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Ruan Y, Qiao J, Wang J, Liu Z. NREP, transcriptionally upregulated by HIF-1α, aggravates breast cancer cell growth and metastasis by promoting glycolysis. Cell Death Discov 2024; 10:210. [PMID: 38697993 PMCID: PMC11066005 DOI: 10.1038/s41420-024-01951-2] [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: 09/10/2023] [Revised: 04/06/2024] [Accepted: 04/08/2024] [Indexed: 05/05/2024] Open
Abstract
Breast cancer (BC) poses a great threat to women's health. Neuronal regeneration related protein (NREP) is a multifunctional protein that is involved in embryonic development, regeneration, and human disease. However, the biological function of NREP in tumors is rarely reported and its role in BC remains unknown. Bioinformatics analysis showed that NREP is highly expressed and closely correlated with poor survival in BC patients. Under hypoxic conditions, NREP was upregulated in BC cells, and this promotion was reversed by hypoxia-inducible factor HIF-1α suppression. Luciferase reporter system and chromatin immunoprecipitation assays confirmed that HIF-1α directly binds to the promoter of NREP to increase the transcriptional activity of NREP. NREP suppression inhibited cell proliferation, arrested the cell cycle at the G1/S phase, and promoted apoptosis and caspase-3 activity in BC cells. Suppression of NREP decreased the tube formation ability of HUVECs. In addition, NREP downregulation showed an inhibition effect on cell migration, invasion, and EMT of BC cells. In NREP overexpressed cells, all these changes were reversed. In vivo, animal experiments also confirmed that NREP promotes BC tumor growth and metastasis. In addition, NREP promoted cellular glycolysis and enhanced the levels of glucose consumption, ATP, lactate production, and glucose transporters expression in NREP-overexpressed BC cells. In summary, our results demonstrated that NREP could be transcriptional activated by HIF-1α, which may aggravate BC tumor growth and metastasis by promoting cellular glycolysis. This result suggested that NREP may play an essential part in BC progression.
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Affiliation(s)
- Yuxia Ruan
- Department of Breast Disease, Henan Breast Cancer Center, The Affiliated Cancer Hospital of Zhengzhou University & Henan Cancer Hospital, Zhengzhou, 450008, China
| | - Jianghua Qiao
- Department of Breast Disease, Henan Breast Cancer Center, The Affiliated Cancer Hospital of Zhengzhou University & Henan Cancer Hospital, Zhengzhou, 450008, China
| | - Jiabin Wang
- Department of Breast Disease, Henan Breast Cancer Center, The Affiliated Cancer Hospital of Zhengzhou University & Henan Cancer Hospital, Zhengzhou, 450008, China
| | - Zhenzhen Liu
- Department of Breast Disease, Henan Breast Cancer Center, The Affiliated Cancer Hospital of Zhengzhou University & Henan Cancer Hospital, Zhengzhou, 450008, China.
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Salnikov P, Korablev A, Serova I, Belokopytova P, Yan A, Stepanchuk Y, Tikhomirov S, Fishman V. Structural variants in the Epb41l4a locus: TAD disruption and Nrep gene misregulation as hypothetical drivers of neurodevelopmental outcomes. Sci Rep 2024; 14:5288. [PMID: 38438377 PMCID: PMC10912600 DOI: 10.1038/s41598-024-52545-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2023] [Accepted: 01/19/2024] [Indexed: 03/06/2024] Open
Abstract
Structural variations are a pervasive feature of human genomes, and there is growing recognition of their role in disease development through their impact on spatial chromatin architecture. This understanding has led us to investigate the clinical significance of CNVs in noncoding regions that influence TAD structures. In this study, we focused on the Epb41l4a locus, which contains a highly conserved TAD boundary present in both human chromosome 5 and mouse chromosome 18, and its association with neurodevelopmental phenotypes. Analysis of human data from the DECIPHER database indicates that CNVs within this locus, including both deletions and duplications, are often observed alongside neurological abnormalities, such as dyslexia and intellectual disability, although there is not enough evidence of a direct correlation or causative relationship. To investigate these possible associations, we generated mouse models with deletion and inversion mutations at this locus and carried out RNA-seq analysis to elucidate gene expression changes. We found that modifications in the Epb41l4a TAD boundary led to dysregulation of the Nrep gene, which plays a crucial role in nervous system development. These findings underscore the potential pathogenicity of these CNVs and highlight the crucial role of spatial genome architecture in gene expression regulation.
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Affiliation(s)
- Paul Salnikov
- Institute of Cytology and Genetics SB RAS, Novosibirsk, Russia
- Novosibirsk State University, Novosibirsk, Russia
| | - Alexey Korablev
- Institute of Cytology and Genetics SB RAS, Novosibirsk, Russia
| | - Irina Serova
- Institute of Cytology and Genetics SB RAS, Novosibirsk, Russia
| | - Polina Belokopytova
- Institute of Cytology and Genetics SB RAS, Novosibirsk, Russia
- Novosibirsk State University, Novosibirsk, Russia
| | - Aleksandra Yan
- Institute of Cytology and Genetics SB RAS, Novosibirsk, Russia
- Novosibirsk State University, Novosibirsk, Russia
| | - Yana Stepanchuk
- Institute of Cytology and Genetics SB RAS, Novosibirsk, Russia
- Novosibirsk State University, Novosibirsk, Russia
| | - Savelii Tikhomirov
- Institute of Cytology and Genetics SB RAS, Novosibirsk, Russia
- Novosibirsk State University, Novosibirsk, Russia
| | - Veniamin Fishman
- Institute of Cytology and Genetics SB RAS, Novosibirsk, Russia.
- Novosibirsk State University, Novosibirsk, Russia.
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Liu Y, Liu M, Zhang C, Li X, Zheng S, Wen L, Liu P, Li P, Yang Z. The silencing of NREP aggravates OA cartilage damage through the TGF-β1/Smad2/3 pathway in chondrocytes. J Orthop Translat 2024; 44:26-34. [PMID: 38179126 PMCID: PMC10765488 DOI: 10.1016/j.jot.2023.11.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/21/2023] [Revised: 11/02/2023] [Accepted: 11/06/2023] [Indexed: 01/06/2024] Open
Abstract
Background Osteoarthritis (OA) is a common chronic degenerative joint disease. Due to the limited understanding of its complex pathological mechanism, there is currently no effective treatment that can alleviate or even reverse cartilage damage associated with OA. With improvement in public databases, researchers have successfully identified the key factors involved in the occurrence and development of OA through bioinformatics analysis. The aim of this study was to screen for the differentially expressed genes (DEGs) between the normal and OA cartilage through bioinformatics, and validate the function of the TGF-β1/Smad2/3 pathway-related neuron regeneration related protein (NREP) in the articular cartilage. Methods The DEGs between the cartilage tissues of OA patients and healthy controls were screened by bioinformatics, and functionally annotated by Gene Ontology (GO) and Kyoto Encyclopedia of Genes and Genomes (KEGG) pathway analyses. The expression levels of the DEG in human and murine OA cartilage was verified by reverse transcription-quantitative PCR (RT-qPCR), Western blotting and immunohistochemistry (IHC). RT-qPCR, Western-blotting, Cell Counting Kit-8(CCK8) and EdU assays were used to evaluate the effects of knocking down NREP in normal chondrocytes, and the molecular mechanisms were investigated by RT-qPCR, Western blotting and IHC. Results In this study, we identified NREP as a DEG in OA through bioinformatics analysis, and found that NREP was downregulated in the damaged articular cartilage of OA patients and mouse model with surgically-induced OA. In addition, knockdown of NREP in normal chondrocytes reduced their proliferative capacity, which is the pathological basis of OA. At the molecular level, knock-down of NREP inactivated the TGF-β1/Smad2/3 pathway, resulting in the downregulation of the anabolic markers Col2a1 and Sox9, and an increase in the expression of the catabolic markers MMP3 and MMP13. Conclusion NREP plays a key role in the progression of OA by regulating the TGF-β1/Smad2/3 pathway in chondrocytes, and warrants further study as a potential therapeutic target.
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Affiliation(s)
- Yang Liu
- Department of Orthopedics, First Hospital of Shanxi Medical University, Taiyuan, Shanxi, 030000, PR China
- Department of Biochemistry and Molecular Biology, School of Basic Medicine, Shanxi Medical University, Taiyuan, Shanxi, 030000, PR China
- Shanxi Key Laboratory of Bone and Soft Tissue Injury Repair, Taiyuan, Shanxi, 030000, PR China
| | - Mengrou Liu
- Department of Orthopedics, First Hospital of Shanxi Medical University, Taiyuan, Shanxi, 030000, PR China
- Department of Biochemistry and Molecular Biology, School of Basic Medicine, Shanxi Medical University, Taiyuan, Shanxi, 030000, PR China
- Shanxi Key Laboratory of Bone and Soft Tissue Injury Repair, Taiyuan, Shanxi, 030000, PR China
| | - Chengming Zhang
- Shanxi Key Laboratory of Bone and Soft Tissue Injury Repair, Taiyuan, Shanxi, 030000, PR China
| | - Xiaoke Li
- Shanxi Key Laboratory of Bone and Soft Tissue Injury Repair, Taiyuan, Shanxi, 030000, PR China
| | - Siyu Zheng
- Shanxi Key Laboratory of Bone and Soft Tissue Injury Repair, Taiyuan, Shanxi, 030000, PR China
| | - Le Wen
- Shanxi Key Laboratory of Bone and Soft Tissue Injury Repair, Taiyuan, Shanxi, 030000, PR China
| | - Peidong Liu
- Department of Orthopedics, HongHui Hospital of Xi'an Jiao Tong University, Xi'an, Shannxi, 710000, PR China
| | - Pengcui Li
- Shanxi Key Laboratory of Bone and Soft Tissue Injury Repair, Taiyuan, Shanxi, 030000, PR China
| | - Ziquan Yang
- Department of Orthopedics, First Hospital of Shanxi Medical University, Taiyuan, Shanxi, 030000, PR China
- Shanxi Key Laboratory of Bone and Soft Tissue Injury Repair, Taiyuan, Shanxi, 030000, PR China
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Chen C, Tang Y, Zhu X, Yang J, Liu Z, Chen Y, Wang J, Shang R, Zheng W, Zhang X, Hu X, Tan J, Zhou J, Peng S, Lu Q, Ju Z, Luo G, He W. P311 Promotes IL-4 Receptor‒Mediated M2 Polarization of Macrophages to Enhance Angiogenesis for Efficient Skin Wound Healing. J Invest Dermatol 2023; 143:648-660.e6. [PMID: 36309321 DOI: 10.1016/j.jid.2022.09.659] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2021] [Revised: 08/15/2022] [Accepted: 09/23/2022] [Indexed: 11/05/2022]
Abstract
The transition from the proinflammatory phase to the prohealing phase in wound healing is essential for effective skin wound repair, which involves the balance of M1 and M2 polarization of wound-infiltrating macrophages. P311 plays an essential role in promoting wound closure by enhancing the biological function of epidermal stem cells, endothelial cells, and fibroblasts. Nevertheless, whether and how P311 regulates macrophage polarization remains unclear. In this study, we showed that P311 deficiency reduced the M2 polarization of macrophages, thereby attenuating the secretion of M2-like cytokines. The P311 deficiency prolonged the transition from the proinflammatory phase to the prohealing phase, accompanied by weakened angiogenesis and retarded granulation tissue formation, both of which coordinately hinder the healing of skin wounds. Mechanistically, P311 deficiency downregulated the expression of IL-4 receptor on macrophages, followed by less activation of the IL-4 receptor‒signal transducer and activator of transcription 6 signaling pathway, resulting in impaired M2 macrophage polarization. We further revealed that the mTOR signaling pathway was associated with the regulation of P311 on the expression of IL-4 receptor in macrophages. Thus, our study has highlighted the pivotal role of P311 in promoting the M2 polarization of macrophages for effective skin wound healing.
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Affiliation(s)
- Cheng Chen
- State Key Laboratory of Trauma, Burn and Combined Injury, Institute of Burn Research, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing, China; Chongqing Key Laboratory for Disease Proteomics, Chongqing, China
| | - Yuanyang Tang
- State Key Laboratory of Trauma, Burn and Combined Injury, Institute of Burn Research, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing, China; Academy of Biological Engineering, Chongqing University, Chongqing, China
| | - Xudong Zhu
- Key Laboratory of Aging and Cancer Biology of Zhejiang Province, School of Basic Medicine, Hangzhou Normal University, Hangzhou, China
| | - Jiacai Yang
- State Key Laboratory of Trauma, Burn and Combined Injury, Institute of Burn Research, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing, China; Chongqing Key Laboratory for Disease Proteomics, Chongqing, China
| | - Zhihui Liu
- State Key Laboratory of Trauma, Burn and Combined Injury, Institute of Burn Research, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing, China; Chongqing Key Laboratory for Disease Proteomics, Chongqing, China
| | - Yunxia Chen
- State Key Laboratory of Trauma, Burn and Combined Injury, Institute of Burn Research, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing, China; Chongqing Key Laboratory for Disease Proteomics, Chongqing, China
| | - Jue Wang
- State Key Laboratory of Trauma, Burn and Combined Injury, Institute of Burn Research, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing, China; Chongqing Key Laboratory for Disease Proteomics, Chongqing, China
| | - Ruoyu Shang
- State Key Laboratory of Trauma, Burn and Combined Injury, Institute of Burn Research, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing, China; Chongqing Key Laboratory for Disease Proteomics, Chongqing, China
| | - Wenxia Zheng
- Department of Technical Support, Chengdu Zhijing Technologies, Chengdu, China
| | - Xiaorong Zhang
- State Key Laboratory of Trauma, Burn and Combined Injury, Institute of Burn Research, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing, China; Chongqing Key Laboratory for Disease Proteomics, Chongqing, China
| | - Xiaohong Hu
- State Key Laboratory of Trauma, Burn and Combined Injury, Institute of Burn Research, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing, China; Chongqing Key Laboratory for Disease Proteomics, Chongqing, China
| | - Jianglin Tan
- State Key Laboratory of Trauma, Burn and Combined Injury, Institute of Burn Research, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing, China; Chongqing Key Laboratory for Disease Proteomics, Chongqing, China
| | - Junyi Zhou
- State Key Laboratory of Trauma, Burn and Combined Injury, Institute of Burn Research, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing, China; Chongqing Key Laboratory for Disease Proteomics, Chongqing, China
| | - Shiya Peng
- State Key Laboratory of Trauma, Burn and Combined Injury, Institute of Burn Research, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing, China; Department of Dermatology, Xinqiao Hospital, Army Military Medical University, Chongqing, China
| | - Qudong Lu
- State Key Laboratory of Trauma, Burn and Combined Injury, Institute of Burn Research, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing, China; Department of Urology, Second Affiliated Hospital, Army Medical University, Chongqing, China
| | - Zhenyu Ju
- Key Laboratory of Regenerative Medicine of Ministry of Education, Guangzhou Regenerative Medicine and Health Guangdong Laboratory, Institute of Aging and Regenerative Medicine, Jinan University, Guangzhou, China
| | - Gaoxing Luo
- State Key Laboratory of Trauma, Burn and Combined Injury, Institute of Burn Research, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing, China; Chongqing Key Laboratory for Disease Proteomics, Chongqing, China
| | - Weifeng He
- State Key Laboratory of Trauma, Burn and Combined Injury, Institute of Burn Research, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing, China; Chongqing Key Laboratory for Disease Proteomics, Chongqing, China.
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5
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Jiang J, Wang J, Li C, Mo L, Huang D. P311 knockdown alleviates hyperoxia-induced injury by inactivating the Smad3 signaling pathway in type II alveolar epithelial cells. Mol Cell Biochem 2023; 478:277-284. [PMID: 35779227 DOI: 10.1007/s11010-022-04500-6] [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: 11/18/2021] [Accepted: 06/06/2022] [Indexed: 02/02/2023]
Abstract
P311 is associated with alveolar formation and development. However, the role and possible mechanism of P311 in hyperoxia-induced injury in type II alveolar epithelial cells (AEC II) need to be elucidated. In our study, rat AEC II (RLE-6TN) were exposure to normoxia (21% O2 and 5% CO2) or hyperoxia (95% O2 and 5% CO2) for 24 h, followed by determination of P311 expression. After knockdown of P311 and hyperoxic treatment, cell viability, cell cycle progression, apoptosis and the Smad3 signaling pathway were examined. Rat AEC II were pretreated with SIS3 HCl for 4 h and then subjected to P311 overexpression plasmid transfection and hyperoxic exposure. Then, cell viability, apoptosis and the Smad3 signaling pathway were determined. The results showed that hyperoxic exposure significantly elevated P311 levels in rat AEC II. P311 knockdown increased cell viability, accelerated cell cycle progression and inhibited apoptosis, as well as suppression of the Smad3 signaling pathway in hyperoxia-exposed AEC II. Additionally, we found that P311 overexpression enhanced the effects of hyperoxia. Interestingly, SIS3 HCl incubation blocked the effects of P311 overexpression on rat AEC II function under hyperoxic condition, as evidenced by an increase in cell viability, and suppressions of apoptosis and the Smad3 signaling pathway. These results indicate that P311 knockdown may ameliorate hyperoxia-induced injury by inhibiting the Smad3 signaling pathway in rat AEC II. P311 may be a novel target for the treatment of hyperoxia-induced lung injury and even bronchopulmonary dysplasia (BPD).
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Affiliation(s)
- Jun Jiang
- Department of Pediatric Intensive Care Unit, Guizhou Provincial People's Hospital, 83 Zhongshan East Road, Guiyang, 550002, Guizhou, China
| | - Juan Wang
- Department of Pediatrics, Affiliated Hospital of Hebei University, Handan, China
| | - Cen Li
- Department of Pediatric Intensive Care Unit, Guizhou Provincial People's Hospital, 83 Zhongshan East Road, Guiyang, 550002, Guizhou, China
| | - Lianqin Mo
- Department of Pediatric Intensive Care Unit, Guizhou Provincial People's Hospital, 83 Zhongshan East Road, Guiyang, 550002, Guizhou, China
| | - Dong Huang
- Department of Pediatric Intensive Care Unit, Guizhou Provincial People's Hospital, 83 Zhongshan East Road, Guiyang, 550002, Guizhou, China.
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6
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Wang J, Shang R, Yang J, Liu Z, Chen Y, Chen C, Zheng W, Tang Y, Zhang X, Hu X, Huang Y, Shen HM, Luo G, He W. P311 promotes type II transforming growth factor-β receptor mediated fibroblast activation and granulation tissue formation in wound healing. BURNS & TRAUMA 2022; 10:tkac027. [PMID: 37469904 PMCID: PMC9562783 DOI: 10.1093/burnst/tkac027] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/07/2022] [Revised: 02/07/2022] [Indexed: 07/21/2023]
Abstract
Background P311, a highly conserved 8 kDa intracellular protein, has recently been reported to play an important role in aggravating hypertrophic scaring by promoting the differentiation and secretion of fibroblasts. Nevertheless, how P311 regulates the differentiation and function of fibroblasts to affect granulation tissue formation remains unclear. In this work, we studied the underlying mechanisms via which P311 affects fibroblasts and promotes acute skin wound repair. Methods To explore the role of P311, both in vitro and in vivo wound-healing models were used. Full-thickness skin excisional wounds were made in wild-type and P311-/- C57 adult mice. Wound healing rate, re-epithelialization, granulation tissue formation and collagen deposition were measured at days 3, 6 and 9 after skin injury. The biological phenotypes of fibroblasts, the expression of target proteins and relevant signaling pathways were examined both in vitro and in vivo. Results P311 could promote the proliferation and differentiation of fibroblasts, enhance the ability of myofibroblasts to secrete extracellular matrix and promote cell contraction, and then facilitate the formation of granulation tissue and eventually accelerate skin wound closure. Importantly, we discovered that P311 acts via up-regulating the expression of type II transforming growth factor-β receptor (TGF-βRII) in fibroblasts and promoting the activation of the TGF-βRII-Smad signaling pathway. Mechanistically, the mammalian target of rapamycin signaling pathway is closely implicated in the regulation of the TGF-βRII-Smad pathway in fibroblasts mediated by P311. Conclusions P311 plays a critical role in activation of the TGF-βRII-Smad pathway to promote fibroblast proliferation and differentiation as well as granulation tissue formation in the process of skin wound repair.
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Affiliation(s)
| | | | - Jiacai Yang
- State Key Laboratory of Trauma, Burn and Combined Injury, Institute of Burn
Research, Southwest Hospital, Third Military Medical University (Army Medical
University), Chongqing 400038, China
- Chongqing Key Laboratory for Disease Proteomics,
Chongqing 400038, China
| | - Zhihui Liu
- State Key Laboratory of Trauma, Burn and Combined Injury, Institute of Burn
Research, Southwest Hospital, Third Military Medical University (Army Medical
University), Chongqing 400038, China
- Chongqing Key Laboratory for Disease Proteomics,
Chongqing 400038, China
| | - Yunxia Chen
- State Key Laboratory of Trauma, Burn and Combined Injury, Institute of Burn
Research, Southwest Hospital, Third Military Medical University (Army Medical
University), Chongqing 400038, China
- Chongqing Key Laboratory for Disease Proteomics,
Chongqing 400038, China
| | - Cheng Chen
- State Key Laboratory of Trauma, Burn and Combined Injury, Institute of Burn
Research, Southwest Hospital, Third Military Medical University (Army Medical
University), Chongqing 400038, China
- Chongqing Key Laboratory for Disease Proteomics,
Chongqing 400038, China
| | - Wenxia Zheng
- Department of Technical Support, Chengdu Zhijing Technology Co.,
Ltd, Chengdu 610041, China
| | - Yuanyang Tang
- State Key Laboratory of Trauma, Burn and Combined Injury, Institute of Burn
Research, Southwest Hospital, Third Military Medical University (Army Medical
University), Chongqing 400038, China
- Academy of Biological Engineering, Chongqing University,
Chongqing 400038, China
| | - Xiaorong Zhang
- State Key Laboratory of Trauma, Burn and Combined Injury, Institute of Burn
Research, Southwest Hospital, Third Military Medical University (Army Medical
University), Chongqing 400038, China
- Chongqing Key Laboratory for Disease Proteomics,
Chongqing 400038, China
| | - Xiaohong Hu
- State Key Laboratory of Trauma, Burn and Combined Injury, Institute of Burn
Research, Southwest Hospital, Third Military Medical University (Army Medical
University), Chongqing 400038, China
- Chongqing Key Laboratory for Disease Proteomics,
Chongqing 400038, China
| | - Yong Huang
- State Key Laboratory of Trauma, Burn and Combined Injury, Institute of Burn
Research, Southwest Hospital, Third Military Medical University (Army Medical
University), Chongqing 400038, China
- Chongqing Key Laboratory for Disease Proteomics,
Chongqing 400038, China
| | - Han-Ming Shen
- Correspondence. Weifeng He, ;
Gaoxing Luo, ; Han-ming Shen,
| | - Gaoxing Luo
- Correspondence. Weifeng He, ;
Gaoxing Luo, ; Han-ming Shen,
| | - Weifeng He
- Correspondence. Weifeng He, ;
Gaoxing Luo, ; Han-ming Shen,
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Shi R, Li H, Jin X, Huang X, Ou Z, Zhang X, Luo G, Deng J. Promoting Re-epithelialization in an oxidative diabetic wound microenvironment using self-assembly of a ROS-responsive polymer and P311 peptide micelles. Acta Biomater 2022; 152:425-439. [PMID: 36113723 DOI: 10.1016/j.actbio.2022.09.017] [Citation(s) in RCA: 23] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2022] [Revised: 08/30/2022] [Accepted: 09/08/2022] [Indexed: 11/29/2022]
Abstract
Engineering smart nano-therapeutics for re-epithelialisation of chronic wounds facilitates the wound healing process. However, due to excessive oxidative stress damage and persistent inflammation in diabetic wound microenvironment, the migration of stimulating epidermal cells in diabetic wounds represents a significant challenge. Here we synthesised P311-loaded micelles by self-assembly of P311 peptides and diblock copolymer poly (ethylene glycol)-block-poly (propylene sulfide) (PEG-b-PPS, denoted as PEPS) that have unique ability to transform an oxidative wound microenvironment into a proregenerative one while also providing cues for epidermal cell migration. The P311@PEPS showed an accelerated migration of epidermal cells via activation of the Akt signalling pathway, simultaneously suppressing the unfavourable oxidative wound microenvironment by scavenging reactive oxygen species (ROS), ultimately leading to the induction of an environment conducive to cell migration. Furthermore, the micelles were able to bypass the inhibitory effect of ROS on the Akt signalling pathway, thereby promoting epidermal cell migration. Additionally, we observed that diabetic wounds treated with P311@PEPS showed accelerated chronic wound healing, granulation tissue formation, collagen deposition and re-epithelialisation, thereby suggesting the efficacy of P311@PEPS as a promising nanoplatform for the treatment of chronic wounds. STATEMENT OF SIGNIFICANCE: Based on the unique conditions of the diabetic wound microenvironment, a smart drug delivery system with ROS-responsive nanomaterials has been widely investigated to enhance diabetic wound healing. In our previous studies, we observed that P311 promotes epidermal cell migration to induce wound re-epithelialisation. However, the application of P311 suffers from its instability. Herein, we developed a therapeutic platform with P311-loaded micelles (P311@PEPS), which were synthesized by the self-assembly of P311 peptides and diblock copolymer poly (ethylene glycol)-block-poly (propylene sulfide) (PEG-b-PPS, denoted as PEPS). These micelles provide continuous migration signals for epidermal cells by ROS-trigged P311 release. Additionally, P311@PEPS scavenges excess ROS and provides a microenvironment that reduces inflammation, which could protect P311 from enzymatic degradation and improve the bioavailability of P311.
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Affiliation(s)
- Rong Shi
- Institute of Burn Research, State Key Lab of Trauma, Burn, and Combined Injury, Chongqing Key Laboratory for Disease Proteomics, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing 400038, China; Department of Plastic Surgery, Lanzhou University Second Hospital. Lanzhou, Gansu 730000, China; Department of Breast Surgery, Gansu Provincial Hospital, Lanzhou, Gansu 730030, China
| | - Haisheng Li
- Institute of Burn Research, State Key Lab of Trauma, Burn, and Combined Injury, Chongqing Key Laboratory for Disease Proteomics, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing 400038, China
| | - Xin Jin
- Institute of Burn Research, State Key Lab of Trauma, Burn, and Combined Injury, Chongqing Key Laboratory for Disease Proteomics, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing 400038, China
| | - Xue Huang
- Institute of Burn Research, State Key Lab of Trauma, Burn, and Combined Injury, Chongqing Key Laboratory for Disease Proteomics, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing 400038, China
| | - Zelin Ou
- Institute of Burn Research, State Key Lab of Trauma, Burn, and Combined Injury, Chongqing Key Laboratory for Disease Proteomics, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing 400038, China
| | - Xuanfen Zhang
- Department of Plastic Surgery, Lanzhou University Second Hospital. Lanzhou, Gansu 730000, China.
| | - Gaoxing Luo
- Institute of Burn Research, State Key Lab of Trauma, Burn, and Combined Injury, Chongqing Key Laboratory for Disease Proteomics, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing 400038, China.
| | - Jun Deng
- Institute of Burn Research, State Key Lab of Trauma, Burn, and Combined Injury, Chongqing Key Laboratory for Disease Proteomics, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing 400038, China.
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8
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NREP is a Diagnostic and Prognostic Biomarker, and Promotes Gastric Cancer Cell Proliferation and Angiogenesis. Biochem Genet 2022; 61:669-686. [PMID: 36094607 DOI: 10.1007/s10528-022-10276-7] [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: 11/03/2021] [Accepted: 08/17/2022] [Indexed: 11/02/2022]
Abstract
Neuronal regeneration related protein (NREP), also known as P311, has been reported to participate in multiple biological processes. The detection of tumor biomarker favored a non-invasive early entry for cancer diagnosis and disease monitoring to prevent its worsening symptoms. This study is intended to investigate the clinical roles of NREP in gastric cancer (GC) and its effect on gastric cancer cell proliferation and angiogenesis. Our results demonstrated that NREP was typically upregulated in GC tissues compared with normal control. The Kaplan-Meier analysis showed correlations between increased NREP level and poor survival, indicating the prognostic value of NREP in GC patients. The expression levels of NREP varied by races, clinical T stages, and histologic grades. NREP expression was associated with tumor-associated immune infiltration. The NREP expression was powerfully associated with clinical characteristics of GC patients, in particular, with T stage and histologic grade. Gene ontology and KEGG signaling analysis indicated that NREP-related genes were predominantly enriched in various pathways. Additionally, knockdown of NREP inhibited human gastric adenocarcinoma cell proliferation and angiogenesis. Collectively, our results suggested that NREP may be an excellent biomarker for the clinical diagnosis, prognosis, and therapy of GC.
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9
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Amjadian S, Moradi S, Mohammadi P. The emerging therapeutic targets for scar management: genetic and epigenetic landscapes. Skin Pharmacol Physiol 2022; 35:247-265. [PMID: 35696989 PMCID: PMC9533440 DOI: 10.1159/000524990] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2021] [Accepted: 04/22/2022] [Indexed: 11/28/2022]
Abstract
Background Wound healing is a complex process including hemostasis, inflammation, proliferation, and remodeling during which an orchestrated array of biological and molecular events occurs to promote skin regeneration. Abnormalities in each step of the wound healing process lead to reparative rather than regenerative responses, thereby driving the formation of cutaneous scar. Patients suffering from scars represent serious health problems such as contractures, functional and esthetic concerns as well as painful, thick, and itchy complications, which generally decrease the quality of life and impose high medical costs. Therefore, therapies reducing cutaneous scarring are necessary to improve patients' rehabilitation. Summary Current approaches to remove scars, including surgical and nonsurgical methods, are not efficient enough, which is in principle due to our limited knowledge about underlying mechanisms of pathological as well as the physiological wound healing process. Thus, therapeutic interventions focused on basic science including genetic and epigenetic knowledge are recently taken into consideration as promising approaches for scar management since they have the potential to provide targeted therapies and improve the conventional treatments as well as present opportunities for combination therapy. In this review, we highlight the recent advances in skin regenerative medicine through genetic and epigenetic approaches to achieve novel insights for the development of safe, efficient, and reproducible therapies and discuss promising approaches for scar management. Key Message Genetic and epigenetic regulatory switches are promising targets for scar management, provided the associated challenges are to be addressed.
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Affiliation(s)
- Sara Amjadian
- Department of Stem Cells and Developmental Biology, Cell Science Research Center, Royan Institute for Stem Cell Biology and Technology, ACECR, Tehran, Iran
- Department of Developmental Biology, University of Science and Culture, Tehran, Iran
| | - Sharif Moradi
- Department of Stem Cells and Developmental Biology, Cell Science Research Center, Royan Institute for Stem Cell Biology and Technology, ACECR, Tehran, Iran
| | - Parvaneh Mohammadi
- Experimental Medicine and Therapy Research, University of Regensburg, Regensburg, Germany
- Department of Stem Cells and Developmental Biology, Cell Science Research Center, Royan Institute for Stem Cell Biology and Technology, ACECR, Tehran, Iran
- *Parvaneh Mohammadi,
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10
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Thankam FG, Agrawal DK. Single Cell Genomics Identifies Unique Cardioprotective Phenotype of Stem Cells derived from Epicardial Adipose Tissue under Ischemia. Stem Cell Rev Rep 2021; 18:294-335. [PMID: 34661829 DOI: 10.1007/s12015-021-10273-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/28/2021] [Indexed: 12/21/2022]
Abstract
The conventional management strategies of myocardial infarction (MI) are effective to sustain life; however, myocardial regeneration has not been achieved owing to the inherently poor regenerative capacity of the native myocardium. Stem cell-based therapies are promising; however, lineage specificity and undesired differentiation profile are challenging. Herein, we focused on the epicardial fat (EF) as an ideal source for mesenchymal stem cells (MSCs) owing to the proximity and same microvasculature with cardiac muscle. Unfortunately, the epicardial adipose tissue derived stem cells (EATDS) remain understudied regarding their phenotype heterogeneity and cardiac regeneration potential. As EF closely reflects the cardiac pathology during ischemia, the present study aims to determine the EATDS subpopulations under simulated ischemic and reperfused conditions employing single cell RNA sequencing (scRNAseq). EATDS were isolated from three hyperlipidemic Yucatan microswine and were divided into Control, Ischemia (ISC), and Ischemia/reperfusion (ISC/R). The scRNAseq analysis was performed using 10 genomics platform which revealed 18 unique cell clusters suggesting the existence of heterogeneous phenotypes. The upregulated genes were taken into consideration and subsequent functional assessment revealed the cardioprotective phenotypes with diverse mechanisms including epigenetic regulation (Cluster 1), myocardial homeostasis (Cluster 1), cell integrity and cell cycle (Clusters 2 and 3), prevention of fibroblast differentiation (Cluster 4), differentiation to myocardial lineage (Cluster 6), anti-inflammatory responses (Clusters 5, 8, and 11), prevention of ER-stress (Cluster 9), and increasing the energy metabolism (Cluster 10). These unique phenotypes of heterogeneous EATDS population open significant translational opportunities for myocardial regeneration and cardiac management.
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Affiliation(s)
- Finosh G Thankam
- Department of Translational Research, Western University of Health Sciences, 309 E. Second Street, Pomona, CA, 91766-1854, USA.
| | - Devendra K Agrawal
- Department of Translational Research, Western University of Health Sciences, 309 E. Second Street, Pomona, CA, 91766-1854, USA
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11
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Ponedal A, Zhu S, Sprangers AJ, Wang XQ, Yeo DC, Lio DCS, Zheng M, Capek M, Narayan SP, Meckes B, Paller AS, Xu C, Mirkin CA. Attenuation of Abnormal Scarring Using Spherical Nucleic Acids Targeting Transforming Growth Factor Beta 1. ACS APPLIED BIO MATERIALS 2020; 3:8603-8610. [PMID: 33709070 DOI: 10.1021/acsabm.0c00990] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Abnormal scarring is a consequence of dysregulation in the wound healing process, with limited options for effective and noninvasive therapies. Given the ability of spherical nucleic acids (SNAs) to penetrate skin and regulate gene expression within, we investigated whether gold-core SNAs (AuSNAs) and liposome-core SNAs (LSNAs) bearing antisense oligonucleotides targeting transforming growth factor beta 1 (TGF-β1) can function as a topical therapy for scarring. Importantly, both SNA constructs appreciably downregulated TGF-β1 protein expression in primary hypertrophic and keloid scar fibroblasts in vitro. In vivo, topically applied AuSNAs and LSNAs downregulated TGF-β1 protein expression levels and improved scar histology as determined by the scar elevation index. These data underscore the potential of SNAs as a localized, self-manageable treatment for skin-related diseases and disorders that are driven by increased gene expression.
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Affiliation(s)
- Adam Ponedal
- Department of Chemical and Biological Engineering and International Institute for Nanotechnology, Northwestern University, Evanston, Illinois 60208, United States
| | - Shengshuang Zhu
- International Institute for Nanotechnology and Department of Materials Science and Engineering, Northwestern University, Evanston, Illinois 60208, United States
| | - Anthony J Sprangers
- International Institute for Nanotechnology and Department of Biomedical Engineering, Northwestern University, Evanston, Illinois 60208, United States
| | - Xiao-Qi Wang
- Department of Dermatology, Northwestern University, Chicago, Illinois 60611, United States
| | - David C Yeo
- School of Chemical and Biomedical Engineering, Nanyang Technological University, Singapore 639798
| | - Daniel C S Lio
- School of Chemical and Biomedical Engineering, Nanyang Technological University, Singapore 639798
| | - Mengjia Zheng
- School of Chemical and Biomedical Engineering, Nanyang Technological University, Singapore 639798
| | - Matthew Capek
- International Institute for Nanotechnology, Northwestern University, Evanston, Illinois 60208, United States
| | - Suguna P Narayan
- International Institute for Nanotechnology, Northwestern University, Evanston, Illinois 60208, United States
| | - Brian Meckes
- International Institute for Nanotechnology, Northwestern University, Evanston, Illinois 60208, United States; Department of Biomedical Engineering, University of North Texas, Denton, Texas 76203, United States
| | - Amy S Paller
- Department of Dermatology, Northwestern University, Chicago, Illinois 60611, United States
| | - Chenjie Xu
- Department of Biomedical Engineering, City University of Hong Kong, Kowloon, Hong Kong SAR, China
| | - Chad A Mirkin
- Department of Chemical and Biological Engineering, International Institute for Nanotechnology, Department of Materials Science and Engineering, and Department of Biomedical Engineering, Northwestern University, Evanston, Illinois 60208, United States
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12
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Wei Z, Han C, Li H, He W, Zhou J, Dong H, Wu Y, Tian Y, Luo G. Molecular Mechanism of Mesenchyme Homeobox 1 in Transforming Growth Factor β1-Induced P311 Gene Transcription in Fibrosis. Front Mol Biosci 2020; 7:59. [PMID: 32411720 PMCID: PMC7199492 DOI: 10.3389/fmolb.2020.00059] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2020] [Accepted: 03/23/2020] [Indexed: 12/18/2022] Open
Abstract
Organ fibrosis is characterized by excessive fibroblast, and extracellular matrix and the molecular basis are not fully elucidated. Recent studies have proven that P311, an 8-kDa conserved protein, could promote various organ fibrosis, such as skin, kidney, liver, and lung, partially through upregulating transforming growth factor β1 (TGF-β1) translation. However, the upstream regulators and mechanism of P311 gene regulation remain unclear, although we previously found that cytokines, hypoxia, and TGF-β1 could upregulate P311 transcription. Here, we aimed to elucidate the molecular mechanism of TGF-β1–induced P311 transcriptional regulation, focusing on mesenchyme homeobox 1 (Meox1). In this article, we identified the core promoter of P311 through bioinformatics analysis and luciferase reporter assays. Moreover, we demonstrated that Meox1, induced by TGF-β1, could bind to the promoter of P311 and promote its transcriptional activity. Furthermore, the effect of Meox1 on P311 transcriptional expression contributed to altered migration and proliferation in human dermal fibroblast cells. In conclusion, we identified Meox1 as a novel transcription factor of P311 gene, providing a new clue of the pathogenesis in fibrosis.
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Affiliation(s)
- Zhiyuan Wei
- Institute of Burn Research, PLA, State Key Laboratory of Trauma, Burn and Combined Injury, The First Affiliated Hospital of Third Military Medical University (Army Medical University), Chongqing, China
| | - Chao Han
- Institute of Immunology, PLA, Third Military Medical University (Army Medical University), Chongqing, China
| | - Haisheng Li
- Institute of Burn Research, PLA, State Key Laboratory of Trauma, Burn and Combined Injury, The First Affiliated Hospital of Third Military Medical University (Army Medical University), Chongqing, China
| | - Weifeng He
- Institute of Burn Research, PLA, State Key Laboratory of Trauma, Burn and Combined Injury, The First Affiliated Hospital of Third Military Medical University (Army Medical University), Chongqing, China
| | - Junyi Zhou
- Institute of Burn Research, PLA, State Key Laboratory of Trauma, Burn and Combined Injury, The First Affiliated Hospital of Third Military Medical University (Army Medical University), Chongqing, China
| | - Hui Dong
- Institute of Immunology, PLA, Third Military Medical University (Army Medical University), Chongqing, China
| | - Yuzhang Wu
- Institute of Immunology, PLA, Third Military Medical University (Army Medical University), Chongqing, China
| | - Yi Tian
- Institute of Immunology, PLA, Third Military Medical University (Army Medical University), Chongqing, China
| | - Gaoxing Luo
- Institute of Burn Research, PLA, State Key Laboratory of Trauma, Burn and Combined Injury, The First Affiliated Hospital of Third Military Medical University (Army Medical University), Chongqing, China
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13
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Duan FF, Barron G, Meliton A, Mutlu GM, Dulin NO, Schuger L. P311 Promotes Lung Fibrosis via Stimulation of Transforming Growth Factor-β1, -β2, and -β3 Translation. Am J Respir Cell Mol Biol 2019; 60:221-231. [PMID: 30230348 DOI: 10.1165/rcmb.2018-0028oc] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
Interstitial lung fibrosis, a frequently idiopathic and fatal disease, has been linked to the increased expression of profibrotic transforming growth factor (TGF)-βs. P311 is an RNA-binding protein that stimulates TGF-β1, -β2, and -β3 translation in several cell types through its interaction with the eukaryotic translation initiation factor 3b. We report that P311 is switched on in the lungs of patients with idiopathic pulmonary fibrosis (IPF) and in the mouse model of bleomycin (BLM)-induced pulmonary fibrosis. To assess the in vivo role of P311 in lung fibrosis, BLM was instilled into the lungs of P311-knockout mice, in which fibrotic changes were significantly decreased in tandem with a reduction in TGF-β1, -β2, and -β3 concentration/activity compared with BLM-treated wild-type mice. Complementing these findings, forced P311 expression increased TGF-β concentration/activity in mouse and human lung fibroblasts, thereby leading to an activated phenotype with increased collagen production, as seen in IPF. Consistent with a specific effect of P311 on TGF-β translation, TGF-β1-, -β2-, and -β3-neutralizing antibodies downregulated P311-induced collagen production by lung fibroblasts. Furthermore, treatment of BLM-exposed P311 knockouts with recombinant TGF-β1, -β2, and -β3 induced pulmonary fibrosis to a degree similar to that found in BLM-treated wild-type mice. These studies demonstrate the essential function of P311 in TGF-β-mediated lung fibrosis. Targeting P311 could prove efficacious in ameliorating the severity of IPF while circumventing the development of autoimmune complications and toxicities associated with the use of global TGF-β inhibitors.
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Affiliation(s)
| | | | - Angelo Meliton
- 2 Section of Pulmonary and Critical Care Medicine, Department of Medicine, The University of Chicago Medical School, Chicago, Illinois
| | - Gokhan M Mutlu
- 2 Section of Pulmonary and Critical Care Medicine, Department of Medicine, The University of Chicago Medical School, Chicago, Illinois
| | - Nickolai O Dulin
- 2 Section of Pulmonary and Critical Care Medicine, Department of Medicine, The University of Chicago Medical School, Chicago, Illinois
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14
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Wang S, Zhang X, Hao F, Li Y, Sun C, Zhan R, Wang Y, He W, Li H, Luo G. Reconstruction and Functional Annotation of P311 Protein-Protein Interaction Network Reveals Its New Functions. Front Genet 2019; 10:109. [PMID: 30838032 PMCID: PMC6390203 DOI: 10.3389/fgene.2019.00109] [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: 09/19/2017] [Accepted: 01/30/2019] [Indexed: 12/24/2022] Open
Abstract
P311 is a highly conserved multifunctional protein. However, it does not belong to any established family of proteins, and its biological function has not been entirely determined. This study aims to reveal the unknown molecular and cellular function of P311. OCG (Overlapping Cluster Generator) is a clustering method used to partition a protein-protein network into overlapping clusters. Multifunctional proteins are at the intersection of relevant clusters. DAVID is an analytic tool used to extract biological meaning from a large protein list. Here we presented OD2 (OCG + DAVID + 2 human PPI datasets), a novel strategy to increase the likelihood to identify biological functions most pertinent to the multifunctional proteins. The principle of OD2 is that OCG prepares the protein lists from multifunctional protein relevant overlapping clusters, for a functional enrichment analysis by DAVID, and the similar functional enrichments, which occurs simultaneously when analyzing two human PPI datasets, are supposed to be the predicted functions. By applying OD2 to two reconstructed human PPI datasets, we supposed the function of the P311 in inflammatory responses, cell proliferation and coagulation, which were confirmed by the following biological experiments. Collectively, our study preliminarily found that P311 could play a role in inflammatory responses, cell proliferation and coagulation. Further studies are required to validate and elucidate the underlying mechanism.
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Affiliation(s)
- Song Wang
- Institute of Burn Research, State Key Laboratory of Trauma, Burn and Combined Injury, Southwest Hospital, Third Military Medical University, Chongqing, China
| | - Xiaorong Zhang
- Institute of Burn Research, State Key Laboratory of Trauma, Burn and Combined Injury, Southwest Hospital, Third Military Medical University, Chongqing, China
| | - Fen Hao
- Institute of Burn Research, State Key Laboratory of Trauma, Burn and Combined Injury, Southwest Hospital, Third Military Medical University, Chongqing, China
| | - Yan Li
- Laboratory Center of Southwest Hospital, Third Military Medical University, Chongqing, China
| | - Chao Sun
- The Sixth Resignation Cadre Sanatorium of Shandong Province Military Region, Qingdao, China
| | - Rixing Zhan
- Institute of Burn Research, State Key Laboratory of Trauma, Burn and Combined Injury, Southwest Hospital, Third Military Medical University, Chongqing, China
| | - Ying Wang
- Institute of Burn Research, State Key Laboratory of Trauma, Burn and Combined Injury, Southwest Hospital, Third Military Medical University, Chongqing, China
| | - Weifeng He
- Institute of Burn Research, State Key Laboratory of Trauma, Burn and Combined Injury, Southwest Hospital, Third Military Medical University, Chongqing, China
| | - Haisheng Li
- Institute of Burn Research, State Key Laboratory of Trauma, Burn and Combined Injury, Southwest Hospital, Third Military Medical University, Chongqing, China.,The 324th Hospital of Chinese People's Liberation Army, Chongqing, China
| | - Gaoxing Luo
- Institute of Burn Research, State Key Laboratory of Trauma, Burn and Combined Injury, Southwest Hospital, Third Military Medical University, Chongqing, China
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15
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Stradiot L, Mannaerts I, van Grunsven LA. P311, Friend, or Foe of Tissue Fibrosis? Front Pharmacol 2018; 9:1151. [PMID: 30369881 PMCID: PMC6194156 DOI: 10.3389/fphar.2018.01151] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2018] [Accepted: 09/24/2018] [Indexed: 01/26/2023] Open
Abstract
P311 was first identified by the group of Studler et al. (1993) in the developing brain. In healthy, but mainly in pathological tissues, P311 is implicated in cell migration and proliferation. Furthermore, evidence in models of tissue fibrosis points to the colocalization with and the stimulation of transforming growth factor β1 by P311. This review provides a comprehensive overview on P311 and discusses its potential as an anti-fibrotic target.
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Affiliation(s)
- Leslie Stradiot
- Liver Cell Biology Lab, Vrije Universiteit Brussel, Brussels, Belgium
| | - Inge Mannaerts
- Liver Cell Biology Lab, Vrije Universiteit Brussel, Brussels, Belgium
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16
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Qi FH, Cai PP, Liu X, Si GM. Adenovirus-mediated P311 ameliorates renal fibrosis through inhibition of epithelial-mesenchymal transition via TGF-β1-Smad-ILK pathway in unilateral ureteral obstruction rats. Int J Mol Med 2018; 41:3015-3023. [PMID: 29436600 DOI: 10.3892/ijmm.2018.3485] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2016] [Accepted: 02/06/2018] [Indexed: 11/05/2022] Open
Abstract
Epithelial-mesenchymal transition (EMT) is a critical step and key factor during renal fibrosis. Preventing renal tubular EMT is important for delaying the progression of chronic kidney disease (CKD). P311, a highly conserved 8-kDa intracellular protein, has been indicated as an important factor in myofibroblast transformation and in the progression of fibrosis. However, the related studies on P311 on renal fibrosis are limited and the mechanisms of P311 in the progression of renal tubulointerstitial fibrosis remain largely unknown. In the present study, we examined the effect of P311 on transforming growth factor-β1 (TGF-β1)-mediated EMT in a rat model of unilateral ureteral occlusion (UUO) renal fibrosis. The recombinant adenovirus p311 (also called Ad-P311) was constructed and transferred it into UUO rats, the preventive effect and possible mechanism of P311 on TGF-β1-mediated EMT were explored. The UUO model was established successfully and Ad-P311 was administered into UUO rats each week for 4 weeks, then the serum levels of Cr, blood urea nitrogen (BUN) and albumin (ALB) were evaluated. H&E staining and Masson staining were performed to observe the pathological changes of kidneys. Immunohistochemical staining and western blot analysis were used to examine the EMT markers [E-cadherin and α-smooth muscle actin (α-SMA)], and signal transducers (p-Smad2/3 and Smad7). Integrin linked kinase (ILK) as a keyintracellular mediator that controls TGF-β1-mediated-EMT was also assayed by western blot analysis. The results showed that P311 could alleviate renal tubular damage and interstitial fibrosis improving Cr, BUN and ALB serum levels in UUO kidneys. Furthermore, P311 attenuated TGF-β1-mediated EMT through Smad-ILK signaling pathway with an increase in α-SMA, pSmad2/3 and ILK expression, and a decrease in E-cadherin and Smad7 expression in UUO kidneys. In conclusion, P311 may be involved in the pathogenesis of renal fibrosis by blocking TGF-β1-mediated EMT via TGF-β1-Smad-ILK pathway in UUO kidneys. P311 may be a novel target for the control of renal fibrosis and the progression of CKD.
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Affiliation(s)
- Fang-Hua Qi
- Department of Traditional Chinese Medicine, Shandong Provincial Hospital Affiliated to Shandong University, Jinan, Shandong 250021, P.R. China
| | - Ping-Ping Cai
- Department of Traditional Chinese Medicine, Shandong Provincial Hospital Affiliated to Shandong University, Jinan, Shandong 250021, P.R. China
| | - Xiang Liu
- Department of Nephrology, Shandong Provincial Hospital Affiliated to Shandong University, Jinan, Shandong 250021, P.R. China
| | - Guo-Min Si
- Department of Traditional Chinese Medicine, Shandong Provincial Hospital Affiliated to Shandong University, Jinan, Shandong 250021, P.R. China
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17
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Cai P, Liu X, Xu Y, Qi F, Si G. Shenqi detoxification granule combined with P311 inhibits epithelial-mesenchymal transition in renal fibrosis via TGF-β1-Smad-ILK pathway. Biosci Trends 2018; 11:640-650. [PMID: 29311449 DOI: 10.5582/bst.2017.01311] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Shenqi detoxification granule (SDG), a traditional Chinese herbal formula, has been shown to have nephroprotective and anti-fibrotic activities in patients with chronic kidney disease (CKD). However, its mechanisms in renal fibrosis and the progression of CKD remain largely unknown. P311, a highly conserved 8-kDa intracellular protein, plays a key role in renal fibrosis by regulating epithelial-mesenchymal transition (EMT). Previously, we found P311 might be involved in the pathogenesis of renal fibrosis by inhibiting EMT via the TGF-β1-Smad-ILK pathway. We also found SDG combined with P311 could ameliorate renal fibrosis by regulating the expression of EMT markers. Here we further examined the effect and mechanism of SDG combined with P311 on TGF-β1-mediated EMT in a rat model of unilateral ureteral occlusion (UUO) renal fibrosis. After establishment of the UUO model successfully, the rats were gavaged with SDG daily and/or injected with recombinant adenovirus p311 (also called Ad-P311) through the tail vein each week for 4 weeks. Serum creatinine (Cr), blood urea nitrogen (BUN) and albumin (ALB) levels were tested to observe renal function, and hematoxylin eosin (HE) and Masson staining were performed to observe kidney histopathology. Furthermore, the expression of EMT markers (E-cadherin and α-smooth muscle actin (α-SMA)) and EMT-related molecules TGF-β1, pSmad2/3, Smad7 and ILK were observed using immunohistochemical staining and Western blot analysis. Treatment with SDG and P311 improved renal function and histopathological abnormalities, as well as reversing the changes of EMT markers and EMT-related molecules, which indicated SDG combined with P311 could attenuate renal fibrosis in UUO rats, and the underlying mechanism might involve TGF-β1-mediated EMT and the TGF-β1-Smad-ILK signaling pathway. Therefore, SDG might be a novel alternative therapy for treating renal fibrosis and delaying the progression of CKD. Furthermore, SDG combined with P311 might have a synergistic effect on attenuating renal fibrosis.
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Affiliation(s)
- Pingping Cai
- Department of Traditional Chinese Medicine, Shandong Provincial Hospital affiliated to Shandong University
| | - Xiang Liu
- Department of Nephrology, Shandong Provincial Hospital affiliated to Shandong University
| | - Yuan Xu
- Department of Traditional Chinese Medicine, Shandong Provincial Hospital affiliated to Shandong University
| | - Fanghua Qi
- Department of Traditional Chinese Medicine, Shandong Provincial Hospital affiliated to Shandong University
| | - Guomin Si
- Department of Traditional Chinese Medicine, Shandong Provincial Hospital affiliated to Shandong University
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18
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Wang S, Zhang X, Qian W, Zhou D, Yu X, Zhan R, Wang Y, Wu J, He W, Luo G. P311 Deficiency Leads to Attenuated Angiogenesis in Cutaneous Wound Healing. Front Physiol 2017; 8:1004. [PMID: 29270129 PMCID: PMC5723677 DOI: 10.3389/fphys.2017.01004] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2017] [Accepted: 11/21/2017] [Indexed: 02/03/2023] Open
Abstract
P311 was identified to markedly promote cutaneous wound healing by our group. Angiogenesis plays a key role in wound healing. In this study, we sought to define the role of P311 in skin wound angiogenesis. It was noted that P311 was expressed in endothelial cells in the dermis of murine and human skin wounds. The expression of P311 was confirmed in cultured murine dermal microvascular endothelial cells (mDMECs). Moreover, it was found that knockout of P311 could attenuate the formation of tubes and motility of mDMECs significantly in vitro. In the subcutaneous Matrigel implant model, the angiogenesis was reduced significantly in P311 knockout mice. In addition, wound healing was delayed in P311 knockout mice compared with that in the wild type. Granulation tissue formation during the defective wound healing showed thinner and blood vessel numbers in wound areas in P311 knockout mice were decreased significantly. A reduction in VEGF and TGFβ1 was also found in P311 KO mice wounds, which implied that P311 may modulate the exprssion of VEGF and TGFβ1 in wound healing. Together, our findings suggest that P311 plays an important role in angiogenesis in wound healing.
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Affiliation(s)
- Song Wang
- State Key Laboratory of Trauma, Burn and Combined Injury, Institute of Burn Research, Southwest Hospital, Third Military Medical University, Chongqing, China
| | - Xiaorong Zhang
- State Key Laboratory of Trauma, Burn and Combined Injury, Institute of Burn Research, Southwest Hospital, Third Military Medical University, Chongqing, China
| | - Wei Qian
- State Key Laboratory of Trauma, Burn and Combined Injury, Institute of Burn Research, Southwest Hospital, Third Military Medical University, Chongqing, China
| | - Daijun Zhou
- State Key Laboratory of Trauma, Burn and Combined Injury, Institute of Burn Research, Southwest Hospital, Third Military Medical University, Chongqing, China
| | - Xunzhou Yu
- State Key Laboratory of Trauma, Burn and Combined Injury, Institute of Burn Research, Southwest Hospital, Third Military Medical University, Chongqing, China
| | - Rixing Zhan
- State Key Laboratory of Trauma, Burn and Combined Injury, Institute of Burn Research, Southwest Hospital, Third Military Medical University, Chongqing, China
| | - Ying Wang
- State Key Laboratory of Trauma, Burn and Combined Injury, Institute of Burn Research, Southwest Hospital, Third Military Medical University, Chongqing, China
| | - Jun Wu
- Department of Burns, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Weifeng He
- State Key Laboratory of Trauma, Burn and Combined Injury, Institute of Burn Research, Southwest Hospital, Third Military Medical University, Chongqing, China
| | - Gaoxing Luo
- State Key Laboratory of Trauma, Burn and Combined Injury, Institute of Burn Research, Southwest Hospital, Third Military Medical University, Chongqing, China
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19
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Xu R, Bai Y, Zhao J, Xia H, Kong Y, Yao Z, Yan R, Zhang X, Hu X, Liu M, Yang Q, Luo G, Wu J. Silicone rubber membrane with specific pore size enhances wound regeneration. J Tissue Eng Regen Med 2017; 12:e905-e917. [DOI: 10.1002/term.2414] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2016] [Revised: 01/07/2017] [Accepted: 01/13/2017] [Indexed: 12/24/2022]
Affiliation(s)
- Rui Xu
- Department of Neurology, Xinqiao Hospital & The Second Affiliated HospitalThird Military Medical University Chongqing China
| | - Yang Bai
- Institute of Burn Research, Southwest HospitalThird Military Medical University; State Key Laboratory of Trauma, Burn and Combined Injury; Chongqing Key Laboratory for Disease Proteomics Chongqing China
- Department of Otolaryngology, Southwest HospitalThird Military Medical University Chongqing China
| | - Jian Zhao
- State Key Laboratory of Polymer Materials EngineeringPolymer Research Institute of Sichuan University Chengdu China
| | - Hesheng Xia
- State Key Laboratory of Polymer Materials EngineeringPolymer Research Institute of Sichuan University Chengdu China
| | - Yi Kong
- Institute of Burn Research, Southwest HospitalThird Military Medical University; State Key Laboratory of Trauma, Burn and Combined Injury; Chongqing Key Laboratory for Disease Proteomics Chongqing China
| | - Zhihui Yao
- Institute of Burn Research, Southwest HospitalThird Military Medical University; State Key Laboratory of Trauma, Burn and Combined Injury; Chongqing Key Laboratory for Disease Proteomics Chongqing China
| | - Rongshuai Yan
- Institute of Burn Research, Southwest HospitalThird Military Medical University; State Key Laboratory of Trauma, Burn and Combined Injury; Chongqing Key Laboratory for Disease Proteomics Chongqing China
| | - Xiaorong Zhang
- Institute of Burn Research, Southwest HospitalThird Military Medical University; State Key Laboratory of Trauma, Burn and Combined Injury; Chongqing Key Laboratory for Disease Proteomics Chongqing China
| | - Xiaohong Hu
- Institute of Burn Research, Southwest HospitalThird Military Medical University; State Key Laboratory of Trauma, Burn and Combined Injury; Chongqing Key Laboratory for Disease Proteomics Chongqing China
| | - Meixi Liu
- Institute of Burn Research, Southwest HospitalThird Military Medical University; State Key Laboratory of Trauma, Burn and Combined Injury; Chongqing Key Laboratory for Disease Proteomics Chongqing China
| | - Qingwu Yang
- Department of Neurology, Xinqiao Hospital & The Second Affiliated HospitalThird Military Medical University Chongqing China
| | - Gaoxing Luo
- Institute of Burn Research, Southwest HospitalThird Military Medical University; State Key Laboratory of Trauma, Burn and Combined Injury; Chongqing Key Laboratory for Disease Proteomics Chongqing China
| | - Jun Wu
- Institute of Burn Research, Southwest HospitalThird Military Medical University; State Key Laboratory of Trauma, Burn and Combined Injury; Chongqing Key Laboratory for Disease Proteomics Chongqing China
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20
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Tan J, Wu J. Current progress in understanding the molecular pathogenesis of burn scar contracture. BURNS & TRAUMA 2017; 5:14. [PMID: 28546987 PMCID: PMC5441009 DOI: 10.1186/s41038-017-0080-1] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/13/2017] [Accepted: 04/17/2017] [Indexed: 01/17/2023]
Abstract
Abnormal wound healing is likely to induce scar formation, leading to dysfunction, deformity, and psychological trauma in burn patients. Despite the advancement of medical care treatment, scar contracture in burn patients remains a challenge. Myofibroblasts play a key role in scar contracture. It has been demonstrated that myofibroblasts, as well as inflammatory cells, fibroblasts, endothelial cells, and epithelial cells, secrete transforming growth factor-β1 (TGF-β1) and other cytokines, which can promote persistent myofibroblast activation via a positive regulation loop. In addition to the cellular contribution, the microenvironments, including the mechanical tension and integrin family, are also involved in scar contracture. Most recently, eukaryotic initiation factor 6 (eIF6), an upstream regulator of TGF-β1, has been demonstrated to be involved in myofibroblast differentiation and contraction in both in vitro fibroblast-populated collagen lattice (FPCL) and in vivo external mechanical stretch models. Moreover, the data showed that P311 could induce the transdifferentiation of epidermal stem cells to myofibroblasts by upregulating TGF-β1 expression, which mediated myofibroblast contraction. In this review, we briefly described the most current progress on the biological function of myofibroblasts in scar contracture and subsequently summarized the molecular events that initiated contracture. This would help us better understand the molecular basis of scar contracture as well as to find a comprehensive strategy for preventing/managing scar contracture.
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Affiliation(s)
- Jianglin Tan
- Institute of Burn Research, State Key Laboratory of Trauma, Burns and Combined Injuries, Chongqing Key Laboratory for Disease Proteomics, Southwest Hospital, Third Military Medical University, Chongqing, 400038 China
| | - Jun Wu
- Department of Burns, First Affiliated Hospital of Sun Yat-sen University, Guangzhou, 510080 China
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21
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Yao Z, Li H, He W, Yang S, Zhang X, Zhan R, Xu R, Tan J, Zhou J, Wu J, Luo G. P311 Accelerates Skin Wound Reepithelialization by Promoting Epidermal Stem Cell Migration Through RhoA and Rac1 Activation. Stem Cells Dev 2017; 26:451-460. [PMID: 27927130 DOI: 10.1089/scd.2016.0249] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Affiliation(s)
- Zhihui Yao
- State Key Laboratory of Trauma, Burn and Combined Injury, Institute of Burn Research, Southwest Hospital, Third Military Medical University, Chongqing, China
- People's Liberation Army Hospital 59, Kaiyuan, China
| | - Haisheng Li
- State Key Laboratory of Trauma, Burn and Combined Injury, Institute of Burn Research, Southwest Hospital, Third Military Medical University, Chongqing, China
| | - Weifeng He
- State Key Laboratory of Trauma, Burn and Combined Injury, Institute of Burn Research, Southwest Hospital, Third Military Medical University, Chongqing, China
| | - Sisi Yang
- State Key Laboratory of Trauma, Burn and Combined Injury, Institute of Burn Research, Southwest Hospital, Third Military Medical University, Chongqing, China
| | - Xiaorong Zhang
- State Key Laboratory of Trauma, Burn and Combined Injury, Institute of Burn Research, Southwest Hospital, Third Military Medical University, Chongqing, China
| | - Rixing Zhan
- State Key Laboratory of Trauma, Burn and Combined Injury, Institute of Burn Research, Southwest Hospital, Third Military Medical University, Chongqing, China
| | - Rui Xu
- State Key Laboratory of Trauma, Burn and Combined Injury, Institute of Burn Research, Southwest Hospital, Third Military Medical University, Chongqing, China
| | - Jianglin Tan
- State Key Laboratory of Trauma, Burn and Combined Injury, Institute of Burn Research, Southwest Hospital, Third Military Medical University, Chongqing, China
| | - Junyi Zhou
- State Key Laboratory of Trauma, Burn and Combined Injury, Institute of Burn Research, Southwest Hospital, Third Military Medical University, Chongqing, China
| | - Jun Wu
- State Key Laboratory of Trauma, Burn and Combined Injury, Institute of Burn Research, Southwest Hospital, Third Military Medical University, Chongqing, China
| | - Gaoxing Luo
- State Key Laboratory of Trauma, Burn and Combined Injury, Institute of Burn Research, Southwest Hospital, Third Military Medical University, Chongqing, China
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22
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Yang QQ, Yang SS, Tan JL, Luo GX, He WF, Wu J. Process of Hypertrophic Scar Formation: Expression of Eukaryotic Initiation Factor 6. Chin Med J (Engl) 2016; 128:2787-91. [PMID: 26481747 PMCID: PMC4736889 DOI: 10.4103/0366-6999.167359] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Background: Hypertrophic scar is one of the most common complications and often causes the disfigurement or deformity in burn or trauma patients. Therapeutic methods on hypertrophic scar treatment have limitations due to the poor understanding of mechanisms of hypertrophic scar formation. To throw light on the molecular mechanism of hypertrophic scar formation will definitely improve the outcome of the treatment. This study aimed to illustrate the negative role of eukaryotic initiation factor 6 (eIF6) in the process of human hypertrophic scar formation, and provide a possible indicator of hypertrophic scar treatment and a potential target molecule for hypertrophic scar. Methods: In the present study, we investigated the protein expression of eIF6 in the human hypertrophic scar of different periods by immunohistochemistry and Western blot analysis. Results: In the hypertrophic scar tissue, eIF6 expression was significantly decreased and absent in the basal layer of epidermis in the early period, and increased slowly and began to appear in the basal layer of epidermis by the scar formation time. Conclusions: This study confirmed that eIF6 expression was significantly related to the development of hypertrophic scar, and the eIF6 may be a target molecule for hypertrophic scar control or could be an indicator of the outcomes for other treatment modalities.
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Affiliation(s)
| | | | | | | | | | - Jun Wu
- Institute of Burn Research, State Key Laboratory of Trauma, Burn and Combined Injury, Southwest Hospital, The Third Military Medical University, Chongqing 400038; Chongqing Key Laboratory for Disease Proteomics, The Third Military Medical University, Chongqing 400038, China
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23
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Plantier L, Renaud H, Respaud R, Marchand-Adam S, Crestani B. Transcriptome of Cultured Lung Fibroblasts in Idiopathic Pulmonary Fibrosis: Meta-Analysis of Publically Available Microarray Datasets Reveals Repression of Inflammation and Immunity Pathways. Int J Mol Sci 2016; 17:ijms17122091. [PMID: 27983601 PMCID: PMC5187891 DOI: 10.3390/ijms17122091] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2016] [Revised: 12/02/2016] [Accepted: 12/05/2016] [Indexed: 12/21/2022] Open
Abstract
Heritable profibrotic differentiation of lung fibroblasts is a key mechanism of idiopathic pulmonary fibrosis (IPF). Its mechanisms are yet to be fully understood. In this study, individual data from four independent microarray studies comparing the transcriptome of fibroblasts cultured in vitro from normal (total n = 20) and IPF (total n = 20) human lung were compiled for meta-analysis following normalization to z-scores. One hundred and thirteen transcripts were upregulated and 115 were downregulated in IPF fibroblasts using the Significance Analysis of Microrrays algorithm with a false discovery rate of 5%. Downregulated genes were highly enriched for Gene Ontology and Kyoto Encyclopedia of Genes and Genomes (KEGG) functional classes related to inflammation and immunity such as Defense response to virus, Influenza A, tumor necrosis factor (TNF) mediated signaling pathway, interferon-inducible absent in melanoma2 (AIM2) inflammasome as well as Apoptosis. Although upregulated genes were not enriched for any functional class, select factors known to play key roles in lung fibrogenesis were overexpressed in IPF fibroblasts, most notably connective tissue growth factor (CTGF) and serum response factor (SRF), supporting their role as drivers of IPF. The full data table is available as a supplement.
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Affiliation(s)
- Laurent Plantier
- Centre d'Étude des Pathologies Respiratoires-CEPR, Institut National de la Santé et de la Recherche Médicale-INSERM, Unité Mixte de Recherche-UMR1100, Labex Mabimprove, 37000 Tours, France.
- Université François Rabelais, 37000 Tours, France.
- Centre Hospitalier Régional Universitaire-CHRU de Tours, Hôpital Bretonneau, Service de Pneumologie et Explorations Fonctionnelles Respiratoires, 37000 Tours, France.
| | - Hélène Renaud
- Institut National de la Santé et de la Recherche Médicale-INSERM, Unité Mixte de Recherche-UMR1152, Labex Inflamex, 75018 Paris, France.
| | - Renaud Respaud
- Centre d'Étude des Pathologies Respiratoires-CEPR, Institut National de la Santé et de la Recherche Médicale-INSERM, Unité Mixte de Recherche-UMR1100, Labex Mabimprove, 37000 Tours, France.
- Université François Rabelais, 37000 Tours, France.
- Centre Hospitalier Régional Universitaire-CHRU de Tours, Hôpital Trousseau, Service de Pharmacie, 37170 Chambray-les-Tours, France.
| | - Sylvain Marchand-Adam
- Centre d'Étude des Pathologies Respiratoires-CEPR, Institut National de la Santé et de la Recherche Médicale-INSERM, Unité Mixte de Recherche-UMR1100, Labex Mabimprove, 37000 Tours, France.
- Université François Rabelais, 37000 Tours, France.
- Centre Hospitalier Régional Universitaire-CHRU de Tours, Hôpital Bretonneau, Service de Pneumologie et Explorations Fonctionnelles Respiratoires, 37000 Tours, France.
| | - Bruno Crestani
- Institut National de la Santé et de la Recherche Médicale-INSERM, Unité Mixte de Recherche-UMR1152, Labex Inflamex, 75018 Paris, France.
- Université Paris Diderot, PRES Sorbonne Paris Cité, 75018 Paris, France.
- AP-HP, Hôpital Bichat, Service de Pneumologie A, DHU FIRE, 75018 Paris, France.
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Cheng T, Yue M, Aslam MN, Wang X, Shekhawat G, Varani J, Schuger L. Neuronal Protein 3.1 Deficiency Leads to Reduced Cutaneous Scar Collagen Deposition and Tensile Strength due to Impaired Transforming Growth Factor-β1 to -β3 Translation. THE AMERICAN JOURNAL OF PATHOLOGY 2016; 187:292-303. [PMID: 27939132 DOI: 10.1016/j.ajpath.2016.10.004] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/20/2016] [Revised: 09/06/2016] [Accepted: 10/06/2016] [Indexed: 01/17/2023]
Abstract
Neuronal protein 3.1 (P311), a conserved RNA-binding protein, represents the first documented protein known to stimulate transforming growth factor (TGF)-β1 to -β3 translation in vitro and in vivo. Because TGF-βs play critical roles in fibrogenesis, we initiated efforts to define the role of P311 in skin scar formation. Here, we show that P311 is up-regulated in skin wounds and in normal and hypertrophic scars. Genetic ablation of p311 resulted in a significant decrease in skin scar collagen deposition. Lentiviral transfer of P311 corrected the deficits, whereas down-regulation of P311 levels by lentiviral RNA interference reproduced the deficits seen in P311-/- mice. The decrease in collagen deposition resulted in scars with reduced stiffness but also reduced scar tensile strength. In vitro studies using murine and human dermal fibroblasts showed that P311 stimulated TGF-β1 to -β3 translation, a process that involved eukaryotic translation initiation factor 3 subunit b as a P311 binding partner. This resulted in increased TGF-β levels/activity and increased collagen production. In addition, P311 induced dermal fibroblast activation and proliferation. Finally, exogenous TGF-β1 to -β3, each restituted the normal scar phenotype. These studies demonstrate that P311 is required for the production of normal cutaneous scars and place P311 immediately up-stream of TGF-βs in the process of fibrogenesis. Conditions that decrease P311 levels could result in less tensile scars, which could potentially lead to higher incidence of dehiscence after surgery.
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Affiliation(s)
- Tao Cheng
- Department of Pathology, The University of Chicago Medical School, Chicago, Illinois
| | - Michael Yue
- Department of Pathology, The University of Chicago Medical School, Chicago, Illinois
| | - Muhammad Nadeem Aslam
- Department of Pathology, The University of Michigan Medical School, Ann Arbor, Michigan
| | - Xin Wang
- Department of Materials Science and Engineering, Northwestern University, Evanston, Illinois
| | - Gajendra Shekhawat
- Department of Materials Science and Engineering, Northwestern University, Evanston, Illinois
| | - James Varani
- Department of Pathology, The University of Michigan Medical School, Ann Arbor, Michigan
| | - Lucia Schuger
- Department of Pathology, The University of Chicago Medical School, Chicago, Illinois.
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25
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Li H, Yao Z, He W, Gao H, Bai Y, Yang S, Zhang L, Zhan R, Tan J, Zhou J, Takata M, Wu J, Luo G. P311 induces the transdifferentiation of epidermal stem cells to myofibroblast-like cells by stimulating transforming growth factor β1 expression. Stem Cell Res Ther 2016; 7:175. [PMID: 27906099 PMCID: PMC5131552 DOI: 10.1186/s13287-016-0421-1] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2016] [Accepted: 10/11/2016] [Indexed: 11/10/2022] Open
Abstract
Background Epithelial to mesenchymal transition, especially to myofibroblasts, plays an important role in wound healing, fibrosis, and carcinogenesis. Epidermal stem cells (EpSCs) are responsible for epidermal renewal and wound re-epithelialization. However, it remains unclear whether and how EpSCs transdifferentiate into myofibroblasts or myofibroblast-like cells (MFLCs). Here, we provide the first evidence showing that P311 induces EpSC to MFLC transdifferentiation (EpMyT) via TGFβ1/Smad signaling. Methods Wound healing and mesenchymal features were observed in the P311 KO and P311 WT mouse model of superficial second-degree burns. After the primary human or mouse EpSCs were forced to highly express P311 using an adenoviral vector, EpMyT was observed by immunofluorescence, real-time PCR, and western blot. The activity of TGFβ1 and Smad2/3 in EpSCs with different P311 levels was observed by western blot. The TβRI/II inhibitor LY2109761 and Smad3 siRNA were applied to block the EpMyT in P311-overexpressing EpSCs and exogenous TGFβ1 was to restore the EpMyT in P311 KO EpSCs. Furthermore, the mechanism of P311 regulating TGFβ1 was investigated by bisulfite sequencing PCR, luciferase activity assay, and real-time PCR. Results P311 KO mouse wounds showed delayed re-epithelialization and reduced mesenchymal features. The human or mouse EpSCs with overexpressed P311 exhibited fusiform morphological changes, upregulated expression of myofibroblast markers (α-SMA and vimentin), and downregulated expression of EpSC markers (β1-integrin and E-cadherin). P311-expressing EpSCs showed decreased TGFβ1 mRNA and increased TGFβ1 protein, TβRI/II mRNA, and activated Smad2/3. Moreover, LY2109761 and Smad3 siRNA reversed P311-induced EpMyT. Under the stimulation of exogenous TGFβ1, the phosphorylation of Smad2 and Smad3 in P311 KO EpSCs was significantly lower than that in P311 WT EpSCs and the EpMyT in P311 KO EpSCs was restored. Furthermore, P311 enhanced the methylation of TGFβ1 promoter and increased activities of TGFβ1 5′/3′ untranslated regions (UTRs) to stimulate TGFβ1 expression. P311+α-SMA+ cells and P311+vimentin+ cells were observed in the epidermis of human burn wounds. Also, P311 was upregulated by IL-1β, IL-6, TNFα, and hypoxia. Conclusions P311 is a novel TGFβ1/Smad signaling-mediated regulator of transdifferentiation in EpSCs during cutaneous wound healing. Furthermore, P311 might stimulate TGFβ1 expression by promoting TGFβ1 promoter methylation and by activating the TGFβ1 5′/3′ UTR. Electronic supplementary material The online version of this article (doi:10.1186/s13287-016-0421-1) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Haisheng Li
- Institute of Burn Research, State Key Laboratory of Trauma, Burn and Combined Injury, Southwest Hospital, Third Military Medical University, Chongqing, China
| | - Zhihui Yao
- Institute of Burn Research, State Key Laboratory of Trauma, Burn and Combined Injury, Southwest Hospital, Third Military Medical University, Chongqing, China.,People's Liberation Army Hospital 59, Kaiyuan, Yunnan Province, China
| | - Weifeng He
- Institute of Burn Research, State Key Laboratory of Trauma, Burn and Combined Injury, Southwest Hospital, Third Military Medical University, Chongqing, China
| | - Hongyan Gao
- Institute of Burn Research, State Key Laboratory of Trauma, Burn and Combined Injury, Southwest Hospital, Third Military Medical University, Chongqing, China
| | - Yang Bai
- Institute of Burn Research, State Key Laboratory of Trauma, Burn and Combined Injury, Southwest Hospital, Third Military Medical University, Chongqing, China
| | - Sisi Yang
- Institute of Burn Research, State Key Laboratory of Trauma, Burn and Combined Injury, Southwest Hospital, Third Military Medical University, Chongqing, China
| | - Lu Zhang
- Institute of Burn Research, State Key Laboratory of Trauma, Burn and Combined Injury, Southwest Hospital, Third Military Medical University, Chongqing, China
| | - Rixing Zhan
- Institute of Burn Research, State Key Laboratory of Trauma, Burn and Combined Injury, Southwest Hospital, Third Military Medical University, Chongqing, China
| | - Jianglin Tan
- Institute of Burn Research, State Key Laboratory of Trauma, Burn and Combined Injury, Southwest Hospital, Third Military Medical University, Chongqing, China
| | - Junyi Zhou
- Institute of Burn Research, State Key Laboratory of Trauma, Burn and Combined Injury, Southwest Hospital, Third Military Medical University, Chongqing, China
| | - Masao Takata
- Section of Anaesthetics, Pain Medicine and Intensive Care, Faculty of Medicine, Imperial College London, Chelsea and Westminster Hospital, London, UK
| | - Jun Wu
- Institute of Burn Research, State Key Laboratory of Trauma, Burn and Combined Injury, Southwest Hospital, Third Military Medical University, Chongqing, China.
| | - Gaoxing Luo
- Institute of Burn Research, State Key Laboratory of Trauma, Burn and Combined Injury, Southwest Hospital, Third Military Medical University, Chongqing, China.
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26
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Qi F, Cai P, Liu X, Peng M, Si G. Adenovirus-mediated P311 inhibits TGF-β1-induced epithelial-mesenchymal transition in NRK-52E cells via TGF-β1-Smad-ILK pathway. Biosci Trends 2016; 9:299-306. [PMID: 26559022 DOI: 10.5582/bst.2015.01129] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
P311, a highly conserved 8-kDa intracellular protein, has been indicated as an important factor in myofibroblast transformation and in the progression of fibrosis. In the present study, we constructed a recombinant adenovirus vector of p311 (called Ad-P311) and transferred it into rat renal proximal tubular epithelial cells (NRK-52E) to explore the effect of P311 on epithelial-mesenchymal transition (EMT) of NRK-52E cells induced by TGF-β1 and to elucidate its underlying mechanism against EMT. After successfully construction of Ad-P311 and transfer into NRK-52E cells, the proliferation and growth of P311-expressing cells was detected by MTT assay. TGF-β1 was used to induce NRK-52E cells and Western blot analysis was used to examine the EMT markers (E-cadherin and α-smooth muscle actin (α-SMA)), signal transducers (p-Smad2/3 and Smad7). Integrin Linked Kinase (ILK) as a key intracellular mediator that controls TGF-β1-induced-EMT was also assayed by Western blot analysis. The results showed that P311 transfection could significantly inhibit the proliferation and growth of TGF-β1 induced NRK-52E cells. The results also showed that TGF-β1 could induce EMT in NRK-52E cells through Smad-ILK signaling pathway with an increase in α-SMA, pSmad2/3 and ILK expression, and a decrease in E-cadherin and Smad7 expression. However, P311 efficiently blocked Smad-ILK pathway activation and attenuated all these EMT changes induced by TGF-β1. These findings suggest that P311 might be involved in the pathogenesis of renal fibrosis by inhibiting the EMT process via TGF-β1-Smad-ILK pathway. P311 might be a novel target for the control of renal fibrosis and the progression of CKD.
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Affiliation(s)
- Fanghua Qi
- Department of Traditional Chinese Medicine, Shandong Provincial Hospital affiliated to Shandong University
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27
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Xu R, Xia H, He W, Li Z, Zhao J, Liu B, Wang Y, Lei Q, Kong Y, Bai Y, Yao Z, Yan R, Li H, Zhan R, Yang S, Luo G, Wu J. Controlled water vapor transmission rate promotes wound-healing via wound re-epithelialization and contraction enhancement. Sci Rep 2016; 6:24596. [PMID: 27086569 PMCID: PMC4834567 DOI: 10.1038/srep24596] [Citation(s) in RCA: 171] [Impact Index Per Article: 21.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2015] [Accepted: 03/30/2016] [Indexed: 11/10/2022] Open
Abstract
A desirable microenvironment is essential for wound healing, in which an ideal moisture content is one of the most important factors. The fundamental function and requirement for wound dressings is to keep the wound at an optimal moisture. Here, we prepared serial polyurethane (PU) membrane dressings with graded water vapor transmission rates (WVTRs), and the optimal WVTR of the dressing for wound healing was identified by both in vitro and in vivo studies. It was found that the dressing with a WVTR of 2028.3 ± 237.8 g/m2·24 h was able to maintain an optimal moisture content for the proliferation and regular function of epidermal cells and fibroblasts in a three-dimensional culture model. Moreover, the dressing with this optimal WTVR was found to be able to promote wound healing in a mouse skin wound model. Our finds may be helpful in the design of wound dressing for wound regeneration in the future.
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Affiliation(s)
- Rui Xu
- Institute of Burn Research, Southwest Hospital; State Key Lab of Trauma, Burn and Combined Injury; Chongqing Key Laboratory for Disease Proteomics, Third Military Medical University, Chongqing 400038, China
| | - Hesheng Xia
- State Key Laboratory of Polymer Materials Engineering, Polymer Research Institute of Sichuan University, Chengdu 610065, China
| | - Weifeng He
- Institute of Burn Research, Southwest Hospital; State Key Lab of Trauma, Burn and Combined Injury; Chongqing Key Laboratory for Disease Proteomics, Third Military Medical University, Chongqing 400038, China
| | - Zhichao Li
- State Key Laboratory of Polymer Materials Engineering, Polymer Research Institute of Sichuan University, Chengdu 610065, China
| | - Jian Zhao
- State Key Laboratory of Polymer Materials Engineering, Polymer Research Institute of Sichuan University, Chengdu 610065, China
| | - Bo Liu
- State Key Laboratory of Polymer Materials Engineering, Polymer Research Institute of Sichuan University, Chengdu 610065, China
| | - Yuzhen Wang
- Institute of Burn Research, Southwest Hospital; State Key Lab of Trauma, Burn and Combined Injury; Chongqing Key Laboratory for Disease Proteomics, Third Military Medical University, Chongqing 400038, China
| | - Qiang Lei
- Institute of Burn Research, Southwest Hospital; State Key Lab of Trauma, Burn and Combined Injury; Chongqing Key Laboratory for Disease Proteomics, Third Military Medical University, Chongqing 400038, China
| | - Yi Kong
- Institute of Burn Research, Southwest Hospital; State Key Lab of Trauma, Burn and Combined Injury; Chongqing Key Laboratory for Disease Proteomics, Third Military Medical University, Chongqing 400038, China
| | - Yang Bai
- Institute of Burn Research, Southwest Hospital; State Key Lab of Trauma, Burn and Combined Injury; Chongqing Key Laboratory for Disease Proteomics, Third Military Medical University, Chongqing 400038, China
| | - Zhihui Yao
- Institute of Burn Research, Southwest Hospital; State Key Lab of Trauma, Burn and Combined Injury; Chongqing Key Laboratory for Disease Proteomics, Third Military Medical University, Chongqing 400038, China
| | - Rongshuai Yan
- Institute of Burn Research, Southwest Hospital; State Key Lab of Trauma, Burn and Combined Injury; Chongqing Key Laboratory for Disease Proteomics, Third Military Medical University, Chongqing 400038, China
| | - Haisheng Li
- Institute of Burn Research, Southwest Hospital; State Key Lab of Trauma, Burn and Combined Injury; Chongqing Key Laboratory for Disease Proteomics, Third Military Medical University, Chongqing 400038, China
| | - Rixing Zhan
- Institute of Burn Research, Southwest Hospital; State Key Lab of Trauma, Burn and Combined Injury; Chongqing Key Laboratory for Disease Proteomics, Third Military Medical University, Chongqing 400038, China
| | - Sisi Yang
- Institute of Burn Research, Southwest Hospital; State Key Lab of Trauma, Burn and Combined Injury; Chongqing Key Laboratory for Disease Proteomics, Third Military Medical University, Chongqing 400038, China
| | - Gaoxing Luo
- Institute of Burn Research, Southwest Hospital; State Key Lab of Trauma, Burn and Combined Injury; Chongqing Key Laboratory for Disease Proteomics, Third Military Medical University, Chongqing 400038, China
| | - Jun Wu
- Institute of Burn Research, Southwest Hospital; State Key Lab of Trauma, Burn and Combined Injury; Chongqing Key Laboratory for Disease Proteomics, Third Military Medical University, Chongqing 400038, China
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28
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Wang Y, Chen Z, Luo G, He W, Xu K, Xu R, Lei Q, Tan J, Wu J, Xing M. In-Situ-Generated Vasoactive Intestinal Peptide Loaded Microspheres in Mussel-Inspired Polycaprolactone Nanosheets Creating Spatiotemporal Releasing Microenvironment to Promote Wound Healing and Angiogenesis. ACS APPLIED MATERIALS & INTERFACES 2016; 8:7411-7421. [PMID: 26914154 DOI: 10.1021/acsami.5b11332] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Vasoactive intestinal peptide (VIP) was reported to promote angiogenesis. Electrospun nanofibers lead to idea wound dressing substrates. Here we report a convenient and novel method to produce VIP loaded microspheres in polycaprolactone (PCL) nanofibrous membrane without complicated processes. We first coated mussel-inspired dopamine (DA) to nanofibers, then used strong adhesive DA to absorb the functional peptide. PCL membrane was then immersed into acetone to generate microspheres with VIP loading. We employed high pressure liquid chromatography to record encapsulation efficiency of (31.8 ± 2.2)% and loading capacity of (1.71 ± 0.16)%. The release profile of VIP from nanosheets showed a prolonged release. The results of laser scanning confocal microscope, scanning electron microscope and cell counting kit-8 proliferation assays showed that cell adhesion and proliferation were promoted. In order to verify the efficacy on wound healing, in vivo implantation was applied in the full-thickness defect wounds of BALB/c mice. Results showed that the wound healing was significantly promoted via favoring the growth of granulation tissue and angiogenesis. However, we found wound re-epithelialization was not significantly improved. The resulting VIP-DA-coated PCL (PCL-DA-VIP) nanosheets with spatiotemporal delivery of VIP could be a potential application in wound treatment and vascular tissue engineering.
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Affiliation(s)
- Yuzhen Wang
- Institute of Burn Research, State Key Laboratory of Trauma, Burn and Combined Injury, Southwest Hospital, The Third Military Medical University , Chongqing 400038, China
- Chongqing Key Laboratory for Disease Proteomics , Chongqing 400038, China
| | - Zhiqiang Chen
- Institute of Burn Research, State Key Laboratory of Trauma, Burn and Combined Injury, Southwest Hospital, The Third Military Medical University , Chongqing 400038, China
- Chongqing Key Laboratory for Disease Proteomics , Chongqing 400038, China
| | - Gaoxing Luo
- Institute of Burn Research, State Key Laboratory of Trauma, Burn and Combined Injury, Southwest Hospital, The Third Military Medical University , Chongqing 400038, China
- Chongqing Key Laboratory for Disease Proteomics , Chongqing 400038, China
| | - Weifeng He
- Institute of Burn Research, State Key Laboratory of Trauma, Burn and Combined Injury, Southwest Hospital, The Third Military Medical University , Chongqing 400038, China
- Chongqing Key Laboratory for Disease Proteomics , Chongqing 400038, China
| | - Kaige Xu
- Department of Mechanical Engineering, University of Manitoba , Winnipeg Manitoba R3T 2N2, Canada
- Department of Biochemistry and Medical Genetics, University of Manitoba , Winnipeg Manitoba R3T 2N2, Canada
- Children's Hospital Research Institute of Manitoba , Winnipeg, Manitoba R3E 3P4, Canada
| | - Rui Xu
- Institute of Burn Research, State Key Laboratory of Trauma, Burn and Combined Injury, Southwest Hospital, The Third Military Medical University , Chongqing 400038, China
- Chongqing Key Laboratory for Disease Proteomics , Chongqing 400038, China
| | - Qiang Lei
- Institute of Burn Research, State Key Laboratory of Trauma, Burn and Combined Injury, Southwest Hospital, The Third Military Medical University , Chongqing 400038, China
- Chongqing Key Laboratory for Disease Proteomics , Chongqing 400038, China
| | - Jianglin Tan
- Institute of Burn Research, State Key Laboratory of Trauma, Burn and Combined Injury, Southwest Hospital, The Third Military Medical University , Chongqing 400038, China
- Chongqing Key Laboratory for Disease Proteomics , Chongqing 400038, China
| | - Jun Wu
- Institute of Burn Research, State Key Laboratory of Trauma, Burn and Combined Injury, Southwest Hospital, The Third Military Medical University , Chongqing 400038, China
- Chongqing Key Laboratory for Disease Proteomics , Chongqing 400038, China
| | - Malcolm Xing
- Department of Mechanical Engineering, University of Manitoba , Winnipeg Manitoba R3T 2N2, Canada
- Department of Biochemistry and Medical Genetics, University of Manitoba , Winnipeg Manitoba R3T 2N2, Canada
- Children's Hospital Research Institute of Manitoba , Winnipeg, Manitoba R3E 3P4, Canada
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Liang S, Kisseleva T, Brenner DA. The Role of NADPH Oxidases (NOXs) in Liver Fibrosis and the Activation of Myofibroblasts. Front Physiol 2016; 7:17. [PMID: 26869935 PMCID: PMC4735448 DOI: 10.3389/fphys.2016.00017] [Citation(s) in RCA: 142] [Impact Index Per Article: 17.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2015] [Accepted: 01/12/2016] [Indexed: 12/18/2022] Open
Abstract
Chronic liver injury, resulted from different etiologies (e.g., virus infection, alcohol abuse, nonalcoholic steatohepatitis (NASH) and cholestasis) can lead to liver fibrosis characterized by the excess accumulation of extracellular matrix (ECM) proteins (e.g., type I collagen). Hepatic myofibroblasts that are activated upon liver injury are the key producers of ECM proteins, contributing to both the initiation and progression of liver fibrosis. Hepatic stellate cells (HSCs) and to a lesser extent, portal fibroblast, are believed to be the precursor cells that give rise to hepatic myofibroblasts in response to liver injury. Although, much progress has been made toward dissecting the lineage origin of myofibroblasts, how these cells are activated and become functional producers of ECM proteins remains incompletely understood. Activation of myofibroblasts is a complex process that involves the interactions between parenchymal and non-parenchymal cells, which drives the phenotypic change of HSCs from a quiescent stage to a myofibroblastic and active phenotype. Accumulating evidence has suggested a critical role of NADPH oxidase (NOX), a multi-component complex that catalyzes reactions from molecular oxygen to reactive oxygen species (ROS), in the activation process of hepatic myofibroblasts. NOX isoforms, including NOX1, NOX2 and NOX4, and NOX-derived ROS, have all been implicated to regulate HSC activation and hepatocyte apoptosis, both of which are essential steps for initiating liver fibrosis. This review highlights the importance of NOX isoforms in hepatic myofibroblast activation and the progression of liver fibrosis, and also discusses the therapeutic potential of targeting NOXs for liver fibrosis and associated hepatic diseases.
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Affiliation(s)
- Shuang Liang
- Department of Surgery, University of California, San DiegoLa Jolla, CA, USA; Department of Medicine, University of California, San DiegoLa Jolla, CA, USA
| | - Tatiana Kisseleva
- Department of Surgery, University of California, San Diego La Jolla, CA, USA
| | - David A Brenner
- Department of Medicine, University of California, San Diego La Jolla, CA, USA
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30
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Lei Q, Li Z, Xu R, Wang Y, Li H, Wang Y, Liu M, Yang S, Zhan R, Zhao J, Liu B, Hu X, Zhang X, He W, Wu J, Xia H, Luo G. Biomimetic thermoplastic polyurethane porous membrane with hierarchical structure accelerates wound healing by enhancing granulation tissue formation and angiogenesis. RSC Adv 2016. [DOI: 10.1039/c6ra20567d] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Wound dressing with hierarchical structure enhances wound healing.
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Affiliation(s)
- Qiang Lei
- Institute of Burn Research
- State Key Laboratory of Trauma, Burn and Combined Injury
- Southwest Hospital
- the Third Military Medical University
- Chongqing
| | - Zhichao Li
- State Key Laboratory of Polymer Materials Engineering
- Polymer Research Institute of Sichuan University
- Chengdu
- China
| | - Rui Xu
- Institute of Burn Research
- State Key Laboratory of Trauma, Burn and Combined Injury
- Southwest Hospital
- the Third Military Medical University
- Chongqing
| | - Yuzhen Wang
- Institute of Burn Research
- State Key Laboratory of Trauma, Burn and Combined Injury
- Southwest Hospital
- the Third Military Medical University
- Chongqing
| | - Haisheng Li
- Institute of Burn Research
- State Key Laboratory of Trauma, Burn and Combined Injury
- Southwest Hospital
- the Third Military Medical University
- Chongqing
| | - Ying Wang
- Institute of Burn Research
- State Key Laboratory of Trauma, Burn and Combined Injury
- Southwest Hospital
- the Third Military Medical University
- Chongqing
| | - Menglong Liu
- Institute of Burn Research
- State Key Laboratory of Trauma, Burn and Combined Injury
- Southwest Hospital
- the Third Military Medical University
- Chongqing
| | - Sisi Yang
- Institute of Burn Research
- State Key Laboratory of Trauma, Burn and Combined Injury
- Southwest Hospital
- the Third Military Medical University
- Chongqing
| | - Rixing Zhan
- Institute of Burn Research
- State Key Laboratory of Trauma, Burn and Combined Injury
- Southwest Hospital
- the Third Military Medical University
- Chongqing
| | - Jian Zhao
- State Key Laboratory of Polymer Materials Engineering
- Polymer Research Institute of Sichuan University
- Chengdu
- China
| | - Bo Liu
- State Key Laboratory of Polymer Materials Engineering
- Polymer Research Institute of Sichuan University
- Chengdu
- China
| | - Xiaohong Hu
- Institute of Burn Research
- State Key Laboratory of Trauma, Burn and Combined Injury
- Southwest Hospital
- the Third Military Medical University
- Chongqing
| | - Xiaorong Zhang
- Institute of Burn Research
- State Key Laboratory of Trauma, Burn and Combined Injury
- Southwest Hospital
- the Third Military Medical University
- Chongqing
| | - Weifeng He
- Institute of Burn Research
- State Key Laboratory of Trauma, Burn and Combined Injury
- Southwest Hospital
- the Third Military Medical University
- Chongqing
| | - Jun Wu
- Institute of Burn Research
- State Key Laboratory of Trauma, Burn and Combined Injury
- Southwest Hospital
- the Third Military Medical University
- Chongqing
| | - Hesheng Xia
- State Key Laboratory of Polymer Materials Engineering
- Polymer Research Institute of Sichuan University
- Chengdu
- China
| | - Gaoxing Luo
- Institute of Burn Research
- State Key Laboratory of Trauma, Burn and Combined Injury
- Southwest Hospital
- the Third Military Medical University
- Chongqing
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Wang Y, Xu R, Luo G, Lei Q, Shu Q, Yao Z, Li H, Zhou J, Tan J, Yang S, Zhan R, He W, Wu J. Biomimetic fibroblast-loaded artificial dermis with "sandwich" structure and designed gradient pore sizes promotes wound healing by favoring granulation tissue formation and wound re-epithelialization. Acta Biomater 2016; 30:246-257. [PMID: 26602823 DOI: 10.1016/j.actbio.2015.11.035] [Citation(s) in RCA: 55] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2015] [Revised: 11/17/2015] [Accepted: 11/17/2015] [Indexed: 12/18/2022]
Abstract
The structure of dermal scaffolds greatly affects the engineered tissue's functions and the activities of seeded cells. Current strategies of dermal scaffold design tend to yield a homogeneous architecture with a uniform pore size. However, the structures of the human dermis are not homogeneous in terms of either interstitial spaces or architecture at different dermal depths. In the present study, a biomimetic fibroblasts-loaded artificial dermis composed of three-layer scaffolds with different pore sizes was prepared. The three-layer scaffolds, which look similar to a sandwich, mimic the natural structures of the human dermis, which has comparatively larger pores in the outer layers and smaller pores in the middle layer. The fibroblasts-loaded artificial dermis were shown to favor wound healing by promoting granulation tissue formation and wound re-epithelialization, as determined by a histological study and Western blotting. Our data indicated that the biomimetic fibroblasts-loaded artificial dermis with "Sandwich" structure and designed gradient pore sizes may hold promise as tissue-engineered dermis. STATEMENT OF SIGNIFICANCE Pore size effect on wound healing had been extensively studied. However, it is still not well understood whether dermal scaffolds with a uniform pore size are better than that with varied pore sizes, which are similar to human dermis as determined by our previous work. In our study, we demonstrated that the "sandwich" collagen scaffolds mimicking the natural structures of the human dermis significantly promoted wound healing compared with the "Homogeneous" scaffolds with a uniform pore size. These results may be helpful in the design of dermal scaffolds.
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Affiliation(s)
- Yuzhen Wang
- Institute of Burn Research, State Key Laboratory of Trauma, Burn and Combined Injury, Southwest Hospital, The Third Military Medical University, Chongqing 400038, China; Chongqing Key Laboratory for Disease Proteomics, Chongqing 400038, China
| | - Rui Xu
- Institute of Burn Research, State Key Laboratory of Trauma, Burn and Combined Injury, Southwest Hospital, The Third Military Medical University, Chongqing 400038, China; Chongqing Key Laboratory for Disease Proteomics, Chongqing 400038, China
| | - Gaoxing Luo
- Institute of Burn Research, State Key Laboratory of Trauma, Burn and Combined Injury, Southwest Hospital, The Third Military Medical University, Chongqing 400038, China; Chongqing Key Laboratory for Disease Proteomics, Chongqing 400038, China
| | - Qiang Lei
- Institute of Burn Research, State Key Laboratory of Trauma, Burn and Combined Injury, Southwest Hospital, The Third Military Medical University, Chongqing 400038, China; Chongqing Key Laboratory for Disease Proteomics, Chongqing 400038, China
| | - Qin Shu
- Institute of Burn Research, State Key Laboratory of Trauma, Burn and Combined Injury, Southwest Hospital, The Third Military Medical University, Chongqing 400038, China; Chongqing Key Laboratory for Disease Proteomics, Chongqing 400038, China
| | - Zhihui Yao
- Institute of Burn Research, State Key Laboratory of Trauma, Burn and Combined Injury, Southwest Hospital, The Third Military Medical University, Chongqing 400038, China; Chongqing Key Laboratory for Disease Proteomics, Chongqing 400038, China
| | - Haisheng Li
- Institute of Burn Research, State Key Laboratory of Trauma, Burn and Combined Injury, Southwest Hospital, The Third Military Medical University, Chongqing 400038, China; Chongqing Key Laboratory for Disease Proteomics, Chongqing 400038, China
| | - Junyi Zhou
- Institute of Burn Research, State Key Laboratory of Trauma, Burn and Combined Injury, Southwest Hospital, The Third Military Medical University, Chongqing 400038, China; Chongqing Key Laboratory for Disease Proteomics, Chongqing 400038, China
| | - Jianglin Tan
- Institute of Burn Research, State Key Laboratory of Trauma, Burn and Combined Injury, Southwest Hospital, The Third Military Medical University, Chongqing 400038, China; Chongqing Key Laboratory for Disease Proteomics, Chongqing 400038, China
| | - Sisi Yang
- Institute of Burn Research, State Key Laboratory of Trauma, Burn and Combined Injury, Southwest Hospital, The Third Military Medical University, Chongqing 400038, China; Chongqing Key Laboratory for Disease Proteomics, Chongqing 400038, China
| | - Rixing Zhan
- Institute of Burn Research, State Key Laboratory of Trauma, Burn and Combined Injury, Southwest Hospital, The Third Military Medical University, Chongqing 400038, China; Chongqing Key Laboratory for Disease Proteomics, Chongqing 400038, China
| | - Weifeng He
- Institute of Burn Research, State Key Laboratory of Trauma, Burn and Combined Injury, Southwest Hospital, The Third Military Medical University, Chongqing 400038, China; Chongqing Key Laboratory for Disease Proteomics, Chongqing 400038, China.
| | - Jun Wu
- Institute of Burn Research, State Key Laboratory of Trauma, Burn and Combined Injury, Southwest Hospital, The Third Military Medical University, Chongqing 400038, China; Chongqing Key Laboratory for Disease Proteomics, Chongqing 400038, China.
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Li SH, Yang HL, Xiao H, Wang YB, Wang DC, Huo R. Inflammation and cutaneous nervous system involvement in hypertrophic scarring. Neural Regen Res 2015; 10:1678-82. [PMID: 26692869 PMCID: PMC4660765 DOI: 10.4103/1673-5374.167769] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Abstract
This study aimed to use a mouse model of hypertrophic scarring by mechanical loading on the dorsum of mice to determine whether the nervous system of the skin and inflammation participates in hypertrophic scarring. Results of hematoxylin-eosin and immunohistochemical staining demonstrated that inflammation contributed to the formation of a hypertrophic scar and increased the nerve density in scar tissue.Western blot assay verified that interleukin-13 expression was increased in scar tissue. These findings suggest that inflammation and the cutaneous nervous system play a role in hypertrophic scar formation.
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Affiliation(s)
- Shao-Hua Li
- Shandong Provincial Hospital Affiliated to Shandong University, Jinan, Shandong Province, China
| | - Heng-Lian Yang
- Jinan Fire Protection Hospital, Jinan, Shandong Province, China
| | - Hu Xiao
- Shandong Provincial Hospital Affiliated to Shandong University, Jinan, Shandong Province, China
| | - Yi-Bing Wang
- Shandong Provincial Hospital Affiliated to Shandong University, Jinan, Shandong Province, China
| | - De-Chang Wang
- Shandong Provincial Hospital Affiliated to Shandong University, Jinan, Shandong Province, China
| | - Ran Huo
- Shandong Provincial Hospital Affiliated to Shandong University, Jinan, Shandong Province, China
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P311 promotes renal fibrosis via TGFβ1/Smad signaling. Sci Rep 2015; 5:17032. [PMID: 26616407 PMCID: PMC4663757 DOI: 10.1038/srep17032] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2015] [Accepted: 10/07/2015] [Indexed: 12/26/2022] Open
Abstract
P311, a gene that was identified in 1993, has been found to have diverse biological functions in processes such as cell proliferation, migration and differentiation. However, its role in fibrosis is unknown. We previously observed that P311 is highly expressed in skin hypertrophic scars. In this study, P311 over-expression was detected in a subset of tubular epithelial cells in clinical biopsy specimens of renal fibrosis; this over-expression, was found concurrent with α-smooth muscle actin (α-SMA) and transforming growth factor beta1 (TGFβ1) expression. Subsequently, these results were verified in a mouse experimental renal fibrosis model induced by unilateral ureteral obstruction. The interstitial deposition of collagen, α-SMA and TGF-β1 expression, and macrophage infiltration were dramatically decreased when P311 was knocked out. Moreover, TGFβ/Smad signaling had a critical effect on the promotion of renal fibrosis by P311. In conclusion, this study demonstrate that P311 plays a key role in renal fibrosis via TGFβ1/Smad signaling, which could be a novel target for the management of renal fibrosis.
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34
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Kim H, Kim JH, Kim SY, Jo D, Park HJ, Kim J, Jung S, Kim HS, Lee K. Meta-Analysis of Large-Scale Toxicogenomic Data Finds Neuronal Regeneration Related Protein and Cathepsin D to Be Novel Biomarkers of Drug-Induced Toxicity. PLoS One 2015; 10:e0136698. [PMID: 26335687 PMCID: PMC4559398 DOI: 10.1371/journal.pone.0136698] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2015] [Accepted: 08/05/2015] [Indexed: 11/19/2022] Open
Abstract
Undesirable toxicity is one of the main reasons for withdrawing drugs from the market or eliminating them as candidates in clinical trials. Although numerous studies have attempted to identify biomarkers capable of predicting pharmacotoxicity, few have attempted to discover robust biomarkers that are coherent across various species and experimental settings. To identify such biomarkers, we conducted meta-analyses of massive gene expression profiles for 6,567 in vivo rat samples and 453 compounds. After applying rigorous feature reduction procedures, our analyses identified 18 genes to be related with toxicity upon comparisons of untreated versus treated and innocuous versus toxic specimens of kidney, liver and heart tissue. We then independently validated these genes in human cell lines. In doing so, we found several of these genes to be coherently regulated in both in vivo rat specimens and in human cell lines. Specifically, mRNA expression of neuronal regeneration-related protein was robustly down-regulated in both liver and kidney cells, while mRNA expression of cathepsin D was commonly up-regulated in liver cells after exposure to toxic concentrations of chemical compounds. Use of these novel toxicity biomarkers may enhance the efficiency of screening for safe lead compounds in early-phase drug development prior to animal testing.
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Affiliation(s)
- Hyosil Kim
- Department of Biomedical Informatics, Ajou University School of Medicine, Suwon, Korea
- Severance Biomedical Science Institute, Yonsei University College of Medicine, Seoul, Korea
| | - Ju-Hwa Kim
- Severance Biomedical Science Institute, Yonsei University College of Medicine, Seoul, Korea
| | - So Youn Kim
- Department of Biomedical Informatics, Ajou University School of Medicine, Suwon, Korea
| | - Deokyeon Jo
- Department of Biomedical Informatics, Ajou University School of Medicine, Suwon, Korea
| | - Ho Jun Park
- Department of Biomedical Informatics, Ajou University School of Medicine, Suwon, Korea
| | - Jihyun Kim
- Department of Biomedical Informatics, Ajou University School of Medicine, Suwon, Korea
| | - Sungwon Jung
- Department of Genome Medicine and Science, School of Medicine, Gachon University, Incheon, Korea
- * E-mail: (HSK); (SJ)
| | - Hyun Seok Kim
- Severance Biomedical Science Institute, Yonsei University College of Medicine, Seoul, Korea
- Brain Korea 21 PLUS Project for Medical Science, Yonsei University College of Medicine, Seoul, Korea
- * E-mail: (HSK); (SJ)
| | - KiYoung Lee
- Department of Biomedical Informatics, Ajou University School of Medicine, Suwon, Korea
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Guimarães EL, Stradiot L, Mannaerts I, Schroyen B, van Grunsven LA. P311 modulates hepatic stellate cells migration. Liver Int 2015; 35:1253-64. [PMID: 25243526 DOI: 10.1111/liv.12691] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/01/2013] [Accepted: 09/05/2014] [Indexed: 02/13/2023]
Abstract
BACKGROUND & AIMS Liver fibrosis is induced by the accumulation of extracellular matrix, deposited mainly by activated hepatic stellate cells (HSCs). One key characteristic of stellate cell activation is the directional migration to the site of injury during the wound-healing process. P311 is a protein that has been shown to play a role in migration and we aimed to study a possible role for this protein during stellate cell migration. METHODS Mouse stellate cells were isolated and cultured in vitro to investigate P311 protein and gene expression during HSC activation by immunocytochemistry and RT-qPCR respectively. Expression of P311 during in vivo activation was evaluated in CCl4 and bile duct ligation-induced liver fibrosis. Production of reactive oxygen species was determined using the fluorescent probe DCFH-DA. By siRNA-mediated knockdown of P311, we investigated a possible effect on proliferation by incorporation of EdU and on migration by Boyden chamber assays. RESULTS P311 gene expression was increased during both in vitro and in vivo activation of HSCs. siRNA-mediated knockdown led to a decrease in reactive oxygen production and cell proliferation. Migration induced by different chemokines, such as PDGF-bb and MCP-1 was inhibited by knockdown of P311. CONCLUSIONS P311 is central to reactive oxygen species-mediated HSC migration induced by different chemokines.
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Affiliation(s)
- Eduardo L Guimarães
- Liver Cell Biology Lab, Vrije Universiteit Brussel, Laarbeeklaan 103, Brussels, 1090, Belgium
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36
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Yang SS, Tan JL, Liu DS, Loreni F, Peng X, Yang QQ, He WF, Yao ZH, Zhang XR, Dal Prà I, Luo GX, Wu J. eIF6 modulates myofibroblast differentiation at TGF-β1 transcription level via H2A.Z occupancy and Sp1 recruitment. J Cell Sci 2015; 128:3977-89. [PMID: 26395397 DOI: 10.1242/jcs.174870] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2015] [Accepted: 09/13/2015] [Indexed: 12/20/2022] Open
Abstract
Eukaryotic initiation factor 6 (eIF6) is a pivotal regulator of ribosomal function, participating in translational control. Previously our data suggest that eIF6 acts as a key binding protein of P311 (a hypertrophic scar-related protein). However, a comprehensive investigation of its functional role and the underlying mechanisms in modulation myofibroblast (a key effector of hypertrophic scar formation) differentiation remains unclear. Here, we identified that eIF6 is a novel regulator of the TGF-β1 expression at transcription level, which has a key role in myofibroblast differentiation. Mechanistically, this effect is associated with eIF6 altering the occupancy of the TGF-β1 promoter by H2A.Z and Sp1. Accordingly, modulation of eIF6 expression in myofibroblasts significantly affects their differentiation via the TGF-β/Smad signaling pathway, which was verified in vivo by the observation that heterozygote eIF6+/− mice exhibited enhanced TGF-β1 production coupled with increased α-SMA+ myofibroblasts after skin injury. Overall, our data reveal that a novel transcriptional regulatory mechanism of eIF6 that acts on facilitating Sp1 recruitment to TGF-β1 promoter via H2A.Z depletion and thus results in increased TGF-β1 transcription, which contributes to myofibroblast differentiation.
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Affiliation(s)
- Si-si Yang
- Institute of Burn Research, State Key Laboratory of Trauma, Burn and Combined Injury, Southwest Hospital, the Third Military Medical University, Chongqing 400038, China
- Chongqing Key Laboratory for Disease Proteomics, Chongqing 400038, China
| | - Jiang-lin Tan
- Institute of Burn Research, State Key Laboratory of Trauma, Burn and Combined Injury, Southwest Hospital, the Third Military Medical University, Chongqing 400038, China
- Chongqing Key Laboratory for Disease Proteomics, Chongqing 400038, China
| | - Dai-song Liu
- Institute of Burn Research, State Key Laboratory of Trauma, Burn and Combined Injury, Southwest Hospital, the Third Military Medical University, Chongqing 400038, China
- Chongqing Key Laboratory for Disease Proteomics, Chongqing 400038, China
| | - Fabrizio Loreni
- Department of Biology, University ‘Tor Vergata’, Via Ricerca Scientifica, Roma 00133, Italy
| | - Xu Peng
- Institute of Burn Research, State Key Laboratory of Trauma, Burn and Combined Injury, Southwest Hospital, the Third Military Medical University, Chongqing 400038, China
| | - Qing-qing Yang
- Institute of Burn Research, State Key Laboratory of Trauma, Burn and Combined Injury, Southwest Hospital, the Third Military Medical University, Chongqing 400038, China
| | - Wei-feng He
- Institute of Burn Research, State Key Laboratory of Trauma, Burn and Combined Injury, Southwest Hospital, the Third Military Medical University, Chongqing 400038, China
- Chongqing Key Laboratory for Disease Proteomics, Chongqing 400038, China
| | - Zhi-hui Yao
- Institute of Burn Research, State Key Laboratory of Trauma, Burn and Combined Injury, Southwest Hospital, the Third Military Medical University, Chongqing 400038, China
| | - Xiao-rong Zhang
- Institute of Burn Research, State Key Laboratory of Trauma, Burn and Combined Injury, Southwest Hospital, the Third Military Medical University, Chongqing 400038, China
| | - Ilaria Dal Prà
- Histology and Embryology Section, Department of Life and Reproduction Sciences, University of Verona Medical School, Verona, Venetia, Italy
| | - Gao-xing Luo
- Institute of Burn Research, State Key Laboratory of Trauma, Burn and Combined Injury, Southwest Hospital, the Third Military Medical University, Chongqing 400038, China
- Chongqing Key Laboratory for Disease Proteomics, Chongqing 400038, China
| | - Jun Wu
- Institute of Burn Research, State Key Laboratory of Trauma, Burn and Combined Injury, Southwest Hospital, the Third Military Medical University, Chongqing 400038, China
- Chongqing Key Laboratory for Disease Proteomics, Chongqing 400038, China
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Yue MM, Lv K, Meredith SC, Martindale JL, Gorospe M, Schuger L. Novel RNA-binding protein P311 binds eukaryotic translation initiation factor 3 subunit b (eIF3b) to promote translation of transforming growth factor β1-3 (TGF-β1-3). J Biol Chem 2014; 289:33971-83. [PMID: 25336651 DOI: 10.1074/jbc.m114.609495] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
P311, a conserved 8-kDa intracellular protein expressed in brain, smooth muscle, regenerating tissues, and malignant glioblastomas, represents the first documented stimulator of TGF-β1-3 translation in vitro and in vivo. Here we initiated efforts to define the mechanism underlying P311 function. PONDR® (Predictor Of Naturally Disordered Regions) analysis suggested and CD confirmed that P311 is an intrinsically disordered protein, therefore requiring an interacting partner to acquire tertiary structure and function. Immunoprecipitation coupled with mass spectroscopy identified eIF3 subunit b (eIF3b) as a novel P311 binding partner. Immunohistochemical colocalization, GST pulldown, and surface plasmon resonance studies revealed that P311-eIF3b interaction is direct and has a Kd of 1.26 μm. Binding sites were mapped to the non-canonical RNA recognition motif of eIF3b and a central 11-amino acid-long region of P311, here referred to as eIF3b binding motif. Disruption of P311-eIF3b binding inhibited translation of TGF-β1, 2, and 3, as indicated by luciferase reporter assays, polysome fractionation studies, and Western blot analysis. RNA precipitation assays after UV cross-linking and RNA-protein EMSA demonstrated that P311 binds directly to TGF-β 5'UTRs mRNAs through a previously unidentified RNA recognition motif-like motif. Our results demonstrate that P311 is a novel RNA-binding protein that, by interacting with TGF-βs 5'UTRs and eIF3b, stimulates the translation of TGF-β1, 2, and 3.
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Affiliation(s)
| | | | - Stephen C Meredith
- From the Departments of Pathology and Biochemistry and Molecular Biology, The University of Chicago, Chicago, Illinois 60637 and
| | - Jennifer L Martindale
- the Laboratory of Genetics, NIA, National Institutes of Health, Baltimore, Maryland 21224
| | - Myriam Gorospe
- the Laboratory of Genetics, NIA, National Institutes of Health, Baltimore, Maryland 21224
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Xiao H, Wang D, Huo R, Wang Y, Feng Y, Li Q. Mechanical tension promotes skin nerve regeneration by upregulating nerve growth factor expression. Neural Regen Res 2014; 8:1576-81. [PMID: 25206453 PMCID: PMC4145962 DOI: 10.3969/j.issn.1673-5374.2013.17.005] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2012] [Accepted: 03/06/2013] [Indexed: 11/18/2022] Open
Abstract
This study aimed to explore the role of mechanical tension in hypertrophic scars and the change in nerve density using hematoxylin-eosin staining and S100 immunohistochemistry, and to observe the expression of nerve growth factor by western blot analysis. The results demonstrated that mechanical tension contributed to the formation of a hyperplastic scar in the back skin of rats, in conjunction with increases in both nerve density and nerve growth factor expression in the scar tissue. These experimental findings indicate that the cutaneous nervous system plays a role in hypertrophic scar formation caused by mechanical tension.
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Affiliation(s)
- Hu Xiao
- Department of Burn and Plastic Surgery, Shandong Provincial Hospital Affiliated to Shandong University, Jinan 250021, Shandong Province, China
| | - Dechang Wang
- Department of Burn and Plastic Surgery, Shandong Provincial Hospital Affiliated to Shandong University, Jinan 250021, Shandong Province, China
| | - Ran Huo
- Department of Burn and Plastic Surgery, Shandong Provincial Hospital Affiliated to Shandong University, Jinan 250021, Shandong Province, China
| | - Yibing Wang
- Department of Burn and Plastic Surgery, Shandong Provincial Hospital Affiliated to Shandong University, Jinan 250021, Shandong Province, China
| | - Yongqiang Feng
- Department of Burn and Plastic Surgery, Shandong Provincial Hospital Affiliated to Shandong University, Jinan 250021, Shandong Province, China
| | - Qiang Li
- Department of Burn and Plastic Surgery, Shandong Provincial Hospital Affiliated to Shandong University, Jinan 250021, Shandong Province, China
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Studying the complex expression dependences between sets of coexpressed genes. BIOMED RESEARCH INTERNATIONAL 2014; 2014:940821. [PMID: 25147825 PMCID: PMC4132326 DOI: 10.1155/2014/940821] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/08/2014] [Revised: 06/13/2014] [Accepted: 07/06/2014] [Indexed: 11/18/2022]
Abstract
Organisms simplify the orchestration of gene expression by coregulating genes whose products function together in the cell. The use of clustering methods to obtain sets of coexpressed genes from expression arrays is very common; nevertheless there are no appropriate tools to study the expression networks among these sets of coexpressed genes. The aim of the developed tools is to allow studying the complex expression dependences that exist between sets of coexpressed genes. For this purpose, we start detecting the nonlinear expression relationships between pairs of genes, plus the coexpressed genes. Next, we form networks among sets of coexpressed genes that maintain nonlinear expression dependences between all of them. The expression relationship between the sets of coexpressed genes is defined by the expression relationship between the skeletons of these sets, where this skeleton represents the coexpressed genes with a well-defined nonlinear expression relationship with the skeleton of the other sets. As a result, we can study the nonlinear expression relationships between a target gene and other sets of coexpressed genes, or start the study from the skeleton of the sets, to study the complex relationships of activation and deactivation between the sets of coexpressed genes that carry out the different cellular processes present in the expression experiments.
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Dai F, Yang S, Zhang F, Shi D, Zhang Z, Wu J, Xu J. hTERT- and hCTLA4Ig-expressing human bone marrow-derived mesenchymal stem cells: in vitro and in vivo characterization and osteogenic differentiation. J Tissue Eng Regen Med 2014; 11:400-411. [PMID: 25047146 DOI: 10.1002/term.1924] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2013] [Revised: 02/21/2014] [Accepted: 04/25/2014] [Indexed: 01/01/2023]
Abstract
Multipotent mesenchymal stem cells (MSCs) are commonly used as seed cells in studies of tissue engineering and regenerative medicine but their clinical application is limited, due to insufficient numbers of autogeneic MSCs, immune rejection of allogeneic MSCs and replicative senescence. We constructed two gene expression vectors for transfection of the human telomerase reverse transcriptase (hTERT) and cytotoxic T lymphocyte-associated antigen 4-Ig (CTLA4Ig) genes into human bone marrow-derived stem cells (hBMSCs). Successful transfection of both genes generated hTERT-CTLA4Ig hBMSCs that expressed both telomerase (shown by immunohistochemistry and a TRAPeze assay) and CTLA4Ig (demonstrated by immunocytochemistry and western blotting) without apparent mutual interference. Both hTERT BMSCs (92 population doublings) and hTERT-CTLA4Ig hBMSCs (60 population doublings) had an extended lifespan compared with hBMSCs (18 population doublings). Cell cycle analysis revealed that, compared with hBMSCs, a lower proportion of hTERT hBMSCs were in G0 /G1 phase but a higher proportion were in S phase; compared with hTERT hBMSCs, a higher proportion of hTERT-CTLA4Ig hBMSCs were in G0 /G1 phase, while a lower proportion were in S and G2 /M phases. hTERT-CTLA4Ig hBMSCs retained their capacity for osteogenic differentiation in vitro, shown by the detection of hydroxyapatite mineral deposition (labelled tetracycline fluorescence staining), calcareous nodules (alizarin red S staining), alkaline phosphatase (calcium-cobalt method) and osteocalcin (immunocytochemistry). Furthermore, subcutaneous transplantation of hTERT-CTLA4Ig hBMSCs in a rat xenotransplantation model resulted in the successful generation of bone-like tissue, confirmed using radiography and histological assessment. We propose that allogeneic hTERT-CTLA4Ig hBMSCs may be ideal seed cells for bone tissue engineering. Copyright © 2014 John Wiley & Sons, Ltd.
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Affiliation(s)
- Fei Dai
- National and Regional United Engineering Laboratory of Tissue Engineering, Department of Orthopaedics, Southwest Hospital, Third Military Medical University, Chongqing, People's Republic of China
| | - Sisi Yang
- Institute of Burns Research, Southwest Hospital, Third Military Medical University, Chongqing, People's Republic of China
| | - Fei Zhang
- National and Regional United Engineering Laboratory of Tissue Engineering, Department of Orthopaedics, Southwest Hospital, Third Military Medical University, Chongqing, People's Republic of China
| | - Dongwen Shi
- Institute of Burns Research, Southwest Hospital, Third Military Medical University, Chongqing, People's Republic of China
| | - Zehua Zhang
- National and Regional United Engineering Laboratory of Tissue Engineering, Department of Orthopaedics, Southwest Hospital, Third Military Medical University, Chongqing, People's Republic of China
| | - Jun Wu
- Institute of Burns Research, Southwest Hospital, Third Military Medical University, Chongqing, People's Republic of China
| | - Jianzhong Xu
- National and Regional United Engineering Laboratory of Tissue Engineering, Department of Orthopaedics, Southwest Hospital, Third Military Medical University, Chongqing, People's Republic of China
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Zhang P, Li J, Tang X, Zhang J, Liang J, Zeng G. Dracorhodin perchlorate induces apoptosis in primary fibroblasts from human skin hypertrophic scars via participation of caspase-3. Eur J Pharmacol 2014; 728:82-92. [DOI: 10.1016/j.ejphar.2014.01.068] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2013] [Revised: 01/21/2014] [Accepted: 01/24/2014] [Indexed: 10/25/2022]
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Du QC, Zhang DZ, Chen XJ, Lan-Sun G, Wu M, Xiao WL. The effect of p38MAPK on cyclic stretch in human facial hypertrophic scar fibroblast differentiation. PLoS One 2013; 8:e75635. [PMID: 24130728 PMCID: PMC3794006 DOI: 10.1371/journal.pone.0075635] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2012] [Accepted: 08/17/2013] [Indexed: 02/06/2023] Open
Abstract
Hypertrophic scars (HTS), the excessive deposition of scar tissue by fibroblasts, is one of the most common skin disorders. Fibroblasts derived from surgical scar tissue produce high levels of α-smooth muscle actin (α-SMA) and transforming growth factor-β1 (TGF-β1). However, the molecular mechanisms for this phenomenon is poorly understood. Thus, the purpose of this study was to evaluate the molecular mechanisms of HTS and their potential therapeutic implications. Fibroblasts derived from skin HTS were cultured and characterized in vitro. The fibroblasts were synchronized and randomly assigned to two groups: cyclic stretch and cyclic stretch pre-treated with SB203580 (a p38MAPK inhibitor). Cyclic stretch at 10% strain was applied at a loading frequency of 10 cycles per minute (i.e. 5 seconds of tension and 5 seconds of relaxation) for 0 h, 6 h and 12 h. Cyclic stretch on HTS fibroblasts led to an increase in the expression of α-SMA and TGF-β1 mRNA and protein and the phosphorylation of p38MAPK. SB203580 reversed these effects and caused a decrease in matrix contraction. Furthermore, HTS fibroblast growth was partially blocked by p38MAPK inhibition. Therefore, the mechanism of cyclic stretch involves p38 MAPK, and its inhibition is suggested as a novel therapeutic strategy for HTS.
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Affiliation(s)
- Qi-cui Du
- Department of Stomatology, The Affiliated Hospital of Medical College, Qingdao University, Qingdao, the People's Republic of China
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Badri KR, Yue M, Carretero OA, Aramgam SL, Cao J, Sharkady S, Kim GH, Taylor GA, Byron KL, Schuger L. Blood pressure homeostasis is maintained by a P311-TGF-β axis. J Clin Invest 2013; 123:4502-12. [PMID: 24091331 DOI: 10.1172/jci69884] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2013] [Accepted: 07/18/2013] [Indexed: 12/22/2022] Open
Abstract
P311 is an 8-kDa intracellular protein that is highly conserved across species and is expressed in the nervous system as well as in vascular and visceral smooth muscle cells. P311-null (P311-/-) mice display learning and memory defects, but alterations in their vasculature have not been previously described. Here we report that P311-/- mice are markedly hypotensive with accompanying defects in vascular tone and VSMC contractility. Functional abnormalities in P311-/- mice resulted from decreased total and active levels of TGF-β1, TGF-β2, and TGF-β3 that arise as a specific consequence of decreased translation. Vascular hypofunctionality was fully rescued in vitro and in vivo by exogenous TGF-β1-TGF-β3. Conversely, P311-transgenic (P311(TG)) mice had elevated levels of TGF-β1-TGF-β3 and subsequent hypertension. Consistent with findings attained in mouse models, arteries recovered from hypertensive human patients displayed increased P311 expression. Thus, we identified P311 as the first protein known to modulate TGF-β translation and the first pan-regulator of TGF-β expression under steady-state conditions. Together, our findings point to P311 as a critical blood pressure regulator and establish a potential link between P311 expression and the development of hypertensive disease.
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MESH Headings
- Animals
- Aorta/pathology
- Aorta/physiopathology
- Aortography
- Blood Pressure
- Cells, Cultured
- Female
- Gene Expression
- Gene Expression Regulation
- Homeostasis
- Humans
- Hypotension/genetics
- Hypotension/metabolism
- Male
- Mice
- Mice, Inbred C57BL
- Mice, Knockout
- Muscle Contraction
- Muscle, Smooth, Vascular/pathology
- Muscle, Smooth, Vascular/physiopathology
- Myocytes, Smooth Muscle/metabolism
- Nerve Tissue Proteins/genetics
- Nerve Tissue Proteins/metabolism
- RNA, Messenger/genetics
- RNA, Messenger/metabolism
- Transforming Growth Factor beta/genetics
- Transforming Growth Factor beta/metabolism
- Transforming Growth Factor beta/physiology
- Up-Regulation
- rho GTP-Binding Proteins/metabolism
- rhoA GTP-Binding Protein
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Snoek BC, Wilt LHAMD, Jansen G, Peters GJ. Role of E3 ubiquitin ligases in lung cancer. World J Clin Oncol 2013; 4:58-69. [PMID: 23936758 PMCID: PMC3708064 DOI: 10.5306/wjco.v4.i3.58] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/03/2012] [Revised: 01/10/2013] [Accepted: 06/06/2013] [Indexed: 02/06/2023] Open
Abstract
E3 ubiquitin ligases are a large family of proteins that catalyze the ubiquitination of many protein substrates for targeted degradation by the 26S proteasome. Therefore, E3 ubiquitin ligases play an essential role in a variety of biological processes including cell cycle regulation, proliferation and apoptosis. E3 ubiquitin ligases are often found overexpressed in human cancers, including lung cancer, and their deregulation has been shown to contribute to cancer development. However, the lack of specific inhibitors in clinical trials is a major issue in targeting E3 ubiquitin ligases with currently only one E3 ubiquitin ligase inhibitor being tested in the clinical setting. In this review, we focus on E3 ubiquitin ligases that have been found deregulated in lung cancer. Furthermore, we discuss the processes in which they are involved and evaluate them as potential anti-cancer targets. By better understanding the mechanisms by which E3 ubiquitin ligases regulate biological processes and their exact role in carcinogenesis, we can improve the development of specific E3 ubiquitin ligase inhibitors and pave the way for novel treatment strategies for cancer patients.
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Golberg A, Bei M, Sheridan RL, Yarmush ML. Regeneration and control of human fibroblast cell density by intermittently delivered pulsed electric fields. Biotechnol Bioeng 2013; 110:1759-68. [DOI: 10.1002/bit.24831] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2012] [Revised: 12/20/2012] [Accepted: 12/21/2012] [Indexed: 12/20/2022]
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Golberg A, Bei M, Sheridan RL, Yarmush ML. Regeneration and control of human fibroblast cell density by intermittently delivered pulsed electric fields. Biotechnol Bioeng 2013. [DOI: 10.1002/bit.24832] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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Curative effects of oleanolic Acid on formed hypertrophic scars in the rabbit ear model. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE 2012; 2012:837581. [PMID: 23326292 PMCID: PMC3544331 DOI: 10.1155/2012/837581] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/09/2012] [Revised: 12/11/2012] [Accepted: 12/11/2012] [Indexed: 12/29/2022]
Abstract
Hypertrophic scarring is a common proliferative disorder of dermal fibroblasts characterized by collagen overproduction and excessive deposition of extracellular matrix (ECM). There is no consensus about the best therapeutics to produce complete and permanent improvement of scars with few side effects. To investigate the therapeutic effects of oleanolic acid (OA) on hypertrophic scars and explore the possible mechanism of action involved, a rabbit ear model with hypertrophic scars was established. OA (2.5%, 5%, and 10%) was given once daily to the scars for 28 consecutive days. As a result, OA significantly alleviated formed hypertrophic scars on rabbit ears. The levels of TGF-β1, MMP-1, TIMP-1, and collagens I and III were notably decreased, and the number of apoptosis cells and mRNA expression of MMP-2, caspase-3, and caspase-9 were markedly increased in the scar tissue. The scar elevation index (SEI) was also evidently reduced. Histological findings exhibited significant amelioration of the collagen tissue. These results suggest that OA has the favorable curative effects on formed hypertrophic scars in the rabbit ear model, and the possible mechanism of action is that OA decreases HSFs proliferation and increases HSFs apoptosis by reduction of P311 gene expression and TGF-β1 production, inhibition of TIMP-1 secretion, enhancement of MMP-2 activity, and subsequently facilitation of degradation of collagen types I and III.
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Goldsmith EC, Bradshaw AD, Spinale FG. Cellular mechanisms of tissue fibrosis. 2. Contributory pathways leading to myocardial fibrosis: moving beyond collagen expression. Am J Physiol Cell Physiol 2012; 304:C393-402. [PMID: 23174564 DOI: 10.1152/ajpcell.00347.2012] [Citation(s) in RCA: 82] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Abstract
While the term "fibrosis" can be misleading in terms of the complex patterns and processes of myocardial extracellular matrix (ECM) remodeling, fibrillar collagen accumulation is a common consequence of relevant pathophysiological stimuli, such as pressure overload (PO) and myocardial infarction (MI). Fibrillar collagen accumulation in both PO and MI is predicated on a number of diverse cellular and extracellular events, which include changes in fibroblast phenotype (transdifferentiation), posttranslational processing and assembly, and finally, degradation. The expansion of a population of transformed fibroblasts/myofibroblasts is a significant cellular event with respect to ECM remodeling in both PO and MI. The concept that this cellular expansion within the myocardial ECM may be due, at least in part, to endothelial-mesenchymal transformation and thereby not dissimilar to events observed in cancer progression holds intriguing future possibilities. Studies regarding determinants of procollagen processing, such as procollagen C-endopeptidase enhancer (PCOLCE), and collagen assembly, such as the secreted protein acidic and rich in cysteine (SPARC), have identified potential new targets for modifying the fibrotic response in both PO and MI. Finally, the transmembrane matrix metalloproteinases, such as MMP-14, underscore the diversity and complexity of this ECM proteolytic family as this protease can degrade the ECM as well as induce a profibrotic response. The growing recognition that the myocardial ECM is a dynamic entity containing a diversity of matricellular and nonstructural proteins as well as proteases and that the fibrillar collagens can change in structure and content in a rapid temporal fashion has opened up new avenues for modulating what was once considered an irreversible event--myocardial fibrosis.
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Affiliation(s)
- Edie C Goldsmith
- Department of Cell Biology and Anatomy, University of South Carolina School of Medicine, Columbia, South Carolina 29208, USA
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Peng X, Yuan S, Tan J, Ma B, Bian X, Xu C, He W, Cao H, Huang Z, Cui Y, Gan C, Wang X, Zhou J, Hu J, Yang S, Luo G, Wu J. Identification of ITGB4BP as a new interaction protein of P311. Life Sci 2012; 90:585-90. [DOI: 10.1016/j.lfs.2012.02.008] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2011] [Revised: 12/21/2011] [Accepted: 02/02/2012] [Indexed: 11/30/2022]
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Hinz B, Phan SH, Thannickal VJ, Prunotto M, Desmoulière A, Varga J, De Wever O, Mareel M, Gabbiani G. Recent developments in myofibroblast biology: paradigms for connective tissue remodeling. THE AMERICAN JOURNAL OF PATHOLOGY 2012; 180:1340-55. [PMID: 22387320 DOI: 10.1016/j.ajpath.2012.02.004] [Citation(s) in RCA: 939] [Impact Index Per Article: 78.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 01/19/2012] [Indexed: 02/07/2023]
Abstract
The discovery of the myofibroblast has opened new perspectives for the comprehension of the biological mechanisms involved in wound healing and fibrotic diseases. In recent years, many advances have been made in understanding important aspects of myofibroblast basic biological characteristics. This review summarizes such advances in several fields, such as the following: i) force production by the myofibroblast and mechanisms of connective tissue remodeling; ii) factors controlling the expression of α-smooth muscle actin, the most used marker of myofibroblastic phenotype and, more important, involved in force generation by the myofibroblast; and iii) factors affecting genesis of the myofibroblast and its differentiation from precursor cells, in particular epigenetic factors, such as DNA methylation, microRNAs, and histone modification. We also review the origin and the specific features of the myofibroblast in diverse fibrotic lesions, such as systemic sclerosis; kidney, liver, and lung fibrosis; and the stromal reaction to certain epithelial tumors. Finally, we summarize the emerging strategies for influencing myofibroblast behavior in vitro and in vivo, with the ultimate goal of an effective therapeutic approach for myofibroblast-dependent diseases.
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Affiliation(s)
- Boris Hinz
- Laboratory of Tissue Repair and Regeneration, Matrix Dynamics Group, Faculty of Dentistry, University of Toronto, Toronto, Ontario, Canada.
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