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Esquivel AR, Hill SE, Blair LJ. DnaJs are enriched in tau regulators. Int J Biol Macromol 2023; 253:127486. [PMID: 37852393 PMCID: PMC10842427 DOI: 10.1016/j.ijbiomac.2023.127486] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2023] [Revised: 10/09/2023] [Accepted: 10/15/2023] [Indexed: 10/20/2023]
Abstract
The aberrant accumulation of tau protein is implicated as a pathogenic factor in many neurodegenerative diseases. Tau seeding may underlie its predictable spread in these diseases. Molecular chaperones can modulate tau pathology, but their effects have mainly been studied in isolation. This study employed a semi-high throughput assay to identify molecular chaperones influencing tau seeding using Tau RD P301S FRET Biosensor cells, which express a portion of tau containing the frontotemporal dementia-related P301S tau mutation fused to a FRET biosensor. Approximately fifty chaperones from five major families were screened using live cell imaging to monitor FRET-positive tau seeding. Among the tested chaperones, five exhibited significant effects on tau in the primary screen. Notably, three of these were from the DnaJ family. In subsequent studies, overexpression of DnaJA2, DnaJB1, and DnaJB6b resulted in significant reductions in tau levels. Knockdown experiments by shRNA revealed an inverse correlation between DnaJB1 and DnaJB6b with tau levels. DnaJB6b overexpression, specifically, reduced total tau levels in a cellular model with a pre-existing pool of tau, partially through enhanced proteasomal degradation. Further, DnaJB6b interacted with tau complexes. These findings highlight the potent chaperone activity within the DnaJ family, particularly DnaJB6b, towards tau.
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Affiliation(s)
- Abigail R Esquivel
- Department of Molecular Medicine, Morsani College of Medicine, University of South Florida, Tampa, FL 33612, USA; USF Health Byrd Alzheimer's Institute, University of South Florida, Tampa, FL 33613, USA
| | - Shannon E Hill
- Department of Molecular Medicine, Morsani College of Medicine, University of South Florida, Tampa, FL 33612, USA; USF Health Byrd Alzheimer's Institute, University of South Florida, Tampa, FL 33613, USA
| | - Laura J Blair
- Department of Molecular Medicine, Morsani College of Medicine, University of South Florida, Tampa, FL 33612, USA; USF Health Byrd Alzheimer's Institute, University of South Florida, Tampa, FL 33613, USA; Research Service, James A Haley Veterans Hospital, 13000 Bruce B Downs Blvd, Tampa, FL 33612, USA.
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2
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Ishikawa Y, Bonna A, Gould DB, Farndale RW. Local Net Charge State of Collagen Triple Helix Is a Determinant of FKBP22 Binding to Collagen III. Int J Mol Sci 2023; 24:15156. [PMID: 37894834 PMCID: PMC10607241 DOI: 10.3390/ijms242015156] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2023] [Revised: 10/10/2023] [Accepted: 10/10/2023] [Indexed: 10/29/2023] Open
Abstract
Mutations in the FKBP14 gene encoding the endoplasmic reticulum resident collagen-related proline isomerase FK506 binding protein 22 kDa (FKBP22) result in kyphoscoliotic Ehlers-Danlos Syndrome (EDS), which is characterized by a broad phenotypic outcome. A plausible explanation for this outcome is that FKBP22 participates in the biosynthesis of subsets of collagen types: FKBP22 selectively binds to collagens III, IV, VI, and X, but not to collagens I, II, V, and XI. However, these binding mechanisms have never been explored, and they may underpin EDS subtype heterogeneity. Here, we used collagen Toolkit peptide libraries to investigate binding specificity. We observed that FKBP22 binding was distributed along the collagen helix. Further, it (1) was higher on collagen III than collagen II peptides and it (2) was correlated with a positive peptide charge. These findings begin to elucidate the mechanism by which FKBP22 interacts with collagen.
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Affiliation(s)
- Yoshihiro Ishikawa
- Department of Ophthalmology, University of California San Francisco, School of Medicine, San Francisco, CA 941583, USA
| | - Arkadiusz Bonna
- Department of Biochemistry, Downing Site, Cambridge CB2 1QW, UK
| | - Douglas B. Gould
- Department of Ophthalmology, University of California San Francisco, School of Medicine, San Francisco, CA 941583, USA
- Department of Anatomy, University of California, San Francisco, CA 94143, USA
- Cardiovascular Research Institute, University of California, San Francisco, CA 94158, USA
- Bakar Aging Research Institute, University of California, San Francisco, CA 94143, USA
- Institute for Human Genetics, University of California, San Francisco, CA 94143, USA
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3
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Thokerunga E, Bongolo CC, Rugera SP, Akankwatsa G, Tu JC. FKBP11 upregulation promotes proliferation and migration in hepatocellular carcinoma. Cancer Biomark 2023:CBM220440. [PMID: 37248890 DOI: 10.3233/cbm-220440] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
BACKGROUND Hepatocellular carcinoma (HCC) is one of the leading causes of cancer related deaths world over. Early diagnosis and effective treatment monitoring significantly improves patients' outcomes. FKBP11 gene is highly expressed in HCC and could play a role in its development, early diagnosis and treatment. OBJECTIVE This study aimed to evaluate the expression of FKBP11 in HCC, its correlation with patients' clinical characteristics and potential role in HCC development. METHODS Expression was determined by bioinformatics analysis, quantitative real-time PCR, western blot, and immunohistochemistry. CCK-8, Transwell and wound healing assays were used to investigate involvement in HCC development. RESULTS FKBP11 was significantly upregulated in HCC cells, tissues and blood (all p< 0.001). Its receiver operator characteristic (ROC) curve had an AUC of 0.864 (95% CI: 0.823-0.904), at a sensitivity of 0.86 and specificity of 0.78 indicating a good diagnostic potential in HCC. Its expression was markedly reduced after surgery (p< 0.0001), indicating a potential application in HCC treatment follow-up. Knockdown of FKBP11 in HCC cells attenuated proliferation and migration, suggesting a possible role in HCC pathogenesis. CONCLUSION This study thus found that FKBP11 is upregulated in HCC, and the upregulation promotes HCC development. FKBP11 levels are significantly reduced post-surgery and could be a potential diagnostic and prognostic marker for HCC.
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Affiliation(s)
- Erick Thokerunga
- Program and Department of Clinical Laboratory Medicine, Center for Gene Diagnosis, Zhongnan Hospital of Wuhan University, Wuhan, Hubei, China
| | - Christian Cedric Bongolo
- Program and Department of Clinical Laboratory Medicine, Center for Gene Diagnosis, Zhongnan Hospital of Wuhan University, Wuhan, Hubei, China
| | - Simon Peter Rugera
- Department of Medical Laboratory Science, Faculty of Medicine, Mbarara University of Science and Technology, Mbarara, Uganda
| | - Gilbert Akankwatsa
- Department of Medical Laboratory Science, School of Allied Health Sciences, Kampala International University, Bushenyi, Uganda
| | - Jian-Cheng Tu
- Program and Department of Clinical Laboratory Medicine, Center for Gene Diagnosis, Zhongnan Hospital of Wuhan University, Wuhan, Hubei, China
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4
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Zeng D, Li J, Yuan X, Cai F, Yu B, Liu L, Chen Q, Zhang F, Liang Y, Tang X, Peng Y, Qu G, Wu P, Jiao Q, Sun L, Lv XB, Liao Q. FKBP11 improves the malignant property in osteosarcoma cells and acts as a prognostic factor of osteosarcoma. Aging (Albany NY) 2023; 15:2450-2459. [PMID: 37014329 PMCID: PMC10120909 DOI: 10.18632/aging.204523] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2022] [Accepted: 02/11/2023] [Indexed: 04/03/2023]
Abstract
BACKGROUND Osteosarcoma has become the most common bone malignancy in adolescents. Although the clinical treatment of osteosarcoma has developed very much in recent years, the 5-year survival rate for patients with osteosarcoma has not improved significantly. Currently, many studies have shown that mRNA has a unique advantage as a target for drug therapy. Therefore, this study is dedicated to finding a new prognostic factor and providing a new target for the treatment of osteosarcoma to improve the prognosis of patients with osteosarcoma. METHODS AND RESULTS We selected the prognostic genes which are closely associated with osteosarcoma clinical features by obtaining osteosarcoma patients' information from the GTEx and TARGET database, then developed a risk model. We detected the expression of FKBP11 in osteosarcoma by qRT-PCR, Western blotting, and immunohistochemistry, and performed CCK8, transwell, colony formation, and flow cytometry to reveal the regulatory role of FKBP11. We found that FKBP11 was highly expressed in osteosarcoma, and silencing FKBP11 expression reduced the invasion and migration ability of osteosarcoma cells and slowed down cell proliferation, while promoting apoptosis. We also found that silencing the expression of FKBP11 led to inhibiting the phosphorylation of MEK/ERK. CONCLUSIONS In conclusion, we validated that the prognostic factor FKBP11 is closely associated with osteosarcoma and found a novel mechanism by which FKBP11 ameliorates the malignant properties of osteosarcoma cells through the MAPK pathway and serves as a prognostic factor in osteosarcoma. It provides a new idea for the treatment of osteosarcoma.
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Affiliation(s)
- Duo Zeng
- Jiangxi Key Laboratory of Cancer Metastasis and Precision Treatment, Central Laboratory, The Third Affiliated Hospital of Nanchang University, Nanchang, Jiangxi 330008, P.R. China
- Department of Orthopedics, The Third Affiliated Hospital of Nanchang University, Nanchang, Jiangxi 330008, P.R. China
| | - Jiayu Li
- Jiangxi Key Laboratory of Cancer Metastasis and Precision Treatment, Central Laboratory, The Third Affiliated Hospital of Nanchang University, Nanchang, Jiangxi 330008, P.R. China
- Department of Orthopedics, The Third Affiliated Hospital of Nanchang University, Nanchang, Jiangxi 330008, P.R. China
| | - Xuhui Yuan
- Jiangxi Key Laboratory of Cancer Metastasis and Precision Treatment, Central Laboratory, The Third Affiliated Hospital of Nanchang University, Nanchang, Jiangxi 330008, P.R. China
- Department of Orthopedics, The Third Affiliated Hospital of Nanchang University, Nanchang, Jiangxi 330008, P.R. China
| | - Feng Cai
- Jiangxi Key Laboratory of Cancer Metastasis and Precision Treatment, Central Laboratory, The Third Affiliated Hospital of Nanchang University, Nanchang, Jiangxi 330008, P.R. China
- Department of Orthopedics, The Third Affiliated Hospital of Nanchang University, Nanchang, Jiangxi 330008, P.R. China
| | - Bo Yu
- Jiangxi Key Laboratory of Cancer Metastasis and Precision Treatment, Central Laboratory, The Third Affiliated Hospital of Nanchang University, Nanchang, Jiangxi 330008, P.R. China
- Department of Orthopedics, The Third Affiliated Hospital of Nanchang University, Nanchang, Jiangxi 330008, P.R. China
| | - Lang Liu
- Jiangxi Key Laboratory of Cancer Metastasis and Precision Treatment, Central Laboratory, The Third Affiliated Hospital of Nanchang University, Nanchang, Jiangxi 330008, P.R. China
- Department of Orthopedics, The Third Affiliated Hospital of Nanchang University, Nanchang, Jiangxi 330008, P.R. China
| | - Qinchan Chen
- Jiangxi Key Laboratory of Cancer Metastasis and Precision Treatment, Central Laboratory, The Third Affiliated Hospital of Nanchang University, Nanchang, Jiangxi 330008, P.R. China
- Department of Orthopedics, The Third Affiliated Hospital of Nanchang University, Nanchang, Jiangxi 330008, P.R. China
| | - FeiFei Zhang
- Jiangxi Key Laboratory of Cancer Metastasis and Precision Treatment, Central Laboratory, The Third Affiliated Hospital of Nanchang University, Nanchang, Jiangxi 330008, P.R. China
| | - Yiping Liang
- Jiangxi Key Laboratory of Cancer Metastasis and Precision Treatment, Central Laboratory, The Third Affiliated Hospital of Nanchang University, Nanchang, Jiangxi 330008, P.R. China
| | - Xiaofeng Tang
- Jiangxi Key Laboratory of Cancer Metastasis and Precision Treatment, Central Laboratory, The Third Affiliated Hospital of Nanchang University, Nanchang, Jiangxi 330008, P.R. China
| | - Yuanxiang Peng
- Jiangxi Key Laboratory of Cancer Metastasis and Precision Treatment, Central Laboratory, The Third Affiliated Hospital of Nanchang University, Nanchang, Jiangxi 330008, P.R. China
- Department of Orthopedics, The Third Affiliated Hospital of Nanchang University, Nanchang, Jiangxi 330008, P.R. China
| | - Gaoyang Qu
- Jiangxi Key Laboratory of Cancer Metastasis and Precision Treatment, Central Laboratory, The Third Affiliated Hospital of Nanchang University, Nanchang, Jiangxi 330008, P.R. China
- Department of Orthopedics, The Third Affiliated Hospital of Nanchang University, Nanchang, Jiangxi 330008, P.R. China
| | - Pengyun Wu
- Jiangxi Key Laboratory of Cancer Metastasis and Precision Treatment, Central Laboratory, The Third Affiliated Hospital of Nanchang University, Nanchang, Jiangxi 330008, P.R. China
- Department of Orthopedics, The Third Affiliated Hospital of Nanchang University, Nanchang, Jiangxi 330008, P.R. China
| | - QuanHui Jiao
- College of Pharmacy, Jiangxi University of Chinese Medicine, Nanchang, Jiangxi 330004, P.R. China
| | - Longhua Sun
- Departments of Pulmonary and Critical Care Medicine, The First Affiliated Hospital of Nanchang University, Nanchang, Jiangxi 330006, P.R. China
| | - Xiao-Bin Lv
- Jiangxi Key Laboratory of Cancer Metastasis and Precision Treatment, Central Laboratory, The Third Affiliated Hospital of Nanchang University, Nanchang, Jiangxi 330008, P.R. China
| | - Qi Liao
- Jiangxi Key Laboratory of Cancer Metastasis and Precision Treatment, Central Laboratory, The Third Affiliated Hospital of Nanchang University, Nanchang, Jiangxi 330008, P.R. China
- Department of Orthopedics, The Third Affiliated Hospital of Nanchang University, Nanchang, Jiangxi 330008, P.R. China
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5
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Graham MK, Chikarmane R, Wang R, Vaghasia A, Gupta A, Zheng Q, Wodu B, Pan X, Castagna N, Liu J, Meyers J, Skaist A, Wheelan S, Simons BW, Bieberich C, Nelson WG, DeWeese TL, De Marzo AM, Yegnasubramanian S. Single-cell atlas of epithelial and stromal cell heterogeneity by lobe and strain in the mouse prostate. Prostate 2023; 83:286-303. [PMID: 36373171 DOI: 10.1002/pros.24460] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/09/2022] [Accepted: 10/11/2022] [Indexed: 11/16/2022]
Abstract
BACKGROUND Evaluating the complex interplay of cell types in the tissue microenvironment is critical to understanding the origin and progression of diseases in the prostate and potential opportunities for intervention. Mouse models are an essential tool to investigate the molecular and cell-type-specific contributions of prostate disease at an organismal level. While there are well-documented differences in the extent, timing, and nature of disease development in various genetically engineered and exposure-based mouse models in different mouse strains and prostate lobes within each mouse strain, the underlying molecular phenotypic differences in cell types across mouse strains and prostate lobes are incompletely understood. METHODS In this study, we used single-cell RNA-sequencing (scRNA-seq) methods to assess the single-cell transcriptomes of 6-month-old mouse prostates from two commonly used mouse strains, friend virus B/NIH jackson (FVB/NJ) (N = 2) and C57BL/6J (N = 3). For each mouse, the lobes of the prostate were dissected (anterior, dorsal, lateral, and ventral), and individual scRNA-seq libraries were generated. In situ and pathological analyses were used to explore the spatial and anatomical distributions of novel cell types and molecular markers defining these cell types. RESULTS Data dimensionality reduction and clustering analysis of scRNA-seq data revealed that basal and luminal cells possessed strain-specific transcriptomic differences, with luminal cells also displaying marked lobe-specific differences. Gene set enrichment analysis comparing luminal cells by strain showed enrichment of proto-Oncogene targets in FVB/NJ mice. Additionally, three rare populations of epithelial cells clustered independently of strain and lobe: one population of luminal cells expressing Foxi1 and components of the vacuolar ATPase proton pump (Atp6v0d2 and Atp6v1g3), another population expressing Psca and other stem cell-associated genes (Ly6a/Sca-1, Tacstd2/Trop-2), and a neuroendocrine population expressing Chga, Chgb, and Syp. In contrast, stromal cell clusters, including fibroblasts, smooth muscle cells, endothelial cells, pericytes, and immune cell types, were conserved across strain and lobe, clustering largely by cell type and not by strain or lobe. One notable exception to this was the identification of two distinct fibroblast populations that we term subglandular fibroblasts and interstitial fibroblasts based on their strikingly distinct spatial distribution in the mouse prostate. CONCLUSIONS Altogether, these data provide a practical reference of the transcriptional profiles of mouse prostate from two commonly used mouse strains and across all four prostate lobes.
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Affiliation(s)
- Mindy K Graham
- Department of Radiation Oncology and Molecular Radiation Sciences, Johns Hopkins University, Baltimore, Maryland, USA
- School of Medicine, Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins University, Baltimore, Maryland, USA
| | - Roshan Chikarmane
- School of Medicine, Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins University, Baltimore, Maryland, USA
| | - Rulin Wang
- School of Medicine, Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins University, Baltimore, Maryland, USA
| | - Ajay Vaghasia
- School of Medicine, Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins University, Baltimore, Maryland, USA
| | - Anuj Gupta
- School of Medicine, Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins University, Baltimore, Maryland, USA
| | - Qizhi Zheng
- Department of Pathology, School of Medicine, Johns Hopkins University, Baltimore, Maryland, USA
| | - Bulouere Wodu
- School of Medicine, Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins University, Baltimore, Maryland, USA
| | - Xin Pan
- Department of Neurology, School of Medicine, Johns Hopkins University, Baltimore, Maryland, USA
| | - Nicole Castagna
- School of Medicine, Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins University, Baltimore, Maryland, USA
| | - Jianyong Liu
- School of Medicine, Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins University, Baltimore, Maryland, USA
| | - Jennifer Meyers
- School of Medicine, Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins University, Baltimore, Maryland, USA
| | - Alyza Skaist
- School of Medicine, Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins University, Baltimore, Maryland, USA
| | - Sarah Wheelan
- School of Medicine, Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins University, Baltimore, Maryland, USA
| | - Brian W Simons
- Center for Comparative Medicine, Baylor College of Medicine, Houston, Texas, USA
| | - Charles Bieberich
- Department of Biological Sciences, University of Maryland at Baltimore County, Baltimore, Maryland, USA
| | - William G Nelson
- School of Medicine, Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins University, Baltimore, Maryland, USA
- Department of Pathology, School of Medicine, Johns Hopkins University, Baltimore, Maryland, USA
| | - Theodore L DeWeese
- Department of Radiation Oncology and Molecular Radiation Sciences, Johns Hopkins University, Baltimore, Maryland, USA
- School of Medicine, Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins University, Baltimore, Maryland, USA
| | - Angelo M De Marzo
- School of Medicine, Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins University, Baltimore, Maryland, USA
- Department of Pathology, School of Medicine, Johns Hopkins University, Baltimore, Maryland, USA
| | - Srinivasan Yegnasubramanian
- Department of Radiation Oncology and Molecular Radiation Sciences, Johns Hopkins University, Baltimore, Maryland, USA
- School of Medicine, Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins University, Baltimore, Maryland, USA
- Department of Pathology, School of Medicine, Johns Hopkins University, Baltimore, Maryland, USA
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6
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Barge S, Jade D, Ayyamperumal S, Manna P, Borah J, Nanjan CMJ, Nanjan MJ, Talukdar NC. Potential inhibitors for FKBP51: an in silico study using virtual screening, molecular docking and molecular dynamics simulation. J Biomol Struct Dyn 2022; 40:13799-13811. [PMID: 34709133 DOI: 10.1080/07391102.2021.1994877] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
Over the years, FK506-binding proteins have been targeted for different pharmaceutical interests. The FK506-binding protein, encoded by the FKBP5 gene, is responsible for stress and metabolic-related disorders, including cancer. In addition, the FKBD-I domain of the protein is a potential target for endocrine-related physiological diseases. In the present study, a set of natural compounds from the ZINC database was screened against FKBP51 protein using in silico strategy, namely pharmacophore modeling, molecular docking, and molecular dynamic simulation. A protein-ligand-based pharmacophore model workflow was employed to identify small molecules. The resultant compounds were then assessed for their toxicity using ADMET prediction. Based on ADMET prediction, 4768 compounds were selected for molecular docking to elucidate their binding mode. Based on the binding energy, 857 compounds were selected, and their Similarity Tanimoto coefficient was calculated, followed by clustering according to Jarvis-Patrick clustering methods (Jarp). The clustered singletons resulted in 14 hit compounds. The top 05 hit compounds and 05 known compounds were then subjected to 100 ns MD simulation to check the stability of complexes. The study revealed that the selected complexes are stable throughout the 100 ns simulation; for FKBD-I (4TW6), crystal structure compared with FKBP-51 (1KT0) crystal structure. Finally, the binding free energies of the hit complexes were calculated using molecular mechanics energies combined with Poisson-Boltzmann. The data reveal that all the complexes show negative BFEs, indicating a good affinity of the hit compounds to the protein. The top five compounds are, therefore, potential inhibitors for FKBP51. Communicated by Ramaswamy H. Sarma.
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Affiliation(s)
- Sagar Barge
- Biochemistry and Drug Discovery Lab, Institute of Advanced Study in Science and Technology, Assam, India.,Department of Molecular Biology and Biotechnology, Cotton University, Panbazar, Assam, India
| | - Dhananjay Jade
- Department of Pharmaceutical Chemistry, JSS College of Pharmacy, Ooty, Tamil Nadu, India
| | - Selvaraj Ayyamperumal
- Department of Pharmaceutical Chemistry, JSS College of Pharmacy, Ooty, Tamil Nadu, India
| | - Prasenjit Manna
- Biochemistry and Drug Discovery Lab, Institute of Advanced Study in Science and Technology, Assam, India
| | - Jagat Borah
- Biochemistry and Drug Discovery Lab, Institute of Advanced Study in Science and Technology, Assam, India
| | | | | | - Narayan Chandra Talukdar
- Biochemistry and Drug Discovery Lab, Institute of Advanced Study in Science and Technology, Assam, India.,Assam Down Town University, Panikhaiti, Guwahati, Assam, India
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7
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Asker H, Yilmaz-Oral D, Oztekin CV, Gur S. An update on the current status and future prospects of erectile dysfunction following radical prostatectomy. Prostate 2022; 82:1135-1161. [PMID: 35579053 DOI: 10.1002/pros.24366] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/16/2022] [Revised: 03/30/2022] [Accepted: 04/20/2022] [Indexed: 12/15/2022]
Abstract
BACKGROUND Radical prostatectomy (RP) and radiation treatment are standard options for localized prostate cancer. Even though nerve-sparing techniques have been increasingly utilized in RP, erectile dysfunction (ED) due to neuropraxia remains a frequent complication. Erectile function recovery rates after RP remain unsatisfactory, and many men still suffer despite the availability of various therapies. OBJECTIVE This systematic review aims to summarize the current treatments for post-RP-ED, assess the underlying pathological mechanisms, and emphasize promising therapeutic strategies based on the evidence from basic research. METHOD Evaluation and review of articles on the relevant topic published between 2010 and 2021, which are indexed and listed in the PubMed database. RESULTS Phosphodiesterase type 5 inhibitors, intracavernosal and intraurethral injections, vacuum erection devices, pelvic muscle training, and surgical procedures are utilized for penile rehabilitation. Clinical trials evaluating the efficacy of erectogenic drugs in this setting are conflicting and far from being conclusive. The use of androgen deprivation therapy in certain scenarios after RP further exacerbates the already problematic situation and emphasizes the need for effective treatment strategies. CONCLUSION This article is a detailed overview focusing on the pathophysiology and mechanism of the nerve injury developed during RP and a compilation of various strategies to induce cavernous nerve regeneration to improve erectile function (EF). These strategies include stem cell therapy, gene therapy, growth factors, low-intensity extracorporeal shockwave therapy, immunophilins, and various pharmacological approaches that have induced improvements in EF in experimental models of cavernous nerve injury. Many of the mentioned strategies can improve EF following RP if transformed into clinically applicable safe, and effective techniques with reproducible outcomes.
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Affiliation(s)
- Heba Asker
- Department of Pharmacology, Faculty of Pharmacy, Ankara University, Ankara, Turkey
- Department of Medical Pharmacology, Faculty of Medicine, Lokman Hekim University, Ankara, Turkey
- Graduate School of Health Sciences, Ankara University, Ankara, Turkey
| | - Didem Yilmaz-Oral
- Department of Pharmacology, Faculty of Pharmacy, Cukurova University, Adana, Turkey
| | - Cetin Volkan Oztekin
- Department of Urology, Faculty of Medicine, University of Kyrenia, Girne, Turkey
| | - Serap Gur
- Department of Pharmacology, Faculty of Pharmacy, Ankara University, Ankara, Turkey
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8
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Preisendörfer S, Ishikawa Y, Hennen E, Winklmeier S, Schupp JC, Knüppel L, Fernandez IE, Binzenhöfer L, Flatley A, Juan-Guardela BM, Ruppert C, Guenther A, Frankenberger M, Hatz RA, Kneidinger N, Behr J, Feederle R, Schepers A, Hilgendorff A, Kaminski N, Meinl E, Bächinger HP, Eickelberg O, Staab-Weijnitz CA. FK506-Binding Protein 11 Is a Novel Plasma Cell-Specific Antibody Folding Catalyst with Increased Expression in Idiopathic Pulmonary Fibrosis. Cells 2022; 11:1341. [PMID: 35456020 PMCID: PMC9027113 DOI: 10.3390/cells11081341] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2022] [Revised: 04/08/2022] [Accepted: 04/12/2022] [Indexed: 02/01/2023] Open
Abstract
Antibodies are central effectors of the adaptive immune response, widespread used therapeutics, but also potentially disease-causing biomolecules. Antibody folding catalysts in the plasma cell are incompletely defined. Idiopathic pulmonary fibrosis (IPF) is a fatal chronic lung disease with increasingly recognized autoimmune features. We found elevated expression of FK506-binding protein 11 (FKBP11) in IPF lungs where FKBP11 specifically localized to antibody-producing plasma cells. Suggesting a general role in plasma cells, plasma cell-specific FKBP11 expression was equally observed in lymphatic tissues, and in vitro B cell to plasma cell differentiation was accompanied by induction of FKBP11 expression. Recombinant human FKBP11 was able to refold IgG antibody in vitro and inhibited by FK506, strongly supporting a function as antibody peptidyl-prolyl cis-trans isomerase. Induction of ER stress in cell lines demonstrated induction of FKBP11 in the context of the unfolded protein response in an X-box-binding protein 1 (XBP1)-dependent manner. While deficiency of FKBP11 increased susceptibility to ER stress-mediated cell death in an alveolar epithelial cell line, FKBP11 knockdown in an antibody-producing hybridoma cell line neither induced cell death nor decreased expression or secretion of IgG antibody. Similarly, antibody secretion by the same hybridoma cell line was not affected by knockdown of the established antibody peptidyl-prolyl isomerase cyclophilin B. The results are consistent with FKBP11 as a novel XBP1-regulated antibody peptidyl-prolyl cis-trans isomerase and indicate significant redundancy in the ER-resident folding machinery of antibody-producing hybridoma cells.
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Affiliation(s)
- Stefan Preisendörfer
- Institute of Lung Health and Immunity and Comprehensive Pneumology Center with the CPC-M bioArchive, Member of the German Center of Lung Research (DZL), Helmholtz-Zentrum München, 81377 Munich, Germany; (S.P.); (E.H.); (L.K.); (I.E.F.); (L.B.); (M.F.); (A.H.); (O.E.)
| | - Yoshihiro Ishikawa
- Department of Biochemistry and Molecular Biology, Oregon Health & Science University, Portland, OR 97239, USA; (Y.I.); (H.P.B.)
| | - Elisabeth Hennen
- Institute of Lung Health and Immunity and Comprehensive Pneumology Center with the CPC-M bioArchive, Member of the German Center of Lung Research (DZL), Helmholtz-Zentrum München, 81377 Munich, Germany; (S.P.); (E.H.); (L.K.); (I.E.F.); (L.B.); (M.F.); (A.H.); (O.E.)
| | - Stephan Winklmeier
- Institute of Clinical Neuroimmunology, Biomedical Center and LMU Klinikum, Ludwig-Maximilians-Universität München, 81377 Munich, Germany; (S.W.); (E.M.)
| | - Jonas C. Schupp
- Pulmonary, Critical Care and Sleep Medicine, Yale School of Medicine, New Haven, CT 06520, USA; (J.C.S.); (B.M.J.-G.); (N.K.)
- Department of Respiratory Medicine, Hannover Medical School, Biomedical Research in End-Stage and Obstructive Lung Disease Hannover, Member of the German Center for Lung Research (DZL), 30625 Hannover, Germany
| | - Larissa Knüppel
- Institute of Lung Health and Immunity and Comprehensive Pneumology Center with the CPC-M bioArchive, Member of the German Center of Lung Research (DZL), Helmholtz-Zentrum München, 81377 Munich, Germany; (S.P.); (E.H.); (L.K.); (I.E.F.); (L.B.); (M.F.); (A.H.); (O.E.)
| | - Isis E. Fernandez
- Institute of Lung Health and Immunity and Comprehensive Pneumology Center with the CPC-M bioArchive, Member of the German Center of Lung Research (DZL), Helmholtz-Zentrum München, 81377 Munich, Germany; (S.P.); (E.H.); (L.K.); (I.E.F.); (L.B.); (M.F.); (A.H.); (O.E.)
- Department of Medicine V, LMU Klinikum, Ludwig-Maximilians-Universität München, Member of the German Center of Lung Research (DZL), 81377 Munich, Germany; (N.K.); (J.B.)
| | - Leonhard Binzenhöfer
- Institute of Lung Health and Immunity and Comprehensive Pneumology Center with the CPC-M bioArchive, Member of the German Center of Lung Research (DZL), Helmholtz-Zentrum München, 81377 Munich, Germany; (S.P.); (E.H.); (L.K.); (I.E.F.); (L.B.); (M.F.); (A.H.); (O.E.)
| | - Andrew Flatley
- Monoclonal Antibody Core Facility, Institute for Diabetes and Obesity, Helmholtz-Zentrum München, 85764 Neuherberg, Germany; (A.F.); (R.F.); (A.S.)
| | - Brenda M. Juan-Guardela
- Pulmonary, Critical Care and Sleep Medicine, Yale School of Medicine, New Haven, CT 06520, USA; (J.C.S.); (B.M.J.-G.); (N.K.)
| | - Clemens Ruppert
- Department of Internal Medicine, Medizinische Klinik II, Member of the German Center of Lung Research (DZL), 35392 Giessen, Germany; (C.R.); (A.G.)
| | - Andreas Guenther
- Department of Internal Medicine, Medizinische Klinik II, Member of the German Center of Lung Research (DZL), 35392 Giessen, Germany; (C.R.); (A.G.)
| | - Marion Frankenberger
- Institute of Lung Health and Immunity and Comprehensive Pneumology Center with the CPC-M bioArchive, Member of the German Center of Lung Research (DZL), Helmholtz-Zentrum München, 81377 Munich, Germany; (S.P.); (E.H.); (L.K.); (I.E.F.); (L.B.); (M.F.); (A.H.); (O.E.)
| | - Rudolf A. Hatz
- Thoraxchirurgisches Zentrum, Klinik für Allgemeine-, Viszeral-, Transplantations-, Gefäß- und Thoraxchirurgie, LMU Klinikum, Ludwig-Maximilians-Universität München, 81377 Munich, Germany;
- Asklepios Fachkliniken München-Gauting, 82131 Gauting, Germany
| | - Nikolaus Kneidinger
- Department of Medicine V, LMU Klinikum, Ludwig-Maximilians-Universität München, Member of the German Center of Lung Research (DZL), 81377 Munich, Germany; (N.K.); (J.B.)
| | - Jürgen Behr
- Department of Medicine V, LMU Klinikum, Ludwig-Maximilians-Universität München, Member of the German Center of Lung Research (DZL), 81377 Munich, Germany; (N.K.); (J.B.)
| | - Regina Feederle
- Monoclonal Antibody Core Facility, Institute for Diabetes and Obesity, Helmholtz-Zentrum München, 85764 Neuherberg, Germany; (A.F.); (R.F.); (A.S.)
| | - Aloys Schepers
- Monoclonal Antibody Core Facility, Institute for Diabetes and Obesity, Helmholtz-Zentrum München, 85764 Neuherberg, Germany; (A.F.); (R.F.); (A.S.)
| | - Anne Hilgendorff
- Institute of Lung Health and Immunity and Comprehensive Pneumology Center with the CPC-M bioArchive, Member of the German Center of Lung Research (DZL), Helmholtz-Zentrum München, 81377 Munich, Germany; (S.P.); (E.H.); (L.K.); (I.E.F.); (L.B.); (M.F.); (A.H.); (O.E.)
| | - Naftali Kaminski
- Pulmonary, Critical Care and Sleep Medicine, Yale School of Medicine, New Haven, CT 06520, USA; (J.C.S.); (B.M.J.-G.); (N.K.)
| | - Edgar Meinl
- Institute of Clinical Neuroimmunology, Biomedical Center and LMU Klinikum, Ludwig-Maximilians-Universität München, 81377 Munich, Germany; (S.W.); (E.M.)
| | - Hans Peter Bächinger
- Department of Biochemistry and Molecular Biology, Oregon Health & Science University, Portland, OR 97239, USA; (Y.I.); (H.P.B.)
| | - Oliver Eickelberg
- Institute of Lung Health and Immunity and Comprehensive Pneumology Center with the CPC-M bioArchive, Member of the German Center of Lung Research (DZL), Helmholtz-Zentrum München, 81377 Munich, Germany; (S.P.); (E.H.); (L.K.); (I.E.F.); (L.B.); (M.F.); (A.H.); (O.E.)
| | - Claudia A. Staab-Weijnitz
- Institute of Lung Health and Immunity and Comprehensive Pneumology Center with the CPC-M bioArchive, Member of the German Center of Lung Research (DZL), Helmholtz-Zentrum München, 81377 Munich, Germany; (S.P.); (E.H.); (L.K.); (I.E.F.); (L.B.); (M.F.); (A.H.); (O.E.)
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Chambraud B, Byrne C, Meduri G, Baulieu EE, Giustiniani J. FKBP52 in Neuronal Signaling and Neurodegenerative Diseases: A Microtubule Story. Int J Mol Sci 2022; 23:ijms23031738. [PMID: 35163662 PMCID: PMC8836061 DOI: 10.3390/ijms23031738] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2021] [Revised: 01/24/2022] [Accepted: 01/28/2022] [Indexed: 02/06/2023] Open
Abstract
The FK506-binding protein 52 (FKBP52) belongs to a large family of ubiquitously expressed and highly conserved proteins (FKBPs) that share an FKBP domain and possess Peptidyl-Prolyl Isomerase (PPIase) activity. PPIase activity catalyzes the isomerization of Peptidyl-Prolyl bonds and therefore influences target protein folding and function. FKBP52 is particularly abundant in the nervous system and is partially associated with the microtubule network in different cell types suggesting its implication in microtubule function. Various studies have focused on FKBP52, highlighting its importance in several neuronal microtubule-dependent signaling pathways and its possible implication in neurodegenerative diseases such as tauopathies (i.e., Alzheimer disease) and alpha-synucleinopathies (i.e., Parkinson disease). This review summarizes our current understanding of FKBP52 actions in the microtubule environment, its implication in neuronal signaling and function, its interactions with other members of the FKBPs family and its involvement in neurodegenerative disease.
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Affiliation(s)
- Béatrice Chambraud
- INSERM U1195, Université Paris-Saclay, 80 Rue du Général Leclerc, 94276 Kremlin-Bicêtre, France;
| | - Cillian Byrne
- Institut Professeur Baulieu, 80 Rue du Général Leclerc, 94276 Kremlin-Bicêtre, France; (C.B.); (G.M.)
- Laboratoire des Biomolécules, LBM7203, CNRS, École Normale Supérieure, PSL University, Sorbonne Université, 75005 Paris, France
| | - Geri Meduri
- Institut Professeur Baulieu, 80 Rue du Général Leclerc, 94276 Kremlin-Bicêtre, France; (C.B.); (G.M.)
| | - Etienne Emile Baulieu
- INSERM U1195, Université Paris-Saclay, 80 Rue du Général Leclerc, 94276 Kremlin-Bicêtre, France;
- Institut Professeur Baulieu, 80 Rue du Général Leclerc, 94276 Kremlin-Bicêtre, France; (C.B.); (G.M.)
- Correspondence: (E.E.B.); (J.G.); Tel.: +33-1-49-59-18-72 (J.G.); Fax: +33-1-49-59-92-03 (J.G.)
| | - Julien Giustiniani
- INSERM U1195, Université Paris-Saclay, 80 Rue du Général Leclerc, 94276 Kremlin-Bicêtre, France;
- Institut Professeur Baulieu, 80 Rue du Général Leclerc, 94276 Kremlin-Bicêtre, France; (C.B.); (G.M.)
- Correspondence: (E.E.B.); (J.G.); Tel.: +33-1-49-59-18-72 (J.G.); Fax: +33-1-49-59-92-03 (J.G.)
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10
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Qiu L, Liu H, Wang S, Dai XH, Shang JW, Lian XL, Wang GH, Zhang J. FKBP11 promotes cell proliferation and tumorigenesis via p53-related pathways in oral squamous cell carcinoma. Biochem Biophys Res Commun 2021; 559:183-190. [PMID: 33945996 DOI: 10.1016/j.bbrc.2021.04.096] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2021] [Accepted: 04/21/2021] [Indexed: 12/24/2022]
Abstract
Oral squamous cell carcinoma (OSCC) is one of the causes of cancer-related death worldwide. The abnormal proliferation ability of OSCC has become one of the major reasons for its poor prognosis. FK-506 binding protein 11 (FKBP11) is abnormally expressed in malignant tumors and affects many biological processes. The purpose of this study is to investigate the effect of FKBP11 on cell proliferation in OSCC and explore the possible regulatory mechanism. The expression of FKBP11 was detected by western blotting (WB) and/or real-time PCR in OSCC and paracancerous normal tissues in tongue squamous cell carcinoma (TSCC) cell lines, revealing high expression in OSCC and CAL-27 cells. Furthermore, FKBP11 knockdown inhibited the proliferation of CAL-27 cells by CCK-8 and colony formation assays. G2/M arrest and induction of apoptosis were observed using flow cytometry, Hoechst 33258 and Calcein-AM/PI staining, accompanied by changes in some cell cycle- and apoptosis-related proteins, including CDK1, Cyclin B1, p21, p27, p53, Bax, Bcl-2 and Caspase-3. Additionally, the expression of these proteins can be reversed by the use of pifithrin-α (PFT-α), a p53 inhibitor. An in vivo xenograft model further confirmed that FKBP11 enhanced OSCC progression. In conclusion, FKBP11 could promote cell proliferation by regulating G2/M phase and apoptosis via the p53/p21/p27 and p53/Bcl-2/Bax pathways, respectively, which suggests that it may be a new candidate target for the treatment of OSCC.
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Affiliation(s)
- Lin Qiu
- School of Medicine, Nankai University, Tianjin, 300071, China; Department of Oral and Maxillofacial Surgery, Tianjin Stomatological Hospital, School of Medicine, Nankai University, Tianjin, 300041, China; Tianjin Key Laboratory of Oral and Maxillofacial Function Reconstruction, Tianjin, 300041, China
| | - Han Liu
- School of Medicine, Nankai University, Tianjin, 300071, China; Department of Oral and Maxillofacial Surgery, Tianjin Stomatological Hospital, School of Medicine, Nankai University, Tianjin, 300041, China; Tianjin Key Laboratory of Oral and Maxillofacial Function Reconstruction, Tianjin, 300041, China
| | - Shuang Wang
- Department of Oral and Maxillofacial Surgery, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, 510275, China
| | - Xiao-Hua Dai
- Tianjin Key Laboratory of Oral and Maxillofacial Function Reconstruction, Tianjin, 300041, China; Central Laboratory of Tianjin Stomatological Hospital, School of Medicine, Nankai University, Tianjin, 300041, China
| | - Jian-Wei Shang
- Tianjin Key Laboratory of Oral and Maxillofacial Function Reconstruction, Tianjin, 300041, China; Department of Oral Histopathology, Tianjin Stomatological Hospital, School of Medicine, Nankai University, Tianjin, 300041, China
| | - Xiao-Li Lian
- Tianjin Key Laboratory of Oral and Maxillofacial Function Reconstruction, Tianjin, 300041, China; Central Laboratory of Tianjin Stomatological Hospital, School of Medicine, Nankai University, Tianjin, 300041, China
| | - Guan-Hua Wang
- Tianjin Key Laboratory of Oral and Maxillofacial Function Reconstruction, Tianjin, 300041, China; Central Laboratory of Tianjin Stomatological Hospital, School of Medicine, Nankai University, Tianjin, 300041, China
| | - Jun Zhang
- Department of Oral and Maxillofacial Surgery, Tianjin Stomatological Hospital, School of Medicine, Nankai University, Tianjin, 300041, China; Tianjin Key Laboratory of Oral and Maxillofacial Function Reconstruction, Tianjin, 300041, China.
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11
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Wang W, Li Q, Huang G, Lin BY, Lin D, Ma Y, Zhang Z, Chen T, Zhou J. Tandem Mass Tag-Based Proteomic Analysis of Potential Biomarkers for Hepatocellular Carcinoma Differentiation. Onco Targets Ther 2021; 14:1007-1020. [PMID: 33603407 PMCID: PMC7886252 DOI: 10.2147/ott.s273823] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2020] [Accepted: 01/28/2021] [Indexed: 01/27/2023] Open
Abstract
Purpose The poor prognosis of hepatocellular carcinoma (HCC) urgent us to discover early and effective biomarkers. In this study, we applied tandem mass tag (TMT)-based proteomic analysis to discover potential protein markers for HCC identification and differentiation. Patients and Methods Fifteen patients, well-differentiated (G1, N = 5), moderate-differentiated (G2, N = 5), and poorly differentiated (G3, N = 5), with 30 matched pair tissues (both tumor and adjacent non-tumor tissues derived from the same patient) were enrolled. All samples were subjected to TMT labeling and LC−MS/MS analysis. The identified proteins were subsequently assigned to GO and KEGG for predicting function. The identified protein candidates were validated using immunohistochemistry (IHC). Results A total of 1010 proteins were identified. Of these, 154 differentially expressed proteins (DEPs), 100 up-regulated and 54 down-regulated, were found between tumor and adjacent non-tumor tissues; 12 DEPs, 9 up-regulated and 3 down-regulated, were found between G1 and G3 tissues; 8 DEPs, 5 up-regulated and 3 down-regulated, were found between G1 and G2 tissues; 11 DEPs, 8 up-regulated and 3 down-regulated, were found between G2 and G3 tissues. Among them, ASS1 and CPS1 were significantly up-regulated while UROD and HBB were significantly down-regulated in G3 compared with G1 and G2 tumors. Three proteins, CYB5A, FKBP11 and YBX1, were significantly up-regulated in G1 compared with both G2 and G3 tumors. The 7 biomarker candidates were further verified by IHC. Conclusion A variety of DEPs related to the histological differentiation of HCC were identified, among which ASS1, CPS1, URPD and HBB proteins were potential biomarkers for distinguishing poorly differentiated HCC, while CYB5A, FKBP11 and YBX1 were potential biomarkers for distinguishing well-differentiated HCC. Our findings may further provide a new insight facilitating the diagnosis and prognosis of HCC.
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Affiliation(s)
- Wei Wang
- Department of Laboratory, Foshan Fourth People's Hospital, Foshan, 528000, People's Republic of China
| | - Qiang Li
- Department of General Surgery, The First Affiliated Hospital of Jinan University, Guangzhou, 510000, People's Republic of China
| | - Ge Huang
- Intensive Care Unit, Foshan Fourth People's Hospital, Foshan, 528000, People's Republic of China
| | - Bing-Yao Lin
- Department of Laboratory, Foshan Fourth People's Hospital, Foshan, 528000, People's Republic of China
| | - Dongzi Lin
- Department of Laboratory, Foshan Fourth People's Hospital, Foshan, 528000, People's Republic of China
| | - Yan Ma
- Department of Laboratory, Foshan Fourth People's Hospital, Foshan, 528000, People's Republic of China
| | - Zhao Zhang
- Research and Development Centre, South China Institute of Biomedicine, Guangdonglongsee Biomedical Co., Ltd, Guangzhou, 510000, People's Republic of China
| | - Tao Chen
- Department of Laboratory, Foshan Fourth People's Hospital, Foshan, 528000, People's Republic of China
| | - Jie Zhou
- Department of Laboratory, Foshan Fourth People's Hospital, Foshan, 528000, People's Republic of China
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Effect of immunosuppressants on a mouse model of osteogenesis imperfecta type V harboring a heterozygous Ifitm5 c.-14C > T mutation. Sci Rep 2020; 10:21197. [PMID: 33273604 PMCID: PMC7713238 DOI: 10.1038/s41598-020-78403-1] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2020] [Accepted: 11/19/2020] [Indexed: 01/08/2023] Open
Abstract
Osteogenesis imperfecta (OI) type V is an autosomal dominant disorder caused by the c.-14C > T mutation in the interferon-induced transmembrane protein 5 gene (IFITM5), however, its onset mechanism remains unclear. In this study, heterozygous c.-14C > T mutant mice were developed to investigate the effect of immunosuppressants (FK506 and rapamycin) on OI type V. Among the mosaic mice generated by Crispr/Cas9-based technology, mice with less than 40% mosaic ratio of c.-14C > T mutation survived, whereas those with more than 48% mosaic ratio exhibited lethal skeletal abnormalities with one exception. All heterozygous mutants obtained by mating mosaic mice with wild-type mice exhibited a perinatal lethal phenotype due to severe skeletal abnormalities. Administration of FK506, a calcineurin inhibitor, in the heterozygous fetuses improved bone mineral content (BMC) of the neonates, although it did not save the neonates from the lethal effects of the mutation, whereas rapamycin, an mTOR inhibitor, reduced BMC, suggesting that mTOR signaling is involved in the bone mineralization of heterozygous mutants. These findings could clarify certain aspects of the onset mechanism of OI type V and enable development of therapeutics for this condition.
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Tarczewska A, Wycisk K, Orłowski M, Waligórska A, Dobrucki J, Drewniak-Świtalska M, Berlicki Ł, Ożyhar A. Nuclear immunophilin FKBP39 from Drosophila melanogaster drives spontaneous liquid-liquid phase separation. Int J Biol Macromol 2020; 163:108-119. [PMID: 32615218 DOI: 10.1016/j.ijbiomac.2020.06.255] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2020] [Revised: 06/25/2020] [Accepted: 06/26/2020] [Indexed: 11/27/2022]
Abstract
The FKBP39 from Drosophila melanogaster is a multifunctional regulatory immunophilin. It contains two globular domains linked by a highly charged disordered region. The N-terminal domain shows homology to the nucleoplasmin core domain, and the C-terminal domain is characteristic for the family of the FKBP immunophilin ligand binding domain. The specific partially disordered structure of the protein inspired us to investigate whether FKBP39 can drive spontaneous liquid-liquid phase separation (LLPS). Preliminary analyses using CatGranule and Pi-Pi contact predictors suggested a propensity for LLPS. Microscopy observations revealed that FKBP39 can self-concentrate to form liquid condensates. We also found that FKBP39 can lead to LLPS in the presence of RNA and peptides containing Arg-rich linear motifs derived from selected nuclear and nucleolar proteins. These heterotypic interactions have a stronger propensity for driving LLPS when compared to the interactions mediated by self-associating FKBP39 molecules. To investigate whether FKBP39 can drive LLPS in the cellular environment, we analysed it in fusion with YFP in COS-7 cells. The specific distribution and diffusion kinetics of FKBP39 examined by FRAP experiments provided evidence that immunophilin is an important driver of phase separation. The ability of FKBP39 to go into heterotypic interaction may be fundamental for ribosome subunits assembly.
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Affiliation(s)
- Aneta Tarczewska
- Department of Biochemistry, Molecular Biology and Biotechnology, Faculty of Chemistry, Wroclaw University of Science and Technology, Wybrzeże Wyspiańskiego 27, 50-370 Wroclaw, Poland.
| | - Krzysztof Wycisk
- Department of Biochemistry, Molecular Biology and Biotechnology, Faculty of Chemistry, Wroclaw University of Science and Technology, Wybrzeże Wyspiańskiego 27, 50-370 Wroclaw, Poland
| | - Marek Orłowski
- Department of Biochemistry, Molecular Biology and Biotechnology, Faculty of Chemistry, Wroclaw University of Science and Technology, Wybrzeże Wyspiańskiego 27, 50-370 Wroclaw, Poland
| | - Agnieszka Waligórska
- Department of Cell Biophysics, Faculty of Biochemistry, Biophysics and Biotechnology, Jagiellonian University, 30-387 Krakow, Poland
| | - Jurek Dobrucki
- Department of Cell Biophysics, Faculty of Biochemistry, Biophysics and Biotechnology, Jagiellonian University, 30-387 Krakow, Poland
| | - Magda Drewniak-Świtalska
- Department of Bioorganic Chemistry, Faculty of Chemistry, Wroclaw University of Science and Technology, Wybrzeże Wyspiańskiego 27, 50-370 Wroclaw, Poland
| | - Łukasz Berlicki
- Department of Bioorganic Chemistry, Faculty of Chemistry, Wroclaw University of Science and Technology, Wybrzeże Wyspiańskiego 27, 50-370 Wroclaw, Poland
| | - Andrzej Ożyhar
- Department of Biochemistry, Molecular Biology and Biotechnology, Faculty of Chemistry, Wroclaw University of Science and Technology, Wybrzeże Wyspiańskiego 27, 50-370 Wroclaw, Poland
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Shen Z, Tang Y, Song Y, Shen W, Zou C. Differences of DNA methylation patterns in the placenta of large for gestational age infant. Medicine (Baltimore) 2020; 99:e22389. [PMID: 32991460 PMCID: PMC7523834 DOI: 10.1097/md.0000000000022389] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
Abstract
To investigate the molecular mechanisms of later metabolic health changes in large for gestational age (LGA) newborns by analyzing deoxyribonucleic acid (DNA) methylation patterns in the placenta of LGA and appropriate for gestational age (AGA) newborns.A total of 6 placentas of LGA and 6 placentas of AGA newborns were enrolled as LGA group and AGA group. DNA methylation was analyzed using the Illumina Infinium Human MethylationEPIC BeadChip microarrays and verified via pyrosequencing and reverse transcription-quantitative real-time polymerase chain reaction. Functional enrichment analysis were constructed by gene ontology and Kyoto Encyclopedia of Genes and Genomes pathway analysis based on the differentially methylated regions between LGA and AGA groups.Clinical investigation showed that LGA newborns had significantly lower hemoglobin and blood glucose compared to AGA newborns. Birth weight was negatively correlated to hemoglobin and blood glucose. Genome-wide DNA methylation analysis identified 17 244 methylation variable positions achieving genome-wide significance (adjusted P < .05). 34% methylation variable positions were located in the gene promoter region. A total of 117 differentially methylated regions were revealed by bump hunting analysis, which mapped to 107 genes. Function analysis showed 13 genes enriched in "adhesion and infection process, endocrine and other factor-regulated calcium reabsorption, calcium signaling pathway and transmembrane transport". Four genes linked to type II diabetes mellitus. Among the 13 genes, we selected GNAS and calcium voltage-gated channel subunit alpha1 G for independent verification of pyrosequencing, and the messenger ribonucleic acid levels of guanine nucleotide binding protein, calcium voltage-gated channel subunit alpha1 G, DECR1, and FK506 binding protein 11 were verified by reverse transcription-quantitative real-time polymerase chain reaction.DNA methylation variation and gene expression differences in placental samples were associated with LGA newborns, which linking the effect of intrauterine environment to regulation of the offspring's gene expression. Furthermore, pathway analysis suggested that intrauterine environment affecting fetal growth might had a functional impact on multiple signaling pathways involved in fetal growth, metabolism, and inflammation. Further studies were required to understand the differences of methylation patterns.
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Affiliation(s)
- Zheng Shen
- Department of Clinical laboratory, Zhejiang University School of Medicine Children's Hospital
- National Clinical Research Center for Child Health
| | - Yanfei Tang
- Department of Endocrinology, Zhejiang University School of Medicine Children's Hospital
- Second Hospital of Jiaxing
| | - Yemei Song
- Department of Endocrinology, Zhejiang University School of Medicine Children's Hospital
- Huzhou Central Hospital
| | - Wenxia Shen
- Department of Endocrinology, Zhejiang University School of Medicine Children's Hospital
- Women and Children's Hospital of Shaoxin
| | - Chaochun Zou
- National Clinical Research Center for Child Health
- Department of Endocrinology, Zhejiang University School of Medicine Children's Hospital
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15
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Cao M, Zhang J, Xu H, Lin Z, Chang H, Wang Y, Huang X, Chen X, Wang H, Song Y. Identification and Development of a Novel 4-Gene Immune-Related Signature to Predict Osteosarcoma Prognosis. Front Mol Biosci 2020; 7:608368. [PMID: 33425993 PMCID: PMC7785859 DOI: 10.3389/fmolb.2020.608368] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2020] [Accepted: 11/24/2020] [Indexed: 12/22/2022] Open
Abstract
Osteosarcoma (OS) is a malignant disease that develops rapidly and is associated with poor prognosis. Immunotherapy may provide new insights into clinical treatment strategies for OS. The purpose of this study was to identify immune-related genes that could predict OS prognosis. The gene expression profiles and clinical data of 84 OS patients were obtained from the Therapeutically Applicable Research to Generate Effective Treatments (TARGET) database. According to non-negative matrix factorization, two molecular subtypes of immune-related genes, C1 and C2, were acquired, and 597 differentially expressed genes between C1 and C2 were identified. Univariate Cox analysis was performed to get 14 genes associated with survival, and 4 genes (GJA5, APBB1IP, NPC2, and FKBP11) obtained through least absolute shrinkage and selection operator (LASSO)-Cox regression were used to construct a 4-gene signature as a prognostic risk model. The results showed that high FKBP11 expression was correlated with high risk (a risk factor), and that high GJA5, APBB1IP, or NPC2 expression was associated with low risk (protective factors). The testing cohort and entire TARGET cohort were used for internal verification, and the independent GSE21257 cohort was used for external validation. The study suggested that the model we constructed was reliable and performed well in predicting OS risk. The functional enrichment of the signature was studied through gene set enrichment analysis, and it was found that the risk score was related to the immune pathway. In summary, our comprehensive study found that the 4-gene signature could be used to predict OS prognosis, and new biomarkers of great significance for understanding the therapeutic targets of OS were identified.
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Affiliation(s)
- Mingde Cao
- Department of Orthopedics, The First Affiliated Hospital of Guangdong Pharmaceutical University, Guangzhou, China
- Department of Orthopaedics and Traumatology, Faculty of Medicine, The Chinese University of Hong Kong, Shatin, Hong Kong
| | - Junhui Zhang
- Department of Orthopedics, The First Affiliated Hospital of Guangdong Pharmaceutical University, Guangzhou, China
| | - Hualiang Xu
- Department of Orthopedics, The First Affiliated Hospital of Guangdong Pharmaceutical University, Guangzhou, China
| | - Zhujian Lin
- Department of Orthopedics, The First Affiliated Hospital of Guangdong Pharmaceutical University, Guangzhou, China
| | - Hong Chang
- Department of Orthopedics, The First Affiliated Hospital of Guangdong Pharmaceutical University, Guangzhou, China
| | - Yuchen Wang
- Department of Orthopedics, The First Affiliated Hospital of Guangdong Pharmaceutical University, Guangzhou, China
| | - Xusheng Huang
- Department of Orthopedics, The First Affiliated Hospital of Guangdong Pharmaceutical University, Guangzhou, China
| | - Xiang Chen
- Department of Orthopedics, The First Affiliated Hospital of Guangdong Pharmaceutical University, Guangzhou, China
| | - Hua Wang
- Department of Orthopedics, The First Affiliated Hospital of Guangdong Pharmaceutical University, Guangzhou, China
| | - Yancheng Song
- Department of Orthopedics, The First Affiliated Hospital of Guangdong Pharmaceutical University, Guangzhou, China
- *Correspondence: Yancheng Song
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Öktem EK, Yazar M, Gulfidan G, Arga KY. Cancer Drug Repositioning by Comparison of Gene Expression in Humans and Axolotl (Ambystoma mexicanum) During Wound Healing. ACTA ACUST UNITED AC 2019; 23:389-405. [DOI: 10.1089/omi.2019.0093] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Elif Kubat Öktem
- Department of Genetics and Bioengineering, Istanbul Okan University, Istanbul, Turkey
| | - Metin Yazar
- Department of Genetics and Bioengineering, Istanbul Okan University, Istanbul, Turkey
- Department of Bioengineering, Marmara University, Istanbul, Turkey
| | - Gizem Gulfidan
- Department of Bioengineering, Marmara University, Istanbul, Turkey
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Wang X, Cui X, Zhu C, Li M, Zhao J, Shen Z, Shan X, Wang L, Wu H, Shen Y, Ni Y, Zhang D, Zhou G. FKBP11 protects intestinal epithelial cells against inflammation‑induced apoptosis via the JNK‑caspase pathway in Crohn's disease. Mol Med Rep 2018; 18:4428-4438. [PMID: 30221722 PMCID: PMC6172375 DOI: 10.3892/mmr.2018.9485] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2017] [Accepted: 07/31/2018] [Indexed: 12/12/2022] Open
Abstract
Endoplasmic reticulum (ER) stress in intestinal epithelial cells (IECs) has an important role in the pathogenesis of Crohn's disease (CD). FK506 binding protein 11 (FKBP11), a member of the peptidyl‑prolyl cis‑trans isomerase family, is involved in the unfolded protein response (UPR) and is closely associated with inflammation. Previous bioinformatics analysis revealed a potential association between FKBP11 and human CD. Thus, the present study aimed to investigate the potential significance of FKBP11 in IEC homeostasis and CD. In the present study, increased expression of FKBP11 was detected in the intestinal inflammatory tissues of patients with CD. Furthermore, the results of the present study revealed that overexpression of FKBP11 was accompanied by increased expression levels of the ER stress marker 78 kDa glucose‑regulated protein in the colon tissues of a 2, 4, 6‑trinitrobenzenesulphonic acid‑induced mouse colitis model. Using interferon‑γ (IFN‑γ)/tumor necrosis factor‑α (TNF‑α)‑stimulated IECs as an ER stress and apoptosis cell model, the associated of FKBP11 with ER stress and apoptosis levels was confirmed in IECs. Overexpression of FKBP11 was revealed to significantly attenuate the elevated expression of pro‑apoptotic proteins (Bcl2 associated X apoptosis regulator, caspase‑12 and active caspase‑3), suppress the phosphorylation of c‑Jun N‑terminal kinase (JNK), and decrease apoptosis of IFN‑γ/TNF‑α stimulated IECs. Knockdown of FKBP11 by transfection with small interfering RNA further validated the aforementioned results. In conclusion, these results suggest that the UPR protein FKBP11 may protect IECs against IFN‑γ/TNF‑α induced apoptosis by inhibiting the ER stress‑associated JNK/caspase apoptotic pathway in CD.
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Affiliation(s)
- Xiaotong Wang
- Department of Hepatology and Gastroenterology, The Fifth's People's Hospital of Suzhou, Suzhou, Jiangsu 215000, P.R. China
| | - Xiaopeng Cui
- Department of General Surgery, Affiliated Hospital of Nantong University, Nantong, Jiangsu 226001, P.R. China
| | - Chuanwu Zhu
- Department of Hepatology and Gastroenterology, The Fifth's People's Hospital of Suzhou, Suzhou, Jiangsu 215000, P.R. China
| | - Ming Li
- Department of Hepatology and Gastroenterology, The Fifth's People's Hospital of Suzhou, Suzhou, Jiangsu 215000, P.R. China
| | - Juan Zhao
- Department of Gastroenterology, Affiliated Hospital of Nantong University, Nantong, Jiangsu 226001, P.R. China
| | - Zhongyi Shen
- Department of Gastroenterology, Affiliated Hospital of Nantong University, Nantong, Jiangsu 226001, P.R. China
| | - Xiaohang Shan
- Department of Gastroenterology, Affiliated Hospital of Nantong University, Nantong, Jiangsu 226001, P.R. China
| | - Liang Wang
- Department of Gastroenterology, Affiliated Hospital of Nantong University, Nantong, Jiangsu 226001, P.R. China
| | - Han Wu
- Nanjing Drum Tower Hospital Clinical College of Nanjing Medical University, Nanjing, Jiangsu 210000, P.R. China
| | - Yanting Shen
- Clinical Medical Research Center, The Second Affiliated Hospital of Nantong University, Nantong, Jiangsu 226001, P.R. China
| | - You Ni
- Clinical Medical Research Center, The Second Affiliated Hospital of Nantong University, Nantong, Jiangsu 226001, P.R. China
| | - Dongmei Zhang
- Clinical Medical Research Center, The Second Affiliated Hospital of Nantong University, Nantong, Jiangsu 226001, P.R. China
| | - Guoxiong Zhou
- Department of Gastroenterology, Affiliated Hospital of Nantong University, Nantong, Jiangsu 226001, P.R. China
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Alavilli H, Lee H, Park M, Yun DJ, Lee BH. Enhanced multiple stress tolerance in Arabidopsis by overexpression of the polar moss peptidyl prolyl isomerase FKBP12 gene. PLANT CELL REPORTS 2018; 37:453-465. [PMID: 29247292 DOI: 10.1007/s00299-017-2242-9] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/29/2017] [Accepted: 12/05/2017] [Indexed: 06/07/2023]
Abstract
PaFKBP12 overexpression in Arabidopsis resulted in stress tolerance to heat, ABA, drought, and salt stress, in addition to growth promotion under normal conditions. Polytrichastrum alpinum (alpine haircap moss) is one of polar organisms that can withstand the severe conditions of the Antarctic. In this study, we report the isolation of a peptidyl prolyl isomerase FKBP12 gene (PaFKBP12) from P. alpinum collected in the Antarctic and its functional implications in development and stress responses in plants. In P. alpinum, PaFKBP12 expression was induced by heat and ABA. Overexpression of PaFKBP12 in Arabidopsis increased the plant size, which appeared to result from increased rates of cell cycle. Under heat stress conditions, PaFKBP12-overexpressing lines (PaFKBP12-OE) showed better growth and survival than the wild type. PaFKBP12-OE also showed higher root elongation rates, better shoot growth and enhanced survival at higher concentrations of ABA in comparison to the wild type. In addition, PaFKBP12-OE were more tolerant to drought and salt stress than the wild type. All these phenotypes were accompanied with higher induction of the stress responsive genes in PaFKBP12-OE than in the wild type. Taken together, our findings revealed important functions of PaFKBP12 in plant development and abiotic stress responses.
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Affiliation(s)
| | - Hyoungseok Lee
- Unit of Polar Genomics, Korea Polar Research Institute, Incheon, 21990, South Korea
| | - Mira Park
- Department of Life Science, Sogang University, Seoul, 04107, South Korea
- Unit of Polar Genomics, Korea Polar Research Institute, Incheon, 21990, South Korea
| | - Dae-Jin Yun
- Department of Biomedical Science and Engineering, Konkuk University, Seoul, 05029, South Korea
| | - Byeong-Ha Lee
- Department of Life Science, Sogang University, Seoul, 04107, South Korea.
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19
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Neuroprotective and Nerve Regenerative Approaches for Treatment of Erectile Dysfunction after Cavernous Nerve Injury. Int J Mol Sci 2017; 18:ijms18081794. [PMID: 28820434 PMCID: PMC5578182 DOI: 10.3390/ijms18081794] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2017] [Revised: 08/10/2017] [Accepted: 08/12/2017] [Indexed: 01/02/2023] Open
Abstract
Erectile dysfunction (ED) is a significant cause of reduced quality of life in men and their partners. Cavernous nerve injury (CNI) during pelvic surgery results in ED in greater than 50% of patients, regardless of additional patient factors. ED related to CNI is difficult to treat and typically poorly responsive to first- and second-line therapeutic options. Recently, a significant amount of research has been devoted to exploring neuroprotective and neuroregenerative approaches to salvage erectile function in patients with CNI. In addition, therapeutic options such as neuregulins, immunophilin ligands, gene therapy, stem cell therapy and novel surgical strategies, have shown benefit in pre-clinical, and limited clinical studies. In the era of personalized medicine, these new therapeutic technologies will be the future of ED treatment and are described in this review.
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Wang T, He X, Liu X, Liu Y, Zhang W, Huang Q, Liu W, Xiong L, Tan R, Wang H, Zeng H. Weighted Gene Co-expression Network Analysis Identifies FKBP11 as a Key Regulator in Acute Aortic Dissection through a NF-kB Dependent Pathway. Front Physiol 2017; 8:1010. [PMID: 29255427 PMCID: PMC5723018 DOI: 10.3389/fphys.2017.01010] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2017] [Accepted: 11/21/2017] [Indexed: 12/31/2022] Open
Abstract
Acute aortic dissection (AAD) is a life-threatening disease. Despite the higher risk of mortality, currently there are no effective therapies that can ameliorate AAD development or progression. Identification of meaningful clusters of co-expressed genes or representative biomarkers for AAD may help to identify new pathomechanisms and foster development of new therapies. To this end, we performed a weighted gene co-expression network analysis (WGCNA) and calculated module-trait correlations based on a public microarray dataset (GSE 52093) and discovered 9 modules were found to be related to AAD. The module which has the strongest positive correlation with AAD was further analyzed and the top 10 hub genes SLC20A1, GINS2, CNN1, FAM198B, MAD2L2, UBE2T, FKBP11, SLMAP, CCDC34, and GALK1 were identified. Furthermore, we validated the data by qRT-PCR in an independent sample set originated from our study center. Overall, the qRT-PCR results were consistent with the results of the microarray analysis. Intriguingly, the highest change was found for FKBP11, a protein belongs to the FKBP family of peptidyl-prolyl cis/trans isomerases, which catalyze the folding of proline-containing polypeptides. In congruent with the gene expression analysis, FKBP11 expression was induced in cultured endothelial cells by angiotensin II treatment and endothelium of the dissected aorta. More importantly we show that FKBP11 provokes inflammation in endothelial cells by interacting with NF-kB p65 subunit, resulting in pro-inflammatory cytokines production. Accordingly, siRNA mediated knockdown of FKBP11 in cultured endothelial cells suppressed angiotensin II induced monocyte transmigration through the endothelial monolayer. Based on these data, we hypothesize that pro-inflammatory cytokines elicited by FKBP11 overexpression in the endothelium under AAD condition could facilitate transendothelial migration of the circulating monocytes into the aorta, where they differentiate into active macrophages and secrete MMPs and other extracellular matrix (ECM) degrading proteins, contributing to sustained inflammation and AAD. Taken together, our data identify important role of FKBP11 which can serve as biomarker and/or therapeutic target for AAD.
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Affiliation(s)
- Tao Wang
- Division of Cardiology, Department of Internal Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Xingwei He
- Division of Cardiology, Department of Internal Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Xintian Liu
- Department of Cardiology, Wuhan Asia Heart Hospital, Wuhan, China
| | - Yujian Liu
- Division of Cardiology, Department of Internal Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Wenjun Zhang
- Division of Cardiology, Department of Internal Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Qiang Huang
- Division of Cardiology, Department of Internal Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Wanjun Liu
- Division of Cardiology, Department of Internal Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Luyang Xiong
- Division of Cardiology, Department of Internal Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Rong Tan
- Divison of Cardiology, the Fifth Hospital of Wuhan, Wuhan, China
| | - Hongjie Wang
- Division of Cardiology, Department of Internal Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- *Correspondence: Hongjie Wang
| | - Hesong Zeng
- Division of Cardiology, Department of Internal Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- Hesong Zeng
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21
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Ruer-Laventie J, Simoni L, Schickel JN, Soley A, Duval M, Knapp AM, Marcellin L, Lamon D, Korganow AS, Martin T, Pasquali JL, Soulas-Sprauel P. Overexpression of Fkbp11, a feature of lupus B cells, leads to B cell tolerance breakdown and initiates plasma cell differentiation. IMMUNITY INFLAMMATION AND DISEASE 2015; 3:265-79. [PMID: 26417441 PMCID: PMC4578525 DOI: 10.1002/iid3.65] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/13/2015] [Revised: 04/23/2015] [Accepted: 05/03/2015] [Indexed: 12/20/2022]
Abstract
Systemic Lupus Erythematosus (SLE) is a severe systemic autoimmune disease, characterized by multi-organ damages, triggered by an autoantibody-mediated inflammation, and with a complex genetic influence. It is today accepted that adult SLE arises from the building up of many subtle gene variations, each one adding a new brick on the SLE susceptibility and contributing to a phenotypic trait to the disease. One of the ways to find these gene variations consists in comprehensive analysis of gene expression variation in a precise cell type, which can constitute a good complementary strategy to genome wide association studies. Using this strategy, and considering the central role of B cells in SLE, we analyzed the B cell transcriptome of quiescent SLE patients, and identified an overexpression of FKBP11, coding for a cytoplasmic putative peptidyl-prolyl cis/trans isomerase and chaperone enzyme. To understand the consequences of FKBP11 overexpression on B cell function and on autoimmunity's development, we created lentiviral transgenic mice reproducing this gene expression variation. We showed that high expression of Fkbp11 reproduces by itself two phenotypic traits of SLE in mice: breakdown of B cell tolerance against DNA and initiation of plasma cell differentiation by acting upstream of Pax5 master regulator gene.
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Affiliation(s)
- Julie Ruer-Laventie
- CNRS UPR3572, Institut de Biologie Moléculaire et Cellulaire, Immunopathologie et Chimie Thérapeutique/Laboratory of Excellence Medalis Strasbourg, F-67084, France
| | - Léa Simoni
- CNRS UPR3572, Institut de Biologie Moléculaire et Cellulaire, Immunopathologie et Chimie Thérapeutique/Laboratory of Excellence Medalis Strasbourg, F-67084, France
| | - Jean-Nicolas Schickel
- CNRS UPR3572, Institut de Biologie Moléculaire et Cellulaire, Immunopathologie et Chimie Thérapeutique/Laboratory of Excellence Medalis Strasbourg, F-67084, France
| | - Anne Soley
- CNRS UPR3572, Institut de Biologie Moléculaire et Cellulaire, Immunopathologie et Chimie Thérapeutique/Laboratory of Excellence Medalis Strasbourg, F-67084, France ; Université de Strasbourg, UFR Médecine Strasbourg, F-67085, France
| | - Monique Duval
- CNRS UPR3572, Institut de Biologie Moléculaire et Cellulaire, Immunopathologie et Chimie Thérapeutique/Laboratory of Excellence Medalis Strasbourg, F-67084, France
| | - Anne-Marie Knapp
- CNRS UPR3572, Institut de Biologie Moléculaire et Cellulaire, Immunopathologie et Chimie Thérapeutique/Laboratory of Excellence Medalis Strasbourg, F-67084, France ; Université de Strasbourg, UFR Médecine Strasbourg, F-67085, France
| | - Luc Marcellin
- Department of Anatomopathology, H, ô, pitaux Universitaires de Strasbourg F-67085, France
| | - Delphine Lamon
- CNRS UPR3572, Institut de Biologie Moléculaire et Cellulaire, Immunopathologie et Chimie Thérapeutique/Laboratory of Excellence Medalis Strasbourg, F-67084, France
| | - Anne-Sophie Korganow
- CNRS UPR3572, Institut de Biologie Moléculaire et Cellulaire, Immunopathologie et Chimie Thérapeutique/Laboratory of Excellence Medalis Strasbourg, F-67084, France ; Université de Strasbourg, UFR Médecine Strasbourg, F-67085, France ; Department of Clinical Immunology, Hôpitaux Universitaires de Strasbourg F-67085, France
| | - Thierry Martin
- CNRS UPR3572, Institut de Biologie Moléculaire et Cellulaire, Immunopathologie et Chimie Thérapeutique/Laboratory of Excellence Medalis Strasbourg, F-67084, France ; Université de Strasbourg, UFR Médecine Strasbourg, F-67085, France ; Department of Clinical Immunology, Hôpitaux Universitaires de Strasbourg F-67085, France
| | - Jean-Louis Pasquali
- CNRS UPR3572, Institut de Biologie Moléculaire et Cellulaire, Immunopathologie et Chimie Thérapeutique/Laboratory of Excellence Medalis Strasbourg, F-67084, France ; Université de Strasbourg, UFR Médecine Strasbourg, F-67085, France ; Department of Clinical Immunology, Hôpitaux Universitaires de Strasbourg F-67085, France
| | - Pauline Soulas-Sprauel
- CNRS UPR3572, Institut de Biologie Moléculaire et Cellulaire, Immunopathologie et Chimie Thérapeutique/Laboratory of Excellence Medalis Strasbourg, F-67084, France ; Department of Clinical Immunology, Hôpitaux Universitaires de Strasbourg F-67085, France ; Université de Strasbourg, UFR Sciences Pharmaceutiques Illkirch, F-67401, France
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Ishikawa Y, Boudko S, Bächinger HP. Ziploc-ing the structure: Triple helix formation is coordinated by rough endoplasmic reticulum resident PPIases. Biochim Biophys Acta Gen Subj 2015; 1850:1983-93. [PMID: 25583561 DOI: 10.1016/j.bbagen.2014.12.024] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2014] [Revised: 12/26/2014] [Accepted: 12/29/2014] [Indexed: 11/18/2022]
Abstract
BACKGROUND Protein folding is crucial for proteins' specific functions and is facilitated by various types of enzymes and molecular chaperones. The peptidyl prolyl cis/trans isomerases (PPIase) are one of these families of enzymes. They ubiquitously exist inside the cell and there are eight PPIases in the rough endoplasmic reticulum (rER), a compartment where the folding of most secreted proteins occurs. SCOPE OF REVIEW We review the functional and structural aspects of individual rER resident PPIases. Furthermore, we specifically discuss the role of these PPIases during collagen biosynthesis, since collagen is the most abundant protein in humans, is synthesized in the rER, and contains a proportionally high number of proline residues. MAJOR CONCLUSIONS The rER resident PPIases recognize different sets of substrates and facilitate their folding. Although they are clearly catalysts for protein folding, they also have more broad and multifaceted functions. We propose that PPIases coordinate collagen biosynthesis in the rER. GENERAL SIGNIFICANCE This review expands our understanding of collagen biosynthesis by explaining the influence of novel indirect mechanisms of regulating folding and this is also explored for PPIases. We also suggest future directions of research to obtain a better understanding of collagen biosynthesis and functions of PPIases in the rER. This article is part of a Special Issue entitled Proline-directed Foldases: Cell Signaling Catalysts and Drug Targets.
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Affiliation(s)
- Yoshihiro Ishikawa
- Department of Biochemistry and Molecular Biology, Oregon Health & Science University, Portland, OR 97239, USA; Shriners Hospital for Children, Research Department, Portland, OR 97239, USA
| | - Sergei Boudko
- Department of Biochemistry and Molecular Biology, Oregon Health & Science University, Portland, OR 97239, USA; Shriners Hospital for Children, Research Department, Portland, OR 97239, USA
| | - Hans Peter Bächinger
- Department of Biochemistry and Molecular Biology, Oregon Health & Science University, Portland, OR 97239, USA; Shriners Hospital for Children, Research Department, Portland, OR 97239, USA.
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23
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Nath PR, Isakov N. Insights into peptidyl-prolyl cis–trans isomerase structure and function in immunocytes. Immunol Lett 2015; 163:120-31. [DOI: 10.1016/j.imlet.2014.11.002] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2014] [Revised: 10/27/2014] [Accepted: 11/03/2014] [Indexed: 12/30/2022]
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24
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Patoine A, Gaumond MH, Jaiswal PK, Fassier F, Rauch F, Moffatt P. Topological mapping of BRIL reveals a type II orientation and effects of osteogenesis imperfecta mutations on its cellular destination. J Bone Miner Res 2014; 29:2004-16. [PMID: 24715519 DOI: 10.1002/jbmr.2243] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/09/2014] [Revised: 03/25/2014] [Accepted: 03/26/2014] [Indexed: 11/12/2022]
Abstract
BRIL/IFITM5 is a membrane protein present almost exclusively in osteoblasts, which is believed to adopt a type III (N-out/C-out) topology. Mutations in IFITM5 cause OI type V, but the characteristics of the mutant protein and the mechanism involved are still unknown. The purpose of the current study was to re-assess the topology, localization, and biochemical properties of BRIL and compare it to the OI type V mutant in MC3T3 osteoblasts. Immunofluorescence labeling was performed with antibodies directed against BRIL N- or C-terminus. In intact cells, BRIL labeling was conspicuously detected at the plasma membrane only with the anti-C antibody. Detection of BRIL N-terminus was only possible after cell permeabilization, revealing both plasma membrane and Golgi labeling. Trypsinization of live cells expressing BRIL only cleaved off the C-terminus, confirming that it is a type II protein and that its N-terminus is intracellular. A truncated form of BRIL lacking the last 18 residues did not appear to affect localization, whereas mutation of a single leucine to arginine within the transmembrane segment abolished plasma membrane targeting. BRIL is first targeted to the endoplasmic reticulum as the entry point to the secretory pathway and rapidly traffics to the Golgi via a COPII-dependent pathway. BRIL was found to be palmitoylated and two conserved cysteine residues (C52 and C53) were critical for targeting to the plasma membrane. The OI type V mutant BRIL, having a five residue extension (MALEP) at its N-terminus, presented with exactly the same topological and biochemical characteristics as wild type BRIL. In contrast, the S42 > L mutant BRIL was trapped intracellularly in the Golgi. BRIL proteins and transcripts were equally detected in bone from a patient with OI type V, suggesting that the cause of the disease is a gain of function mediated by a faulty intracellular activity of the mutant BRIL.
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Affiliation(s)
- Alexa Patoine
- Shriners Hospital for Children, Montreal, Quebec, Canada; Department of Human Genetics, McGill University, Montreal, Quebec, Canada
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25
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Blair LJ, Sabbagh JJ, Dickey CA. Targeting Hsp90 and its co-chaperones to treat Alzheimer's disease. Expert Opin Ther Targets 2014; 18:1219-32. [PMID: 25069659 DOI: 10.1517/14728222.2014.943185] [Citation(s) in RCA: 70] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
INTRODUCTION Alzheimer's disease, characterized by the accumulation of hyperphosphorylated tau and β amyloid (Aβ), currently lacks effective treatment. Chaperone proteins, such as the heat shock protein (Hsp) 90, form macromolecular complexes with co-chaperones, which can regulate tau metabolism and Aβ processing. Although small molecule inhibitors of Hsp90 have been successful at ameliorating tau and Aβ burden, their development into drugs to treat disease has been slow due to the off- and on-target effects of this approach as well as challenges with the pharmacology of current scaffolds. Thus, other approaches are being developed to improve these compounds and to target co-chaperones of Hsp90 in an effort to limit these liabilities. AREAS COVERED This article discusses the most current developments in Hsp90 inhibitors including advances in blood-brain barrier permeability, decreased toxicity and homolog-specific small-molecule inhibitors. In addition, we discuss current strategies targeting Hsp90 co-chaperones rather than Hsp90 itself to reduce off-target effects. EXPERT OPINION Although Hsp90 inhibitors have proven their efficacy at reducing tau pathology, they have yet to meet with success in the clinic. The development of Hsp90/tau complex-specific inhibitors and further development of Hsp90 co-chaperone-specific drugs should yield more potent, less toxic therapeutics.
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Affiliation(s)
- Laura J Blair
- University of South Florida, USF Health Byrd Institute, Department of Molecular Medicine , 4001 E. Fletcher Avenue, Tampa, FL 33613 , USA
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26
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Ishikawa Y, Bächinger HP. A substrate preference for the rough endoplasmic reticulum resident protein FKBP22 during collagen biosynthesis. J Biol Chem 2014; 289:18189-201. [PMID: 24821723 DOI: 10.1074/jbc.m114.561944] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
The biosynthesis of collagens occurs in the rough endoplasmic reticulum and requires a large numbers of molecular chaperones, foldases, and post-translational modification enzymes. Collagens contain a large number of proline residues that are post-translationally modified to 3-hydroxyproline or 4-hydroxyproline, and the rate-limiting step in formation of the triple helix is the cis-trans isomerization of peptidyl-proline bonds. This step is catalyzed by peptidyl-prolyl cis-trans isomerases. There are seven peptidyl-prolyl cis-trans isomerases in the rER, and so far, two of these enzymes, cyclophilin B and FKBP65, have been shown to be involved in collagen biosynthesis. The absence of either cyclophilin B or FKBP65 leads to a recessive form of osteogenesis imperfecta. The absence of FKBP22 leads to a kyphoscoliotic type of Ehlers-Danlos syndrome (EDS), and this type of EDS is classified as EDS type VI, which can also be caused by a deficiency in lysyl-hydroxylase 1. However, the lack of FKBP22 shows a wider spectrum of clinical phenotypes than the absence of lysyl-hydroxylase 1 and additionally includes myopathy, hearing loss, and aortic rupture. Here we show that FKBP22 catalyzes the folding of type III collagen and interacts with type III collagen, type VI collagen, and type X collagen, but not with type I collagen, type II collagen, or type V collagen. These restrictive interactions might help explain the broader phenotype observed in patients that lack FKBP22.
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Affiliation(s)
- Yoshihiro Ishikawa
- From the Department of Biochemistry and Molecular Biology, Oregon Health and Science University, Portland, Oregon 97239 and the Research Department, Shriners Hospital for Children, Portland, Oregon 97239
| | - Hans Peter Bächinger
- From the Department of Biochemistry and Molecular Biology, Oregon Health and Science University, Portland, Oregon 97239 and the Research Department, Shriners Hospital for Children, Portland, Oregon 97239
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27
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Kujawski S, Lin W, Kitte F, Börmel M, Fuchs S, Arulmozhivarman G, Vogt S, Theil D, Zhang Y, Antos CL. Calcineurin regulates coordinated outgrowth of zebrafish regenerating fins. Dev Cell 2014; 28:573-87. [PMID: 24561038 DOI: 10.1016/j.devcel.2014.01.019] [Citation(s) in RCA: 65] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2013] [Revised: 12/03/2013] [Accepted: 01/21/2014] [Indexed: 01/11/2023]
Abstract
Vertebrates develop organs and appendages in a proportionally coordinated manner, and animals that regenerate them do so to the same dimensions as the original structures. Coordinated proportional growth involves controlled regulation between allometric and isometric growth programs, but it is unclear what executes this control. We show that calcineurin inhibition results in continued allometric outgrowth of regenerating fins beyond their original dimensions. Calcineurin inhibition also maintains allometric growth of juvenile fins and induces it in adult fins. Furthermore, calcineurin activity is low when the regeneration rate is highest, and its activity increases as the rate decreases. Growth measurements and morphometric analysis of proximodistal asymmetry indicate that calcineurin inhibition shifts fin regeneration from a distal growth program to a proximal program. This shift is associated with the promotion of retinoic acid signaling. Thus, we identified a calcineurin-mediated mechanism that operates as a molecular switch between position-associated isometric and allometric growth programs.
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Affiliation(s)
- Satu Kujawski
- DFG-Center for Regenerative Therapies Dresden, Technische Universität Dresden, Fetscherstrasse 105, 01307 Dresden, Germany
| | - Weilin Lin
- B CUBE, Center for Molecular Bioengineering, Technische Universität Dresden, Arnoldstrasse 18, 01307 Dresden, Germany
| | - Florian Kitte
- DFG-Center for Regenerative Therapies Dresden, Technische Universität Dresden, Fetscherstrasse 105, 01307 Dresden, Germany
| | - Mandy Börmel
- DFG-Center for Regenerative Therapies Dresden, Technische Universität Dresden, Fetscherstrasse 105, 01307 Dresden, Germany; Institute of Biochemistry, Swiss Federal Institute of Technology Zürich, 8093 Zürich, Switzerland
| | - Steffen Fuchs
- DFG-Center for Regenerative Therapies Dresden, Technische Universität Dresden, Fetscherstrasse 105, 01307 Dresden, Germany; Universität Würzburg, 97072 Würzburg, Germany
| | - Guruchandar Arulmozhivarman
- DFG-Center for Regenerative Therapies Dresden, Technische Universität Dresden, Fetscherstrasse 105, 01307 Dresden, Germany
| | - Sebastian Vogt
- DFG-Center for Regenerative Therapies Dresden, Technische Universität Dresden, Fetscherstrasse 105, 01307 Dresden, Germany
| | - Denise Theil
- DFG-Center for Regenerative Therapies Dresden, Technische Universität Dresden, Fetscherstrasse 105, 01307 Dresden, Germany
| | - Yixin Zhang
- B CUBE, Center for Molecular Bioengineering, Technische Universität Dresden, Arnoldstrasse 18, 01307 Dresden, Germany
| | - Christopher L Antos
- DFG-Center for Regenerative Therapies Dresden, Technische Universität Dresden, Fetscherstrasse 105, 01307 Dresden, Germany.
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28
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Abstract
FKBP38 is involved in various cellular processes through association with Bcl-2 and Hsp90. Ca2+/S100 proteins directly bind to FKBP38 and inhibit the association of FKBP38 with Bcl-2 and Hsp90. Our findings demonstrate that S100 proteins are novel Ca2+-dependent regulators of FKBP38.
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Leng X, Liu D, Zhao M, Sun X, Li Y, Mu Q, Zhu X, Li P, Fang J. Genome-wide identification and analysis of FK506-binding protein family gene family in strawberry (Fragaria × ananassa). Gene 2013; 534:390-9. [PMID: 24230972 DOI: 10.1016/j.gene.2013.08.056] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2013] [Revised: 08/12/2013] [Accepted: 08/14/2013] [Indexed: 01/03/2023]
Abstract
The FK506 binding proteins (FKBPs) are abundant and ubiquitous proteins belonging to the large peptidyl-prolylcis-trans isomerase superfamily. FKBPs are known to be involved in many biological processes including hormone signaling, plant growth, and stress responses through a chaperone or an isomerization of proline residues during protein folding. The availability of complete strawberry genome sequences allowed the identification of 23 FKBP genes by HMMER and blast analysis. Chromosome scaffold locations of these FKBP genes in the strawberry genome were determined and the protein domain and motif organization of FaFKBPs analyzed. The phylogenetic relationships between strawberry FKBPs were also assessed. The expression profiles of FaFKBPs genes results revealed that most FaFKBPs were expressed in all tissues, while a few FaFKBPs were specifically expressed in some of the tissues. These data not only contribute to some better understanding of the complex regulation of the strawberry FKBP gene family, but also provide valuable information for further research in strawberry functional genomics.
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Affiliation(s)
- Xiangpeng Leng
- College of Horticulture, Nanjing Agricultural University, Tongwei Road 6, Nanjing 210095, PR China
| | - Dan Liu
- College of Horticulture, Nanjing Agricultural University, Tongwei Road 6, Nanjing 210095, PR China
| | - Mizhen Zhao
- Institute of Horticulture, Jiangsu Academy of Agricultural Sciences, Zhongling Street 50, Nanjing 210014, PR China
| | - Xin Sun
- College of Horticulture, Nanjing Agricultural University, Tongwei Road 6, Nanjing 210095, PR China
| | - Yu Li
- College of Horticulture, Nanjing Agricultural University, Tongwei Road 6, Nanjing 210095, PR China
| | - Qian Mu
- College of Horticulture, Nanjing Agricultural University, Tongwei Road 6, Nanjing 210095, PR China
| | - Xudong Zhu
- College of Horticulture, Nanjing Agricultural University, Tongwei Road 6, Nanjing 210095, PR China
| | - Pengyu Li
- College of Horticulture, Nanjing Agricultural University, Tongwei Road 6, Nanjing 210095, PR China.
| | - Jinggui Fang
- College of Horticulture, Nanjing Agricultural University, Tongwei Road 6, Nanjing 210095, PR China.
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30
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A molecular ensemble in the rER for procollagen maturation. BIOCHIMICA ET BIOPHYSICA ACTA-MOLECULAR CELL RESEARCH 2013; 1833:2479-91. [DOI: 10.1016/j.bbamcr.2013.04.008] [Citation(s) in RCA: 80] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/28/2013] [Revised: 04/06/2013] [Accepted: 04/08/2013] [Indexed: 01/18/2023]
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31
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Galat A. Functional diversity and pharmacological profiles of the FKBPs and their complexes with small natural ligands. Cell Mol Life Sci 2013; 70:3243-75. [PMID: 23224428 PMCID: PMC11113493 DOI: 10.1007/s00018-012-1206-z] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2012] [Revised: 10/24/2012] [Accepted: 10/25/2012] [Indexed: 12/25/2022]
Abstract
From 5 to 12 FK506-binding proteins (FKBPs) are encoded in the genomes of disparate marine organisms, which appeared at the dawn of evolutionary events giving rise to primordial multicellular organisms with elaborated internal body plan. Fifteen FKBPs, several FKBP-like proteins and some splicing variants of them are expressed in humans. Human FKBP12 and some of its paralogues bind to different macrocyclic antibiotics such as FK506 or rapamycin and their derivatives. FKBP12/(macrocyclic antibiotic) complexes induce diverse pharmacological activities such as immunosuppression in humans, anticancerous actions and as sustainers of quiescence in certain organisms. Since the FKBPs bind to various assemblies of proteins and other intracellular components, their complexes with the immunosuppressive drugs may differentially perturb miscellaneous cellular functions. Sequence-structure relationships and pharmacological profiles of diverse FKBPs and their involvement in crucial intracellular signalization pathways and modulation of cryptic intercellular communication networks were discussed.
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Affiliation(s)
- Andrzej Galat
- Commissariat à l'Energie Atomique, Direction des Sciences du Vivant, Institut de Biologie et de Technologies de Saclay, Service d'Ingénierie Moléculaire des Protéines, Bat. 152, 91191, Gif-sur-Yvette Cedex, France.
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32
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Yu Y, Zhang H, Li W, Mu C, Zhang F, Wang L, Meng Z. Genome-wide analysis and environmental response profiling of the FK506-binding protein gene family in maize (Zea mays L.). Gene 2012; 498:212-22. [PMID: 22366304 DOI: 10.1016/j.gene.2012.01.094] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2011] [Revised: 01/28/2012] [Accepted: 01/30/2012] [Indexed: 10/28/2022]
Abstract
The FK506-binding proteins (FKBPs) belong to the peptidyl-prolyl cis/trans isomerase (PPIase) superfamily, and have been implicated in a wide spectrum of biological processes, including protein folding, hormone signaling, plant growth, and stress responses. Genome-wide structural and evolutionary analyses of the entire FKBP gene family have been conducted in Arabidopsis and rice. In the present study, a genome-wide analysis was performed to identify all maize FKBP genes. The availability of complete maize genome sequences allowed for the identification of 24 FKBP genes. Chromosomal locations in the maize genome were determined and the protein domain and motif organization of ZmFKBPs analyzed. The phylogenetic relationships between maize FKBPs were also assessed. The expression profiles of ZmFKBP genes were measured under different environmental conditions and revealed distinct ZmFKBP gene expression patterns under heat, cold, salt, and drought stress. These data not only contribute to a better understanding of the complex regulation of the maize FKBP gene family, but also provide evidence supporting the role of FKBPs in multiple signaling pathways involved in stress responses. This investigation may provide valuable information for further research on stress tolerance in plants and potential strategies for enhancing maize survival under stressful conditions.
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Affiliation(s)
- Yanli Yu
- Maize Institute, Shandong Academy of Agricultural Sciences/National Maize Improvement Sub-Center, Jinan, Shandong 250100, PR China.
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33
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Trapé AP, Katayama MLH, Roela RA, Brentani H, Ravacci GR, de Araujo Lima L, Brentani MM. Gene Expression Profile in Response to Doxorubicin–Rapamycin Combined Treatment of HER-2–Overexpressing Human Mammary Epithelial Cell Lines. Mol Cancer Ther 2011; 11:464-74. [DOI: 10.1158/1535-7163.mct-11-0033] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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34
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Abstract
Analysis of the human genome reveals that approximately a third of all open reading frames code for proteins that enter the endoplasmic reticulum (ER), demonstrating the importance of this organelle for global protein maturation. The path taken by a polypeptide through the secretory pathway starts with its translocation across or into the ER membrane. It then must fold and be modified correctly in the ER before being transported via the Golgi apparatus to the cell surface or another destination. Being physically segregated from the cytosol means that the ER lumen has a distinct folding environment. It contains much of the machinery for fulfilling the task of protein production, including complex pathways for folding, assembly, modification, quality control, and recycling. Importantly, the compartmentalization means that several modifications that do not occur in the cytosol, such as glycosylation and extensive disulfide bond formation, can occur to secreted proteins to enhance their stability before their exposure to the extracellular milieu. How these various machineries interact during the normal pathway of folding and protein secretion is the subject of this review.
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Affiliation(s)
- Ineke Braakman
- Cellular Protein Chemistry, Faculty of Science, Utrecht University, Utrecht, The Netherlands.
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35
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Vander Heyden AB, Naismith TV, Snapp EL, Hanson PI. Static retention of the lumenal monotopic membrane protein torsinA in the endoplasmic reticulum. EMBO J 2011; 30:3217-31. [PMID: 21785409 DOI: 10.1038/emboj.2011.233] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2011] [Accepted: 06/16/2011] [Indexed: 02/06/2023] Open
Abstract
TorsinA is a membrane-associated enzyme in the endoplasmic reticulum (ER) lumen that is mutated in DYT1 dystonia. How it remains in the ER has been unclear. We report that a hydrophobic N-terminal domain (NTD) directs static retention of torsinA within the ER by excluding it from ER exit sites, as has been previously reported for short transmembrane domains (TMDs). We show that despite the NTD's physicochemical similarity to TMDs, it does not traverse the membrane, defining torsinA as a lumenal monotopic membrane protein and requiring a new paradigm to explain retention. ER retention and membrane association are perturbed by a subset of nonconservative mutations to the NTD, suggesting that a helical structure with defined orientation in the membrane is required. TorsinA preferentially enriches in ER sheets, as might be expected for a lumenal monotopic membrane protein. We propose that the principle of membrane-based protein sorting extends to monotopic membrane proteins, and identify other proteins including the monotopic lumenal enzyme cyclooxygenase 1 (prostaglandin H synthase 1) that share this mechanism of retention with torsinA.
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Affiliation(s)
- Abigail B Vander Heyden
- Department of Cell Biology and Physiology, Washington University School of Medicine, St Louis, MO, USA
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36
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Gerard M, Deleersnijder A, Demeulemeester J, Debyser Z, Baekelandt V. Unraveling the role of peptidyl-prolyl isomerases in neurodegeneration. Mol Neurobiol 2011; 44:13-27. [PMID: 21553017 DOI: 10.1007/s12035-011-8184-2] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2010] [Accepted: 04/14/2011] [Indexed: 02/07/2023]
Abstract
Immunophilins are a family of highly conserved proteins with a peptidyl-prolyl isomerase activity that binds immunosuppressive drugs such as FK506, cyclosporin A, and rapamycin. Immunophilins can be divided into two subfamilies, the cyclophilins, and the FK506 binding proteins (FKBPs). Next to the immunophilins, a third group of peptidyl-prolyl isomerases exist, the parvulins, which do not influence the immune system. The beneficial role of immunophilin ligands in neurodegenerative disease models has been known for more than a decade but remains largely unexplained in terms of molecular mechanisms. In this review, we summarize reported effects of parvulins, immunophilins, and their ligands in the context of neurodegeneration. We focus on the role of FKBP12 in Parkinson's disease and propose it as a novel drug target for therapy of Parkinson's disease.
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Affiliation(s)
- Melanie Gerard
- Laboratory of Biochemistry, IRC, K.U. Leuven-Kortrijk, Etienne Sabbelaan 53, 8500 Kortrijk, Flanders, Belgium
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37
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Hanagata N, Li X, Morita H, Takemura T, Li J, Minowa T. Characterization of the osteoblast-specific transmembrane protein IFITM5 and analysis of IFITM5-deficient mice. J Bone Miner Metab 2011; 29:279-90. [PMID: 20838829 DOI: 10.1007/s00774-010-0221-0] [Citation(s) in RCA: 69] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/01/2010] [Accepted: 08/08/2010] [Indexed: 10/19/2022]
Abstract
Interferon-inducible transmembrane protein 5 (IFITM5) is an osteoblast-specific membrane protein whose expression peaks around the early mineralization stage during the osteoblast maturation process. To investigate IFITM5 function, we first sought to identify which proteins interact with IFITM5. Liquid chromatography mass spectrometry revealed that FK506-binding protein 11 (FKBP11) co-immunoprecipitated with IFITM5. FKBP11 is the only protein it was found to interact with in osteoblasts, while IFITM5 interacts with several proteins in fibroblasts. FKBPs are involved in protein folding and immunosuppressant binding, but we could not be sure that IFITM5 participated in these activities when bound to FKBP11. Thus, we generated Ifitm5-deficient mice and analyzed their skeletal phenotypes. The skeletons, especially the long bones, of homozygous mutants (Ifitm5(-/-)) were smaller than those of heterozygous mutants (Ifitm5(+/-)), although we did not observe any significant differences in bone morphometric parameters. The effect of Ifitm5 deficiency on bone formation was more significant in newborns than in young and adult mice, suggesting that Ifitm5 deficiency might have a greater effect on prenatal bone development. Overall, the effect of Ifitm5 deficiency on bone formation was less than we expected. We hypothesize that this may have resulted from a compensatory mechanism in Ifitm5-deficient mice.
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Affiliation(s)
- Nobutaka Hanagata
- Nanotechnology Innovation Center, National Institute for Materials Science, 1-2-1 Sengen, Tsukuba, Ibaraki 305-0047, Japan.
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38
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Protein Quality Control, Retention, and Degradation at the Endoplasmic Reticulum. INTERNATIONAL REVIEW OF CELL AND MOLECULAR BIOLOGY 2011; 292:197-280. [DOI: 10.1016/b978-0-12-386033-0.00005-0] [Citation(s) in RCA: 80] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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39
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Inhibition of FK506 binding proteins reduces alpha-synuclein aggregation and Parkinson's disease-like pathology. J Neurosci 2010; 30:2454-63. [PMID: 20164329 DOI: 10.1523/jneurosci.5983-09.2010] [Citation(s) in RCA: 78] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
alpha-Synuclein (alpha-SYN) is a key player in the pathogenesis of Parkinson's disease (PD). In pathological conditions, the protein is present in a fibrillar, aggregated form inside cytoplasmic inclusions called Lewy bodies. Members of the FK506 binding protein (FKBP) family are peptidyl-prolyl isomerases that were shown recently to accelerate the aggregation of alpha-SYN in vitro. We now established a neuronal cell culture model for synucleinopathy based on oxidative stress-induced alpha-SYN aggregation and apoptosis. Using high-content analysis, we examined the role of FKBPs in aggregation and apoptotic cell death. FK506, a specific inhibitor of this family of proteins, inhibited alpha-SYN aggregation and neuronal cell death in this synucleinopathy model dose dependently. Knockdown of FKBP12 or FKBP52 reduced the number of alpha-SYN aggregates and protected against cell death, whereas overexpression of FKBP12 or FKBP52 accelerated both aggregation of alpha-SYN and cell death. Thus, FK506 likely targets FKBP members in the cell culture model. Furthermore, oral administration of FK506 after viral vector-mediated overexpression of alpha-SYN in adult mouse brain significantly reduced alpha-SYN aggregate formation and neuronal cell death. Our data explain previously described neuroregenerative and neuroprotective effects of immunophilin ligands and validate FKBPs as a novel drug target for the causative treatment of PD.
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40
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Gollan PJ, Bhave M. Genome-wide analysis of genes encoding FK506-binding proteins in rice. PLANT MOLECULAR BIOLOGY 2010; 72:1-16. [PMID: 19768557 DOI: 10.1007/s11103-009-9547-1] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/23/2009] [Accepted: 08/31/2009] [Indexed: 05/28/2023]
Abstract
The FK506-binding proteins (FKBPs) are a class of peptidyl-prolyl cis/trans isomerase enzymes, some of which can also operate as molecular chaperones. FKBPs comprise a large ubiquitous family, found in virtually every part of the cell and involved in diverse processes from protein folding to stress response. Higher plant genomes typically encode about 20 FKBPs, half of these found in the chloroplast thylakoid lumen. Several FKBPs in plants are regulators of hormone signalling pathways, with important roles in seed germination, plant growth and stress response. Some FKBP isoforms exists as homologous duplicates operating in finely tuned mechanisms to cope with abiotic stress. In order to understand the roles of the plant FKBPs, especially in view of the warming environment, we have identified and analysed the gene families encoding these proteins in rice using computational approaches. The work has led to identification of all FKBPs from the rice genome, including novel high molecular weight forms. The rice FKBP family appears to have evolved by duplications of FKBP genes, which may be a strategy for increased stress tolerance.
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Affiliation(s)
- Peter J Gollan
- Environment and Biotechnology Centre, Faculty of Life and Social Sciences, Swinburne University of Technology, PO Box 218, Hawthorn, VIC, 3122, Australia
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41
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Sezen SF, Lagoda G, Burnett AL. Role of immunophilins in recovery of erectile function after cavernous nerve injury. J Sex Med 2009; 6 Suppl 3:340-6. [PMID: 19267858 DOI: 10.1111/j.1743-6109.2008.01193.x] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
INTRODUCTION Immunophilin ligands provide potentially new alternatives for the treatment of erectile dysfunction (ED), which occurs after injury of the cavernous nerves (CNs). AIM To review and update current knowledge of the neurotrophic effects and likely mechanism of action of immunophilin proteins with emphasis on the FK506-binding protein (FKBP) subfamily and the role of immunophilin ligands for the treatment of CN injury-induced ED. METHODS Review of available reports of studies investigating the effects and neurotrophic mechanisms of immunophilin ligands involved in erectile function recovery in rodent models of CN injury. MAIN OUTCOME MEASURES Erection parameters and molecular correlations associated with CN injury and functional recovery. RESULTS Treatment with prototype immunosuppressive immunophilin ligands FK506 (FK) and rapamycin (Rapa) improve erectile function in animal models of CN injury. Similarly, non-immunosuppressive analogs such as GPI-1046 and FK1706 are effective in recovery of erections after CN injury. Neuronal nitric oxide may influence the erection recovery effects of immunophilin ligands after CN injury. FKBPs 38 and 65 expression changes in the penis and its innervation coincide with the neurotrophic effects of immunophilin ligands. Antioxidative actions of immunophilin ligands contribute to their neurotrophic effects. Immunophilins are localized to nerves coursing in human prostate and penile tissue. CONCLUSIONS The findings support the hypothesis that immunophilin ligands, working through specific receptor mechanisms that are specific to injured CN, are potentially useful to sustain erectile function in men following radical prostatectomy.
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Affiliation(s)
- Sena F Sezen
- James Buchanan Brady Urological Institute, Johns Hopkins Medical Institutions, Department of Urology, Baltimore, MD 21287, USA.
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42
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Lagoda G, Sezen SF, Burnett AL. FK506 and Rapamycin Neuroprotect Erection and Involve Different Immunophilins in a Rat Model of Cavernous Nerve Injury. J Sex Med 2009; 6:1914-23. [DOI: 10.1111/j.1743-6109.2009.01293.x] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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43
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Somarelli JA, Lee SY, Skolnick J, Herrera RJ. Structure-based classification of 45 FK506-binding proteins. Proteins 2008; 72:197-208. [PMID: 18214965 DOI: 10.1002/prot.21908] [Citation(s) in RCA: 40] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
The FK506-binding proteins (FKBPs) are a unique group of chaperones found in a wide variety of organisms. They perform a number of cellular functions including protein folding, regulation of cytokines, transport of steroid receptor complexes, nucleic acid binding, histone assembly, and modulation of apoptosis. These functions are mediated by specific domains that adopt distinct tertiary conformations. Using the Threading/ASSEmbly/Refinement (TASSER) approach, tertiary structures were predicted for a total of 45 FKBPs in 23 species. These models were compared with previously characterized FKBP solution structures and the predicted structures were employed to identify groups of homologous proteins. The resulting classification may be utilized to infer functional roles of newly discovered FKBPs. The three-dimensional conformations revealed that this family may have undergone several modifications throughout evolution, including loss of N- and C-terminal regions, duplication of FKBP domains as well as insertions of entire functional motifs. Docking simulations suggest that additional sequence segments outside FKBP domains may modulate the binding affinity of FKBPs to immunosuppressive drugs. The docking models also indicate the presence of a helix-loop-helix (HLH) region within a subset of FKBPs, which may be responsible for the interaction between this group of proteins and nucleic acids.
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Affiliation(s)
- J A Somarelli
- Department of Biological Sciences, OE304, Florida International University, Miami, Florida 33199, USA
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44
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Lagoda G, Sezen SF, Liu T, Höke A, Burnett AL. FK506-binding protein localizations in human penile innervation. BJU Int 2008; 101:604-9. [DOI: 10.1111/j.1464-410x.2007.07290.x] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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45
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Abstract
PURPOSE OF REVIEW The calcineurin inhibitors cyclosporine and tacrolimus are important treatments for patients with active rheumatoid arthritis, especially in cases of resistance or intolerance to methotrexate or other disease-modifying antirheumatic drugs. Here, we discuss the mechanism, efficacy and safety of cyclosporine and tacrolimus in the treatment of rheumatoid arthritis. RECENT FINDINGS Recent clinical trials of cyclosporine have shown the advantages of its combination with methotrexate, glucocorticoids and leflunomide in the treatment of active rheumatoid arthritis. In Japan, tacrolimus monotherapy was found to be quite effective and combination therapy with methotrexate had positive results in an American study. The inhibitory effects of both drugs not only on T lymphocytes, but also on human osteoclast formation, have been demonstrated in basic studies. SUMMARY Cyclosporine and tacrolimus are clinically available disease-modifying antirheumatic drugs. Numerous clinical studies have shown the usefulness of these calcineurin inhibitors in monotherapy and also when combined with methotrexate. Although these drugs have similar effects, there are some differences in adverse reactions.
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Affiliation(s)
- Kanako Kitahara
- Department of Immunology, Toho University School of Medicine, Japan
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