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Vu TL, Nguyen TKO, Song JA, Chong S, Choe H. Enhanced prokaryotic expression, purification, and biological activities of human keratinocyte growth factor. J Biotechnol 2024; 386:42-51. [PMID: 38552676 DOI: 10.1016/j.jbiotec.2024.03.010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2023] [Revised: 03/19/2024] [Accepted: 03/24/2024] [Indexed: 04/04/2024]
Abstract
Keratinocyte growth factor (KGF), also known as fibroblast growth factor 7 (FGF7), plays a critical role in embryonic development, cell proliferation, and differentiation. However, efficient production of recombinant KGF remains a challenge due to its low expression levels and high tendency for aggregation in Escherichia coli. This study aimed to enhance the expression and solubility of KGF by employing different protein tags-PDIb'a', MBP, and His-fused to the N-terminus of KGF. Among these, H-PDIb'a'-KGF demonstrated superior stability and was selected for large-scale production and purification. The purified KGF was confirmed through liquid chromatography with tandem mass spectrometry analysis, which showed an 81% fragment mass identification coverage. Biological activity assessments using human breast cancer MCF-7 cells indicated that purified KGF significantly increased cell proliferation, with an EC50 of 6.4 ± 0.5 pM. Interestingly, PDIb'a' alone also exhibited a stimulatory effect on MCF-7 cells. Furthermore, the purified KGF enhanced the wound healing of HaCaT keratinocytes in a dose-dependent manner. These findings provide valuable insights into the efficient production and functional characterization of recombinant KGF for potential applications in therapeutic interventions.
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Affiliation(s)
- Thi Luong Vu
- Department of Physiology, University of Ulsan College of Medicine, Asan Medical Center, Seoul 05505, South Korea
| | - Thi Kieu Oanh Nguyen
- Department of Physiology, University of Ulsan College of Medicine, Asan Medical Center, Seoul 05505, South Korea
| | - Jung-A Song
- Department of Physiology, University of Ulsan College of Medicine, Asan Medical Center, Seoul 05505, South Korea
| | - Seonha Chong
- Department of Physiology, University of Ulsan College of Medicine, Asan Medical Center, Seoul 05505, South Korea
| | - Han Choe
- Department of Physiology, University of Ulsan College of Medicine, Asan Medical Center, Seoul 05505, South Korea.
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Meng H, Liao Z, Ji Y, Wang D, Han Y, Huang C, Hu X, Chen J, Zhang H, Li Z, Wang C, Sun H, Sun J, Chen L, Yin J, Zhao J, Xu T, Liu H. FGF7 enhances the expression of ACE2 in human islet organoids aggravating SARS-CoV-2 infection. Signal Transduct Target Ther 2024; 9:104. [PMID: 38654010 DOI: 10.1038/s41392-024-01790-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2023] [Revised: 03/04/2024] [Accepted: 03/10/2024] [Indexed: 04/25/2024] Open
Abstract
The angiotensin-converting enzyme 2 (ACE2) is a primary cell surface viral binding receptor for SARS-CoV-2, so finding new regulatory molecules to modulate ACE2 expression levels is a promising strategy against COVID-19. In the current study, we utilized islet organoids derived from human embryonic stem cells (hESCs), animal models and COVID-19 patients to discover that fibroblast growth factor 7 (FGF7) enhances ACE2 expression within the islets, facilitating SARS-CoV-2 infection and resulting in impaired insulin secretion. Using hESC-derived islet organoids, we demonstrated that FGF7 interacts with FGF receptor 2 (FGFR2) and FGFR1 to upregulate ACE2 expression predominantly in β cells. This upregulation increases both insulin secretion and susceptibility of β cells to SARS-CoV-2 infection. Inhibiting FGFR counteracts the FGF7-induced ACE2 upregulation, subsequently reducing viral infection and replication in the islets. Furthermore, retrospective clinical data revealed that diabetic patients with severe COVID-19 symptoms exhibited elevated serum FGF7 levels compared to those with mild symptoms. Finally, animal experiments indicated that SARS-CoV-2 infection increased pancreatic FGF7 levels, resulting in a reduction of insulin concentrations in situ. Taken together, our research offers a potential regulatory strategy for ACE2 by controlling FGF7, thereby protecting islets from SARS-CoV-2 infection and preventing the progression of diabetes in the context of COVID-19.
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Affiliation(s)
- Hao Meng
- School of Biomedical Engineering, Guangzhou Medical University, Guangzhou, 511495, Guangdong, China
- Guangzhou National Laboratory, Guangzhou, 510320, Guangdong, China
| | - Zhiying Liao
- School of Biomedical Engineering, Guangzhou Medical University, Guangzhou, 511495, Guangdong, China
- Guangzhou National Laboratory, Guangzhou, 510320, Guangdong, China
| | - Yanting Ji
- Guangzhou National Laboratory, Guangzhou, 510320, Guangdong, China
| | - Dong Wang
- State Key Laboratory of Respiratory Disease, National Clinical Research Center for Respiratory Disease, Guangzhou Institute of Respiratory Health, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, 510120, China
| | - Yang Han
- Center for Translational Medicine, Wuhan Jinyintan Hospital, Wuhan, 430023, Hubei, China
| | - Chaolin Huang
- Center for Translational Medicine, Wuhan Jinyintan Hospital, Wuhan, 430023, Hubei, China
| | - Xujuan Hu
- Center for Translational Medicine, Wuhan Jinyintan Hospital, Wuhan, 430023, Hubei, China
| | - Jingyi Chen
- Guangzhou National Laboratory, Guangzhou, 510320, Guangdong, China
- School of Biomedical Sciences and Engineering, South China University of Technology, Guangzhou, 510006, Guangdong, China
| | - Hengrui Zhang
- Guangzhou National Laboratory, Guangzhou, 510320, Guangdong, China
| | - Zonghong Li
- Guangzhou National Laboratory, Guangzhou, 510320, Guangdong, China
| | - Changliang Wang
- Guangzhou National Laboratory, Guangzhou, 510320, Guangdong, China
| | - Hui Sun
- Guangzhou National Laboratory, Guangzhou, 510320, Guangdong, China
| | - Jiaqi Sun
- Guangzhou National Laboratory, Guangzhou, 510320, Guangdong, China
| | - Lihua Chen
- Guangzhou National Laboratory, Guangzhou, 510320, Guangdong, China
| | - Jiaxiang Yin
- Guangzhou National Laboratory, Guangzhou, 510320, Guangdong, China
| | - Jincun Zhao
- Guangzhou National Laboratory, Guangzhou, 510320, Guangdong, China.
- State Key Laboratory of Respiratory Disease, National Clinical Research Center for Respiratory Disease, Guangzhou Institute of Respiratory Health, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, 510120, China.
| | - Tao Xu
- School of Biomedical Engineering, Guangzhou Medical University, Guangzhou, 511495, Guangdong, China.
- Guangzhou National Laboratory, Guangzhou, 510320, Guangdong, China.
| | - Huisheng Liu
- School of Biomedical Engineering, Guangzhou Medical University, Guangzhou, 511495, Guangdong, China.
- Guangzhou National Laboratory, Guangzhou, 510320, Guangdong, China.
- School of Biomedical Sciences and Engineering, South China University of Technology, Guangzhou, 510006, Guangdong, China.
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王 蕊, 安 可, 谢 静, 邹 淑. [Role of Fibroblast Growth Factor 7 in Craniomaxillofacial Development]. Sichuan Da Xue Xue Bao Yi Xue Ban 2024; 55:469-474. [PMID: 38645865 PMCID: PMC11026893 DOI: 10.12182/20240360505] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/17/2023] [Indexed: 04/23/2024]
Abstract
Craniomaxillofacial development involves a series of highly ordered temporal-spatial cellular differentiation processes in which a variety of cell signaling factors, such as fibroblast growth factors, play important regulatory roles. As a classic fibroblast growth factor, fibroblast growth factor 7 (FGF7) serves a wide range of regulatory functions. Previous studies have demonstrated that FGF7 regulates the proliferation and migration of epithelial cells, protects them, and promotes their repair. Furthermore, recent findings indicate that epithelial cells are not the only ones subjected to the broad and powerful regulatory capacity of FGF7. It has potential effects on skeletal system development as well. In addition, FGF7 plays an important role in the development of craniomaxillofacial organs, such as the palate, the eyes, and the teeth. Nonetheless, the role of FGF7 in oral craniomaxillofacial development needs to be further elucidated. In this paper, we summarized the published research on the role of FGF7 in oral craniomaxillofacial development to demonstrate the overall understanding of FGF7 and its potential functions in oral craniomaxillofacial development.
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Affiliation(s)
- 蕊欣 王
- 口腔疾病研究国家重点实验室 国家口腔疾病临床医学研究中心 四川大学华西口腔医院 (成都 610041)State Key Laboratory of Oral Diseases and National Clinical Research Center for Oral Diseases and West China Hospital of Stomatology, Sichuan University, Chengdu 610041, China
| | - 可 安
- 口腔疾病研究国家重点实验室 国家口腔疾病临床医学研究中心 四川大学华西口腔医院 (成都 610041)State Key Laboratory of Oral Diseases and National Clinical Research Center for Oral Diseases and West China Hospital of Stomatology, Sichuan University, Chengdu 610041, China
| | - 静 谢
- 口腔疾病研究国家重点实验室 国家口腔疾病临床医学研究中心 四川大学华西口腔医院 (成都 610041)State Key Laboratory of Oral Diseases and National Clinical Research Center for Oral Diseases and West China Hospital of Stomatology, Sichuan University, Chengdu 610041, China
| | - 淑娟 邹
- 口腔疾病研究国家重点实验室 国家口腔疾病临床医学研究中心 四川大学华西口腔医院 (成都 610041)State Key Laboratory of Oral Diseases and National Clinical Research Center for Oral Diseases and West China Hospital of Stomatology, Sichuan University, Chengdu 610041, China
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Tian Y, Deng Q, Yang X, Wang C, Minh Le V, Ji R, Liang X, Feng Y. ISX-9 Promotes KGF Secretion From MSCs to Alleviate ALI Through NGFR-ERK-TAU-β-Catenin Signaling Axis. Stem Cells Transl Med 2024; 13:255-267. [PMID: 38159248 PMCID: PMC10940818 DOI: 10.1093/stcltm/szad085] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2023] [Accepted: 11/02/2023] [Indexed: 01/03/2024] Open
Abstract
BACKGROUND Mesenchymal stem cells (MSCs) have been widely studied to alleviate acute lung injury (ALI) due to their paracrine function. However, the microenvironment of inflammatory outbreaks significantly restricted the factors secreted from MSCs like keratinocyte growth factor (KGF). KGF is a growth factor with tissue-repaired ability. Is there a better therapeutic prospect for MSCs in combination with compounds that promote their paracrine function? Through compound screening, we screened out isoxazole-9 (ISX-9) to promote MSCs derived KGF secretion and investigated the underlying mechanisms of action. METHODS Compounds that promote KGF secretion were screened by a dual-luciferase reporter gene assay. The TMT isotope labeling quantitative technique was used to detect the differential proteins upon ISX-9 administrated to MSCs. The expressions of NGFR, ERK, TAU, and β-catenin were detected by Western blot. In the ALI model, we measured the inflammatory changes by HE staining, SOD content detection, RT-qPCR, immunofluorescence, etc. The influence of ISX-9 on the residence time of MSCs transplantation was explored by optical in vivo imaging. RESULTS We found out that ISX-9 can promote the expression of KGF in MSCs. ISX-9 acted on the membrane receptor protein NGFR, upregulated phosphorylation of downstream signaling proteins ERK and TAU, downregulated phosphorylation of β-catenin, and accelerated β-catenin into the nucleus to further increase the expression of KGF. In the ALI model, combined ISX-9 with MSCs treatments upgraded the expression of KGF in the lung, and enhanced the effect of MSCs in reducing inflammation and repairing lung damage compared with MSCs alone. CONCLUSIONS ISX-9 facilitated the secretion of KGF from MSCs both in vivo and in vitro. The combination of ISX-9 with MSCs enhanced the paracrine function and anti-inflammatory effect of MSCs compared with MSCs applied alone in ALI. ISX-9 played a contributive role in the transplantation of MSCs for the treatment of ALI.
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Affiliation(s)
- Yi Tian
- Department of Respiratory and Critical Care Medicine, Ruijin Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, People’s Republic of China
- Department of Stomatology, Shanghai East Hospital, Tongji University School of Medicine, Shanghai, People’s Republic of China
| | - Qinyi Deng
- State Key Laboratory of Bioreactor Engineering & Shanghai Key Laboratory of New Drug Design, School of Pharmacy, East China University of Science and Technology, Shanghai, People’s Republic of China
| | - Xiaotong Yang
- Department of Respiratory and Critical Care Medicine, Ruijin Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, People’s Republic of China
| | - Chen Wang
- Department of Respiratory and Critical Care Medicine, Ruijin Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, People’s Republic of China
| | - Van Minh Le
- Research Center of Ginseng and Medicinal Materials, National Institute of Medicinal Materials, Ho Chi Minh City, Vietnam
| | - Ri Ji
- Department of Ultrasound, Ruijin Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, People’s Republic of China
| | - Xin Liang
- State Key Laboratory of Bioreactor Engineering & Shanghai Key Laboratory of New Drug Design, School of Pharmacy, East China University of Science and Technology, Shanghai, People’s Republic of China
| | - Yun Feng
- Department of Respiratory and Critical Care Medicine, Ruijin Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, People’s Republic of China
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Feng S, Ding B, Dai Z, Yin H, Ding Y, Liu S, Zhang K, Lin H, Xiao Z, Shen Y. Cancer-associated fibroblast-secreted FGF7 as an ovarian cancer progression promoter. J Transl Med 2024; 22:280. [PMID: 38491511 PMCID: PMC10941588 DOI: 10.1186/s12967-024-05085-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2023] [Accepted: 03/10/2024] [Indexed: 03/18/2024] Open
Abstract
BACKGROUND Ovarian cancer (OC) is distinguished by its aggressive nature and the limited efficacy of current treatment strategies. Recent studies have emphasized the significant role of cancer-associated fibroblasts (CAFs) in OC development and progression. METHODS Employing sophisticated machine learning techniques on bulk transcriptomic datasets, we identified fibroblast growth factor 7 (FGF7), derived from CAFs, as a potential oncogenic factor. We investigated the relationship between FGF7 expression and various clinical parameters. A series of in vitro experiments were undertaken to evaluate the effect of CAFs-derived FGF7 on OC cell activities, such as proliferation, migration, and invasion. Single-cell transcriptomic analysis was also conducted to elucidate the interaction between FGF7 and its receptor. Detailed mechanistic investigations sought to clarify the pathways through which FGF7 fosters OC progression. RESULTS Our findings indicate that higher FGF7 levels correlate with advanced tumor stages, increased vascular invasion, and poorer prognosis. CAFs-derived FGF7 significantly enhanced OC cell proliferation, migration, and invasion. Single-cell analysis and in vitro studies revealed that CAFs-derived FGF7 inhibits the ubiquitination and degradation of hypoxia-inducible factor 1 alpha (HIF-1α) via FGFR2 interaction. Activation of the FGF7/HIF-1α pathway resulted in the upregulation of mesenchymal markers and downregulation of epithelial markers. Importantly, in vivo treatment with neutralizing antibodies targeting CAFs-derived FGF7 substantially reduced tumor growth. CONCLUSION Neutralizing FGF7 in the medium or inhibiting HIF-1α signaling reversed the effects of FGF7-mediated EMT, emphasizing the dependence of FGF7-mediated EMT on HIF-1α activation. These findings suggest that targeting the FGF7/HIF-1α/EMT axis may offer new therapeutic opportunities to intervene in OC progression.
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Affiliation(s)
- Songwei Feng
- Department of Obstetrics and Gynaecology, Zhongda Hospital, School of Medicine, Southeast University, Nanjing, China
| | - Bo Ding
- Department of Obstetrics and Gynaecology, Zhongda Hospital, School of Medicine, Southeast University, Nanjing, China
| | - Zhu Dai
- State Key Laboratory of Bioelectronics, School of Biological Science and Medical Engineering, Southeast University, Nanjing, China
| | - Han Yin
- Department of Obstetrics and Gynaecology, Zhongda Hospital, School of Medicine, Southeast University, Nanjing, China
| | - Yue Ding
- Department of Obstetrics and Gynaecology, Zhongda Hospital, School of Medicine, Southeast University, Nanjing, China
| | - Sicong Liu
- Department of Obstetrics and Gynaecology, Zhongda Hospital, School of Medicine, Southeast University, Nanjing, China
| | - Ke Zhang
- Department of Obstetrics and Gynaecology, Zhongda Hospital, School of Medicine, Southeast University, Nanjing, China
| | - Hao Lin
- Department of Clinical Science and Research, Zhongda Hospital, School of Medicine, Southeast University, Nanjing, China.
| | - Zhongdang Xiao
- State Key Laboratory of Bioelectronics, School of Biological Science and Medical Engineering, Southeast University, Nanjing, China.
| | - Yang Shen
- Department of Obstetrics and Gynaecology, Zhongda Hospital, School of Medicine, Southeast University, Nanjing, China.
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Chai N, Stachon T, Berger T, Li Z, Seitz B, Langenbucher A, Szentmáry N. Human corneal epithelial cell and fibroblast migration and growth factor secretion after rose bengal photodynamic therapy (RB-PDT) and the effect of conditioned medium. PLoS One 2023; 18:e0296022. [PMID: 38150488 PMCID: PMC10752507 DOI: 10.1371/journal.pone.0296022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2023] [Accepted: 12/04/2023] [Indexed: 12/29/2023] Open
Abstract
PURPOSE To investigate human corneal epithelial cell and fibroblast migration and growth factor secretion after rose bengal photodynamic therapy (RB-PDT) and the effect of conditioned medium (CM). METHODS A human corneal epithelial cell line (HCE-T), human corneal fibroblasts (HCF) and keratoconus fibroblasts (KC-HCF) have been used. Twenty-four hours after RB-PDT (0.001% RB concentration, 565 nm wavelength illumination, 0.17 J/cm2 fluence) cell migration rate using scratch assay and growth factor concentrations in the cell culture supernatant using ELISA have been determined. In addition, the effect of CM has been observed. RESULTS RB-PDT significantly reduced migration rate in all cell types, compared to controls (p≤0.02). Migration rate of HCE-T cultures without RB-PDT (untreated) was significantly higher using HCF CM after RB-PDT, than using HCF CM without RB-PDT (p<0.01). Similarly, untreated HCF displayed a significantly increased migration rate with HCE-T CM after RB-PDT, compared to HCE-T CM without treatment (p<0.01). Furthermore, illumination alone and RB-PDT significantly decreased keratinocyte growth factor (KGF) concentration in HCF and KC-HCF supernatant, and RB-PDT significantly decreased soluble N-Cadherin (SN-Cad) concentration in HCF supernatant, compared to controls (p<0.01 for all). In HCE-T CM, RB-PDT increased hepatocyte growth factor (HGF) and basic fibroblast growth factor (FGFb) concentration (p≤0.02), while decreasing transforming growth factor β (TGF-β) concentration (p<0.01). FGFb concentration increased (p<0.0001) and TGF-β concentration decreased (p<0.0001) in HCF CM, by RB-PDT. Epidermal growth factor (EGF), HGF, and TGF-β concentration decreased (p≤0.03) and FGFb concentration increased (p<0.01) in KC-HCF CM, using RB-PDT. CONCLUSIONS HCE-T, HCF and KC-HCF migration rate is reduced 24 hours after RB-PDT. In contrast, HCE-T migration is enhanced using HCF CM after RB-PDT, and HCF migration rate is increased through HCE-T CM following RB-PDT. Modulation of EGF, KGF, HGF, FGFb, TGF-β and N-Cadherin secretion through RB-PDT may play an important role in corneal wound healing.
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Affiliation(s)
- Ning Chai
- Dr. Rolf M. Schwiete Center for Limbal Stem Cell and Aniridia Research, Saarland University, Homburg, Saar, Germany
| | - Tanja Stachon
- Dr. Rolf M. Schwiete Center for Limbal Stem Cell and Aniridia Research, Saarland University, Homburg, Saar, Germany
| | - Tim Berger
- Department of Ophthalmology, Saarland University Medical Center, Homburg, Saar, Germany
| | - Zhen Li
- Dr. Rolf M. Schwiete Center for Limbal Stem Cell and Aniridia Research, Saarland University, Homburg, Saar, Germany
| | - Berthold Seitz
- Department of Ophthalmology, Saarland University Medical Center, Homburg, Saar, Germany
| | | | - Nóra Szentmáry
- Dr. Rolf M. Schwiete Center for Limbal Stem Cell and Aniridia Research, Saarland University, Homburg, Saar, Germany
- Department of Ophthalmology, Semmelweis University, Budapest, Hungary
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Suda K, Matsumoto Y, Ochi T, Koga H, Hattori N, Yamataka A, Nakamura T. Distinct effects of Fgf7 and Fgf10 on the terminal differentiation of murine bladder urothelium revealed using an organoid culture system. BMC Urol 2023; 23:169. [PMID: 37875848 PMCID: PMC10594814 DOI: 10.1186/s12894-023-01338-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2022] [Accepted: 10/09/2023] [Indexed: 10/26/2023] Open
Abstract
BACKGROUND Dysregulation of the terminal differentiation of bladder urothelium is associated with the pathogenesis of urinary tract disorders. Fibroblast growth factor (Fgf)7 and Fgf10 stimulate urothelial proliferation; however, their roles in cellular differentiation remain unclear. In this study, we used an organoid system to investigate the roles of these Fgfs in regulating bladder urothelium differentiation and identify their distribution patterns in the mouse bladder. METHODS Adult bladder epithelia (AdBE) isolated from adult mouse bladder tissues (AdBTs) were used to culture adult bladder organoids (AdBOs) in the presence of Fgf7 and Fgf10. The differentiation status of the cells in AdBTs, AdBEs, AdBOs, and neonatal bladder tissues (NeoBTs) was analyzed via quantitative real-time-PCR for the presence of undifferentiated cell markers (Krt5, Trp63, and Krt14) and differentiated cell markers (Krt20, Upk1a, Upk2, and Upk3a). Organoid cell proliferation was assessed by counting cell numbers using the trypan blue method. The effects of Fgf7 and Fgf10 on organoid differentiation were assessed using different doses of Fgfs, and the involvement of peroxisome proliferator-activated receptor γ (PPARγ) signaling in these processes was tested by introducing a PPARγ agonist (Rosiglitazone) and antagonist (T0070907) to the culture. The expression patterns of Fgf7 and Fgf10 were examined via in situ hybridization of AdBTs. RESULTS AdBOs showed higher expression of undifferentiated cell markers and lower expression of differentiated cell markers than AdBTs, NeoBTs, and AdBEs, indicating the relatively immature state of AdBOs. Differentiation of AdBOs was enhanced by Rosiglitazone and Fgf7, suggesting an interplay of intracellular signals between Fgf7 and PPARγ. Co-addition of T0070907 suppressed Fgf7-mediated differentiation, demonstrating that PPARγ is activated downstream of Fgf7 to promote cellular differentiation into umbrella cells. Furthermore, we found that Fgf7 is predominantly expressed in the umbrella cells of the urothelium, whereas Fgf10 is predominantly expressed in the urothelium and stroma of AdBTs. CONCLUSIONS We demonstrated that unlike Fgf10, Fgf7 induces cellular differentiation via PPARγ activity and has a unique tissue distribution pattern in the adult bladder. Further studies on the Fgf7-PPARγ signaling axis would provide insights into the differentiation mechanisms toward functional umbrella cells and the pathogenesis of several urinary tract diseases.
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Affiliation(s)
- Kazuto Suda
- Department of Pediatric General and Urogenital Surgery, Juntendo University School of Medicine, 2- 1-1 Hongo, Bunkyo-ku, Tokyo, 113-8421, Japan.
- Department of Research and Development for Organoids, Juntendo University Graduate School of Medicine, 2-1-1 Hongo, Bunkyo-ku, Tokyo, 113-8421, Japan.
| | - Yuka Matsumoto
- Department of Pediatric General and Urogenital Surgery, Juntendo University School of Medicine, 2- 1-1 Hongo, Bunkyo-ku, Tokyo, 113-8421, Japan
- Department of Research and Development for Organoids, Juntendo University Graduate School of Medicine, 2-1-1 Hongo, Bunkyo-ku, Tokyo, 113-8421, Japan
| | - Takanori Ochi
- Department of Pediatric General and Urogenital Surgery, Juntendo University School of Medicine, 2- 1-1 Hongo, Bunkyo-ku, Tokyo, 113-8421, Japan
| | - Hiroyuki Koga
- Department of Pediatric General and Urogenital Surgery, Juntendo University School of Medicine, 2- 1-1 Hongo, Bunkyo-ku, Tokyo, 113-8421, Japan
- Department of Research and Development for Organoids, Juntendo University Graduate School of Medicine, 2-1-1 Hongo, Bunkyo-ku, Tokyo, 113-8421, Japan
| | - Nobutaka Hattori
- Department of Neurology, Juntendo University School of Medicine, Tokyo, Japan
| | - Atsuyuki Yamataka
- Department of Pediatric General and Urogenital Surgery, Juntendo University School of Medicine, 2- 1-1 Hongo, Bunkyo-ku, Tokyo, 113-8421, Japan
| | - Tetsuya Nakamura
- Department of Research and Development for Organoids, Juntendo University Graduate School of Medicine, 2-1-1 Hongo, Bunkyo-ku, Tokyo, 113-8421, Japan.
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Pérez-Mora S, Ocampo-López J, Gómez-García MDC, Pérez-Ishiwara DG. BFNB Enhances Hair Growth in C57BL/6 Mice through the Induction of EGF and FGF7 Factors and the PI3K-AKT-β-Catenin Pathway. Int J Mol Sci 2023; 24:12110. [PMID: 37569486 PMCID: PMC10418640 DOI: 10.3390/ijms241512110] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2023] [Revised: 07/25/2023] [Accepted: 07/26/2023] [Indexed: 08/13/2023] Open
Abstract
The objective of this study was to investigate the potential effects of a formulation derived from the bioactive fraction of nanostructured Bacopa procumbens (BFNB) on the promotion of hair growth in C57BL/6 mice. The characterization of the follicular phases and histomorphological analysis showed that the topical application of the formulation for 15 days significantly increased pigmentation and hair growth on the dorsum and head of the mice. Additionally, an acceleration of the follicular cycle phases was observed, along with an increase in the number of follicles, hair length, and diameter, compared to mice treated with minoxidil. In silico analysis and molecular characterization demonstrated that BFNB enhances the expression of epidermal growth factor (EGF) and fibroblast growth factor 7 (FGF7), activating the PI3K-AKT-β-catenin signaling pathway, as well as the expression of PCNA, KI-67, Cyclin D1, and Cyclin E, regulating the cell cycle and cell proliferation, crucial events for hair regeneration. Our results strongly suggest the utility of BFNB as a therapeutic alternative to stimulate hair growth and promote hair health.
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Affiliation(s)
- Salvador Pérez-Mora
- Laboratorio de Biomedicina Molecular 1, ENMyH, Instituto Politécnico Nacional, Mexico City 07320, Mexico; (S.P.-M.); (M.d.C.G.-G.)
| | - Juan Ocampo-López
- Laboratorio de Histología e Histopatología (Área Académica de MVZ, ICAp), Universidad Autónoma del Estado de Hidalgo, Tulancingo de Bravo 43600, Mexico;
| | - María del Consuelo Gómez-García
- Laboratorio de Biomedicina Molecular 1, ENMyH, Instituto Politécnico Nacional, Mexico City 07320, Mexico; (S.P.-M.); (M.d.C.G.-G.)
| | - David Guillermo Pérez-Ishiwara
- Laboratorio de Biomedicina Molecular 1, ENMyH, Instituto Politécnico Nacional, Mexico City 07320, Mexico; (S.P.-M.); (M.d.C.G.-G.)
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Wu JJ, Jin J, Li YH, Wang C, Bai J, Jiang QJ, He TX, Nie SJ, Li DJ, Qu LF. LncRNA FGF7-5 and lncRNA GLRX3 together inhibits the formation of carotid plaque via regulating the miR-2681-5p/ERCC4 axis in atherosclerosis. Cell Cycle 2023; 22:165-182. [PMID: 36071684 PMCID: PMC9815221 DOI: 10.1080/15384101.2022.2110446] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2021] [Revised: 07/13/2022] [Accepted: 08/03/2022] [Indexed: 01/09/2023] Open
Abstract
Atherosclerotic plaques belong to the common vascular disease in the aged, which rupture will lead to acute thromboembolic diseases, the leading cause of fatal cardiovascular events. Accumulating evidence indicates that the lncRNAs-miRNAs-mRNA regulatory network plays a critical role in atherosclerosis. Based on RNA sequencing (GSE207252), we constructed expression profiles of lncRNAs, microRNAs, and mRNA in the carotid plaque of atherosclerosis patients and analyzed differentially expressed genes (DEGs). We identified three candidate lncRNAs using two algorithms (LASSO and SVM-RFE): lnc_GLRX3, lnc_FGF7-5, and DISC1FP1). LNCipedia, TargetScan, and miRDB databases were used to predict target miRNAs of lncRNAs and target genes of miRNAs. Gene ontology (GO) functional annotation, Kyoto Encyclopedia of Genes and Genomes (KEGG) pathway analysis, and Gene Set Enrichment Analysis (GSEA) analysis of DEGs was carried out using the R package clusterProfiler. A PPI network was constructed using the STRING website and visualized by Cytoscape. According to the "MCC" method of the plug-in cytoHubba in Cytoscape, ERCC4 was the top hub gene of the PPI network. We constructed a lncRNA_FGF7-5/lncRNA_GLRX3-miR-2681-5p-ERCC4 regulatory network for carotid plaque using lncRNA-miRNA and miRNA-mRNA pairs. Next, lncRNA_FGF7-5 and lncRNA_GLRX3 targeted miR-2681-5p directly to upregulate ERCC4 expression. Silencing of lncRNA_FGF7-5 and lncRNA_GLRX3 promoted apoptosis and TP53 expression in HUVECs treated with ox-LDL; however, these effects were reversed by ERCC4-overexpression. Taken together, these findings indicated that lncRNA_FGF7-5 and lncRNA_GLRX3 together reduced atherosclerosis-induced apoptosis of HUVECs via targeting miR-2681-5p to increase ERCC4 expression, thereby preventing the formation of carotid plaque and finally inhibiting atherosclerosis progression.
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Affiliation(s)
- Jian-Jin Wu
- Department of Vascular and Endovascular Surgery, Second Affiliated Hospital of Naval Medical University, Shanghai, China
| | - Jie Jin
- Department of Vascular and Endovascular Surgery, Second Affiliated Hospital of Naval Medical University, Shanghai, China
| | - Yong-Hua Li
- Department of Anesthesiology, Changzheng Hospital, Second Affiliated Hospital of Naval Medical University, Shanghai, China
| | - Chao Wang
- Department of Vascular and Endovascular Surgery, Second Affiliated Hospital of Naval Medical University, Shanghai, China
| | - Jun Bai
- Department of Vascular and Endovascular Surgery, Second Affiliated Hospital of Naval Medical University, Shanghai, China
| | - Qing-Jun Jiang
- Department of Vascular and Endovascular Surgery, Second Affiliated Hospital of Naval Medical University, Shanghai, China
| | - Tian-Xiao He
- Department of Vascular and Endovascular Surgery, Second Affiliated Hospital of Naval Medical University, Shanghai, China
| | - Shao-Jie Nie
- Department of Vascular and Endovascular Surgery, Second Affiliated Hospital of Naval Medical University, Shanghai, China
| | - Dong-Jie Li
- Department of Pharmacy, Shanghai Tenth People’s Hospital, Tongji University School of Medicine, Shanghai, China
- Institute of Nuclear Medicine, Tongji University School of Medicine, Shanghai, China
| | - Le-Feng Qu
- Department of Vascular and Endovascular Surgery, Second Affiliated Hospital of Naval Medical University, Shanghai, China
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10
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Takaya K, Aramaki-Hattori N, Sakai S, Okabe K, Asou T, Kishi K. Fibroblast Growth Factor 7 Suppresses Fibrosis and Promotes Epithelialization during Wound Healing in Mouse Fetuses. Int J Mol Sci 2022; 23:ijms23137087. [PMID: 35806092 PMCID: PMC9266578 DOI: 10.3390/ijms23137087] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2022] [Revised: 06/23/2022] [Accepted: 06/24/2022] [Indexed: 02/07/2023] Open
Abstract
Adult mammalian wounds leave visible scars, whereas skin wounds in developing mouse fetuses are scarless until a certain point in development when complete regeneration occurs, including the structure of the dermis and skin appendages. Analysis of the molecular mechanisms at this transition will provide clues for achieving scarless wound healing. The fibroblast growth factor (FGF) family is a key regulator of inflammation and fibrosis during wound healing. We aimed to determine the expression and role of FGF family members in fetal wound healing. ICR mouse fetuses were surgically wounded at embryonic day 13 (E13), E15, and E17. Expression of FGF family members and FGF receptor (FGFR) in tissue samples from these fetuses was evaluated using in situ hybridization and reverse transcription-quantitative polymerase chain reaction. Fgfr1 was downregulated in E15 and E17 wounds, and its ligand Fgf7 was upregulated in E13 and downregulated in E15 and E17. Recombinant FGF7 administration in E15 wounds suppressed fibrosis and promoted epithelialization at the wound site. Therefore, the expression level of Fgf7 may correlate with scar formation in late mouse embryos, and external administration of FGF7 may represent a therapeutic option to suppress fibrosis and reduce scarring.
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Affiliation(s)
- Kento Takaya
- Correspondence: ; Tel.: +81-3-5363-3814; Fax: +81-3-3352-1054
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11
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Qiu L, Cai J, Zhang N, Ma L, Fan FY, Li XM. Effect of miR-381-3p/FGF7 axis on the osteogenic differentiation of bone marrow mesenchymal stem cells through MEK/ERK signaling pathway. Tissue Cell 2022; 76:101791. [PMID: 35427886 DOI: 10.1016/j.tice.2022.101791] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2021] [Revised: 03/17/2022] [Accepted: 03/29/2022] [Indexed: 01/15/2023]
Abstract
Although microRNAs (miRNAs) exert an important role in the osteogenesis of mesenchymal stem cells (MSCs), the effect of miR-381-3p on the osteogenic differentiation in MBD‑MSCs is still unclear. The BMMSCs from patients with MBD (MBD‑MSC) or normal participants (Normal‑MSC) were isolated and induced to differentiation with dexamethasone. BMMSCs were transfected with miR-381-3p mimic, miR-381-3p inhibitor, and FGF7 siRNA to regulate the expression of miR-381-3p or FGF7. The direct binding between miR-381-3p and FGF7 was predicted and confirmed by bioinformatics prediction and luciferase reporter assay. The effect of miR-381-3p on the osteogenic differentiation of BMMSCs was assessed by RT‑qPCR, alizarin Red S staining and western blot assays. Isolated BMMSCs showed the regular morphology, and were positive for CD44, CD90 and CD105 but negative for CD34 and CD45 markers. The calcium deposition and the relative mRNA expression levels of ALP, OC and OPN after induction were markedly enhanced. MiR-381-3p was upregulated in BMMSCs. Also, inhibition of miR-381-3p notably promoted osteogenic differentiation, vice versa. Besides, miR-381-3p could directly target FGF7 and negatively modulate the expression of FGF7. Moreover, inhibition of FGF7 attenuated the increase of the calcium deposition, and the relative mRNA expression of ALP, OC and OPN caused by the downregulation of miR-381-3p. In addition, the miR-381-3p inhibitor-induced the enhancement of the relative protein expressions of FGFR2, p-MEK and p-ERK1/2 were significantly reduced by the co-transfection of si-FGF7. Furthermore, the application of LY3214996, the inhibitor of ERK also verified these outcomes. MiR-381-3p directly targeting FGF7 modulated the osteogenic differentiation via MEK/ERK signaling pathway in BMMSCs.
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Affiliation(s)
- Ling Qiu
- Department of Hematology, Southwest Medical University, Luzhou, China; Department of Hematology and Hematopoietic Stem Cell Transplantation Centre, General Hospital of the Chinese People's Liberation Army Western Theater, Chengdu, China
| | - Jiao Cai
- Department of Hematology and Hematopoietic Stem Cell Transplantation Centre, General Hospital of the Chinese People's Liberation Army Western Theater, Chengdu, China
| | - Nan Zhang
- Department of Hematology and Hematopoietic Stem Cell Transplantation Centre, General Hospital of the Chinese People's Liberation Army Western Theater, Chengdu, China
| | - Lei Ma
- Department of Hematology and Hematopoietic Stem Cell Transplantation Centre, General Hospital of the Chinese People's Liberation Army Western Theater, Chengdu, China
| | - Fang-Yi Fan
- Department of Hematology and Hematopoietic Stem Cell Transplantation Centre, General Hospital of the Chinese People's Liberation Army Western Theater, Chengdu, China.
| | - Xiao-Ming Li
- Department of Hematology, Southwest Medical University, Luzhou, China.
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12
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Narla ST, Bushnell DS, Duara JL, Bates CM. AKT Signaling Downstream of KGF Is Necessary and Sufficient for Blocking Cyclophosphamide Bladder Injury. Am J Pathol 2022; 192:604-612. [PMID: 35063403 PMCID: PMC8961277 DOI: 10.1016/j.ajpath.2022.01.004] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/04/2021] [Revised: 12/23/2021] [Accepted: 01/04/2022] [Indexed: 01/01/2023]
Abstract
Keratinocyte growth factor (KGF) drives phosphorylated (activated) AKT (pAKT) in bladder urothelium, which correlates with cytoprotection from cyclophosphamide. The current study determined whether: i) KGF modifies AKT targets [B-cell lymphoma protein 2-associated agonist of cell death (BAD) and mammalian target of rapamycin complex (mTORC)-1] that could block apoptosis; ii) AKT signaling is required for KGF cytoprotection; iii) direct AKT activation drives cytoprotection; iv) co-administration of KGF and an AKT inhibitor blocks urothelial cytoprotection and AKT and AKT-target activation; and v) an AKT agonist prevents cyclophosphamide-induced urothelial apoptosis. Mice were given KGF and cyclophosphamide (or sham injury), and pBAD (readout of BAD inhibition) or p-p70S6k (pS6, readout of mTORC1 signaling) was assessed. KGF induced pBAD urothelial staining and prevented cyclophosphamide-induced loss of urothelial pS6 staining (likely stabilizing mTORC1 activity). Co-administration of KGF and AKT inhibitor blocked KGF-driven urothelial cytoprotection from cyclophosphamide and prevented pAKT, pBAD, and pS6 urothelial expression. Conversely, systemic AKT agonist blocked cyclophosphamide-induced urothelial apoptosis and induced pAKT, pBAD, and pS6, similar to KGF. Thus, the KGF-AKT signaling axis appeared to phosphorylate (suppress) BAD and prevent cyclophosphamide-induced loss of mTORC1 signaling, both of which likely suppress apoptosis. Additionally, AKT signaling was required for KGF-driven cytoprotection, and direct AKT activation was sufficient for blocking apoptosis. Thus, AKT may be a therapeutic target for blocking urothelial apoptosis from cyclophosphamide.
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Affiliation(s)
- Sridhar T Narla
- Division of Nephrology, Department of Pediatrics, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania
| | - Daniel S Bushnell
- Division of Nephrology, Department of Pediatrics, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania
| | - Joanne L Duara
- Division of Neonatology, Department of Pediatrics, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania
| | - Carlton M Bates
- Division of Nephrology, Department of Pediatrics, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania; Division of Nephrology, Children's Hospital, University of Pittsburgh Medical Center, Pittsburgh, Pennsylvania.
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13
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Zhong Q, Liu Y, Correa MR, Marconett CN, Minoo P, Li C, Ann DK, Zhou B, Borok Z. FOXO1 Couples KGF and PI-3K/AKT Signaling to NKX2.1-Regulated Differentiation of Alveolar Epithelial Cells. Cells 2022; 11:cells11071122. [PMID: 35406686 PMCID: PMC8997990 DOI: 10.3390/cells11071122] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2022] [Revised: 03/21/2022] [Accepted: 03/24/2022] [Indexed: 02/03/2023] Open
Abstract
NKX2.1 is a master regulator of lung morphogenesis and cell specification; however, interactions of NKX2.1 with various transcription factors to regulate cell-specific gene expression and cell fate in the distal lung remain incompletely understood. FOXO1 is a key regulator of stem/progenitor cell maintenance/differentiation in several tissues but its role in the regulation of lung alveolar epithelial progenitor homeostasis has not been evaluated. We identified a novel role for FOXO1 in alveolar epithelial cell (AEC) differentiation that results in the removal of NKX2.1 from surfactant gene promoters and the subsequent loss of surfactant expression in alveolar epithelial type I-like (AT1-like) cells. We found that the FOXO1 forkhead domain potentiates a loss of surfactant gene expression through an interaction with the NKX2.1 homeodomain, disrupting NKX2.1 binding to the SFTPC promoter. In addition, blocking PI-3K/AKT signaling reduces phosphorylated FOXO-1 (p-FOXO1), allowing accumulated nuclear FOXO1 to interact with NKX2.1 in differentiating AEC. Inhibiting AEC differentiation in vitro with keratinocyte growth factor (KGF) maintained an AT2 cell phenotype through increased PI3K/AKT-mediated FOXO1 phosphorylation, resulting in higher levels of surfactant expression. Together these results indicate that FOXO1 plays a central role in AEC differentiation by directly binding NKX2.1 and suggests an essential role for FOXO1 in mediating AEC homeostasis.
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Affiliation(s)
- Qian Zhong
- Division of Pulmonary, Critical Care and Sleep Medicine, Department of Medicine, Keck School of Medicine, University of Southern California, Los Angeles, CA 90089, USA; (Q.Z.); (Y.L.)
| | - Yixin Liu
- Division of Pulmonary, Critical Care and Sleep Medicine, Department of Medicine, Keck School of Medicine, University of Southern California, Los Angeles, CA 90089, USA; (Q.Z.); (Y.L.)
- Hastings Center for Pulmonary Research, Keck School of Medicine, University of Southern California, Los Angeles, CA 90089, USA; (M.R.C.); (C.N.M.); (P.M.); (C.L.)
| | - Michele Ramos Correa
- Hastings Center for Pulmonary Research, Keck School of Medicine, University of Southern California, Los Angeles, CA 90089, USA; (M.R.C.); (C.N.M.); (P.M.); (C.L.)
- USC Norris Comprehensive Cancer Center, Keck School of Medicine, University of Southern California, Los Angeles, CA 90089, USA
- Department of Surgery, Keck School of Medicine, University of Southern California, Los Angeles, CA 90089, USA
- Department of Biochemistry and Molecular Medicine, Keck School of Medicine, University of Southern California, Los Angeles, CA 90089, USA
| | - Crystal Nicole Marconett
- Hastings Center for Pulmonary Research, Keck School of Medicine, University of Southern California, Los Angeles, CA 90089, USA; (M.R.C.); (C.N.M.); (P.M.); (C.L.)
- USC Norris Comprehensive Cancer Center, Keck School of Medicine, University of Southern California, Los Angeles, CA 90089, USA
- Department of Surgery, Keck School of Medicine, University of Southern California, Los Angeles, CA 90089, USA
- Department of Biochemistry and Molecular Medicine, Keck School of Medicine, University of Southern California, Los Angeles, CA 90089, USA
| | - Parviz Minoo
- Hastings Center for Pulmonary Research, Keck School of Medicine, University of Southern California, Los Angeles, CA 90089, USA; (M.R.C.); (C.N.M.); (P.M.); (C.L.)
- Department of Pediatrics, Keck School of Medicine, University of Southern California, Los Angeles, CA 90089, USA
| | - Changgong Li
- Hastings Center for Pulmonary Research, Keck School of Medicine, University of Southern California, Los Angeles, CA 90089, USA; (M.R.C.); (C.N.M.); (P.M.); (C.L.)
- Department of Pediatrics, Keck School of Medicine, University of Southern California, Los Angeles, CA 90089, USA
| | - David K. Ann
- Department of Diabetes Complications and Metabolism, Beckman Research Institute, City of Hope Medical Center, Duarte, CA 91010, USA;
| | - Beiyun Zhou
- Division of Pulmonary, Critical Care and Sleep Medicine, Department of Medicine, Keck School of Medicine, University of Southern California, Los Angeles, CA 90089, USA; (Q.Z.); (Y.L.)
- Hastings Center for Pulmonary Research, Keck School of Medicine, University of Southern California, Los Angeles, CA 90089, USA; (M.R.C.); (C.N.M.); (P.M.); (C.L.)
- USC Norris Comprehensive Cancer Center, Keck School of Medicine, University of Southern California, Los Angeles, CA 90089, USA
- Correspondence: (B.Z.); (Z.B.); Tel.: +1-323-442-1108 (B.Z.); +1-858-246-0449 (Z.B.)
| | - Zea Borok
- Hastings Center for Pulmonary Research, Keck School of Medicine, University of Southern California, Los Angeles, CA 90089, USA; (M.R.C.); (C.N.M.); (P.M.); (C.L.)
- USC Norris Comprehensive Cancer Center, Keck School of Medicine, University of Southern California, Los Angeles, CA 90089, USA
- Division of Pulmonary, Critical Care and Sleep Medicine, Department of Medicine, University of California, San Diego, CA 92037, USA
- Correspondence: (B.Z.); (Z.B.); Tel.: +1-323-442-1108 (B.Z.); +1-858-246-0449 (Z.B.)
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Abstract
The incidence of cutaneous keratinocyte-derived cancers is increasing globally. Basal cell carcinoma (BCC) is the most common malignancy worldwide, and cutaneous squamous cell carcinoma (cSCC) is the most common metastatic skin cancer. BCC can be classified into subtypes based on the histology, and these subtypes are classified further into low- and high-risk tumors. There is an increasing need to identify new therapeutic strategies for the treatment of unresectable and metastatic cSCC, and for aggressive BCC variants such as infiltrating, basosquamous or morpheaform BCCs. The most important risk factor for BCC and cSCC is solar UV radiation, which causes genetic and epigenetic alterations in keratinocytes. Similar gene mutations are noted already in sun-exposed normal skin emphasizing the role of the alterations in the tumor microenvironment in the progression of cSCC. Early events in cSCC progression are alterations in the composition of basement membrane and dermal extracellular matrix induced by influx of microbes, inflammatory cells and activated stromal fibroblasts. Activated fibroblasts promote inflammation and produce growth factors and proteolytic enzymes, including matrix metalloproteinases (MMPs). Transforming growth factor-β produced by tumor cells and fibroblasts induces the expression of MMPs by cSCC cells and promotes their invasion. Fibroblast-derived keratinocyte growth factor suppresses the malignant phenotype of cSCC cells by inhibiting the expression of several MMPs. These findings emphasize the importance of interplay of tumor and stromal cells in the progression of cSCC and BCC and suggest tumor microenvironment as a therapeutic target in cSCC and aggressive subtypes of BCC.
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Affiliation(s)
- Pilvi Riihilä
- Department of DermatologyUniversity of Turku and Turku University HospitalTurkuFinland
- FICAN West Cancer Centre Research LaboratoryUniversity of Turku and Turku University HospitalTurkuFinland
| | - Liisa Nissinen
- Department of DermatologyUniversity of Turku and Turku University HospitalTurkuFinland
- FICAN West Cancer Centre Research LaboratoryUniversity of Turku and Turku University HospitalTurkuFinland
| | - Veli‐Matti Kähäri
- Department of DermatologyUniversity of Turku and Turku University HospitalTurkuFinland
- FICAN West Cancer Centre Research LaboratoryUniversity of Turku and Turku University HospitalTurkuFinland
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15
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Park S, Kang W, Choi D, Son B, Park T. Nonanal Stimulates Growth Factors via Cyclic Adenosine Monophosphate (cAMP) Signaling in Human Hair Follicle Dermal Papilla Cells. Int J Mol Sci 2020; 21:ijms21218054. [PMID: 33126774 PMCID: PMC7662673 DOI: 10.3390/ijms21218054] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2020] [Revised: 10/21/2020] [Accepted: 10/26/2020] [Indexed: 12/30/2022] Open
Abstract
Human hair follicle dermal papilla cells (DPCs) are a specialized population of cells located in the hair follicles and regulate hair growth and development, particularly by releasing numerous growth factors in response to various physiological conditions. In the present study, we aimed to test whether nonanal, a scent compound from plants, stimulated growth factors in DPCs and to delineate the underlying mechanisms involved. We found that nonanal promoted DPC proliferation in a dose-dependent manner. Meanwhile, it also increased the intracellular cyclic adenosine monophosphate (cAMP) levels and the expression of various growth factor genes such as vascular endothelial growth factor, keratinocyte growth factor, and insulin-like growth factor 1. Furthermore, nonanal treatment stimulated DPC migration. Notably, the benefits of nonanal use were abrogated by cAMP inhibition. Our results reveal the potential of nonanal in preventing hair loss and suggest that its effects are cAMP-mediated in DPCs.
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Affiliation(s)
| | | | | | | | - Taesun Park
- Correspondence: ; Tel.: +82-2-2123-3123; Fax: +82-2-365-3118
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16
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Narla ST, Bushnell DS, Schaefer CM, Nouraie M, Bates CM. Keratinocyte Growth Factor Reduces Injury and Leads to Early Recovery from Cyclophosphamide Bladder Injury. Am J Pathol 2020; 190:108-124. [PMID: 31654636 PMCID: PMC6943803 DOI: 10.1016/j.ajpath.2019.09.015] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/08/2019] [Revised: 08/24/2019] [Accepted: 09/03/2019] [Indexed: 12/11/2022]
Abstract
Keratinocyte growth factor (KGF) improves cyclophosphamide-induced bladder injury. To understand the mechanisms, we subcutaneously administered KGF to mice 24 hours before i.p. cyclophosphamide administration, followed by histologic assays and immunostaining. In vehicle (phosphate-buffered saline)-pretreated mice, nonapoptotic superficial cell death from 2 to 6 hours and apoptosis in intermediate and basal cells from 4 to 24 hours was observed after cyclophosphamide. Despite superficial cell loss, KGF suppressed intermediate and basal cell apoptosis, likely via AKT signaling. At 6 and 24 hours after cyclophosphamide, KGF-pretreated mice also had apparent extracellular signal-regulated kinase (ERK)-driven proliferation of mostly keratin 5 (KRT5)+/KRT14- intermediate cells. At 1 to 28 days after cyclophosphamide treatment, mostly KRT14+ basal progenitor cells proliferated in response to injury, peaking at 3 days in both treatment groups; however, proliferation rates were lower in the KGF group at 3 days, consistent with less injury. Three days after injury, unlike controls, KGF-pretreated mice had regenerated superficial cells. At 10 and 28 days after cyclophosphamide treatment, KGF-pretreated mice had little proliferation and marked restoration of urothelial layers, whereas the phosphate-buffered saline group had ongoing regeneration. Administration of KGF to uninjured mice reproduced ERK-driven KRT5+/KRT14- proliferation seen in injured mice; KRT14+ cells were unaffected. KGF pretreatment blocks cyclophosphamide-induced intermediate and basal cell apoptosis, likely by phosphorylated AKT, and drives phosphorylated ERK-mediated KRT5+/KRT14- cell proliferation, leading to early urothelial regeneration.
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Affiliation(s)
- Sridhar T Narla
- Division of Nephrology, Department of Pediatrics, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania
| | - Daniel S Bushnell
- Division of Nephrology, Department of Pediatrics, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania
| | - Caitlin M Schaefer
- Division of Nephrology, Department of Pediatrics, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania
| | - Mehdi Nouraie
- Division of Pulmonary, Allergy and Critical Care Medicine, Department of Medicine, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania
| | - Carlton M Bates
- Division of Nephrology, Department of Pediatrics, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania; Division of Nephrology, UPMC Children's Hospital of Pittsburgh, Pittsburgh, Pennsylvania.
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17
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Klufa J, Bauer T, Hanson B, Herbold C, Starkl P, Lichtenberger B, Srutkova D, Schulz D, Vujic I, Mohr T, Rappersberger K, Bodenmiller B, Kozakova H, Knapp S, Loy A, Sibilia M. Hair eruption initiates and commensal skin microbiota aggravate adverse events of anti-EGFR therapy. Sci Transl Med 2019; 11:eaax2693. [PMID: 31826981 DOI: 10.1126/scitranslmed.aax2693] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2019] [Revised: 07/30/2019] [Accepted: 10/11/2019] [Indexed: 12/11/2022]
Abstract
Epidermal growth factor receptor (EGFR)-targeted anticancer therapy induces stigmatizing skin toxicities affecting patients' quality of life and therapy adherence. The lack of mechanistic details underlying these adverse events hampers their management. We found that EGFR/ERK signaling is required in LRIG1-positive stem cells during de novo hair eruption to secure barrier integrity and prevent the invasion of commensal microbiota and inflammatory skin disease. EGFR-deficient epidermis is permissive for microbiota outgrowth and displays an atopic-like TH2-dominated signature. The opening of the follicular ostia during hair eruption allows invasion of commensal microbiota into the hair follicle, initiating an additional TH1 and TH17 response culminating in chronic folliculitis. Restoration of epidermal ERK signaling via prophylactic FGF7 treatment or transgenic SOS expression rescues the barrier defect in the absence of EGFR, highlighting a therapeutic anchor point. These data reveal that commensal skin microbiota provoke atopic-like inflammatory skin diseases by invading into the follicular opening of erupting hair.
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Affiliation(s)
- Jörg Klufa
- Institute of Cancer Research, Department of Medicine I, Medical University of Vienna and Comprehensive Cancer Center, Vienna 1090, Austria
| | - Thomas Bauer
- Institute of Cancer Research, Department of Medicine I, Medical University of Vienna and Comprehensive Cancer Center, Vienna 1090, Austria.
| | - Buck Hanson
- Division of Microbial Ecology, Department of Microbiology and Ecosystem Science, Research Network Chemistry meets Microbiology, University of Vienna, Vienna 1090, Austria
| | - Craig Herbold
- Division of Microbial Ecology, Department of Microbiology and Ecosystem Science, Research Network Chemistry meets Microbiology, University of Vienna, Vienna 1090, Austria
| | - Philipp Starkl
- CeMM-Research Center for Molecular Medicine of the Austrian Academy of Sciences, Vienna 1090, Austria
- Laboratory of Infection Biology, Department of Medicine I, Medical University of Vienna, Vienna 1090, Austria
| | - Beate Lichtenberger
- Institute of Cancer Research, Department of Medicine I, Medical University of Vienna and Comprehensive Cancer Center, Vienna 1090, Austria
| | - Dagmar Srutkova
- Laboratory of Gnotobiology, Institute of Microbiology, Czech Academy of Sciences, v.v.i., Novy Hradek 549 22, Czech Republic
| | - Daniel Schulz
- Institute of Molecular Life Sciences, University of Zurich, Zurich 8057, Switzerland
| | - Igor Vujic
- Department of Dermatology and Venereology, Medical Institution Rudolfstiftung, Vienna 1030, Austria
- Department of Dermatology, Medical University of Vienna, Vienna 1090, Austria
| | - Thomas Mohr
- Institute of Cancer Research, Department of Medicine I, Medical University of Vienna and Comprehensive Cancer Center, Vienna 1090, Austria
| | - Klemens Rappersberger
- Department of Dermatology and Venereology, Medical Institution Rudolfstiftung, Vienna 1030, Austria
| | - Bernd Bodenmiller
- Institute of Molecular Life Sciences, University of Zurich, Zurich 8057, Switzerland
| | - Hana Kozakova
- Laboratory of Gnotobiology, Institute of Microbiology, Czech Academy of Sciences, v.v.i., Novy Hradek 549 22, Czech Republic
| | - Sylvia Knapp
- CeMM-Research Center for Molecular Medicine of the Austrian Academy of Sciences, Vienna 1090, Austria
- Laboratory of Infection Biology, Department of Medicine I, Medical University of Vienna, Vienna 1090, Austria
| | - Alexander Loy
- Division of Microbial Ecology, Department of Microbiology and Ecosystem Science, Research Network Chemistry meets Microbiology, University of Vienna, Vienna 1090, Austria
| | - Maria Sibilia
- Institute of Cancer Research, Department of Medicine I, Medical University of Vienna and Comprehensive Cancer Center, Vienna 1090, Austria.
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18
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Lee KH, Choi D, Jeong SI, Kim SJ, Lee CH, Seo HS, Jeong HS. Eclipta prostrata promotes the induction of anagen, sustains the anagen phase through regulation of FGF-7 and FGF-5. Pharm Biol 2019; 57:105-111. [PMID: 30757935 PMCID: PMC6374973 DOI: 10.1080/13880209.2018.1561729] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/03/2018] [Revised: 11/30/2018] [Accepted: 12/17/2018] [Indexed: 06/09/2023]
Abstract
CONTEXT Eclipta prostrata L. (Asteraceae) (EP) has been widely used for the treatment of skin disease in Asian traditional medicine. OBJECTIVE This study investigates the potency of EP in promoting hair growth in vivo and in vitro. MATERIALS AND METHODS C57BL/6N mice were divided into four groups (n = 4) as follows: control (topical treatment of normal saline), topical 3% minoxidil to the dorsal skin of mice for 14 days, and low (1 mg/day) and high (10 mg/day) doses of EP orally administered once a day for 14 days. Dorsal hairs of C57BL/6N mice were depilated to synchronize anagen induction. Hair growth activity was evaluated by gross and microscopic observations. Sections of dorsal skin were stained with haematoxylin and eosin. We also treated the various concentrations of EP (5, 10 and 50 μg/mL) for 24 h on the human dermal papilla cells (HDPs) and examined the effects of EP on the expression of FGF-7 and mTOR signalling. RESULTS EP enhanced the induction of anagen in the dorsal skin of mice, characterized by the appearance of inner root sheath along with hair shaft, the emergence of hair shaft through the epidermis. EP increased the expression of FGF-7, while decreased the level of FGF-5 in C57/BL6 mice. EP also increased the expression of FGF-7, activated the mTOR signalling in HDPs. DISCUSSION AND CONCLUSIONS These results suggest that EP has a potency to enhance the growth of hair follicle, promoting hair growth through regulation of FGF-7 and FGF-5.
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Affiliation(s)
- Keun-Hyeun Lee
- Division of Applied Medicine, School of Korean Medicine, Pusan National University, Yangsan-si, Republic of Korea
| | - Dabin Choi
- Division of Applied Medicine, School of Korean Medicine, Pusan National University, Yangsan-si, Republic of Korea
| | - Seung-Il Jeong
- Jeonju AgroBio-Materials Institute, Jeonju-si, Republic of Korea
| | - Sang-Jun Kim
- Jeonju AgroBio-Materials Institute, Jeonju-si, Republic of Korea
| | - Chang Hyun Lee
- Department of Anatomy, College of Korean Medicine, Woosuk University, Wanju, Republic of Korea
| | - Hyung-Sik Seo
- Department of Ophthalmology, Otolaryngology and Dermatology, Korean Medicine Hospital, Pusan National University, Yangsan-si, Republic of Korea
| | - Han-Sol Jeong
- Division of Applied Medicine, School of Korean Medicine, Pusan National University, Yangsan-si, Republic of Korea
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19
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Fu R, Han CF, Ni T, Di L, Liu LJ, Lv WC, Bi YR, Jiang N, He Y, Li HM, Wang S, Xie H, Chen BA, Wang XS, Weiss SJ, Lu T, Guo QL, Wu ZQ. A ZEB1/p53 signaling axis in stromal fibroblasts promotes mammary epithelial tumours. Nat Commun 2019; 10:3210. [PMID: 31324807 PMCID: PMC6642263 DOI: 10.1038/s41467-019-11278-7] [Citation(s) in RCA: 41] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2018] [Accepted: 07/04/2019] [Indexed: 01/03/2023] Open
Abstract
Accumulating evidence indicates that the zinc-finger transcription factor ZEB1 is predominantly expressed in the stroma of several tumours. However, the role of stromal ZEB1 in tumour progression remains unexplored. In this study, while interrogating human databases, we uncover a remarkable decrease in relapse-free survival of breast cancer patients expressing high ZEB1 levels in the stroma. Using a mouse model of breast cancer, we show that ZEB1 inactivation in stromal fibroblasts suppresses tumour initiation, progression and metastasis. We associate this with reduced extracellular matrix remodeling, immune cell infiltration and decreased angiogenesis. ZEB1 deletion in stromal fibroblasts increases acetylation, expression and recruitment of p53 to FGF2/7, VEGF and IL6 promoters, thereby reducing their production and secretion into the surrounding stroma. Importantly, p53 ablation in ZEB1 stroma-deleted mammary tumours sufficiently recovers the impaired cancer growth and progression. Our findings identify the ZEB1/p53 axis as a stroma-specific signaling pathway that promotes mammary epithelial tumours.
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MESH Headings
- Animals
- Breast/pathology
- Breast Neoplasms/metabolism
- Breast Neoplasms/pathology
- Cell Line, Tumor
- Cell Proliferation
- Cell Transformation, Neoplastic/metabolism
- Extracellular Matrix/metabolism
- Female
- Fibroblast Growth Factor 2/metabolism
- Fibroblast Growth Factor 7/metabolism
- Fibroblasts/metabolism
- Gene Deletion
- Gene Expression Regulation, Neoplastic
- Genetic Predisposition to Disease/genetics
- Humans
- Interleukin-6
- Male
- Mammary Neoplasms, Experimental/metabolism
- Mammary Neoplasms, Experimental/pathology
- Mice
- Mice, Knockout
- Neoplasm Recurrence, Local/metabolism
- Neoplasms, Experimental
- Neoplasms, Glandular and Epithelial/metabolism
- Neoplasms, Glandular and Epithelial/pathology
- Signal Transduction
- Tumor Microenvironment
- Tumor Suppressor Protein p53/metabolism
- Vascular Endothelial Growth Factor A/metabolism
- Zinc Finger E-box-Binding Homeobox 1/genetics
- Zinc Finger E-box-Binding Homeobox 1/metabolism
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Affiliation(s)
- Rong Fu
- State Key Laboratory of Natural Medicines, Jiangsu Key Laboratory of Carcinogenesis and Intervention, School of Basic Medicine and Clinical Pharmacy, China Pharmaceutical University, Nanjing, 211198, China
| | - Chen-Feng Han
- State Key Laboratory of Natural Medicines, Jiangsu Key Laboratory of Carcinogenesis and Intervention, School of Basic Medicine and Clinical Pharmacy, China Pharmaceutical University, Nanjing, 211198, China
| | - Ting Ni
- State Key Laboratory of Natural Medicines, Jiangsu Key Laboratory of Carcinogenesis and Intervention, School of Basic Medicine and Clinical Pharmacy, China Pharmaceutical University, Nanjing, 211198, China
| | - Lei Di
- State Key Laboratory of Natural Medicines, Jiangsu Key Laboratory of Carcinogenesis and Intervention, School of Basic Medicine and Clinical Pharmacy, China Pharmaceutical University, Nanjing, 211198, China
| | - Li-Juan Liu
- State Key Laboratory of Natural Medicines, Jiangsu Key Laboratory of Carcinogenesis and Intervention, School of Basic Medicine and Clinical Pharmacy, China Pharmaceutical University, Nanjing, 211198, China
| | - Wen-Cong Lv
- State Key Laboratory of Natural Medicines, Jiangsu Key Laboratory of Carcinogenesis and Intervention, School of Basic Medicine and Clinical Pharmacy, China Pharmaceutical University, Nanjing, 211198, China
| | - Yan-Ran Bi
- State Key Laboratory of Natural Medicines, Jiangsu Key Laboratory of Carcinogenesis and Intervention, School of Basic Medicine and Clinical Pharmacy, China Pharmaceutical University, Nanjing, 211198, China
| | - Nan Jiang
- State Key Laboratory of Natural Medicines, Jiangsu Key Laboratory of Carcinogenesis and Intervention, School of Basic Medicine and Clinical Pharmacy, China Pharmaceutical University, Nanjing, 211198, China
| | - Yin He
- State Key Laboratory of Natural Medicines, Jiangsu Key Laboratory of Carcinogenesis and Intervention, School of Basic Medicine and Clinical Pharmacy, China Pharmaceutical University, Nanjing, 211198, China
| | - Hong-Mei Li
- State Key Laboratory of Natural Medicines, Jiangsu Key Laboratory of Carcinogenesis and Intervention, School of Basic Medicine and Clinical Pharmacy, China Pharmaceutical University, Nanjing, 211198, China
- State Key Laboratory of Natural Medicines, Laboratory of Molecular Design and Drug Discovery, School of Science, China Pharmaceutical University, Nanjing, 211198, China
| | - Shui Wang
- Division of Breast Oncology, The First Affiliated Hospital, Nanjing Medical University, Nanjing, 210036, China
| | - Hui Xie
- Division of Breast Oncology, The First Affiliated Hospital, Nanjing Medical University, Nanjing, 210036, China
| | - Bao-An Chen
- Division of Hematology and Oncology, The Affiliated Zhong-Da Hospital, Southeast University, Nanjing, 210009, China
| | - Xiao-Sheng Wang
- State Key Laboratory of Natural Medicines, Jiangsu Key Laboratory of Carcinogenesis and Intervention, School of Basic Medicine and Clinical Pharmacy, China Pharmaceutical University, Nanjing, 211198, China
| | - Stephen J Weiss
- The Life Sciences Institute, Rogel Cancer Center, Department of Internal Medicine, University of Michigan, Ann Arbor, MI, 48109, USA
| | - Tao Lu
- State Key Laboratory of Natural Medicines, Laboratory of Molecular Design and Drug Discovery, School of Science, China Pharmaceutical University, Nanjing, 211198, China
| | - Qing-Long Guo
- State Key Laboratory of Natural Medicines, Jiangsu Key Laboratory of Carcinogenesis and Intervention, School of Basic Medicine and Clinical Pharmacy, China Pharmaceutical University, Nanjing, 211198, China
| | - Zhao-Qiu Wu
- State Key Laboratory of Natural Medicines, Jiangsu Key Laboratory of Carcinogenesis and Intervention, School of Basic Medicine and Clinical Pharmacy, China Pharmaceutical University, Nanjing, 211198, China.
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Manzano-Núñez F, Arámbul-Anthony MJ, Galán Albiñana A, Leal Tassias A, Acosta Umanzor C, Borreda Gascó I, Herrera A, Forteza Vila J, Burks DJ, Noon LA. Insulin resistance disrupts epithelial repair and niche-progenitor Fgf signaling during chronic liver injury. PLoS Biol 2019; 17:e2006972. [PMID: 30695023 PMCID: PMC6368328 DOI: 10.1371/journal.pbio.2006972] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2018] [Revised: 02/08/2019] [Accepted: 01/08/2019] [Indexed: 02/07/2023] Open
Abstract
Insulin provides important information to tissues about feeding behavior and energy status. Defective insulin signaling is associated with ageing, tissue dysfunction, and impaired wound healing. In the liver, insulin resistance leads to chronic damage and fibrosis, but it is unclear how tissue-repair mechanisms integrate insulin signals to coordinate an appropriate injury response or how they are affected by insulin resistance. In this study, we demonstrate that insulin resistance impairs local cellular crosstalk between the fibrotic stroma and bipotent adult liver progenitor cells (LPCs), whose paracrine interactions promote epithelial repair and tissue remodeling. Using insulin-resistant mice deficient for insulin receptor substrate 2 (Irs2), we highlight dramatic impairment of proregenerative fibroblast growth factor 7 (Fgf7) signaling between stromal niche cells and LPCs during chronic injury. We provide a detailed account of the role played by IRS2 in promoting Fgf7 ligand and receptor (Fgfr2-IIIb) expression by the two cell compartments, and we describe an insulin/IRS2-dependent feed-forward loop capable of sustaining hepatic re-epithelialization by driving FGFR2-IIIb expression. Finally, we shed light on the regulation of IRS2 and FGF7 within the fibrotic stroma and show—using a human coculture system—that IRS2 silencing shifts the equilibrium away from paracrine epithelial repair in favor of fibrogenesis. Hence, we offer a compelling insight into the contribution of insulin resistance to the pathogenesis of chronic liver disease and propose IRS2 as a positive regulator of communication between cell types and the transition between phases of stromal to epithelial repair. “Insulin resistance” is a chronic state of reduced sensitivity to the effects of circulating insulin. It is one of the hallmarks of metabolic disease and a consequence of ageing, but insulin resistance is also observed in otherwise healthy individuals after severe trauma/hemorrhage/sepsis, suggesting that it plays a physiological role in modulating the response to injury. Defective insulin signals are linked to impaired wound healing, yet it remains unclear how systemic changes affect locally the cells that coordinate tissue repair. In this study, we used the liver to assess how insulin resistance impacts the injury response in mice. We provide proof of concept that insulin signals are locally integrated by the fibrotic microenvironment surrounding the adult liver stem cells during chronic injury, resulting in the increased expression of epithelial repair signals. Insulin also simultaneously primes stem cells to respond to these stromal growth factors, leading to an increased participation in epithelial repair. Insulin resistance disrupts this local paracrine circuit, resulting in a blunted epithelial response to chronic injury that exacerbates tissue damage. Our model highlights a potential role for insulin in switching the hepatic injury response from a stromal repair process to an epithelial repair process. To our knowledge, our data provide a new perspective from which to reassess how insulin resistance influences fibrosis, wound healing, and tissue remodeling during injury.
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Affiliation(s)
- Fátima Manzano-Núñez
- CIBERDEM (Centro de Investigación Biomédica en Red de Diabetes y Enfermedades Metabólicas Asociadas), Madrid, Spain
- Centro de Investigación Príncipe Felipe, Valencia, Spain
| | - María José Arámbul-Anthony
- CIBERDEM (Centro de Investigación Biomédica en Red de Diabetes y Enfermedades Metabólicas Asociadas), Madrid, Spain
- Centro de Investigación Príncipe Felipe, Valencia, Spain
| | | | | | - Carlos Acosta Umanzor
- CIBERDEM (Centro de Investigación Biomédica en Red de Diabetes y Enfermedades Metabólicas Asociadas), Madrid, Spain
- Centro de Investigación Príncipe Felipe, Valencia, Spain
| | - Irene Borreda Gascó
- Instituto Valenciano de Patología, Universidad Católica de Valencia San Vicente Màrtir, Valencia, Spain
| | | | - Jerónimo Forteza Vila
- Centro de Investigación Príncipe Felipe, Valencia, Spain
- Instituto Valenciano de Patología, Universidad Católica de Valencia San Vicente Màrtir, Valencia, Spain
| | - Deborah J. Burks
- CIBERDEM (Centro de Investigación Biomédica en Red de Diabetes y Enfermedades Metabólicas Asociadas), Madrid, Spain
- Centro de Investigación Príncipe Felipe, Valencia, Spain
| | - Luke A. Noon
- CIBERDEM (Centro de Investigación Biomédica en Red de Diabetes y Enfermedades Metabólicas Asociadas), Madrid, Spain
- Centro de Investigación Príncipe Felipe, Valencia, Spain
- * E-mail:
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21
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Yang L, Zhang D, Wu H, Xie S, Zhang M, Zhang B, Tang S. Basic Fibroblast Growth Factor Influences Epidermal Homeostasis of Living Skin Equivalents through Affecting Fibroblast Phenotypes and Functions. Skin Pharmacol Physiol 2018; 31:229-237. [PMID: 29847822 DOI: 10.1159/000488992] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2017] [Accepted: 04/04/2018] [Indexed: 02/05/2023]
Abstract
AIMS To elucidate the possible mechanisms of how basic fibroblast growth factor (bFGF) influences epidermal homeostasis in a living skin equivalent (LSE) model. METHODS Several wound healing-related growth factors were analyzed at protein and mRNA levels for dermal fibroblasts of induced alpha-smooth muscle actin (α-SMA)-positive or α-SMA-negative phenotypes. During culturing an LSE model by seeding normal human keratinocytes on a fibroblast-populated type I collagen gel, bFGF or neutralizing antibody for keratinocyte growth factor (KGF) was added to investigate its effects on fibroblast phenotypes and, subsequently, epidermal homeostasis by histology and immunohistochemistry. RESULTS The α-SMA-positive phenotype of fibroblasts induced by transforming growth factor beta-1 (TGF-β1) markedly suppressed the expression of KGF and hepatocyte growth factor (HGF), and slightly upregulated vascular endothelial growth factor (VEGF) and TGF-β1 at mRNA and protein levels, compared with α-SMA-negative fibroblasts treated with bFGF. α-SMA expression of fibroblasts at the epidermal-mesenchymal junction of the LSEs was suppressed by the addition of bFGF, and a better-differentiated epidermis was presented. The abrogation of KGF from fibroblasts by the addition of the KGF neutralizing antibody disenabled the LSE culturing system to develop an epidermis. CONCLUSIONS bFGF, through affecting the phenotypes and functions of fibroblasts, especially KGF expression, influenced epidermal homeostasis in an LSE model.
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Affiliation(s)
- Lujun Yang
- Department of Burns and Plastic Surgery, Second Affiliated Hospital, Shantou University Medical College, Shantou, China
- Research Center for Translational Medicine, Shantou University Medical College, Shantou, China
| | - Dangui Zhang
- Research Center for Translational Medicine, Shantou University Medical College, Shantou, China
| | - Hongjuan Wu
- Department of Burns and Plastic Surgery, Shaanxi Provincial People's Hospital, Xi'an, China
| | - Sitian Xie
- Department of Burns and Plastic Surgery, Second Affiliated Hospital, Shantou University Medical College, Shantou, China
| | - Mingjun Zhang
- Department of Burns and Plastic Surgery, Second Affiliated Hospital, Shantou University Medical College, Shantou, China
| | - Bingna Zhang
- Research Center for Translational Medicine, Shantou University Medical College, Shantou, China
| | - Shijie Tang
- Department of Burns and Plastic Surgery, Second Affiliated Hospital, Shantou University Medical College, Shantou, China
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22
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Xiang B, Chen L, Wang X, Zhao Y, Wang Y, Xiang C. Transplantation of Menstrual Blood-Derived Mesenchymal Stem Cells Promotes the Repair of LPS-Induced Acute Lung Injury. Int J Mol Sci 2017; 18:ijms18040689. [PMID: 28346367 PMCID: PMC5412275 DOI: 10.3390/ijms18040689] [Citation(s) in RCA: 83] [Impact Index Per Article: 11.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2017] [Revised: 03/07/2017] [Accepted: 03/20/2017] [Indexed: 12/12/2022] Open
Abstract
Acute lung injury (ALI) and acute respiratory distress syndrome (ARDS) are associated with high morbidity and mortality. Menstrual blood-derived stem cells (MenSCs) have been shown to be good therapeutic tools in diseases such as ovarian failure and cardiac fibrosis. However, relevant studies of MenSCs in ALI have not yet proceeded. We hypothesized that MenSC could attenuate the inflammation in lipopolysaccharide (LPS)-induced ALI and promote the repair of damaged lung. ALI model was induced by LPS in C57 mice, and saline or MenSCs were administered via tail vein after four hours. The MenSCs were subsequently detected in the lungs by a live imaging system. The MenSCs not only improved pulmonary microvascular permeability and attenuated histopathological damage, but also mediated the downregulation of IL-1β and the upregulation of IL-10 in bronchoalveolar lavage fluid (BALF) and the damaged lung. Immunohistochemistry revealed the increased expression of proliferating cell nuclear antigen (PCNA) and the reduced expression of caspase-3 indicating the beneficial effect of MenSCs. Keratinocyte growth factor (KGF) was also upregulated after MenSCs administrated. As shown using transwell co-culture, the MenSCs also could improve the viability of BEAS-2B cells and inhibit LPS-induced apoptosis. These findings suggest that MenSC-based therapies could be promising strategies for treating ALI.
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Affiliation(s)
- Bingyu Xiang
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou 310027, China.
| | - Lu Chen
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou 310027, China.
| | - Xiaojun Wang
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou 310027, China.
| | - Yongjia Zhao
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou 310027, China.
| | - Yanling Wang
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou 310027, China.
| | - Charlie Xiang
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou 310027, China.
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23
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Zhou WJ, Hou XX, Wang XQ, Li DJ. Fibroblast Growth Factor 7 Regulates Proliferation and Decidualization of Human Endometrial Stromal Cells via ERK and JNK Pathway in an Autocrine Manner. Reprod Sci 2017; 24:1607-1619. [PMID: 28270036 DOI: 10.1177/1933719117697122] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Decidualization is an essential activity of the endometrium in pregnancy, but the molecular mechanisms involving the initiation and maintenance have not yet been clarified. In the present study, we examined the expression of fibroblast growth factor 7 (FGF7) in endometria, normal decidua, and abortion decidua from miscarriage by immunohistochemistry. We analyzed the expression of FGF7 and FGFR2 and the levels of phosphorylated extracellular signal-regulated kinases (ERKs), c-Jun N-terminal kinase (JNK) in endometrial stromal cells (ESCs), and decidual stromal cells (DSCs) from early pregnancy or miscarriage by In-Cell Western assay. The effect of FGF7 on the proliferation of decidualized ESCs was determined by bromodeoxyuridine proliferation assay. Our results show that the expression of FGF7 protein in the normal decidua is obviously higher than that of the endometrium and the abortion decidua, and the expression of FGF7 in the abortion decidua was still higher than that in the endometrium. The FGF7 expression in ESCs is significantly increased after stimulation with a combination of progesterone and 17β-estradiol or 8-bromoadenosine 3',5'-cyclic monophosphate for 12 days. The expression of FGF7 and FGFR2 and the levels of phosphorylated ERK and JNK in DSCs from normal decidua are markedly higher compared with that in ESCs from the endometrium, and the DSCs from abortion decidua had lower expression than DSCs from normal decidua but still higher than ESCs from the endometrium. Our results suggest that FGF7 may stimulate ESCs proliferation and insulin-like growth factor-binding protein 1 and prolactin expressions through ERK and JNK signal pathways in an autocrine manner.
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Affiliation(s)
- Wen-Jie Zhou
- 1 Obstetrics and Gynecology Hospital of Fudan University, Shanghai, China
| | - Xin-Xin Hou
- 1 Obstetrics and Gynecology Hospital of Fudan University, Shanghai, China
| | - Xiao-Qiu Wang
- 1 Obstetrics and Gynecology Hospital of Fudan University, Shanghai, China
| | - Da-Jin Li
- 1 Obstetrics and Gynecology Hospital of Fudan University, Shanghai, China
- 2 Department of Obstetrics and Gynecology, Hainan Medical College Affiliated Hospital, Haikou, China
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Abstract
Glucocorticoid induction of pulmonary surfactant involves a mesenchyme-derived protein first characterized in 1978 by Smith and termed fibroblast-pneumocyte factor (FPF). Despite a number of agents having been postulated as being FPF, its identity has remained obscure. In the past decade, three strong candidates for FPF have arisen. This review examines the evidence that keratinocyte growth factor (KGF), leptin or neuregulin-1β (NRG-1β) act as FPF or components of it. As with FPF production, glucocorticoids enhance the concentration of each of these agents in fibroblast-conditioned media. Moreover, each stimulates the synthesis of surfactant-associated phospholipids and proteins in type II pneumocytes. Further, some have unique activities, for example, KGF also minimizes lung injury through enhanced epithelial cell proliferation and NRG-1β enhances surfactant phospholipid secretion and β-adrenergic receptor activity in type II cells. However, even though these agents have attributes in common with FPF, it is inappropriate to specify any one of these agents as FPF. Rather, it appears that each contributes to separate mesenchymal-epithelial signaling mechanisms involved in different aspects of lung development. Given that the production of pulmonary surfactant is essential for postnatal survival, it is reasonable to suggest that several mechanisms independently regulate surfactant synthesis.
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Affiliation(s)
- George King
- School of Veterinary and Life Sciences, Murdoch University, Perth, Western Australia
| | - Megan E. Smith
- Graduate Program in Cell, Molecular and Developmental Biology, Department of Pediatrics, Sackler School of Graduate Biomedical Studies, Tufts University, Boston, MA, USA
| | - Max H. Cake
- School of Veterinary and Life Sciences, Murdoch University, Perth, Western Australia
| | - Heber C. Nielsen
- Graduate Program in Cell, Molecular and Developmental Biology, Department of Pediatrics, Sackler School of Graduate Biomedical Studies, Tufts University, Boston, MA, USA
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25
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Al-Hamilly NS, Radwan LRS, Abdul-Rahman M, Mourad MI, Grawish ME. Biological roles of KGF, CTGF and TGF-β in cyclosporine-A- and phenytoin- induced gingival overgrowth: A comparative experimental animal study. Arch Oral Biol 2016; 66:38-43. [PMID: 26894526 DOI: 10.1016/j.archoralbio.2016.02.006] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2015] [Revised: 02/03/2016] [Accepted: 02/04/2016] [Indexed: 02/07/2023]
Affiliation(s)
| | | | | | - Mohamed I Mourad
- Oral Pathology, Faculty of Dentistry, Mansoura University, Egypt
| | - Mohammed E Grawish
- Oral Biology, Faculty of Dentistry, Mansoura University, Egypt; Oral Biology, Faculty of Oral and Dental Medicine, Delta University for Science and Technology, Gamasa, Mansoura, Egypt.
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Abstract
As the primary site of T-cell development, the thymus plays a key role in the generation of a strong yet self-tolerant adaptive immune response, essential in the face of the potential threat from pathogens or neoplasia. As the importance of the role of the thymus has grown, so too has the understanding that it is extremely sensitive to both acute and chronic injury. The thymus undergoes rapid degeneration following a range of toxic insults, and also involutes as part of the aging process, albeit at a faster rate than many other tissues. The thymus is, however, capable of regenerating, restoring its function to a degree. Potential mechanisms for this endogenous thymic regeneration include keratinocyte growth factor (KGF) signaling, and a more recently described pathway in which innate lymphoid cells produce interleukin-22 (IL-22) in response to loss of double positive thymocytes and upregulation of IL-23 by dendritic cells. Endogenous repair is unable to fully restore the thymus, particularly in the aged population, and this paves the way toward the need for exogenous strategies to help regenerate or even replace thymic function. Therapies currently in clinical trials include KGF, use of the cytokines IL-7 and IL-22, and hormonal modulation including growth hormone administration and sex steroid inhibition. Further novel strategies are emerging in the preclinical setting, including the use of precursor T cells and thymus bioengineering. The use of such strategies offers hope that for many patients, the next regeneration of their thymus is a step closer.
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Affiliation(s)
- Mohammed S Chaudhry
- Immunology Program, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Enrico Velardi
- Immunology Program, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Jarrod A Dudakov
- Immunology Program, Memorial Sloan Kettering Cancer Center, New York, NY, USA
- Program in Immunology, Clinical Research Division, Fred Hutchinson Cancer Research Center, Seattle, WA, USA
| | - Marcel R M van den Brink
- Immunology Program, Memorial Sloan Kettering Cancer Center, New York, NY, USA
- Department of Medicine, Memorial Sloan Kettering Cancer Center, New York, NY, USA
- Department of Immunology and Microbial Pathogenesis, Weill Cornell Medical College, New York, NY, USA
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27
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Schumacher JD, Guo GL. Regulation of Hepatic Stellate Cells and Fibrogenesis by Fibroblast Growth Factors. Biomed Res Int 2016; 2016:8323747. [PMID: 27699175 PMCID: PMC5028827 DOI: 10.1155/2016/8323747] [Citation(s) in RCA: 46] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/06/2016] [Accepted: 08/03/2016] [Indexed: 12/15/2022]
Abstract
Fibroblast growth factors (FGFs) are a family of growth factors critically involved in developmental, physiological, and pathological processes, including embryogenesis, angiogenesis, wound healing, and endocrine functions. In the liver, several FGFs are produced basally by hepatocytes and hepatic stellate cells (HSCs). Upon insult to the liver, expression of FGFs in HSCs is greatly upregulated, stimulating hepatocyte regeneration and growth. Various FGF isoforms have also been shown to directly induce HSC proliferation and activation thereby enabling autocrine and paracrine regulation of HSC function. Regulation of HSCs by the endocrine FGFs, namely, FGF15/19 and FGF21, has also recently been identified. With the ability to modulate HSC proliferation and transdifferentiation, targeting FGF signaling pathways constitutes a promising new therapeutic strategy to treat hepatic fibrosis.
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Affiliation(s)
- Justin D. Schumacher
- Department of Pharmacology and Toxicology, Rutgers University, Piscataway, NJ 08854, USA
| | - Grace L. Guo
- Department of Pharmacology and Toxicology, Rutgers University, Piscataway, NJ 08854, USA
- *Grace L. Guo:
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Zhu Z, Hong Y, Wang Y, He G, Ye S. [The significance of keratinocyte in hyperproliferation of middle ear cholesteatoma]. Lin Chuang Er Bi Yan Hou Tou Jing Wai Ke Za Zhi 2016; 30:139-143. [PMID: 27192911] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
OBJECTIVE In order to investigate the interaction between the cytokines and keratinocyte and determine the role of cytokines in hyperproliferative of chronic otitis media with cholesteatoma, we observe the expression of matrix metalloproteinase 9 (MMP9), vascular endothelial growth factor (VEGF), keratinocyte growth factor (KGF) and its receptor (KGFR) in middle ear cholesteatoma. METHOD We examined the expression of MMP9, VEGF, KGF, KGFR and Ki-67 by immunohistochemistry in 50 specimens from chronic otitis media with cholesteatoma and 15 specimens from the normal skin of external auditory meatus. Ki-67 as an evaluation of cholesteatoma proliferation markers were used to detect the keratinocyte proliferative activity. RESULT (1) The expression of VEGF and MMP9 in cholesteatoma specimens was higher than normal skin, and the difference was statistically significant (t = 4.914, P < 0.01; t = 3.284, P < 0.01). (2) The expression of KGF and KGFR in middle ear tissues was higher than normal skin, and the difference was statistically significant (t = 4.814, P < 0.01; t = 3.104, P < 0.01); The expression of KGF and KGFR increased, and the expression of Ki-67 also correspondly increased in the cholesteatoma. (3) In the tissue MMP9 and VEGF were positive. Mean optical density increased as well. KGF expression also increased accordingly. CONCLUSION MMP9, VEGF, KGF and KGFR proteins played an important role in hyperproliferation of cholesteatoma tissues. VEGF, MMP9 and KGF had a synergistic effect in hyperproliferation of cholesteatoma tissues.
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Xu Y, Hong Y, Xu M, Ma K, Fu X, Zhang M, Wang G. Role of Keratinocyte Growth Factor in the Differentiation of Sweat Gland-Like Cells From Human Umbilical Cord-Derived Mesenchymal Stem Cells. Stem Cells Transl Med 2015; 5:106-16. [PMID: 26574554 PMCID: PMC4704873 DOI: 10.5966/sctm.2015-0081] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2015] [Accepted: 09/16/2015] [Indexed: 12/23/2022] Open
Abstract
The role of keratinocyte growth factor (KGF) in human umbilical cord-derived mesenchymal stem cell (hUC-MSC) differentiation remains unknown. Building on previous work, the authors found KGF expression in sweat gland-like cells (SGCs) and determined that recombinant human KGF could induce hUC-MSC differentiation into SGCs. These differentiated SGCs were applied to a mouse burn model and sweat glands were regenerated. These cells may have potential therapeutic application for regeneration of destroyed sweat glands and injured skin. Human umbilical cord-derived mesenchymal stem cells (hUC-MSCs) have higher proliferation potency and lower immune resistance than human bone marrow MSCs and can differentiate into various functional cells. Many regulatory factors, including keratinocyte growth factor (KGF), are involved in the development of skin and cutaneous appendages. Although KGF is important in wound healing, the role of KGF in hUC-MSC differentiation remains unknown. In our previous work, we found the mixing medium (nine parts of basic sweat-gland [SG] medium plus one part of conditioned heat-shock SG medium) could induce hUC-MSC differentiation to sweat gland-like cells (SGCs). In this study, we further improved the inducing medium and determined the effects of KGF in hUC-MSC differentiation. We found KGF expression in the SGCs and that recombinant human KGF could induce hUC-MSC differentiation into SGCs, suggesting KGF plays a pivotal role in promoting hUC-MSC differentiation to SGCs. Furthermore, the SGCs differentiated from hUC-MSCs were applied to severely burned skin of the paw of an in vivo severe combined immunodeficiency mouse burn model. Burned paws treated with SGCs could regenerate functional sparse SGs 21 days after treatment; the untreated control paws could not. Collectively, these results demonstrated that KGF is a critical growth factor for SGC differentiation from hUC-MSCs and the differentiated SGCs from hUC-MSCs may have a potential therapeutic application for regeneration of destroyed SGs and injured skin. Significance There is growing evidence demonstrating a potential therapeutic application of human umbilical cord-derived mesenchymal stem cells (hUC-MSCs) in injured skin. In the current study, conditioned media and chemically defined media with recombinant human keratinocyte growth factor (KGF) could induce hUC-MSC differentiation into sweat gland-like cells (SGCs). Moreover, the differentiated SGCs from hUC-MSCs could regenerate functional sparse sweat glands in a mouse burn model, which provides further insight into the mechanisms of the role of KGF and a potential therapeutic application of differentiated SGCs for regeneration of destroyed sweat glands and injured skin.
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Affiliation(s)
- Yongan Xu
- Department of Emergency Medicine, Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, People's Republic of China Institute of Emergency Medicine, Zhejiang University, Hangzhou, Zhejiang, People's Republic of China Wound Healing and Cell Biology Laboratory, Burns Institute, First Affiliated Hospital (304th Hospital), General Hospital of PLA, Beijing, People's Republic of China Department of Surgery, State University of New York Upstate Medical University, Syracuse, New York, USA
| | - Yucai Hong
- Department of Emergency Medicine, Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, People's Republic of China Institute of Emergency Medicine, Zhejiang University, Hangzhou, Zhejiang, People's Republic of China
| | - Mengyan Xu
- Women's Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, People's Republic of China
| | - Kui Ma
- Wound Healing and Cell Biology Laboratory, Burns Institute, First Affiliated Hospital (304th Hospital), General Hospital of PLA, Beijing, People's Republic of China
| | - Xiaobing Fu
- Wound Healing and Cell Biology Laboratory, Burns Institute, First Affiliated Hospital (304th Hospital), General Hospital of PLA, Beijing, People's Republic of China
| | - Mao Zhang
- Department of Emergency Medicine, Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, People's Republic of China Institute of Emergency Medicine, Zhejiang University, Hangzhou, Zhejiang, People's Republic of China
| | - Guirong Wang
- Department of Surgery, State University of New York Upstate Medical University, Syracuse, New York, USA
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Alibardi L. Immunolocalization of FGF7 (KGF) in the regenerating tail of lizard suggests it is involved in the differentiation of the epidermis. Acta Histochem 2015; 117:718-24. [PMID: 26508592 DOI: 10.1016/j.acthis.2015.09.003] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2015] [Revised: 09/01/2015] [Accepted: 09/15/2015] [Indexed: 11/28/2022]
Abstract
Previous studies showed that Fibroblast Growth Factors (FGF) 1 and 2 are localized in the tissues of the regenerating tail in lizards. In the present immunofluorescence and immunoblotting study we have specifically analyzed the presence and distribution of FGF7 (keratinocyte growth factor) in the regenerating tissues of the tail. FGF7 immunoreactivity is mainly detected in the regenerating epidermis and in sparse fibroblasts of the underlying dermis of the regenerating scales while it is weaker in the other tissues such as the apical ependymal cells and early regenerating muscles. Immunolabeled mesenchymal fibroblasts are frequently present under the epidermis of the forming outer scale surface, a localization that might be connected to beta-cell differentiation in this region of the scale. FGF7 immunolabeling is also seen in differentiating beta-keratinocytes of the beta-layer in the regenerating scales. The present immunofluorescent observations suggest that FGF7 is specifically utilized as a paracrine factor during the process of differentiation of the epidermal layers in the regenerating scales and in particular for beta-cells differentiation.
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Affiliation(s)
- Lorenzo Alibardi
- Comparative Histolab and Dipartimento di Biologia, Universita' di Bologna, via Selmi 3, Bologna, Italy
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Jiang Y, Ju Z, Zhang J, Liu X, Tian J, Mu G. Effects of insulin-like growth factor 2 and its receptor expressions on corneal repair. Int J Clin Exp Pathol 2015; 8:10185-10191. [PMID: 26617727 PMCID: PMC4637542] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Received: 06/23/2015] [Accepted: 07/27/2015] [Indexed: 06/05/2023]
Abstract
Limbal stem cell (LSC) on the basal layer of cornea plays an important role in the epithelial repair after corneal injury as it can proliferate, differentiate and migrate into injury sites under the direction of cytokines. This study explored the signaling pathway and cellular mechanism between corneal epithelial cells LSC, on a mouse model with mechanic corneal injury. Ipsilateral corneal mechanic injury model was prepared on mice using the contralateral eye as the control. Tissues from both central and peripheral regions of cornea were collected, cultured and quantified for expression of various cytokines including epidermal growth factor (EGF), fibroblast growth factor-β (FGF-β), heparin-like growth factor (HGF), keratinocyte growth factor (KGF), transforming growth factor-β1 (TGF-β1), IGF-1 and IGF-2. The effects of these factors on the differentiation of LSC and fibroblasts were also studied. Most of those cytokines had elevated gene expressions after the corneal injury. Among those IGF-2 had significantly increased expression, along with the high expression of IGF-2 receptor in corneal peripheral cells. IGF-2 also induced the differentiation of LSC into keratin-12-positive cells. Further studies showed the prominent expression of α-actin in injured tissues, suggesting the potential transformation of fibroblasts into myofibroblasts. Both IGF-2 and its receptor had elevated expressions after corneal injury. They may facilitate the transformation of LSC into epithelial cells, in addition to the role in transformation from fibroblasts to myofibroblasts.
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Affiliation(s)
- Yanyan Jiang
- Department of Ophthalmology, Shandong Provincial Hospital Affiliated to Shandong UniversityJinan 250021, China
- Department of Ophthalmology, Weifang People’s HospitalWeifang 261041, China
| | - Zhicai Ju
- Department of Ophthalmology, Weifang People’s HospitalWeifang 261041, China
| | - Junfu Zhang
- Department of Ophthalmology, Weifang People’s HospitalWeifang 261041, China
| | - Xinchang Liu
- Department of Ophthalmology, Weifang People’s HospitalWeifang 261041, China
| | - Jie Tian
- Department of Ophthalmology, Weifang People’s HospitalWeifang 261041, China
| | - Guoying Mu
- Department of Ophthalmology, Shandong Provincial Hospital Affiliated to Shandong UniversityJinan 250021, China
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Liu X, Feng Z, Tian C, Kong X, Wu Y, Lv C. Effect of keratinocyte growth factor on growth and transdifferentiation of primary alveolar epithelial type II cells. Turk J Med Sci 2015; 45:251-60. [PMID: 26084112 DOI: 10.3906/sag-1311-101] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022] Open
Abstract
BACKGROUND/AIM To investigate the effects of keratinocyte growth factor (KGF) on the growth and transdifferentiation of primary alveolar epithelial type II cells (AECIIs). MATERIALS AND METHODS The number of primary AECIIs, their viability, and cell cycle and apoptosis were studied under KGF treatment using a hemocytometer, trypan blue exclusion, and flow cytometry, respectively. Positive expressions of surfactant protein C (SP-C), aquaporin 5 (AQP5), and thyroid transcription factor 1(TTF-1) were examined with indirect immunofluorescence; mRNA levels of SP-C, AQP5, and TTF-1 were determined by polymerase chain reaction. RESULTS In response to KGF treatment, cell numbers were significantly increased, more cells were blocked in the S phase, and fewer cells were apoptotic or necrotic on days 2 and 4, but there was little effect on cell viability. In addition, KGF treatment resulted in higher levels of SP-C on days 2 and 8 while lowering them on day 4, higher levels of AQP5 on day 4 while lowering them on day 8, and higher levels of TTF-1 on days 2, 6, and 8. CONCLUSION KGF treatment promoted proliferation of AECIIs, inhibited cell apoptosis, promoted transdifferentiation of AECIIs, and induced alveolar epithelial type I cells to revert to AECIIs.
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de Araújo AA, Varela H, de Medeiros CACX, de Castro Brito GA, de Lima KC, de Moura LM, de Araújo RF. Azilsartan reduced TNF-α and IL-1β levels, increased IL-10 levels and upregulated VEGF, FGF, KGF, and TGF-α in an oral mucositis model. PLoS One 2015; 10:e0116799. [PMID: 25689279 PMCID: PMC4331549 DOI: 10.1371/journal.pone.0116799] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2014] [Accepted: 12/14/2014] [Indexed: 12/31/2022] Open
Abstract
Oral mucositis (OM) is a common complication of treatments for head and neck cancer, particularly radiotherapy with or without chemotherapy. OM is characterised by oral erythema, ulceration, and pain. The aim of this study was to evaluate the effect of azilsartan (AZT), an angiotensin II receptor antagonist, on 5-fluorouracil (5-FU)-induced oral mucositis (OM) in Syrian hamsters. OM was induced by the intraperitoneal administration of 5-FU on experimental days 1 (60 mg/Kg) and 2 (40 mg/Kg). Animals were pretreated with oral AZT (1, 5, or 10 mg/kg) or vehicle 30 min before 5-FU injection and daily until day 10. Experimental treatment protocols were approved by the Animal Ethics Committee Use/CEUA (Number 28/2012) of the UFRN. Macroscopic analysis and cheek pouch samples were removed for histopathologic analysis. Myeloperoxidase (MPO), Malonyldialdehyde (MDA), interleukin-1 beta (IL-1β), interleukin-10 (IL-10), and tumour necrosis factor-alpha (TNF-α) were analysed by Enzyme Linked Immuno Sorbent Assay (ELISA). Vascular endothelial growth factor (VEGF), fibroblast growth factor (FGF), keratinocyte growth factor (KGF), and transforming growth factor (TGF)-α were measured by immunohistochemistry. Analysis of variance followed by Bonferroni's test was used to calculate the means of intergroup differences (p ≤ 0.05). Treatment with 1 mg/kg AZT reduced levels MPO (p<0.01), MDA (p<0.5) and histological inflammatory cell infiltration, and increased the presence of granulation tissue. AZT treatment at 1 mg/kg reduced the TNF-α (p<0.05) and IL-1β (p<0.05) levels, increased the cheek pouch levels of IL-10 (p<0.01), and upregulated VEGF, FGF, KGF, and TGF-α. Administration of AZT at higher doses (5 and 10 mg/kg) did not significantly reverse the OM. AZT at a dose of 1 mg/kg prevented the mucosal damage and inflammation associated with 5-FU-induced OM, increasing granulation and tissue repair.
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Affiliation(s)
- Aurigena Antunes de Araújo
- Postgraduate Programs in Public Health and Pharmaceutical Science, Department of Biophysics and Pharmacology, Federal University of Rio Grande Norte (UFRN), Natal, RN, Brazil
- * E-mail:
| | - Hugo Varela
- Postgraduate Program in Public Health, UFRN, Natal, RN, Brazil
| | | | - Gerly Anne de Castro Brito
- Postgraduate Program in Pharmacology and Morphology, Department of Morphology, Federal University of Ceará (UFC), Fortaleza, CE, Brazil
| | - Kênio Costa de Lima
- Postgraduate Program in Public Health and Health Science, Department of Dentistry, UFRN, Natal, RN, Brazil
| | - Ligia Moreno de Moura
- Postgraduate Program in Public Health, UFRN; and University Potiguar (UnP), Natal, RN, Brazil
| | - Raimundo Fernandes de Araújo
- Postgraduate Program in Functional & Structural Biology and Health Science, Department of Morphology, UFRN, Natal, RN, Brazil
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Affiliation(s)
- Marcel R M van den Brink
- Department of Medicine, Adult Bone Marrow Transplant Service, Memorial Sloan Kettering Cancer Center, New York, NY; Weill Cornell Medical College, New York, NY; Immunology Program, Memorial Sloan Kettering Cancer Center, New York, NY; and
| | - Enrico Velardi
- Immunology Program, Memorial Sloan Kettering Cancer Center, New York, NY; and Division of Pharmacology, Department of Medicine, University of Perugia, Perugia, Italy
| | - Miguel-Angel Perales
- Department of Medicine, Adult Bone Marrow Transplant Service, Memorial Sloan Kettering Cancer Center, New York, NY; Weill Cornell Medical College, New York, NY
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Carter E, Miron-Buchacra G, Goldoni S, Danahay H, Westwick J, Watson ML, Tosh D, Ward SG. Phosphoinositide 3-kinase alpha-dependent regulation of branching morphogenesis in murine embryonic lung: evidence for a role in determining morphogenic properties of FGF7. PLoS One 2014; 9:e113555. [PMID: 25460003 PMCID: PMC4251986 DOI: 10.1371/journal.pone.0113555] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2014] [Accepted: 10/29/2014] [Indexed: 11/22/2022] Open
Abstract
Branching morphogenesis is a critical step in the development of many epithelial organs. The phosphoinositide-3-kinase (PI3K) pathway has been identified as a central component of this process but the precise role has not been fully established. Herein we sought to determine the role of PI3K in murine lung branching using a series of pharmacological inhibitors directed at this pathway. The pan-class I PI3K inhibitor ZSTK474 greatly enhanced the branching potential of whole murine lung explants as measured by an increase in the number of terminal branches compared with controls over 48 hours. This enhancement of branching was also observed following inhibition of the downstream signalling components of PI3K, Akt and mTOR. Isoform selective inhibitors of PI3K identified that the alpha isoform of PI3K is a key driver in branching morphogenesis. To determine if the effect of PI3K inhibition on branching was specific to the lung epithelium or secondary to an effect on the mesenchyme we assessed the impact of PI3K inhibition in cultures of mesenchyme-free lung epithelium. Isolated lung epithelium cultured with FGF7 formed large cyst-like structures, whereas co-culture with FGF7 and ZSTK474 induced the formation of defined branches with an intact lumen. Together these data suggest a novel role for PI3K in the branching program of the murine embryonic lung contradictory to that reported in other branching organs. Our observations also point towards PI3K acting as a morphogenic switch for FGF7 signalling.
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Affiliation(s)
- Edward Carter
- Department of Pharmacy and Pharmacology, University of Bath, Bath, United Kingdom
- Centre for Regenerative Medicine, Department of Biology and Biochemistry, University of Bath, Bath, United Kingdom
| | - Gabriela Miron-Buchacra
- Centre for Regenerative Medicine, Department of Biology and Biochemistry, University of Bath, Bath, United Kingdom
| | - Silvia Goldoni
- Novartis Institute of Biomedical Research, Horsham, United Kingdom
| | - Henry Danahay
- Novartis Institute of Biomedical Research, Horsham, United Kingdom
| | - John Westwick
- Novartis Institute of Biomedical Research, Horsham, United Kingdom
| | - Malcolm L. Watson
- Department of Pharmacy and Pharmacology, University of Bath, Bath, United Kingdom
| | - David Tosh
- Centre for Regenerative Medicine, Department of Biology and Biochemistry, University of Bath, Bath, United Kingdom
| | - Stephen G. Ward
- Department of Pharmacy and Pharmacology, University of Bath, Bath, United Kingdom
- * E-mail:
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Deng X, Chen F, Liu J, Zhou Z, Jia C. [Expression of coxsackie-adenovirus receptor in keratinocytes of mouse skin after heat stimulation and the effect of coxsackie-adenovirus receptor on dendritic epidermal T lymphocytes]. Zhonghua Shao Shang Za Zhi 2014; 30:40-45. [PMID: 24684988] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
OBJECTIVE To study the influence of heat stimulation on expression of coxsackie-adenovirus receptor (CAR) in keratinocytes (KCs) of mouse skin and the effect of CAR on production of cell growth factors by dendritic epidermal T lymphocytes (DETCs). METHODS (1) Twenty BALB/c mice were divided into heat stimulation group (HS) and control group (C) according to the random number table, with 10 mice in each group. Mice in group HS were inflicted with scald milder than superficial-thickness by dressing wet hot gauze, which had been soaked in 100°C hot water for 3 min, in the hair removed area on the back for 1 to 3 s, while mice in group C were sham injured by dressing a wet gauze which had been soaked in water of room temperature for 3 min in the hair removed area on the back for 1 to 3 s. Square full-thickness skin specimens measuring 2.0 cm × 2.0 cm in size were obtained from the center of the bare skin. The expression of CAR in skin tissue sections were detected by immunohistochemistry staining. The mRNA and protein expression levels of CAR in skin tissue sections were respectively determined by real-time fluorescent quantitation RT-PCR and Western blotting. (2) KCs were isolated and cultured from full-thickness skin obtained from the trunk of 2 fetal BALB/c mice, and they were divided into 2 groups according to the random number table, with 5 wells in each group. The cells in group HS and group C were respectively cultured in 42°C and 37°C, 5% CO2 incubator for 1 h, and then all the cells were cultured in 37 °, 5% CO2 incubator for 6 h. The apoptosis of the cells and their expression of CAR were detected by flow cytometer. (3) Five BALB/c mice were sacrificed, and full-thickness skin was obtained from the trunk. The DETCs were divided into 7 groups according to the random number table after being isolated and purified from the skin specimens. Cells in group C were cultured without any stimulation, and cells in the 0.5, 1.0, 2.0, 4.0, 8.0, and 16.0 mg/L CAR groups were respectively cultured with corresponding concentration of recombinant mice CAR nutrient solutions, with 5 wells in each group. The contents of insulin-like growth factor I (IGF-I) and keratinocyte growth factor (KGF) were determined with ELISA. Data were processed with independent samples t test and one-way analysis of variance. RESULTS (1) The immunohistochemistry staining showed that there was mild positive staining in the skin tissue sections of mice in group C, while the positive staining was more obvious in group HS. The positive staining was mainly located in KCs, hair follicles, and sweat gland epithelial cells, while no positive staining was observed in fibroblasts. The mRNA expression levels of CAR in skin tissue sections in group C and group HS were respectively 0.157 ± 0.027 and 0.773 ± 0.029. There was statistically significant difference between them (t = 3.052, P < 0.01). The protein expression levels of CAR in skin tissue sections in group C and group HS were respectively 0.23 ± 0.09 and 0.89 ± 0.14. There was statistically significant difference between them (t = 2.556, P < 0.05). (2) The apoptosis rates of KCs in group C and group HS were respectively (5.7 ± 1.3)% and (7.4 ± 1.7)% (t = 0.464, P > 0.05). The expression rates of CAR in KCs in group C and group HS were respectively (48 ± 6)% and (80 ± 8)%. There was statistically significant difference between them (t = 2.585, P < 0.05). (3) The contents of IGF-Iin culture supernatants in group C and 0.5, 1.0, 2.0, 4.0, 8.0, 16.0 mg/L CAR groups were respectively (23.1 ± 1.8), (22.5 ± 2.1), (31.2 ± 2.5), (39.7 ± 2.3), (61.8 ± 3.5), (45.1 ± 2.8), and (29.0 ± 2.0) µg/L. There was statistically significant difference among 7 groups (F = 3.414, P < 0.05). The contents of KGF in culture supernatants in group C and 0.5, 1.0, 2.0, 4.0, 8.0, 16.0 mg/L CAR groups were respectively (131 ± 9), (217 ± 12), (355 ± 21), (563 ± 21), (535 ± 34), (292 ± 20), and (245 ± 10) ng/L. There was statistically significant difference among 7 groups (F = 5.063, P < 0.01). CONCLUSIONS The expression of CAR in KCs would rise after HS. The optimum CAR concentration to increase IGF-I and KGF production in DETCs is low.
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Affiliation(s)
- Xiangdong Deng
- Graduate School, Medical College of Chinese PLA, Beijing 100039, China
| | - Fuxing Chen
- Graduate School, Medical College of Chinese PLA, Beijing 100039, China
| | - Junquan Liu
- Graduate School, Medical College of Chinese PLA, Beijing 100039, China
| | - Zhonghai Zhou
- Graduate School, Medical College of Chinese PLA, Beijing 100039, China
| | - Chiyu Jia
- Graduate School, Medical College of Chinese PLA, Beijing 100039, China.
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Choi JS, Jung SK, Jeon MH, Moon JN, Moon WS, Ji YH, Choi IS, Wook Son S. Effects of Lycopersicon esculentum extract on hair growth and alopecia prevention. J Cosmet Sci 2013; 64:429-443. [PMID: 24397881] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Accepted: 05/05/2013] [Indexed: 06/03/2023]
Abstract
To evaluate the potential hair growth-promoting activity and the expression of cell growth factors of Lycopersicon esculentum extracts, each 3% (w/w) of ethyl acetate extract (EAE), and supercritical CO2 extract (SCE) of L. esculentum and isolated lycopene Tween 80 solution (LTS) and test hair tonic (THT) containing LTS were applied on the dorsal skin of C57BL/6 mice, once a day for 4 weeks. At week 4, LTS and THT exhibited hair growth-promoting potential similar to that of 3% minoxidil as a positive control (PC). Further, in the LTS group, a significant increase of mRNA expression of vascular endothelial growth factor (VEGF), keratinocyte growth factor, and insulin-like growth factor-1 (IGF-1) was observed than PC, as well as the negative control (NC). In the THT group, increases in IGF-1 and decrease in VEGF and transforming growth factor-β expression were significant over the NC. In a histological examination in the THT group, the induction of anagen stage of hair follicles was faster than that of NC. In the Draize skin irritation study for THT, no observable edema or erythema was observed on all four sectors in the back skin after exposure for 24 or 72 h for any rabbit. Therefore, this study provides reasonable evidence that L. esculentum extracts promote hair growth and suggests that applications could be found in hair loss treatments without skin irritation at moderate doses.
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Affiliation(s)
- Jae-Suk Choi
- RIS Center, IACF Silla University, Busan 617-736, Republic of Korea (J.-S.C., I.S.C.), Department of Dermatology, Korea University Ansan Hospital, Ansan 425-701, Republic of Korea (S.K.J., Y.-H.J., S.W.S.), Department of R&D, Ecomine Co., Ltd, Busan 608-736, Republic of Korea (M.-H.J., J.-N.M., W.-S.M.), Department of Biological Science, Silla University, Busan 617-736, Republic of Korea (I.S.C.)
| | - Sung Kyu Jung
- RIS Center, IACF Silla University, Busan 617-736, Republic of Korea (J.-S.C., I.S.C.), Department of Dermatology, Korea University Ansan Hospital, Ansan 425-701, Republic of Korea (S.K.J., Y.-H.J., S.W.S.), Department of R&D, Ecomine Co., Ltd, Busan 608-736, Republic of Korea (M.-H.J., J.-N.M., W.-S.M.), Department of Biological Science, Silla University, Busan 617-736, Republic of Korea (I.S.C.)
| | - Min-Hee Jeon
- RIS Center, IACF Silla University, Busan 617-736, Republic of Korea (J.-S.C., I.S.C.), Department of Dermatology, Korea University Ansan Hospital, Ansan 425-701, Republic of Korea (S.K.J., Y.-H.J., S.W.S.), Department of R&D, Ecomine Co., Ltd, Busan 608-736, Republic of Korea (M.-H.J., J.-N.M., W.-S.M.), Department of Biological Science, Silla University, Busan 617-736, Republic of Korea (I.S.C.)
| | - Jin-Nam Moon
- RIS Center, IACF Silla University, Busan 617-736, Republic of Korea (J.-S.C., I.S.C.), Department of Dermatology, Korea University Ansan Hospital, Ansan 425-701, Republic of Korea (S.K.J., Y.-H.J., S.W.S.), Department of R&D, Ecomine Co., Ltd, Busan 608-736, Republic of Korea (M.-H.J., J.-N.M., W.-S.M.), Department of Biological Science, Silla University, Busan 617-736, Republic of Korea (I.S.C.)
| | - Woi-Sook Moon
- RIS Center, IACF Silla University, Busan 617-736, Republic of Korea (J.-S.C., I.S.C.), Department of Dermatology, Korea University Ansan Hospital, Ansan 425-701, Republic of Korea (S.K.J., Y.-H.J., S.W.S.), Department of R&D, Ecomine Co., Ltd, Busan 608-736, Republic of Korea (M.-H.J., J.-N.M., W.-S.M.), Department of Biological Science, Silla University, Busan 617-736, Republic of Korea (I.S.C.)
| | - Yi-Hwa Ji
- RIS Center, IACF Silla University, Busan 617-736, Republic of Korea (J.-S.C., I.S.C.), Department of Dermatology, Korea University Ansan Hospital, Ansan 425-701, Republic of Korea (S.K.J., Y.-H.J., S.W.S.), Department of R&D, Ecomine Co., Ltd, Busan 608-736, Republic of Korea (M.-H.J., J.-N.M., W.-S.M.), Department of Biological Science, Silla University, Busan 617-736, Republic of Korea (I.S.C.)
| | - In Soon Choi
- RIS Center, IACF Silla University, Busan 617-736, Republic of Korea (J.-S.C., I.S.C.), Department of Dermatology, Korea University Ansan Hospital, Ansan 425-701, Republic of Korea (S.K.J., Y.-H.J., S.W.S.), Department of R&D, Ecomine Co., Ltd, Busan 608-736, Republic of Korea (M.-H.J., J.-N.M., W.-S.M.), Department of Biological Science, Silla University, Busan 617-736, Republic of Korea (I.S.C.)
| | - Sang Wook Son
- RIS Center, IACF Silla University, Busan 617-736, Republic of Korea (J.-S.C., I.S.C.), Department of Dermatology, Korea University Ansan Hospital, Ansan 425-701, Republic of Korea (S.K.J., Y.-H.J., S.W.S.), Department of R&D, Ecomine Co., Ltd, Busan 608-736, Republic of Korea (M.-H.J., J.-N.M., W.-S.M.), Department of Biological Science, Silla University, Busan 617-736, Republic of Korea (I.S.C.)
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Li X, Liang L, Zhao P, Uchida K, Baba H, Huang H, Bai W, Bai L, Zhang M. The effects of adenoviral transfection of the keratinocyte growth factor gene on epidermal stem cells: an in vitro study. Mol Cells 2013; 36:316-21. [PMID: 24170090 PMCID: PMC3887989 DOI: 10.1007/s10059-013-0093-y] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2013] [Revised: 07/22/2013] [Accepted: 08/01/2013] [Indexed: 01/26/2023] Open
Abstract
Epidermal stem cells (ESCs) are characterized as slowcycling, multi-potent, and self-renewing cells that not only maintain somatic homeostasis but also participate in tissue regeneration and repair. To examine the feasibility of adenoviral vector-mediated keratinocyte growth factor (KGF) gene transfer into in vitro-expanded ESCs, ESCs were isolated from samples of human skin, cultured in vitro, and then transfected with recombinant adenovirus (Ad) carrying the human KGF gene (AdKGF) or green fluorescent protein gene (AdGFP). The effects of KGF gene transfer on cell proliferation, cell cycle arrest, cell surface antigen phenotype, and β-catenin expression were investigated. Compared to ESCs transfected with AdGFP, AdKGFtransfected ESCs grew well, maintained a high proliferative capacity in keratinocyte serum-free medium, and expressed high levels of β-catenin. AdKGF infection increased the number of ESCs in the G0/G1 phase and promoted ESCs entry into the G2/M phase, but had no effect on cell surface antigen phenotype (CD49f(+)/CD71(-)). The results suggest that KGF gene transfer can stimulate ESCs to grow and undergo cell division, which can be applied to enhance cutaneous wound healing.
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Affiliation(s)
- Xinping Li
- Department of Physical Medicine and Rehabilitation, Guangdong Geriatric Institute, Guangdong Academy of Medical Sciences and Guangdong General Hospital, Guangzhou, Guangdong Province 510080, China
| | - Ling Liang
- The First Clinical College of Jinan University, Guangzhou 510632, China
| | - Pin Zhao
- Changsha Medical University, Changsha 410219, China
| | - Kenzo Uchida
- Department of Orthopaedics and Rehabilitation Medicine, Fukui University Faculty of Medical Sciences, Eiheiji Matsuoka, Fukui 910-1193, Japan
| | - Hisatoshi Baba
- Department of Orthopaedics and Rehabilitation Medicine, Fukui University Faculty of Medical Sciences, Eiheiji Matsuoka, Fukui 910-1193, Japan
| | - Hong Huang
- School of Information, University of South Florida, USA
| | - Wenfang Bai
- Department of Physical Medicine and Rehabilitation, Guangdong Geriatric Institute, Guangdong Academy of Medical Sciences and Guangdong General Hospital, Guangzhou, Guangdong Province 510080, China
| | - Liming Bai
- Department of Physical Medicine and Rehabilitation, Guangdong Geriatric Institute, Guangdong Academy of Medical Sciences and Guangdong General Hospital, Guangzhou, Guangdong Province 510080, China
| | - Mingsheng Zhang
- Department of Physical Medicine and Rehabilitation, Guangdong Geriatric Institute, Guangdong Academy of Medical Sciences and Guangdong General Hospital, Guangzhou, Guangdong Province 510080, China
- The First Clinical College of Jinan University, Guangzhou 510632, China
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Miyashita H, Yokoo S, Yoshida S, Kawakita T, Yamagami S, Tsubota K, Shimmura S. Long-term maintenance of limbal epithelial progenitor cells using rho kinase inhibitor and keratinocyte growth factor. Stem Cells Transl Med 2013; 2:758-65. [PMID: 23981725 DOI: 10.5966/sctm.2012-0156] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023] Open
Abstract
Corneal epithelial stem cells are located in the limbus, the junction between the cornea and the conjunctiva. A limbal epithelium model in vitro would be useful for the study of epithelial stem cells, as well as improving the quality of cultivated epithelial sheets for the treatment of limbal stem cell deficiency. In this study, we succeeded in constructing a limbal epithelium-like structure that could be maintained for at least 5 months in vitro. We modified conventional medium by replacing epidermal growth factor with keratinocyte growth factor (KGF) and adding Y-27632, a rho kinase inhibitor. Using this medium, epithelial cells freshly isolated from human limbus were cocultured with human mesenchymal stem cell-derived feeder cells. Cells formed a stratified layer without air exposure, and both basal and suprabasal layers maintained their unique morphologies for up to 5 months. Basal layers expressed the progenitor marker p63 uniformly and K15 heterogeneously. Expressions of PAX6, K3, and K12 indicated that cell sheets underwent normal differentiation in the corneal epithelium lineage. Although medium was changed daily after day 7, cell debris was observed every day, suggesting that cell sheets underwent turnover. Furthermore, secondary colonies were observed from cells dissociated from 1-month and 3-month cultured sheets. In conclusion, human limbal epithelial cell sheet cultures with KGF and Y-27632 maintained stratification, high expression of both stem/progenitor markers and differentiation markers, and colony-forming cells long-term. This protocol may be useful as an in vitro limbal epithelial model for basic studies.
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Affiliation(s)
- Hideyuki Miyashita
- Department of Ophthalmology, Keio University School of Medicine, Tokyo, Japan
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Yang L, Engeland CG, Cheng B. Social isolation impairs oral palatal wound healing in sprague-dawley rats: a role for miR-29 and miR-203 via VEGF suppression. PLoS One 2013; 8:e72359. [PMID: 23951316 PMCID: PMC3739786 DOI: 10.1371/journal.pone.0072359] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2013] [Accepted: 07/15/2013] [Indexed: 12/23/2022] Open
Abstract
Objective To investigate the effects of social isolation on oral mucosal healing in rats, and to determine if wound-associated genes and microRNAs (miRNAs) may contribute to this response. Methods Rats were group housed or socially isolated for 4 weeks before a 3.5 mm wound was placed on the hard oral palate. Wound closure was assessed daily and tissues were collected for determination of gene expression levels and miRNAs (i.e., miR-29a,b,c and miR-203). The predicted target of these microRNAs (i.e., vascular endothelial growth factor A, VEGFA) was functionally validated. Results Social isolation stress delayed the healing process of oral palatal mucosal wounds in rats. Lower mRNA levels of interleukin-1β (IL1β), macrophage inflammatory protein-1α (MIP1α), fibroblast growth factor 7 (FGF7), and VEGFA were found in the biopsied tissues of isolated animals on days 1 and/or 3 post-wounding. Intriguingly, the isolated rats persistently exhibited higher levels of miR-29 family members and miR-203. Our results confirmed that VEGFA is a direct target of these miRNAs, as both miR-29a,c and miR-203 strongly and specifically suppressed endogenous VEGFA expression in vitro. Conclusions This study in rats demonstrates for the first time that social isolation delays oral mucosal healing, and suggests a potential role for healing-associated gene and miRNA interactions during this process via modulation of VEGF expression.
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Affiliation(s)
- Linglan Yang
- Department of Oral Medicine, the Affiliated Hospital of Stomatology, Sun Yat-sen University, Guangzhou, Guangdong, China
- Guangdong Provincial Key Laboratory of Stomatology, Guangzhou, Guangdong, China
| | - Christopher G. Engeland
- Center for Wound Healing and Tissue Regeneration, College of Dentistry, University of Illinois at Chicago, Chicago, Illinois, United States of America
- Department of Periodontics, College of Dentistry, University of Illinois at Chicago, Chicago, Illinois, United States of America
- Department of Women, Child, Family Health Science, University of Illinois at Chicago, Chicago, Illinois, United States of America
| | - Bin Cheng
- Department of Oral Medicine, the Affiliated Hospital of Stomatology, Sun Yat-sen University, Guangzhou, Guangdong, China
- Guangdong Provincial Key Laboratory of Stomatology, Guangzhou, Guangdong, China
- * E-mail:
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Chen G, Qiu H, Ke SD, Hu SM, Yu SY, Zou SQ. Emodin regulating excision repair cross-complementation group 1 through fibroblast growth factor receptor 2 signaling. World J Gastroenterol 2013; 19:2481-2491. [PMID: 23674849 PMCID: PMC3646138 DOI: 10.3748/wjg.v19.i16.2481] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/03/2012] [Revised: 01/26/2013] [Accepted: 03/23/2013] [Indexed: 02/06/2023] Open
Abstract
AIM: To investigate the molecular mechanisms underlying the reversal effect of emodin on platinum resistance in hepatocellular carcinoma.
METHODS: After the addition of 10 μmol/L emodin to HepG2/oxaliplatin (OXA) cells, the inhibition rate (IR), 50% inhibitory concentration (IC50) and reversal index (IC50 in experimental group/IC50 in control group) were calculated. For HepG2, HepG2/OXA, HepG2/OXA/T, each cell line was divided into a control group, OXA group, OXA + fibroblast growth factor 7 (FGF7) group and OXA + emodin group, and the final concentrations of FGF7, emodin and OXA in each group were 5 ng/mL, 10 μg/mL and 10 μmol/L, respectively. Single-cell gel electrophoresis was conducted to detect DNA damage, and the fibroblast growth factor receptor 2 (FGFR2), phosphorylated extracellular signal-regulated kinase 1/2 (p-ERK1/2) and excision repair cross-complementing gene 1 (ERCC1) protein expression levels in each group were examined by Western blotting.
RESULTS: Compared with the IC50 of 120.78 μmol/L in HepG2/OXA cells, the IC50 decreased to 39.65 μmol/L after treatment with 10 μmol/L emodin; thus, the reversal index was 3.05. Compared with the control group, the tail length and Olive tail length in the OXA group, OXA + FGF7 group and OXA + emodin group were significantly increased, and the differences were statistically significant (P < 0.01). The tail length and Olive tail length were lower in the OXA + FGF7 group than in the OXA group, and this difference was also statistically significant. Compared with the OXA + FGF7 group, the tail extent, the Olive tail moment and the percentage of tail DNA were significantly increased in the OXA + emodin group, and these differences were statistically significant (P < 0.01). In comparison with its parental cell line HepG2, the HepG2/OXA cells demonstrated significantly increased FGFR2, p-ERK1/2 and ERCC1 expression levels, whereas the expression of all three molecules was significantly inhibited in HepG2/OXA/T cells, in which FGFR2 was silenced by FGFR2 shRNA. In the examined HepG2 cells, the FGFR2, p-ERK1/2 and ERCC1 expression levels demonstrated increasing trends in the OXA group and OXA + FGF7 group. Compared with the OXA group and OXA + FGF7 group, the FGFR2, p-ERK1/2, and ERCC1 expression levels were significantly lower in the OXA + emodin group, and these differences were statistically significant. In the HepG2/OXA/T cell line that was transfected with FGFR2 shRNA, the FGFR2, p-ERK1/2 and ERCC1 expression levels were significantly inhibited, but there were no significant differences in these expression levels among the OXA, OXA + FGF7 and OXA + emodin groups.
CONCLUSION: Emodin markedly reversed OXA resistance by enhancing OXA DNA damage in HepG2/OXA cells, and the molecular mechanism was related to the inhibitory effect on ERCC1 expression being mediated by the FGFR2/ERK1/2 signaling pathway.
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MESH Headings
- Antineoplastic Agents/pharmacology
- Carcinoma, Hepatocellular/enzymology
- Carcinoma, Hepatocellular/genetics
- Carcinoma, Hepatocellular/pathology
- Cell Proliferation/drug effects
- DNA Damage
- DNA-Binding Proteins/metabolism
- Dose-Response Relationship, Drug
- Drug Resistance, Neoplasm/drug effects
- Emodin/pharmacology
- Endonucleases/metabolism
- Fibroblast Growth Factor 7/metabolism
- Hep G2 Cells
- Humans
- Inhibitory Concentration 50
- Liver Neoplasms/enzymology
- Liver Neoplasms/genetics
- Liver Neoplasms/pathology
- Mitogen-Activated Protein Kinase 1/metabolism
- Mitogen-Activated Protein Kinase 3/metabolism
- Organoplatinum Compounds/pharmacology
- Oxaliplatin
- Phosphorylation
- RNA Interference
- Receptor, Fibroblast Growth Factor, Type 2/drug effects
- Receptor, Fibroblast Growth Factor, Type 2/genetics
- Receptor, Fibroblast Growth Factor, Type 2/metabolism
- Signal Transduction/drug effects
- Transfection
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Waterer GW, Rello J. Acute respiratory distress syndrome and stem cells: a small beginning or a strategy doomed to never gestate? Am J Respir Crit Care Med 2013; 187:674-5. [PMID: 23540875 DOI: 10.1164/rccm.201301-0170ed] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
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Zhang X, Hao L, Meng L, Liu M, Zhao L, Hu F, Ding C, Wang Y, He B, Pan Y, Fang W, Chen J, Hu S, Jia M. Digital gene expression tag profiling analysis of the gene expression patterns regulating the early stage of mouse spermatogenesis. PLoS One 2013; 8:e58680. [PMID: 23554914 PMCID: PMC3598852 DOI: 10.1371/journal.pone.0058680] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2012] [Accepted: 02/06/2013] [Indexed: 12/30/2022] Open
Abstract
Detailed characterization of the gene expression patterns in spermatogonia and primary spermatocytes is critical to understand the processes which occur prior to meiosis during normal spermatogenesis. The genome-wide expression profiles of mouse type B spermatogonia and primary spermatocytes were investigated using the Solexa/Illumina digital gene expression (DGE) system, a tag based high-throughput transcriptome sequencing method, and the developmental processes which occur during early spermatogenesis were systematically analyzed. Gene expression patterns vary significantly between mouse type B spermatogonia and primary spermatocytes. The functional analysis revealed that genes related to junction assembly, regulation of the actin cytoskeleton and pluripotency were most significantly differently expressed. Pathway analysis indicated that the Wnt non-canonical signaling pathway played a central role and interacted with the actin filament organization pathway during the development of spermatogonia. This study provides a foundation for further analysis of the gene expression patterns and signaling pathways which regulate the molecular mechanisms of early spermatogenesis.
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Affiliation(s)
- Xiujun Zhang
- College of Life Sciences, Hebei United University, Tangshan, Hebei, China
- Department of Reproductive Endocrinology, National Research Institute for Family Planning, Beijing, China
| | - Lili Hao
- CAS Key Laboratory of Genome Sciences and Information, Beijing Institute of Genomics, Chinese Academy of Sciences, Beijing, China
| | - Lijun Meng
- Department of Environment and Chemical Engineering, Tangshan College, Tangshan, Hebei, China
| | - Meiling Liu
- Department of Reproductive Endocrinology, National Research Institute for Family Planning, Beijing, China
| | - Lina Zhao
- College of Life Sciences, Hebei United University, Tangshan, Hebei, China
| | - Fen Hu
- College of Life Sciences, Hebei United University, Tangshan, Hebei, China
| | - Cunbao Ding
- College of Life Sciences, Hebei United University, Tangshan, Hebei, China
| | - Yang Wang
- College of Life Sciences, Hebei United University, Tangshan, Hebei, China
| | - Baoling He
- College of Life Sciences, Hebei United University, Tangshan, Hebei, China
| | - Yuxin Pan
- College of Life Sciences, Hebei United University, Tangshan, Hebei, China
| | - Wei Fang
- College of Life Sciences, Hebei United University, Tangshan, Hebei, China
| | - Jing Chen
- College of Life Sciences, Hebei United University, Tangshan, Hebei, China
| | - Songnian Hu
- CAS Key Laboratory of Genome Sciences and Information, Beijing Institute of Genomics, Chinese Academy of Sciences, Beijing, China
- * E-mail: (SH); (MJ)
| | - Mengchun Jia
- Department of Reproductive Endocrinology, National Research Institute for Family Planning, Beijing, China
- * E-mail: (SH); (MJ)
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Cai YJ, Wang WS, Yang Y, Sun LH, Teitelbaum DH, Yang H. Up-regulation of intestinal epithelial cell derived IL-7 expression by keratinocyte growth factor through STAT1/IRF-1, IRF-2 pathway. PLoS One 2013; 8:e58647. [PMID: 23554911 PMCID: PMC3595257 DOI: 10.1371/journal.pone.0058647] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2012] [Accepted: 02/05/2013] [Indexed: 11/19/2022] Open
Abstract
Background Epithelial cells(EC)-derived interleukin-7 (IL-7) plays a crucial role in control of development and homeostasis of neighboring intraepithelial lymphocytes (IEL), and keratinocyte growth factor (KGF) exerts protective effects on intestinal epithelial cells and up-regulates EC-derived IL-7 expression through KGFR pathway. This study was to further investigate the molecular mechanism involved in the regulation of IL-7 expression by KGF in the intestine. Methods Intestinal epithelial cells (LoVo cells) and adult C57BL/6J mice were treated with KGF. Epithelial cell proliferation was studied by flow cytometry for BrdU-incorporation and by immunohistochemistry for PCNA staining. Western blot was used to detect the changes of expression of P-Tyr-STAT1, STAT1, and IL-7 by inhibiting STAT1. Alterations of nuclear extracts and total proteins of IRF-1, IRF-2 and IL-7 following IRF-1 and IRF-2 RNA interference with KGF treatment were also measured with western blot. Moreover, IL-7 mRNA expressions were also detected by Real-time PCR and IL-7 protein level in culture supernatants was measured by enzyme linked immunosorbent assay(ELISA). Results KGF administration significantly increased LoVo cell proliferation and also increased intestinal wet weight, villus height, crypt depth and crypt cell proliferation in mice. KGF treatment led to increased levels of P-Tyr-STAT1, RAPA and AG490 both blocked P-Tyr-STAT1 and IL-7 expression in LoVo cells. IRF-1 and IRF-2 expression in vivo and in vitro were also up-regulated by KGF, and IL-7 expression was decreased after IRF-1 and IRF-2 expression was silenced by interfering RNA, respectively. Conclusion KGF could up-regulate IL-7 expression through the STAT1/IRF-1, IRF-2 signaling pathway, which is a new insight in potential effects of KGF on the intestinal mucosal immune system.
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Affiliation(s)
- Yu-Jiao Cai
- Department of General Surgery, Xinqiao Hospital, Third Military Medical University, Chongqing, China
| | - Wen-Sheng Wang
- Department of General Surgery, Xinqiao Hospital, Third Military Medical University, Chongqing, China
| | - Yang Yang
- Department of General Surgery, Xinqiao Hospital, Third Military Medical University, Chongqing, China
| | - Li-Hua Sun
- Department of General Surgery, Xinqiao Hospital, Third Military Medical University, Chongqing, China
| | - Daniel H. Teitelbaum
- Department of Surgery, The University of Michigan Medical School, Ann Arbor, Michigan, United States of America
| | - Hua Yang
- Department of General Surgery, Xinqiao Hospital, Third Military Medical University, Chongqing, China
- Department of Surgery, The University of Michigan Medical School, Ann Arbor, Michigan, United States of America
- * E-mail:
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Kim TI, Poulin EJ, Blask E, Bukhalid R, Whitehead RH, Franklin JL, Coffey RJ. Myofibroblast keratinocyte growth factor reduces tight junctional integrity and increases claudin-2 levels in polarized Caco-2 cells. Growth Factors 2012; 30:320-32. [PMID: 22946653 PMCID: PMC3594790 DOI: 10.3109/08977194.2012.717076] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Abstract
The colonic epithelium is composed of a polarized monolayer sheathed by a layer of pericryptal myofibroblasts (PCMFs). We mimicked these cellular compartments in vitro to assess the effects of paracrine-acting PCMF-derived factors on tight junction (TJ) integrity, as measured by transepithelial electrical resistance (TER). Coculture with 18Co PCMFs, or basolateral administration of 18Co conditioned medium, significantly reduced TER of polarized Caco-2 cells. Among candidate paracrine factors, only keratinocyte growth factor (KGF) reduced Caco-2 TER; basolateral KGF treatment led to time- and concentration-dependent increases in claudin-2 levels. We also demonstrate that amphiregulin (AREG), produced largely by Caco-2 cells, increased claudin-2 levels, leading to epidermal growth factor receptor-mediated TER reduction. We propose that colonic epithelial TJ integrity can be modulated by paracrine KGF and autocrine AREG through increased claudin-2 levels. KGF-regulated claudin-2 induction may have implications for inflammatory bowel disease, where both KGF and claudin-2 are upregulated.
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Affiliation(s)
- Tae Il Kim
- Department of Medicine, Vanderbilt University Medical Center, Nashville, TN 37232, USA
| | - Emily J. Poulin
- Department of Cell and Developmental Biology, Vanderbilt University Medical Center, Nashville, TN 37232, USA
| | | | | | - Robert H. Whitehead
- Department of Medicine, Vanderbilt University Medical Center, Nashville, TN 37232, USA
| | - Jeffrey L. Franklin
- Department of Cell and Developmental Biology, Vanderbilt University Medical Center, Nashville, TN 37232, USA
| | - Robert J. Coffey
- Department of Medicine, Vanderbilt University Medical Center, Nashville, TN 37232, USA
- Department of Cell and Developmental Biology, Vanderbilt University Medical Center, Nashville, TN 37232, USA
- Department of Veterans Affairs Medical Center, Nashville, TN 37232-2279, USA
- Corresponding Author: Robert J. Coffey, M.D., Epithelial Biology Center, 2213 Garland Avenue, 10415 MRB IV -0441, Vanderbilt University, Nashville, TN 37232, Tel: 615-343-6228, Fax: 615-343-1591,
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Toriseva M, Ala-aho R, Peltonen S, Peltonen J, Grénman R, Kähäri VM. Keratinocyte growth factor induces gene expression signature associated with suppression of malignant phenotype of cutaneous squamous carcinoma cells. PLoS One 2012; 7:e33041. [PMID: 22427941 PMCID: PMC3299721 DOI: 10.1371/journal.pone.0033041] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2011] [Accepted: 02/09/2012] [Indexed: 12/26/2022] Open
Abstract
Keratinocyte growth factor (KGF, fibroblast growth factor-7) is a fibroblast-derived mitogen, which stimulates proliferation of epithelial cells. The expression of KGF by dermal fibroblasts is induced following injury and it promotes wound repair. However, the role of KGF in cutaneous carcinogenesis and cancer progression is not known. We have examined the role of KGF in progression of squamous cell carcinoma (SCC) of the skin. The expression of KGF receptor (KGFR) mRNA was lower in cutaneous SCCs (n = 6) than in normal skin samples (n = 6). Expression of KGFR mRNA was detected in 6 out of 8 cutaneous SCC cell lines and the levels were downregulated by 24-h treatment with KGF. KGF did not stimulate SCC cell proliferation, but it reduced invasion of SCC cells through collagen. Gene expression profiling of three cutaneous SCC cell lines treated with KGF for 24 h revealed a specific gene expression signature characterized by upregulation of a set of genes specifically downregulated in SCC cells compared to normal epidermal keratinocytes, including genes with tumor suppressing properties (SPRY4, DUSP4, DUSP6, LRIG1, PHLDA1). KGF also induced downregulation of a set of genes specifically upregulated in SCC cells compared to normal keratinocytes, including genes associated with tumor progression (MMP13, MATN2, CXCL10, and IGFBP3). Downregulation of MMP-13 and KGFR expression in SCC cells and HaCaT cells was mediated via ERK1/2. Activation of ERK1/2 in HaCaT cells and tumorigenic Ha-ras-transformed HaCaT cells resulted in downregulation of MMP-13 and KGFR expression. These results provide evidence, that KGF does not promote progression of cutaneous SCC, but rather suppresses the malignant phenotype of cutaneous SCC cells by regulating the expression of several genes differentially expressed in SCC cells, as compared to normal keratinocytes.
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Affiliation(s)
- Mervi Toriseva
- Department of Dermatology, University of Turku, Turku University Hospital, Turku, Finland
- MediCity Research Laboratory, University of Turku, Turku, Finland
- Turku Graduate School of Biomedical Sciences, Turku, Finland
| | - Risto Ala-aho
- Department of Dermatology, University of Turku, Turku University Hospital, Turku, Finland
- MediCity Research Laboratory, University of Turku, Turku, Finland
| | - Sirkku Peltonen
- Department of Dermatology, University of Turku, Turku University Hospital, Turku, Finland
| | - Juha Peltonen
- Department of Cell Biology and Anatomy, University of Turku, Turku, Finland
| | - Reidar Grénman
- Department of Otorhinolaryngology-Head and Neck Surgery, Turku University Hospital, Turku, Finland
| | - Veli-Matti Kähäri
- Department of Dermatology, University of Turku, Turku University Hospital, Turku, Finland
- MediCity Research Laboratory, University of Turku, Turku, Finland
- * E-mail:
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Lee SJ, Lee J, Li KK, Holland D, Maughan H, Guttman DS, Yusta B, Drucker DJ. Disruption of the murine Glp2r impairs Paneth cell function and increases susceptibility to small bowel enteritis. Endocrinology 2012; 153:1141-51. [PMID: 22253424 PMCID: PMC3606134 DOI: 10.1210/en.2011-1954] [Citation(s) in RCA: 59] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Exogenous glucagon-like peptide-2 receptor (GLP-2R) activation elicits proliferative and cytoprotective responses in the gastrointestinal mucosa and ameliorates experimental small and large bowel gut injury. Nevertheless, the essential physiological role(s) of the endogenous GLP-2R remain poorly understood. We studied the importance of the GLP-2R for gut growth, epithelial cell lineage allocation, the response to mucosal injury, and host-bacterial interactions in Glp2r(-/-) and littermate control Glp2r(+/+) mice. Glp2r(-/-) mice exhibit normal somatic growth and preserved small and large bowel responses to IGF-I and keratinocyte growth factor. However, Glp2r(-/-) mice failed to up-regulate intestinal epithelial c-fos expression in response to acute GLP-2 administration and do not exhibit changes in small bowel conductance or small or large bowel growth after administration of GLP-2R agonists. The crypt and villus compartment and the numbers and localization of Paneth, enteroendocrine, and goblet cells were comparable in Glp2r(+/+) vs. Glp2r(-/-) mice. Although the severity and extent of colonic mucosal injury in response to 3% oral dextran sulfate was similar across Glp2r genotypes, Glp2r(-/-) mice exhibited significantly increased morbidity and mortality and increased bacterial translocation after induction of enteritis with indomethacin and enhanced mucosal injury in response to irinotecan. Moreover, bacterial colonization of the small bowel was significantly increased, expression of Paneth cell antimicrobial gene products was reduced, and mucosal bactericidal activity was impaired in Glp2r(-/-) mice. Although the Glp2r is dispensable for gut development and the response to colonic injury, Glp2r(-/-) mice exhibit enhanced sensitivity to small bowel injury, and abnormal host-bacterial interactions in the small bowel.
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Affiliation(s)
- Seung-Jun Lee
- Department of Medicine, Mt. Sinai Hospital, Samuel Lunenfeld Research Institute, 600 University Avenue, TCP5-1004, Toronto, Ontario, Canada
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Yamamoto-Fukuda T, Takahashi H, Koji T. Expression of keratinocyte growth factor (KGF) and its receptor in a middle-ear cavity problem. Int J Pediatr Otorhinolaryngol 2012; 76:76-81. [PMID: 22024578 DOI: 10.1016/j.ijporl.2011.10.003] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/27/2011] [Revised: 09/29/2011] [Accepted: 10/02/2011] [Indexed: 01/18/2023]
Abstract
OBJECTIVES To investigate the pathogenesis of one of the most troublesome conditions following ear surgery, a middle-ear cavity problem. METHODS Keratinocyte growth factor (KGF) and its receptor (KGFR), the ratio of proliferating epithelial cells using Ki-67, and the extent of infiltration of B cells and T cells were examined immunohistochemically in 10 ears with a cavity problem, 70 ears with cholesteatoma and 8 ears with normal skin at the retroauricular incision. RESULTS KGF was positive in 40% of cavity problem specimens, 37.5% of normal skin specimens, and was positive in 88% of cholesteatoma specimens (cavity problem vs. cholesteatoma, p=0.0004). The positive rate of KGFR in the cavity problem group (33.3%) was between those in cholesteatoma (60%) and normal skin (0%). In contrast to the cholesteatoma specimens, a significantly smaller number of Ki-67 labeling index (LI) was detected in the cavity problem specimens. B cell LI was significantly higher but T cell LI was significantly lower in the cavity problem specimens than in the cholesteatoma group. CONCLUSIONS Our present study indicated that the discordance of paracrine action between stromal KGF and epithelial KGFR with a large number of infiltrating B cells may play an important role in the pathogenesis of a cavity problem.
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Affiliation(s)
- Tomomi Yamamoto-Fukuda
- Department of Otolaryngology-Head and Neck Surgery, Nagasaki University Graduate School of Biomedical Sciences, 1-7-1 Sakamoto, Nagasaki 852-8501, Japan.
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Badri L, Walker NM, Ohtsuka T, Wang Z, Delmar M, Flint A, Peters-Golden M, Toews GB, Pinsky DJ, Krebsbach PH, Lama VN. Epithelial interactions and local engraftment of lung-resident mesenchymal stem cells. Am J Respir Cell Mol Biol 2011; 45:809-16. [PMID: 21378261 PMCID: PMC3208618 DOI: 10.1165/rcmb.2010-0446oc] [Citation(s) in RCA: 52] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2010] [Accepted: 01/25/2011] [Indexed: 01/08/2023] Open
Abstract
Multipotent mesenchymal progenitor cells, termed "mesenchymal stem cells" (MSCs), have been demonstrated to reside in human adult lungs. However, there is little information regarding the associations of these local mesenchymal progenitors with other resident somatic cells and their potential for therapeutic use. Here we provide in vivo and in vitro evidence for the ability of human adult lung-resident MSCs (LR-MSCs) to interact with the local epithelial cells. The in vivo retention and localization of human LR-MSCs in an alveolar microenvironment was investigated by placing PKH-26 or DsRed lentivirus-labeled human LR-MSCs in the lungs of immunodeficient (SCID) mice. At 3 weeks after intratracheal administration, 19.3 ± 3.21% of LR-MSCs were recovered, compared with 3.47 ± 0.51% of control fibroblasts, as determined by flow cytometry. LR-MSCs were found to persist in murine lungs for up to 6 months and demonstrated preferential localization to the corners of the alveoli in close proximity to type II alveolar epithelial cells, the progenitor cells of the alveolar epithelium. In vitro, LR-MSCs established gap junction communications with lung alveolar and bronchial epithelial cells and demonstrated an ability to secrete keratinocyte growth factor, an important modulator of epithelial cell proliferation and differentiation. Gap junction communications were also demonstrable between LR-MSCs and resident murine cells in vivo. This study demonstrates, for the first time, an ability of tissue-specific MSCs to engraft in their organ of origin and establishes a pathway of bidirectional interaction between these mesenchymal progenitors and adult somatic epithelial cells in the lung.
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Affiliation(s)
| | | | | | - Zhuo Wang
- Department of Biologic and Materials Sciences, University of Michigan School of Dentistry, Ann Arbor, Michigan
| | | | - Andrew Flint
- Divisions of Pulmonary and Critical Care Medicine and Cardiovascular Medicine, and Department of Pathology, University of Michigan Health System, Ann Arbor, Michigan; and
| | | | | | | | - Paul H. Krebsbach
- Department of Biologic and Materials Sciences, University of Michigan School of Dentistry, Ann Arbor, Michigan
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Pinto D, Marzani B, Minervini F, Calasso M, Giuliani G, Gobbetti M, De Angelis M. Plantaricin A synthesized by Lactobacillus plantarum induces in vitro proliferation and migration of human keratinocytes and increases the expression of TGF-β1, FGF7, VEGF-A and IL-8 genes. Peptides 2011; 32:1815-24. [PMID: 21782870 DOI: 10.1016/j.peptides.2011.07.004] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/14/2011] [Revised: 07/06/2011] [Accepted: 07/06/2011] [Indexed: 12/16/2022]
Abstract
This work showed the effect of pheromone plantaricin A (PlnA) on the proliferation and migration of the human keratinocytes NCTC 2544. PlnA was chemically synthesized and used as pure peptide or biologically synthesized during co-cultivation of Lactobacillus plantarum DC400 and Lactobacillus sanfranciscensis DPPMA174. The cell-free supernatant (CFS) was used as the crude preparation containing PlnA. The inductive effect of PlnA on the proliferation of NCTC 2544 cells was higher than that found for hyaluronic acid, a well known skin protective compound. As shown by scratch assay and image analyses, PlnA enhanced the migration of NCTC 2544 cells. Compared to the basal serum free medium (control), the highest inductive effect was found using 10μg/ml of chemically synthesized PlnA. Similar results (P>0.05) were found for CFS. In agreement, the percentage of the starting scratch area was decreased after treatment (24h) with PlnA. The expression of transforming growth factor-β1 (TGF-β1), keratinocyte growth factor 7 (FGF7), vascular endothelial growth factor (VEGF-A), and interleukin-8 (IL-8) genes was affected by PlnA. Compared to control, TGF-β1 gene was under expressed in the first 4h of treatments and up-regulated after 8-24h. On the contrary, FGF7 gene was strongly up-regulated in the first 4h of treatments. Compared to control, VEGF-A and IL-8 genes were always up-regulated during the 4-24h from scratching. Since capable of promoting the proliferation and migration of the human keratinocytes and of stimulating IL-8 cytokine, the use of PlnA for dermatological purposes should be considered.
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Affiliation(s)
- Daniela Pinto
- Department of Biologia e Chimica Agro-Forestale ed Ambientale, University of Bari, 70126 Bari, Italy
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