-dependent manner, with increased c-Ski expression levels. Conversely, inhibition of c-Ski significantly abrogated this unidirectional effect, significantly inhibited the decrease in p21 protein levels and did not affect the increase in p-Smad2/3 levels upon TGF-β1 treatment. Similarly, inhibition of c-Ski significantly abrogated the growth-promoting effect of TGF-β1 on xenograft tumors. Furthermore, we found that high expression of Ski in DFSP was correlated with a low degree of tumor differentiation. Conclusions: Our data reveal that high c-Ski expression is a cause of TGF-β1-promoted proliferation in fibrosarcoma tumor cells and show that inhibiting Ski expression might be effective for treating tumors with high Ski levels.
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Affiliation(s)
- Ping Li
- Department of Army Occupational Disease, State Key Laboratory of Trauma, Burn and Combined Injury, Daping Hospital, Army Medical University (Third Military Medical University), Chongqing 400042, People's Republic of China
| | - Qiu-Shi Wang
- Department of Army Occupational Disease, State Key Laboratory of Trauma, Burn and Combined Injury, Daping Hospital, Army Medical University (Third Military Medical University), Chongqing 400042, People's Republic of China.,Department of Pathology, Daping Hospital, Army Medical University (Third Military Medical University), Chongqing 400042, People's Republic of China
| | - Yu Zhai
- Department of Army Occupational Disease, State Key Laboratory of Trauma, Burn and Combined Injury, Daping Hospital, Army Medical University (Third Military Medical University), Chongqing 400042, People's Republic of China
| | - Ren-Ping Xiong
- Department of Army Occupational Disease, State Key Laboratory of Trauma, Burn and Combined Injury, Daping Hospital, Army Medical University (Third Military Medical University), Chongqing 400042, People's Republic of China
| | - Xing Chen
- Department of Army Occupational Disease, State Key Laboratory of Trauma, Burn and Combined Injury, Daping Hospital, Army Medical University (Third Military Medical University), Chongqing 400042, People's Republic of China
| | - Ping Liu
- Department of Army Occupational Disease, State Key Laboratory of Trauma, Burn and Combined Injury, Daping Hospital, Army Medical University (Third Military Medical University), Chongqing 400042, People's Republic of China
| | - Yan Peng
- Department of Army Occupational Disease, State Key Laboratory of Trauma, Burn and Combined Injury, Daping Hospital, Army Medical University (Third Military Medical University), Chongqing 400042, People's Republic of China
| | - Yan Zhao
- Department of Army Occupational Disease, State Key Laboratory of Trauma, Burn and Combined Injury, Daping Hospital, Army Medical University (Third Military Medical University), Chongqing 400042, People's Republic of China
| | - Ya-Lei Ning
- Department of Army Occupational Disease, State Key Laboratory of Trauma, Burn and Combined Injury, Daping Hospital, Army Medical University (Third Military Medical University), Chongqing 400042, People's Republic of China
| | - Nan Yang
- Department of Army Occupational Disease, State Key Laboratory of Trauma, Burn and Combined Injury, Daping Hospital, Army Medical University (Third Military Medical University), Chongqing 400042, People's Republic of China
| | - Yuan-Guo Zhou
- Department of Army Occupational Disease, State Key Laboratory of Trauma, Burn and Combined Injury, Daping Hospital, Army Medical University (Third Military Medical University), Chongqing 400042, People's Republic of China
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Wang J, Han M, Han SX, Zhi C, Gao S, Li Y. Effect of c-Ski on atrial remodelling in a rapid atrial pacing canine model. J Cell Mol Med 2019; 24:1795-1803. [PMID: 31815360 PMCID: PMC6991632 DOI: 10.1111/jcmm.14876] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2019] [Accepted: 09/01/2019] [Indexed: 12/21/2022] Open
Abstract
Atrial fibrosis is an important factor in the initiation and maintenance of atrial fibrillation (AF); therefore, understanding the pathogenesis of atrial fibrosis may reveal promising therapeutic targets for AF. In this study, we successfully established a rapid atrial pacing canine model and found that the inducibility and duration of AF were significantly reduced by the overexpression of c‐Ski, suggesting that this approach may have therapeutic effects. c‐Ski was found to be down‐regulated in the atrial tissues of the rapid atrial pacing canine model. We artificially up‐regulated c‐Ski expression with a c‐Ski–overexpressing adenovirus. Haematoxylin and eosin, Masson's trichrome and picrosirius red staining showed that c‐Ski overexpression alleviated atrial fibrosis. Furthermore, we found that the expression levels of collagen III and α‐SMA were higher in the groups of dogs subjected to right‐atrial pacing, and this increase was attenuated by c‐Ski overexpression. In addition, c‐Ski overexpression decreased the phosphorylation of smad2, smad3 and p38 MAPK (p38α and p38β) as well as the expression of TGF‐β1 in atrial tissues, as shown by a comparison of the right‐atrial pacing + c‐Ski‐overexpression group to the control group with right‐atrial pacing only. These results suggest that c‐Ski overexpression improves atrial remodelling in a rapid atrial pacing canine model by suppressing TGF‐β1–Smad signalling and p38 MAPK activation.
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Affiliation(s)
- Juan Wang
- Department of Cardiology, The Fifth Affiliated Hospital to Xin Jiang Medical University, Urumchi, Xin Jiang, China
| | - Min Han
- Xin Jiang Medical University, Urumchi, Xin Jiang, China
| | - Su-Xia Han
- Department of Cardiovascular Medicine, Shanghai Pudong New Area People's Hospital Affiliated to Shanghai Health University, Shanghai, China
| | - Cuiju Zhi
- Department of Cardiovascular Medicine, Shanghai Pudong New Area People's Hospital Affiliated to Shanghai Health University, Shanghai, China
| | - Suli Gao
- Department of Cardiovascular Medicine, Shanghai Pudong New Area People's Hospital Affiliated to Shanghai Health University, Shanghai, China
| | - Yao Li
- Department of Cardiovascular Medicine, Shanghai Pudong New Area People's Hospital Affiliated to Shanghai Health University, Shanghai, China
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