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Klermund J, Rhiel M, Kocher T, Chmielewski KO, Bischof J, Andrieux G, El Gaz M, Hainzl S, Boerries M, Cornu TI, Koller U, Cathomen T. On- and off-target effects of paired CRISPR-Cas nickase in primary human cells. Mol Ther 2024; 32:1298-1310. [PMID: 38459694 PMCID: PMC11081867 DOI: 10.1016/j.ymthe.2024.03.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2023] [Revised: 01/28/2024] [Accepted: 03/05/2024] [Indexed: 03/10/2024] Open
Abstract
Undesired on- and off-target effects of CRISPR-Cas nucleases remain a challenge in genome editing. While the use of Cas9 nickases has been shown to minimize off-target mutagenesis, their use in therapeutic genome editing has been hampered by a lack of efficacy. To overcome this limitation, we and others have developed double-nickase-based strategies to generate staggered DNA double-strand breaks to mediate gene disruption or gene correction with high efficiency. However, the impact of paired single-strand nicks on genome integrity has remained largely unexplored. Here, we developed a novel CAST-seq pipeline, dual CAST, to characterize chromosomal aberrations induced by paired CRISPR-Cas9 nickases at three different loci in primary keratinocytes derived from patients with epidermolysis bullosa. While targeting COL7A1, COL17A1, or LAMA3 with Cas9 nucleases caused previously undescribed chromosomal rearrangements, no chromosomal translocations were detected following paired-nickase editing. While the double-nicking strategy induced large deletions/inversions within a 10 kb region surrounding the target sites at all three loci, similar to the nucleases, the chromosomal on-target aberrations were qualitatively different and included a high proportion of insertions. Taken together, our data indicate that double-nickase approaches combine efficient editing with greatly reduced off-target effects but still leave substantial chromosomal aberrations at on-target sites.
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Affiliation(s)
- Julia Klermund
- Institute for Transfusion Medicine and Gene Therapy, Medical Center - University of Freiburg, 79106 Freiburg, Germany; Center for Chronic Immunodeficiency (CCI), Medical Center - University of Freiburg, 79106 Freiburg, Germany
| | - Manuel Rhiel
- Institute for Transfusion Medicine and Gene Therapy, Medical Center - University of Freiburg, 79106 Freiburg, Germany; Center for Chronic Immunodeficiency (CCI), Medical Center - University of Freiburg, 79106 Freiburg, Germany
| | - Thomas Kocher
- EB House Austria, Research Program for Molecular Therapy of Genodermatoses, Department of Dermatology and Allergology, University Hospital of the Paracelsus Medical University Salzburg, 5020 Salzburg, Austria
| | - Kay Ole Chmielewski
- Institute for Transfusion Medicine and Gene Therapy, Medical Center - University of Freiburg, 79106 Freiburg, Germany; Center for Chronic Immunodeficiency (CCI), Medical Center - University of Freiburg, 79106 Freiburg, Germany; PhD Program, Faculty of Biology, University of Freiburg, 79104 Freiburg, Germany
| | - Johannes Bischof
- EB House Austria, Research Program for Molecular Therapy of Genodermatoses, Department of Dermatology and Allergology, University Hospital of the Paracelsus Medical University Salzburg, 5020 Salzburg, Austria
| | - Geoffroy Andrieux
- Institute of Medical Bioinformatics and Systems Medicine, Medical Center - University of Freiburg, 79110 Freiburg, Germany; Faculty of Medicine, University of Freiburg, 79110 Freiburg, Germany
| | - Melina El Gaz
- Institute for Transfusion Medicine and Gene Therapy, Medical Center - University of Freiburg, 79106 Freiburg, Germany; Center for Chronic Immunodeficiency (CCI), Medical Center - University of Freiburg, 79106 Freiburg, Germany
| | - Stefan Hainzl
- EB House Austria, Research Program for Molecular Therapy of Genodermatoses, Department of Dermatology and Allergology, University Hospital of the Paracelsus Medical University Salzburg, 5020 Salzburg, Austria
| | - Melanie Boerries
- Institute of Medical Bioinformatics and Systems Medicine, Medical Center - University of Freiburg, 79110 Freiburg, Germany; Faculty of Medicine, University of Freiburg, 79110 Freiburg, Germany; German Cancer Consortium (DKTK) and German Cancer Research Center (DKFZ), Partner Site Freiburg, 79106 Freiburg, Germany
| | - Tatjana I Cornu
- Institute for Transfusion Medicine and Gene Therapy, Medical Center - University of Freiburg, 79106 Freiburg, Germany; Center for Chronic Immunodeficiency (CCI), Medical Center - University of Freiburg, 79106 Freiburg, Germany; Faculty of Medicine, University of Freiburg, 79110 Freiburg, Germany
| | - Ulrich Koller
- EB House Austria, Research Program for Molecular Therapy of Genodermatoses, Department of Dermatology and Allergology, University Hospital of the Paracelsus Medical University Salzburg, 5020 Salzburg, Austria
| | - Toni Cathomen
- Institute for Transfusion Medicine and Gene Therapy, Medical Center - University of Freiburg, 79106 Freiburg, Germany; Center for Chronic Immunodeficiency (CCI), Medical Center - University of Freiburg, 79106 Freiburg, Germany; Faculty of Medicine, University of Freiburg, 79110 Freiburg, Germany.
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Ali FM, Zhou J, Wang M, Wang Q, Sun L, Mshenga MM, Lu H. Epidermolysis Bullosa: Two rare case reports of COL7A1 and EBS-GEN SEV KRT14 variants with review of literature. BMC Pediatr 2024; 24:242. [PMID: 38580989 PMCID: PMC10996244 DOI: 10.1186/s12887-024-04715-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/03/2023] [Accepted: 03/20/2024] [Indexed: 04/07/2024] Open
Abstract
EPIDERMOLYSIS Bullosa is a rare hereditary skin condition that causes blisters. Genes encoding structural proteins at or near the dermal-epidermal junction are mutated recessively or dominantly, and this is the primary cause of EB. Herein, two Chinese boys were diagnosed with the condition, each with a different variant in a gene that serves as a reference for EB genetic counseling. Skincare significantly impacted their prognosis and quality of life. CASE PRESENTATION Two Chinese boys, with phenotypically normal parents, have been diagnosed with distinct blister symptoms, one with Dominant Dystrophic Epidermolysis Bullosa and the other with a severe form of Epidermolysis Bullosa Simplex. The first patient had a G-to-A variant in the COL7A1 allele, at nucleotide position 6163 which was named "G2055A". The proband is heterozygous for Dystrophic Epidermolysis Bullosa due to a COL7A1 allele with a glycine substitution at the triple helix domain. A similar variant has been discovered in his mother, indicating its potential transmission to future generations. Another patient had severe Epidermolysis Bullosa Simplex with a rare c.377T > A variant resulting in substitution of amino acid p.Leu126Arg (NM_000526.5 (c.377T > G, p.Leu126Arg) in the Keratin 14 gene. In prior literature, Keratin 14 has been associated with an excellent prognosis. However, our patient with this infrequent variant tragically died from sepsis at 21 days old. There has been a reported occurrence of the variant only once. CONCLUSION Our study reveals that Epidermolysis Bullosa patients with COL7A1 c.6163G > A and KRT14 c.377T>A variants have different clinical presentations, with dominant forms of Dystrophic EB having milder phenotypes than recessive ones. Thus, the better prognosis in the c.6163G > A patient. Furthermore, c.377T>A patient was more prone to infection than the patient with c.6163G>A gene variant. Genetic testing is crucial for identifying the specific variant responsible and improving treatment options.
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Affiliation(s)
- Fatma Mabrouk Ali
- Department of Pediatrics, The Affiliated Hospital of Jiangsu University, Zhenjiang, Jiangsu, China
| | - Jieyu Zhou
- Department of Pediatrics, The Affiliated Hospital of Jiangsu University, Zhenjiang, Jiangsu, China
| | - Mingyan Wang
- Department of Pediatrics, The Affiliated Hospital of Jiangsu University, Zhenjiang, Jiangsu, China
| | - Qiuxia Wang
- Department of Pediatrics, The Affiliated Hospital of Jiangsu University, Zhenjiang, Jiangsu, China
| | - Lulu Sun
- Department of Pediatrics, The Affiliated Hospital of Jiangsu University, Zhenjiang, Jiangsu, China
| | | | - Hongyan Lu
- Department of Pediatrics, The Affiliated Hospital of Jiangsu University, Zhenjiang, Jiangsu, China.
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Tartaglia G, Fuentes I, Patel N, Varughese A, Israel LE, Park PH, Alexander MH, Poojan S, Cao Q, Solomon B, Padron ZM, Dyer JA, Mellerio JE, McGrath JA, Palisson F, Salas-Alanis J, Han L, South AP. Antiviral drugs prolong survival in murine recessive dystrophic epidermolysis bullosa. EMBO Mol Med 2024; 16:870-884. [PMID: 38462666 PMCID: PMC11018630 DOI: 10.1038/s44321-024-00048-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2023] [Revised: 02/16/2024] [Accepted: 02/19/2024] [Indexed: 03/12/2024] Open
Abstract
Recessive dystrophic epidermolysis bullosa (RDEB) is a rare inherited skin disease characterized by defects in type VII collagen leading to a range of fibrotic pathologies resulting from skin fragility, aberrant wound healing, and altered dermal fibroblast physiology. Using a novel in vitro model of fibrosis based on endogenously produced extracellular matrix, we screened an FDA-approved compound library and identified antivirals as a class of drug not previously associated with anti-fibrotic action. Preclinical validation of our lead hit, daclatasvir, in a mouse model of RDEB demonstrated significant improvement in fibrosis as well as overall quality of life with increased survival, weight gain and activity, and a decrease in pruritus-induced hair loss. Immunohistochemical assessment of daclatasvir-treated RDEB mouse skin showed a reduction in fibrotic markers, which was supported by in vitro data demonstrating TGFβ pathway targeting and a reduction of total collagen retained in the extracellular matrix. Our data support the clinical development of antivirals for the treatment of patients with RDEB and potentially other fibrotic diseases.
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Affiliation(s)
- Grace Tartaglia
- Department of Pharmacology, Physiology, and Cancer Biology, Thomas Jefferson University, Philadelphia, PA, USA
| | - Ignacia Fuentes
- DEBRA Chile, Santiago, Chile
- Departamento de Biología Celular y Molecular, Facultad de Ciencias Biológicas, Pontificia Universidad Católica de Chile, Santiago, Chile
- Centro de Genética y Genómica, Facultad de Medicina Clínica Alemana, Universidad de Desarrollo, Santiago, Chile
| | - Neil Patel
- School of Biomedical Engineering, Science and Health Systems, Drexel University, Philadelphia, PA, USA
| | - Abigail Varughese
- Department of Pharmacology, Physiology, and Cancer Biology, Thomas Jefferson University, Philadelphia, PA, USA
| | - Lauren E Israel
- Department of Pharmacology, Physiology, and Cancer Biology, Thomas Jefferson University, Philadelphia, PA, USA
| | - Pyung Hun Park
- Department of Pharmacology, Physiology, and Cancer Biology, Thomas Jefferson University, Philadelphia, PA, USA
| | - Michael H Alexander
- Department of Pharmacology, Physiology, and Cancer Biology, Thomas Jefferson University, Philadelphia, PA, USA
| | - Shiv Poojan
- Department of Pharmacology, Physiology, and Cancer Biology, Thomas Jefferson University, Philadelphia, PA, USA
| | - Qingqing Cao
- Department of Pharmacology, Physiology, and Cancer Biology, Thomas Jefferson University, Philadelphia, PA, USA
| | - Brenda Solomon
- Department of Pharmacology, Physiology, and Cancer Biology, Thomas Jefferson University, Philadelphia, PA, USA
| | - Zachary M Padron
- Department of Pharmacology, Physiology, and Cancer Biology, Thomas Jefferson University, Philadelphia, PA, USA
| | - Jonathan A Dyer
- Department of Dermatology, University of Missouri School of Medicine, Columbia, MO, USA
| | - Jemima E Mellerio
- St. John's Institute of Dermatology, King's College London (Guy's Campus), London, UK
| | - John A McGrath
- St. John's Institute of Dermatology, King's College London (Guy's Campus), London, UK
| | - Francis Palisson
- DEBRA Chile, Santiago, Chile
- Servicio de Dermatologia, Facultad de Medicina Clínica Alemana-Universidad de Desarrollo, Santiago, Chile
| | | | - Lin Han
- School of Biomedical Engineering, Science and Health Systems, Drexel University, Philadelphia, PA, USA
| | - Andrew P South
- Department of Pharmacology, Physiology, and Cancer Biology, Thomas Jefferson University, Philadelphia, PA, USA.
- The Joan and Joel Rosenbloom Research Center for Fibrotic Diseases, Thomas Jefferson University, Philadelphia, PA, USA.
- Sidney Kimmel Cancer Center, Thomas Jefferson University, Philadelphia, PA, USA.
- Department of Otolaryngology Head and Neck Surgery, Thomas Jefferson University, Philadelphia, PA, USA.
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Kawakami Y, Kajita A, Hasui KI, Matsuda Y, Iwatsuki K, Morizane S. Elevated expression of interleukin-6 (IL-6) and serum amyloid A (SAA) in the skin and the serum of recessive dystrophic epidermolysis bullosa: Skin as a possible source of IL-6 through Toll-like receptor ligands and SAA. Exp Dermatol 2024; 33:e15040. [PMID: 38429888 DOI: 10.1111/exd.15040] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2023] [Revised: 01/17/2024] [Accepted: 02/10/2024] [Indexed: 03/03/2024]
Abstract
The effect of persistent skin inflammation on extracutaneous organs and blood is not well studied. Patients with recessive dystrophic epidermolysis bullosa (RDEB), a severe form of the inherited blistering skin disorder, have widespread and persistent skin ulcers, and they develop various complications including anaemia, hyperglobulinaemia, hypoalbuminaemia and secondary amyloidosis. These complications are associated with the bioactivities of IL-6, and the development of secondary amyloidosis requires the persistent elevation of serum amyloid A (SAA) level. We found that patients with RDEB had significantly higher serum levels of IL-6 and SAA compared to healthy volunteers and patients with psoriasis or atopic dermatitis. Both IL-6 and SAA were highly expressed in epidermal keratinocytes and dermal fibroblasts of the skin ulcer lesions. Keratinocytes and fibroblasts surrounding the ulcer lesions are continuously exposed to Toll-like receptor (TLR) ligands, pathogen-associated and damage-associated molecular pattern molecules. In vitro, TLR ligands induced IL-6 expression via NF-κB in normal human epidermal keratinocytes (NHEKs) and dermal fibroblasts (NHDFs). SAA further induced the expression of IL-6 via TLR1/2 and NF-κB in NHEKs and NHDFs. The limitation of this study is that NHEKs and NHDFs were not derived from RDEB patients. These observations suggest that TLR-mediated persistent skin inflammation might increase the risk of IL-6-related systemic complications, including RDEB.
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Affiliation(s)
- Yoshio Kawakami
- Department of Dermatology, Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences, Okayama University, Okayama, Japan
| | - Ai Kajita
- Department of Dermatology, Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences, Okayama University, Okayama, Japan
| | - Ken-Ichi Hasui
- Department of Dermatology, Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences, Okayama University, Okayama, Japan
| | - Yoshihiro Matsuda
- Department of Dermatology, Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences, Okayama University, Okayama, Japan
| | - Keiji Iwatsuki
- Department of Dermatology, Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences, Okayama University, Okayama, Japan
| | - Shin Morizane
- Department of Dermatology, Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences, Okayama University, Okayama, Japan
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5
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Ropret S, Khurana P, Fabčič T, Cvetkovska J, Trobec A, Jokhadar ŠZ, Ilic D, McGrath JA, Guttmann-Gruber C, Liovic M. Induced pluripotent stem cell (iPSC) line MLi005-A derived from a patient with dominant dystrophic epidermolysis bullosa (DDEB). Stem Cell Res 2024; 75:103306. [PMID: 38271763 DOI: 10.1016/j.scr.2024.103306] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/20/2023] [Revised: 12/22/2023] [Accepted: 01/04/2024] [Indexed: 01/27/2024] Open
Abstract
We have generated MLi005-A, a new induced pluripotent stem cell (iPSC) line derived from skin fibroblasts of a male patient with dominant dystrophic epidermolysis bullosa (DDEB). This iPSC line may be used as a model system for studies on skin integrity, the extracellular matrix and skin barrier function. The characterization of the MLi005-A cell line consisted of molecular karyotyping, next-generation sequencing of the COL7A1 alleles, pluripotency and differentiation potentials testing by immunofluorescence of associated markers in vitro. The MLi-005A line has been also tested for ability to differentiate into fibroblasts and keratinocytes and markers associated with these cell types.
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Affiliation(s)
- Sandra Ropret
- Medical Center for Molecular Biology, Faculty of Medicine, University of Ljubljana, Slovenia
| | - Preeti Khurana
- Stem Cell Lab, Department of Women and Children's Health, School of Life Course Sciences, Faculty of Life Sciences and Medicine, King's College London and Assisted Conception Unit, Guy's Hospital, London, UK
| | - Tara Fabčič
- Medical Center for Molecular Biology, Faculty of Medicine, University of Ljubljana, Slovenia
| | - Janina Cvetkovska
- Medical Center for Molecular Biology, Faculty of Medicine, University of Ljubljana, Slovenia
| | - Ana Trobec
- Medical Center for Molecular Biology, Faculty of Medicine, University of Ljubljana, Slovenia
| | | | - Dusko Ilic
- Stem Cell Lab, Department of Women and Children's Health, School of Life Course Sciences, Faculty of Life Sciences and Medicine, King's College London and Assisted Conception Unit, Guy's Hospital, London, UK
| | - John A McGrath
- Genetic Skin Disease Group, St John's Institute of Dermatology, Guy's Hospital, London, UK
| | - Christina Guttmann-Gruber
- EB House Austria, Research Program for Molecular Therapy of Genodermatoses, Department of Dermatology and Allergology, University Hospital of the Paracelsus Medical University, Salzburg, Austria
| | - Mirjana Liovic
- Medical Center for Molecular Biology, Faculty of Medicine, University of Ljubljana, Slovenia.
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6
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Kikuchi Y, Tamakoshi T, Ishida R, Kobayashi R, Mori S, Ishida-Yamamoto A, Fujimoto M, Kaneda Y, Tamai K. Gene-Modified Blister Fluid-Derived Mesenchymal Stromal Cells for Treating Recessive Dystrophic Epidermolysis Bullosa. J Invest Dermatol 2023; 143:2447-2455.e8. [PMID: 37302620 DOI: 10.1016/j.jid.2023.05.021] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2023] [Revised: 04/29/2023] [Accepted: 05/11/2023] [Indexed: 06/13/2023]
Abstract
Recessive dystrophic epidermolysis bullosa (RDEB) is a genodermatosis caused by variants in COL7A1-encoded type VII collagen, a major component of anchoring fibrils. In this study, we developed an ex vivo gene therapy for RDEB using autologous mesenchymal stromal cells (MSCs). On the basis of our previous studies, we first attempted to isolate MSCs from the blister fluid of patients with RDEB and succeeded in obtaining cells with a set of MSC characteristics from all 10 patients. We termed these cells blister fluid-derived MSCs. Blister fluid-derived MSCs were genetically modified and injected into skins of type VII collagen-deficient neonatal mice transplanted onto immunodeficient mice, resulting in continuous and widespread expression of type VII collagen at the dermal-epidermal junction, particularly when administered into blisters. When injected intradermally, the efforts were not successful. The gene-modified blister fluid-derived MSCs could be cultured as cell sheets and applied to the dermis with an efficacy equivalent to that of intrablister administration. In conclusion, we successfully developed a minimally invasive and highly efficient ex vivo gene therapy for RDEB. This study shows the successful application of gene therapy in the RDEB mouse model for both early blistering skin and advanced ulcerative lesions.
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Affiliation(s)
- Yasushi Kikuchi
- Department of Stem Cell Gene Therapy Science, Graduate School of Medicine, Osaka University, Suita, Japan; Department of Dermatology, Graduate School of Medicine, Osaka University, Suita, Japan
| | - Tomoki Tamakoshi
- Department of Stem Cell Therapy Science, Graduate School of Medicine, Osaka University, Suita, Japan
| | | | | | - Shiho Mori
- Department of Dermatology, Graduate School of Medicine, Osaka University, Suita, Japan; Department of Stem Cell Therapy Science, Graduate School of Medicine, Osaka University, Suita, Japan
| | | | - Manabu Fujimoto
- Department of Dermatology, Graduate School of Medicine, Osaka University, Suita, Japan
| | - Yasufumi Kaneda
- Division of Gene Therapy Science, Graduate School of Medicine, Osaka University, Suita, Japan
| | - Katsuto Tamai
- Department of Dermatology, Graduate School of Medicine, Osaka University, Suita, Japan; Department of Stem Cell Therapy Science, Graduate School of Medicine, Osaka University, Suita, Japan.
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He J, Hu J, Liu H. A three-gene random forest model for diagnosing idiopathic pulmonary fibrosis based on circadian rhythm-related genes in lung tissue. Expert Rev Respir Med 2023; 17:1307-1320. [PMID: 38285622 DOI: 10.1080/17476348.2024.2311262] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2023] [Accepted: 01/24/2024] [Indexed: 01/31/2024]
Abstract
BACKGROUND The disorder of circadian rhythm could be a key factor mediating fibrotic lung disease Therefore, our study aims to determine the diagnostic value of circadian rhythm-related genes (CRRGs) in IPF. METHODS We retrieved the data on CRRGs from previous studies and the GSE150910 dataset. The participants from the GSE150910 dataset were divided into training and internal validation sets. Next, we used several various bioinformatics methods and machine learning algorithms to screen genes. Next, we identified SEMA5A, COL7A1, and TUBB3, which were included in the random forest (RF) diagnostic model. Finally, external validation was conducted on data retrieved from the GSE184316 datasets. RESULTS The results revealed that the RF diagnostic model could diagnose patients with IPF in the internal validation set with the area under the ROC curve (AUC) value of 0.905 and in the external validation with the AUC value of 0.767. Furthermore, real-time quantitative PCR and western blotting results revealed a significant decrease in SEMA5A (p < 0.05) expression level and an increase in COL7A1 and TUBB3 expression levels in TGF-β1-treated normal human lung fibroblasts. CONCLUSION We constructed an RF diagnostic model based on SEMA5A, COL7A1, and TUBB3 expression in lung tissue for diagnosing patients with IPF.
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Affiliation(s)
- Jie He
- Clinical Medical College of Chengdu Medical College, Chengdu, Sichuan, China
- Department of Pulmonary and Critical Care Medicine, The First Affiliated Hospital of Chengdu Medical College, Chengdu, Sichuan, China
| | - Jun Hu
- Clinical Medical College of Chengdu Medical College, Chengdu, Sichuan, China
- Department of Otolaryngology - Head and Neck Surgery, The First Affiliated Hospital of Chengdu Medical College, Chengdu, Sichuan, China
| | - Hairong Liu
- Clinical Medical College of Chengdu Medical College, Chengdu, Sichuan, China
- Department of Geriatric Medicine, The First Affiliated Hospital of Chengdu Medical College, Chengdu, Sichuan, China
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8
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Chen Z, Chen X, Zhu B, Yu H, Bao X, Hou Y, Song W, Sun S, Li Z. TGF-β1 Triggers Salivary Hypofunction via Attenuating Protein Secretion and AQP5 Expression in Human Submandibular Gland Cells. J Proteome Res 2023; 22:2803-2813. [PMID: 37549151 DOI: 10.1021/acs.jproteome.3c00052] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/09/2023]
Abstract
Aging-related salivary gland degeneration usually causes poor oral health. Periductal fibrosis frequently occurs in the submandibular gland of the elderly. Transforming growth factor β1 (TGF-β1) is the primary driving factor for fibrosis, which exhibits an increase in the fibrotic submandibular gland tissue. This study aimed to investigate the effects of TGF-β1 on the human submandibular gland (HSG) cell secretory function and its influences on aquaporin 5 (AQP5) expressions and distribution. We found that TGF-β1 reduces the protein secretion amount of HSG and leads to the abundance alteration of 151 secretory proteins. Data are available via ProteomeXchange with the identifier PXD043185. The majority of HSG secretory proteins (84.11%) could be matched to the human saliva proteome. Meanwhile, TGF-β1 enhances the expression of COL4A2, COL5A1, COL7A1, COL1A1, COL2A1, and α-SMA, hinting that TGF-β1 possesses the potential to drive HSG fibrosis-related events. Besides, TGF-β1 also attenuates the AQP5 expression and its membrane distribution in HSGs. The percentage for TGF-β1-induced AQP5 reduction (52.28%) is much greater than that of the TGF-β1-induced secretory protein concentration reduction (16.53%). Taken together, we concluded that TGF-β1 triggers salivary hypofunction via attenuating protein secretion and AQP5 expression in HSGs, which may be associated with TGF-β1-driven fibrosis events in HSGs.
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Affiliation(s)
- Zhuo Chen
- Laboratory for Functional Glycomics, College of Life Sciences, Northwest University, Xi'an 710069, P. R. China
| | - Xiangqin Chen
- Laboratory for Functional Glycomics, College of Life Sciences, Northwest University, Xi'an 710069, P. R. China
| | - Bojing Zhu
- College of Life Sciences, Northwest University, Xi'an 710069, P. R. China
| | - Hanjie Yu
- Laboratory for Functional Glycomics, College of Life Sciences, Northwest University, Xi'an 710069, P. R. China
| | - Xiaojuan Bao
- Laboratory for Functional Glycomics, College of Life Sciences, Northwest University, Xi'an 710069, P. R. China
| | - Yao Hou
- Laboratory for Functional Glycomics, College of Life Sciences, Northwest University, Xi'an 710069, P. R. China
| | - Wanghua Song
- Laboratory for Functional Glycomics, College of Life Sciences, Northwest University, Xi'an 710069, P. R. China
| | - Shisheng Sun
- College of Life Sciences, Northwest University, Xi'an 710069, P. R. China
| | - Zheng Li
- Laboratory for Functional Glycomics, College of Life Sciences, Northwest University, Xi'an 710069, P. R. China
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9
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Dieter K, Niebergall-Roth E, Daniele C, Fluhr S, Frank NY, Ganss C, Kiritsi D, McGrath JA, Tolar J, Frank MH, Kluth MA. ABCB5 + mesenchymal stromal cells facilitate complete and durable wound closure in recessive dystrophic epidermolysis bullosa. Cytotherapy 2023; 25:782-788. [PMID: 36868990 PMCID: PMC10257763 DOI: 10.1016/j.jcyt.2023.01.015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2022] [Revised: 01/30/2023] [Accepted: 01/31/2023] [Indexed: 03/05/2023]
Abstract
BACKGROUND AND AIMS Recessive dystrophic epidermolysis bullosa (RDEB) is a hereditary, rare, devastating and life-threatening skin fragility disorder with a high unmet medical need. In a recent international, single-arm clinical trial, treatment of 16 patients (aged 6-36 years) with three intravenous infusions of 2 × 106 immunomodulatory ABCB5+ dermal mesenchymal stromal cells (MSCs)/kg on days 0, 17 and 35 reduced disease activity, itch and pain. A post-hoc analysis was undertaken to assess the potential effects of treatment with ABCB5+ MSCs on the overall skin wound healing in patients suffering from RDEB. METHODS Documentary photographs of the affected body regions taken on days 0, 17, 35 and at 12 weeks were evaluated regarding proportion, temporal course and durability of wound closure as well as development of new wounds. RESULTS Of 168 baseline wounds in 14 patients, 109 (64.9%) wounds had closed at week 12, of which 63.3% (69 wounds) had closed already by day 35 or day 17. Conversely, 74.2% of the baseline wounds that had closed by day 17 or day 35 remained closed until week 12. First-closure ratio within 12 weeks was 75.6%. The median rate of newly developing wounds decreased significantly (P = 0.001) by 79.3%. CONCLUSIONS Comparison of the findings with published data from placebo arms and vehicle-treated wounds in controlled clinical trials suggests potential capability of ABCB5+ MSCs to facilitate wound closure, prolongate wound recurrence and decelerate formation of new wounds in RDEB. Beyond suggesting therapeutic efficacy for ABCB5+ MSCs, the analysis might stimulate researchers who develop therapies for RDEB and other skin fragility disorders to not only assess closure of preselected target wounds but pay attention to the patients' dynamic and diverse overall wound presentation as well as to the durability of achieved wound closure and the development of new wounds. TRIAL REGISTRATION Clinicaltrials.gov NCT03529877; EudraCT 2018-001009-98.
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Affiliation(s)
| | | | | | | | - Natasha Y Frank
- Department of Medicine, VA Boston Healthcare System, Boston, Massachusetts, USA; Division of Genetics, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts, USA; Transplant Research Program, Boston Children's Hospital, Harvard Medical School, Boston, Massachusetts, USA; Harvard Stem Cell Institute, Harvard University, Cambridge, Massachusetts, USA
| | - Christoph Ganss
- RHEACELL GmbH & Co. KG, Heidelberg, Germany; TICEBA GmbH, Heidelberg, Germany
| | - Dimitra Kiritsi
- Department of Dermatology, Medical Center - University of Freiburg, Faculty of Medicine, Freiburg, Germany
| | - John A McGrath
- St John's Institute of Dermatology, Guy's Hospital, King's College London, London, UK
| | - Jakub Tolar
- Division of Blood and Marrow Transplantation and Cellular Therapy, Department of Pediatrics, University of Minnesota M Health Fairview Masonic Children's Hospital, Minneapolis, Minnesota, USA
| | - Markus H Frank
- Transplant Research Program, Boston Children's Hospital, Harvard Medical School, Boston, Massachusetts, USA; Harvard Stem Cell Institute, Harvard University, Cambridge, Massachusetts, USA; Department of Dermatology, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts, USA; School of Medical and Health Sciences, Edith Cowan University, Perth, Western Australia, Australia
| | - Mark A Kluth
- RHEACELL GmbH & Co. KG, Heidelberg, Germany; TICEBA GmbH, Heidelberg, Germany.
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Niebergall-Roth E, Dieter K, Daniele C, Fluhr S, Khokhrina M, Silva I, Ganss C, Frank MH, Kluth MA. Kinetics of Wound Development and Healing Suggests a Skin-Stabilizing Effect of Allogeneic ABCB5 + Mesenchymal Stromal Cell Treatment in Recessive Dystrophic Epidermolysis Bullosa. Cells 2023; 12:1468. [PMID: 37296590 PMCID: PMC10252830 DOI: 10.3390/cells12111468] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2023] [Revised: 05/19/2023] [Accepted: 05/23/2023] [Indexed: 06/12/2023] Open
Abstract
Recessive dystrophic epidermolysis (RDEB) is a rare, inherited, and currently incurable skin blistering disorder characterized by cyclically recurring wounds coexisting with chronic non-healing wounds. In a recent clinical trial, three intravenous infusions of skin-derived ABCB5+ mesenchymal stromal cells (MSCs) to 14 patients with RDEB improved the healing of wounds that were present at baseline. Since in RDEB even minor mechanical forces perpetually provoke the development of new or recurrent wounds, a post-hoc analysis of patient photographs was performed to specifically assess the effects of ABCB5+ MSCs on new or recurrent wounds by evaluating 174 wounds that occurred after baseline. During 12 weeks of systemic treatment with ABCB5+ MSCs, the number of newly occurring wounds declined. When compared to the previously reported healing responses of the wounds present at baseline, the newly occurring wounds healed faster, and a greater portion of healed wounds remained stably closed. These data suggest a previously undescribed skin-stabilizing effect of treatment with ABCB5+ MSCs and support repeated dosing of ABCB5+ MSCs in RDEB to continuously slow the wound development and accelerate the healing of new or recurrent wounds before they become infected or progress to a chronic, difficult-to-heal stage.
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Affiliation(s)
| | | | | | - Silvia Fluhr
- RHEACELL GmbH & Co. KG, 69120 Heidelberg, Germany
| | | | - Ines Silva
- RHEACELL GmbH & Co. KG, 69120 Heidelberg, Germany
| | | | - Markus H. Frank
- Department of Dermatology, Brigham and Women’s Hospital, Harvard Medical School, Boston, MA 02115, USA
- Harvard Stem Cell Institute, Harvard University, Cambridge, MA 02138, USA
- Transplant Research Program, Boston Children’s Hospital, Harvard Medical School, Boston, MA 02115, USA
- School of Medical and Health Sciences, Edith Cowan University, Perth 6027, Australia
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11
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Guide SV, Gonzalez ME, Bağcı IS, Agostini B, Chen H, Feeney G, Steimer M, Kapadia B, Sridhar K, Quesada Sanchez L, Gonzalez F, Van Ligten M, Parry TJ, Chitra S, Kammerman LA, Krishnan S, Marinkovich MP. Trial of Beremagene Geperpavec (B-VEC) for Dystrophic Epidermolysis Bullosa. N Engl J Med 2022; 387:2211-2219. [PMID: 36516090 DOI: 10.1056/nejmoa2206663] [Citation(s) in RCA: 29] [Impact Index Per Article: 14.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
BACKGROUND Dystrophic epidermolysis bullosa is a rare genetic blistering skin disease caused by mutations in COL7A1, which encodes type VII collagen (C7). Beremagene geperpavec (B-VEC) is a topical investigational herpes simplex virus type 1 (HSV-1)-based gene therapy designed to restore C7 protein by delivering COL7A1. METHODS We conducted a phase 3, double-blind, intrapatient randomized, placebo-controlled trial involving patients 6 months of age or older with genetically confirmed dystrophic epidermolysis bullosa. For each patient, a primary wound pair was selected, with the wounds matched according to size, region, and appearance. The wounds within each pair were randomly assigned in a 1:1 ratio to receive weekly application of either B-VEC or placebo for 26 weeks. The primary end point was complete wound healing of treated as compared with untreated wounds at 6 months. Secondary end points included complete wound healing at 3 months and the change from baseline to weeks 22, 24, and 26 in pain severity during changes in wound dressing, assessed with the use of a visual analogue scale (scores range from 0 to 10, with higher scores indicating greater pain). RESULTS Primary wound pairs were exposed to B-VEC and placebo in 31 patients. At 6 months, complete wound healing occurred in 67% of the wounds exposed to B-VEC as compared with 22% of those exposed to placebo (difference, 46 percentage points; 95% confidence interval [CI], 24 to 68; P = 0.002). Complete wound healing at 3 months occurred in 71% of the wounds exposed to B-VEC as compared with 20% of those exposed to placebo (difference, 51 percentage points; 95% CI, 29 to 73; P<0.001). The mean change from baseline to week 22 in pain severity during wound-dressing changes was -0.88 with B-VEC and -0.71 with placebo (adjusted least-squares mean difference, -0.61; 95% CI, -1.10 to -0.13); similar mean changes were observed at weeks 24 and 26. Adverse events with B-VEC and placebo included pruritus and chills. CONCLUSIONS Complete wound healing at 3 and 6 months in patients with dystrophic epidermolysis bullosa was more likely with topical administration of B-VEC than with placebo. Pruritus and mild systemic side effects were observed in patients treated with B-VEC. Longer and larger trials are warranted to determine the durability and side effects of B-VEC for this disease. (Funded by Krystal Biotech; GEM-3 ClinicalTrials.gov number, NCT04491604.).
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Affiliation(s)
- Shireen V Guide
- From the Mission Dermatology Center, Department of Dermatology, Children's Hospital of Orange County, University of California Irvine, Rancho Santa Margarita (S.V.G., M.V.L.), the Department of Dermatology, Stanford University School of Medicine, Stanford (I.S.B., K.S., M.P.M.), and the Veterans Affairs Medical Center, Palo Alto (M.P.M.) - all in California; Pediatric Skin Research, Coral Gables, FL (M.E.G., L.Q.S., F.G.); Krystal Biotech, Pittsburgh (B.A., H.C., G.F., M.S., B.K., T.J.P., S.K.); Savio Group Analytics, Hockessin, DE (S.C.); and Kammerman Consulting, Chevy Chase, MD (L.A.K.)
| | - Mercedes E Gonzalez
- From the Mission Dermatology Center, Department of Dermatology, Children's Hospital of Orange County, University of California Irvine, Rancho Santa Margarita (S.V.G., M.V.L.), the Department of Dermatology, Stanford University School of Medicine, Stanford (I.S.B., K.S., M.P.M.), and the Veterans Affairs Medical Center, Palo Alto (M.P.M.) - all in California; Pediatric Skin Research, Coral Gables, FL (M.E.G., L.Q.S., F.G.); Krystal Biotech, Pittsburgh (B.A., H.C., G.F., M.S., B.K., T.J.P., S.K.); Savio Group Analytics, Hockessin, DE (S.C.); and Kammerman Consulting, Chevy Chase, MD (L.A.K.)
| | - I Sinem Bağcı
- From the Mission Dermatology Center, Department of Dermatology, Children's Hospital of Orange County, University of California Irvine, Rancho Santa Margarita (S.V.G., M.V.L.), the Department of Dermatology, Stanford University School of Medicine, Stanford (I.S.B., K.S., M.P.M.), and the Veterans Affairs Medical Center, Palo Alto (M.P.M.) - all in California; Pediatric Skin Research, Coral Gables, FL (M.E.G., L.Q.S., F.G.); Krystal Biotech, Pittsburgh (B.A., H.C., G.F., M.S., B.K., T.J.P., S.K.); Savio Group Analytics, Hockessin, DE (S.C.); and Kammerman Consulting, Chevy Chase, MD (L.A.K.)
| | - Brittani Agostini
- From the Mission Dermatology Center, Department of Dermatology, Children's Hospital of Orange County, University of California Irvine, Rancho Santa Margarita (S.V.G., M.V.L.), the Department of Dermatology, Stanford University School of Medicine, Stanford (I.S.B., K.S., M.P.M.), and the Veterans Affairs Medical Center, Palo Alto (M.P.M.) - all in California; Pediatric Skin Research, Coral Gables, FL (M.E.G., L.Q.S., F.G.); Krystal Biotech, Pittsburgh (B.A., H.C., G.F., M.S., B.K., T.J.P., S.K.); Savio Group Analytics, Hockessin, DE (S.C.); and Kammerman Consulting, Chevy Chase, MD (L.A.K.)
| | - Hubert Chen
- From the Mission Dermatology Center, Department of Dermatology, Children's Hospital of Orange County, University of California Irvine, Rancho Santa Margarita (S.V.G., M.V.L.), the Department of Dermatology, Stanford University School of Medicine, Stanford (I.S.B., K.S., M.P.M.), and the Veterans Affairs Medical Center, Palo Alto (M.P.M.) - all in California; Pediatric Skin Research, Coral Gables, FL (M.E.G., L.Q.S., F.G.); Krystal Biotech, Pittsburgh (B.A., H.C., G.F., M.S., B.K., T.J.P., S.K.); Savio Group Analytics, Hockessin, DE (S.C.); and Kammerman Consulting, Chevy Chase, MD (L.A.K.)
| | - Gloria Feeney
- From the Mission Dermatology Center, Department of Dermatology, Children's Hospital of Orange County, University of California Irvine, Rancho Santa Margarita (S.V.G., M.V.L.), the Department of Dermatology, Stanford University School of Medicine, Stanford (I.S.B., K.S., M.P.M.), and the Veterans Affairs Medical Center, Palo Alto (M.P.M.) - all in California; Pediatric Skin Research, Coral Gables, FL (M.E.G., L.Q.S., F.G.); Krystal Biotech, Pittsburgh (B.A., H.C., G.F., M.S., B.K., T.J.P., S.K.); Savio Group Analytics, Hockessin, DE (S.C.); and Kammerman Consulting, Chevy Chase, MD (L.A.K.)
| | - Molly Steimer
- From the Mission Dermatology Center, Department of Dermatology, Children's Hospital of Orange County, University of California Irvine, Rancho Santa Margarita (S.V.G., M.V.L.), the Department of Dermatology, Stanford University School of Medicine, Stanford (I.S.B., K.S., M.P.M.), and the Veterans Affairs Medical Center, Palo Alto (M.P.M.) - all in California; Pediatric Skin Research, Coral Gables, FL (M.E.G., L.Q.S., F.G.); Krystal Biotech, Pittsburgh (B.A., H.C., G.F., M.S., B.K., T.J.P., S.K.); Savio Group Analytics, Hockessin, DE (S.C.); and Kammerman Consulting, Chevy Chase, MD (L.A.K.)
| | - Binoy Kapadia
- From the Mission Dermatology Center, Department of Dermatology, Children's Hospital of Orange County, University of California Irvine, Rancho Santa Margarita (S.V.G., M.V.L.), the Department of Dermatology, Stanford University School of Medicine, Stanford (I.S.B., K.S., M.P.M.), and the Veterans Affairs Medical Center, Palo Alto (M.P.M.) - all in California; Pediatric Skin Research, Coral Gables, FL (M.E.G., L.Q.S., F.G.); Krystal Biotech, Pittsburgh (B.A., H.C., G.F., M.S., B.K., T.J.P., S.K.); Savio Group Analytics, Hockessin, DE (S.C.); and Kammerman Consulting, Chevy Chase, MD (L.A.K.)
| | - Kunju Sridhar
- From the Mission Dermatology Center, Department of Dermatology, Children's Hospital of Orange County, University of California Irvine, Rancho Santa Margarita (S.V.G., M.V.L.), the Department of Dermatology, Stanford University School of Medicine, Stanford (I.S.B., K.S., M.P.M.), and the Veterans Affairs Medical Center, Palo Alto (M.P.M.) - all in California; Pediatric Skin Research, Coral Gables, FL (M.E.G., L.Q.S., F.G.); Krystal Biotech, Pittsburgh (B.A., H.C., G.F., M.S., B.K., T.J.P., S.K.); Savio Group Analytics, Hockessin, DE (S.C.); and Kammerman Consulting, Chevy Chase, MD (L.A.K.)
| | - Lori Quesada Sanchez
- From the Mission Dermatology Center, Department of Dermatology, Children's Hospital of Orange County, University of California Irvine, Rancho Santa Margarita (S.V.G., M.V.L.), the Department of Dermatology, Stanford University School of Medicine, Stanford (I.S.B., K.S., M.P.M.), and the Veterans Affairs Medical Center, Palo Alto (M.P.M.) - all in California; Pediatric Skin Research, Coral Gables, FL (M.E.G., L.Q.S., F.G.); Krystal Biotech, Pittsburgh (B.A., H.C., G.F., M.S., B.K., T.J.P., S.K.); Savio Group Analytics, Hockessin, DE (S.C.); and Kammerman Consulting, Chevy Chase, MD (L.A.K.)
| | - Franshesca Gonzalez
- From the Mission Dermatology Center, Department of Dermatology, Children's Hospital of Orange County, University of California Irvine, Rancho Santa Margarita (S.V.G., M.V.L.), the Department of Dermatology, Stanford University School of Medicine, Stanford (I.S.B., K.S., M.P.M.), and the Veterans Affairs Medical Center, Palo Alto (M.P.M.) - all in California; Pediatric Skin Research, Coral Gables, FL (M.E.G., L.Q.S., F.G.); Krystal Biotech, Pittsburgh (B.A., H.C., G.F., M.S., B.K., T.J.P., S.K.); Savio Group Analytics, Hockessin, DE (S.C.); and Kammerman Consulting, Chevy Chase, MD (L.A.K.)
| | - Matthew Van Ligten
- From the Mission Dermatology Center, Department of Dermatology, Children's Hospital of Orange County, University of California Irvine, Rancho Santa Margarita (S.V.G., M.V.L.), the Department of Dermatology, Stanford University School of Medicine, Stanford (I.S.B., K.S., M.P.M.), and the Veterans Affairs Medical Center, Palo Alto (M.P.M.) - all in California; Pediatric Skin Research, Coral Gables, FL (M.E.G., L.Q.S., F.G.); Krystal Biotech, Pittsburgh (B.A., H.C., G.F., M.S., B.K., T.J.P., S.K.); Savio Group Analytics, Hockessin, DE (S.C.); and Kammerman Consulting, Chevy Chase, MD (L.A.K.)
| | - Trevor J Parry
- From the Mission Dermatology Center, Department of Dermatology, Children's Hospital of Orange County, University of California Irvine, Rancho Santa Margarita (S.V.G., M.V.L.), the Department of Dermatology, Stanford University School of Medicine, Stanford (I.S.B., K.S., M.P.M.), and the Veterans Affairs Medical Center, Palo Alto (M.P.M.) - all in California; Pediatric Skin Research, Coral Gables, FL (M.E.G., L.Q.S., F.G.); Krystal Biotech, Pittsburgh (B.A., H.C., G.F., M.S., B.K., T.J.P., S.K.); Savio Group Analytics, Hockessin, DE (S.C.); and Kammerman Consulting, Chevy Chase, MD (L.A.K.)
| | - Surya Chitra
- From the Mission Dermatology Center, Department of Dermatology, Children's Hospital of Orange County, University of California Irvine, Rancho Santa Margarita (S.V.G., M.V.L.), the Department of Dermatology, Stanford University School of Medicine, Stanford (I.S.B., K.S., M.P.M.), and the Veterans Affairs Medical Center, Palo Alto (M.P.M.) - all in California; Pediatric Skin Research, Coral Gables, FL (M.E.G., L.Q.S., F.G.); Krystal Biotech, Pittsburgh (B.A., H.C., G.F., M.S., B.K., T.J.P., S.K.); Savio Group Analytics, Hockessin, DE (S.C.); and Kammerman Consulting, Chevy Chase, MD (L.A.K.)
| | - Lisa A Kammerman
- From the Mission Dermatology Center, Department of Dermatology, Children's Hospital of Orange County, University of California Irvine, Rancho Santa Margarita (S.V.G., M.V.L.), the Department of Dermatology, Stanford University School of Medicine, Stanford (I.S.B., K.S., M.P.M.), and the Veterans Affairs Medical Center, Palo Alto (M.P.M.) - all in California; Pediatric Skin Research, Coral Gables, FL (M.E.G., L.Q.S., F.G.); Krystal Biotech, Pittsburgh (B.A., H.C., G.F., M.S., B.K., T.J.P., S.K.); Savio Group Analytics, Hockessin, DE (S.C.); and Kammerman Consulting, Chevy Chase, MD (L.A.K.)
| | - Suma Krishnan
- From the Mission Dermatology Center, Department of Dermatology, Children's Hospital of Orange County, University of California Irvine, Rancho Santa Margarita (S.V.G., M.V.L.), the Department of Dermatology, Stanford University School of Medicine, Stanford (I.S.B., K.S., M.P.M.), and the Veterans Affairs Medical Center, Palo Alto (M.P.M.) - all in California; Pediatric Skin Research, Coral Gables, FL (M.E.G., L.Q.S., F.G.); Krystal Biotech, Pittsburgh (B.A., H.C., G.F., M.S., B.K., T.J.P., S.K.); Savio Group Analytics, Hockessin, DE (S.C.); and Kammerman Consulting, Chevy Chase, MD (L.A.K.)
| | - M Peter Marinkovich
- From the Mission Dermatology Center, Department of Dermatology, Children's Hospital of Orange County, University of California Irvine, Rancho Santa Margarita (S.V.G., M.V.L.), the Department of Dermatology, Stanford University School of Medicine, Stanford (I.S.B., K.S., M.P.M.), and the Veterans Affairs Medical Center, Palo Alto (M.P.M.) - all in California; Pediatric Skin Research, Coral Gables, FL (M.E.G., L.Q.S., F.G.); Krystal Biotech, Pittsburgh (B.A., H.C., G.F., M.S., B.K., T.J.P., S.K.); Savio Group Analytics, Hockessin, DE (S.C.); and Kammerman Consulting, Chevy Chase, MD (L.A.K.)
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Sheriff A, Guri I, Zebrowska P, Llopis-Hernandez V, Brooks IR, Tekkela S, Subramaniam K, Gebrezgabher R, Naso G, Petrova A, Balon K, Onoufriadis A, Kujawa D, Kotulska M, Newby G, Łaczmański Ł, Liu DR, McGrath JA, Jacków J. ABE8e adenine base editor precisely and efficiently corrects a recurrent COL7A1 nonsense mutation. Sci Rep 2022; 12:19643. [PMID: 36385635 PMCID: PMC9666996 DOI: 10.1038/s41598-022-24184-8] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2022] [Accepted: 11/11/2022] [Indexed: 11/17/2022] Open
Abstract
Base editing introduces precise single-nucleotide edits in genomic DNA and has the potential to treat genetic diseases such as the blistering skin disease recessive dystrophic epidermolysis bullosa (RDEB), which is characterized by mutations in the COL7A1 gene and type VII collagen (C7) deficiency. Adenine base editors (ABEs) convert A-T base pairs to G-C base pairs without requiring double-stranded DNA breaks or donor DNA templates. Here, we use ABE8e, a recently evolved ABE, to correct primary RDEB patient fibroblasts harboring the recurrent RDEB nonsense mutation c.5047 C > T (p.Arg1683Ter) in exon 54 of COL7A1 and use a next generation sequencing workflow to interrogate post-treatment outcomes. Electroporation of ABE8e mRNA into a bulk population of RDEB patient fibroblasts resulted in remarkably efficient (94.6%) correction of the pathogenic allele, restoring COL7A1 mRNA and expression of C7 protein in western blots and in 3D skin constructs. Off-target DNA analysis did not detect off-target editing in treated patient-derived fibroblasts and there was no detectable increase in A-to-I changes in the RNA. Taken together, we have established a highly efficient pipeline for gene correction in primary fibroblasts with a favorable safety profile. This work lays a foundation for developing therapies for RDEB patients using ex vivo or in vivo base editing strategies.
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Affiliation(s)
- Adam Sheriff
- St John's Institute of Dermatology, Faculty of Life Sciences and Medicine, King's College London, 9th Floor Tower Wing, Guy's Hospital, Great Maze Pond Road, London, SE1 9RT, UK
| | - Ina Guri
- St John's Institute of Dermatology, Faculty of Life Sciences and Medicine, King's College London, 9th Floor Tower Wing, Guy's Hospital, Great Maze Pond Road, London, SE1 9RT, UK
| | - Paulina Zebrowska
- Hirszfeld Institute of Immunology and Experimental Therapy, Polish Academy of Sciences, Wroclaw, Poland
| | - Virginia Llopis-Hernandez
- St John's Institute of Dermatology, Faculty of Life Sciences and Medicine, King's College London, 9th Floor Tower Wing, Guy's Hospital, Great Maze Pond Road, London, SE1 9RT, UK
| | - Imogen R Brooks
- St John's Institute of Dermatology, Faculty of Life Sciences and Medicine, King's College London, 9th Floor Tower Wing, Guy's Hospital, Great Maze Pond Road, London, SE1 9RT, UK
| | - Stavroula Tekkela
- St John's Institute of Dermatology, Faculty of Life Sciences and Medicine, King's College London, 9th Floor Tower Wing, Guy's Hospital, Great Maze Pond Road, London, SE1 9RT, UK
| | - Kavita Subramaniam
- St John's Institute of Dermatology, Faculty of Life Sciences and Medicine, King's College London, 9th Floor Tower Wing, Guy's Hospital, Great Maze Pond Road, London, SE1 9RT, UK
| | - Ruta Gebrezgabher
- St John's Institute of Dermatology, Faculty of Life Sciences and Medicine, King's College London, 9th Floor Tower Wing, Guy's Hospital, Great Maze Pond Road, London, SE1 9RT, UK
| | - Gaetano Naso
- Molecular and Cellular Immunology Unit, UCL GOS Institute of Child Health, London, UK
| | - Anastasia Petrova
- Molecular and Cellular Immunology Unit, UCL GOS Institute of Child Health, London, UK
| | - Katarzyna Balon
- Hirszfeld Institute of Immunology and Experimental Therapy, Polish Academy of Sciences, Wroclaw, Poland
| | - Alexandros Onoufriadis
- St John's Institute of Dermatology, Faculty of Life Sciences and Medicine, King's College London, 9th Floor Tower Wing, Guy's Hospital, Great Maze Pond Road, London, SE1 9RT, UK
| | - Dorota Kujawa
- Hirszfeld Institute of Immunology and Experimental Therapy, Polish Academy of Sciences, Wroclaw, Poland
| | - Martyna Kotulska
- Hirszfeld Institute of Immunology and Experimental Therapy, Polish Academy of Sciences, Wroclaw, Poland
| | - Gregory Newby
- Merkin Institute of Transformative Technologies in Healthcare, Broad Institute of MIT and Harvard, Cambridge, MA, USA
- Department of Chemistry and Chemical Biology, Harvard University, Cambridge, MA, USA
- Howard Hughes Medical Institute, Harvard University, Cambridge, MA, USA
| | - Łukasz Łaczmański
- Hirszfeld Institute of Immunology and Experimental Therapy, Polish Academy of Sciences, Wroclaw, Poland
| | - David R Liu
- Merkin Institute of Transformative Technologies in Healthcare, Broad Institute of MIT and Harvard, Cambridge, MA, USA
- Department of Chemistry and Chemical Biology, Harvard University, Cambridge, MA, USA
- Howard Hughes Medical Institute, Harvard University, Cambridge, MA, USA
| | - John A McGrath
- St John's Institute of Dermatology, Faculty of Life Sciences and Medicine, King's College London, 9th Floor Tower Wing, Guy's Hospital, Great Maze Pond Road, London, SE1 9RT, UK
| | - Joanna Jacków
- St John's Institute of Dermatology, Faculty of Life Sciences and Medicine, King's College London, 9th Floor Tower Wing, Guy's Hospital, Great Maze Pond Road, London, SE1 9RT, UK.
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Chansaenroj A, Kornsuthisopon C, Roytrakul S, Phothichailert S, Rochanavibhata S, Fournier BPJ, Srithanyarat SS, Nowwarote N, Osathanon T. Indirect Immobilised Jagged-1 Enhances Matrisome Proteins Associated with Osteogenic Differentiation of Human Dental Pulp Stem Cells: A Proteomic Study. Int J Mol Sci 2022; 23:ijms232213897. [PMID: 36430375 PMCID: PMC9694941 DOI: 10.3390/ijms232213897] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2022] [Revised: 11/06/2022] [Accepted: 11/08/2022] [Indexed: 11/16/2022] Open
Abstract
The indirect immobilisation of Jagged-1 (Jagged-1) promoted osteogenic differentiation of human dental pulp cells (hDPs). Furthermore, the analysis of the Reactome pathway of RNA sequencing data indicates the upregulated genes involved with the extracellular matrix (ECM). Hence, our objective was to investigate the effects of Jagged-1 on proteomic profiles of human dental pulp stem cells (hDPSC). hDPSCs were cultured on the surface coated with human IgG Fc fragment (hFc) and the surface coated with rhJagged1/Fc recombinant protein-coated surface. Cells were differentiated to the osteogenic lineage using an osteogenic differentiation medium (OM) for 14 days, and cells cultured in a growth medium were used as a control. The protein component of the cultured cells was extracted into the cytosol, membrane, nucleus, and cytoskeletal compartment. Subsequently, the proteomic analysis was performed using liquid chromatography-tandem mass spectrometry (LC-MS). Metascape gene list analysis reported that Jagged-1 stimulated the expression of the membrane trafficking protein (DOP1B), which can indirectly improve osteogenic differentiation. hDPSCs cultured on Jagged-1 surface under OM condition expressed COL27A1, MXRA5, COL7A1, and MMP16, which played an important role in osteogenic differentiation. Furthermore, common matrisome proteins of all cellular components were related to osteogenesis/osteogenic differentiation. Additionally, the gene ontology categorised by the biological process of cytosol, membrane, and cytoskeleton compartments was associated with the biomineralisation process. The gene ontology of different culture conditions in each cellular component showed several unique gene ontologies. Remarkably, the Jagged-1_OM culture condition showed the biological process related to odontogenesis in the membrane compartment. In conclusion, the Jagged-1 induces osteogenic differentiation could, mainly through the regulation of protein in the membrane compartment.
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Affiliation(s)
- Ajjima Chansaenroj
- Dental Stem Cell Biology Research Unit, Faculty of Dentistry, Chulalongkorn University, Bangkok 10330, Thailand
| | - Chatvadee Kornsuthisopon
- Dental Stem Cell Biology Research Unit, Faculty of Dentistry, Chulalongkorn University, Bangkok 10330, Thailand
| | - Sittiruk Roytrakul
- National Center for Genetic Engineering and Biotechnology, National Science and Technology Development Agency, Pathum Thani 12120, Thailand
| | - Suphalak Phothichailert
- Dental Stem Cell Biology Research Unit, Faculty of Dentistry, Chulalongkorn University, Bangkok 10330, Thailand
| | - Sunisa Rochanavibhata
- Department of Oral and Maxillofacial Surgery, Faculty of Dentistry, Chulalongkorn University, Bangkok 10330, Thailand
| | - Benjamin P. J. Fournier
- Centre de Recherche des Cordeliers, Université Paris Cité, Sorbonne Université, INSERM UMR1138, Molecular Oral Pathophysiology, 75006 Paris, France
- Department of Oral Biology, Faculty of Dentistry, Université Paris Cité, 75006 Paris, France
| | | | - Nunthawan Nowwarote
- Centre de Recherche des Cordeliers, Université Paris Cité, Sorbonne Université, INSERM UMR1138, Molecular Oral Pathophysiology, 75006 Paris, France
- Department of Oral Biology, Faculty of Dentistry, Université Paris Cité, 75006 Paris, France
- Correspondence: (N.N.); (T.O.)
| | - Thanaphum Osathanon
- Dental Stem Cell Biology Research Unit, Faculty of Dentistry, Chulalongkorn University, Bangkok 10330, Thailand
- Department of Anatomy, Faculty of Dentistry, Chulalongkorn University, Bangkok 10330, Thailand
- Correspondence: (N.N.); (T.O.)
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14
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Riedl JA, Riddle M, Xia L, Eide C, Boull C, Ebens CL, Tolar J. Interrogation of RDEB Epidermal Allografts after BMT Reveals Coexpression of Collagen VII and Keratin 15 with Proinflammatory Immune Cells and Fibroblasts. J Invest Dermatol 2022; 142:2424-2434. [PMID: 35304249 PMCID: PMC9391265 DOI: 10.1016/j.jid.2022.01.034] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2021] [Revised: 01/18/2022] [Accepted: 01/29/2022] [Indexed: 11/16/2022]
Abstract
Recessive dystrophic epidermolysis bullosa (RDEB) is a devastating genodermatosis characterized by dysfunctional collagen VII protein resulting in epithelial blistering of the skin, mucosa, and gastrointestinal tract. There is no cure for RDEB, but improvement of clinical phenotype has been achieved with bone marrow transplantation and subsequent epidermal allografting from the bone marrow transplant donor. Epidermal allografting of these patients has decreased wound surface area for up to 3 years after treatment. This study aimed to determine the phenotype of the epidermal allograft cells responsible for durable persistence of wound healing and skin integrity. We found that epidermal allografts provide basal keratinocytes coexpressing collagen VII and basal stem cell marker keratin 15. Characterization of RDEB full-thickness skin biopsies with single-cell RNA sequencing uncovered proinflammatory immune and fibroblast phenotypes potentially driven by the local environment of RDEB skin. This is further highlighted by the presence of a myofibroblast population, which has not been described in healthy control human skin. Finally, we found inflammatory fibroblasts expressing profibrotic gene POSTN, which may have implications in the development of squamous cell carcinoma, a common, lethal complication of RDEB that lacks curative treatment. In conclusion, this study provides insights into and targets for future RDEB studies and treatments.
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Affiliation(s)
- Julia A Riedl
- Medical Scientist Training Program (MD/PhD), Medical School, University of Minnesota, Minneapolis, Minnesota, USA; Division of Pediatric Blood and Marrow Transplantation & Cellular Therapy, Department of Pediatrics, Medical School, University of Minnesota, Minneapolis, Minnesota, USA; Stem Cell Institute, Medical School, University of Minnesota, Minneapolis, Minnesota, USA
| | - Megan Riddle
- Division of Pediatric Blood and Marrow Transplantation & Cellular Therapy, Department of Pediatrics, Medical School, University of Minnesota, Minneapolis, Minnesota, USA
| | - Lily Xia
- Division of Pediatric Blood and Marrow Transplantation & Cellular Therapy, Department of Pediatrics, Medical School, University of Minnesota, Minneapolis, Minnesota, USA
| | - Cindy Eide
- Division of Pediatric Blood and Marrow Transplantation & Cellular Therapy, Department of Pediatrics, Medical School, University of Minnesota, Minneapolis, Minnesota, USA
| | - Christina Boull
- Division of Pediatric Dermatology, Department of Dermatology, Medical School, University of Minnesota, Minneapolis, Minnesota, USA
| | - Christen L Ebens
- Division of Pediatric Blood and Marrow Transplantation & Cellular Therapy, Department of Pediatrics, Medical School, University of Minnesota, Minneapolis, Minnesota, USA.
| | - Jakub Tolar
- Division of Pediatric Blood and Marrow Transplantation & Cellular Therapy, Department of Pediatrics, Medical School, University of Minnesota, Minneapolis, Minnesota, USA; Stem Cell Institute, Medical School, University of Minnesota, Minneapolis, Minnesota, USA
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15
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Han J, Deng H, Lyu Y, Xiao X, Zhao Y, Liu J, Guo Z, Liu X, Qiao L, Gao H, Lammi MJ. Identification of N-Glycoproteins of Knee Cartilage from Adult Osteoarthritis and Kashin-Beck Disease Based on Quantitative Glycoproteomics, Compared with Normal Control Cartilage. Cells 2022; 11:cells11162513. [PMID: 36010590 PMCID: PMC9406367 DOI: 10.3390/cells11162513] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2022] [Revised: 08/04/2022] [Accepted: 08/09/2022] [Indexed: 11/16/2022] Open
Abstract
Glycoproteins are involved in the development of many diseases, while the type and content of N-glycoproteins in the cartilage of osteoarthritis (OA) and Kashin-Beck disease (KBD) are still unclear. This research aims to identify N-glycoproteins in knee cartilage patients with OA and KBD compared with normal control (N) adults. The cartilage samples were collected from gender- and age-matched OA (n = 9), KBD (n = 9) patients, and N (n = 9) adults. Glycoproteomics and label-free liquid chromatography-tandem mass spectrometry (LC-MS/MS) obtained N-glycoproteins of KBD and OA. A total of 594 N-glycoproteins and 1146 N-glycosylation peptides were identified. The identified data were further compared and analyzed with Gene Ontology (GO), Kyoto Encyclopedia of Genes and Genomes (KEGG), and Protein-Protein Interactions (PPI). Pairwise comparison of the glycoproteins detected in the three groups showed that integrin beta-1 (ITGB1), collagen alpha-1 (II) chain (COL2A1), collagen alpha-1 (VII) chain (COL7A1), carbohydrate sulfotransferase 3 (CHST-3), carbohydrate sulfotransferase 4 (CHST-4), thrombospondin 2 (THBS2), bone morphogenetic protein 8A (BMP8A), tenascin-C (TNC), lysosome-associated membrane protein (LAMP2), and beta-glucuronidase (GUSB) were significantly differentially expressed. GO results suggested N-glycoproteins mainly belonged to protein metabolic process, single-multicellular and multicellular organism process, cell adhesion, biological adhesion, and multicellular organism development. KEGG and PPI results revealed that key N-glycoproteins were closely related to pathways for OA and KBD, such as phagosome, ECM-receptor interaction, lysosome, focal adhesion, protein digestion, and absorption. These results reflected glycoprotein expression for OA and KBD in the process of ECM degradation, material transport, cell-cell or cell-ECM interaction, and information transduction. These key significantly differentially expressed N-glycoproteins and pathways lead to the degeneration and degradation of the cartilage of OA and KBD mainly by disrupting the synthesis and catabolism of basic components of ECM and chondrocytes and interfering with the transfer of material or information. The key N-glycoproteins or pathways in this research are potential targets for pathological mechanisms and therapies of OA and KBD.
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Affiliation(s)
- Jing Han
- Department of Occupational and Environmental Health, School of Public Health, Health Science Center, Xi’an Jiaotong University, Xi’an 710061, China
- Key Laboratory of Environment and Genes Related to Diseases, School of Public Health, Health Science Center, Xi’an Jiaotong University, Xi’an 710061, China
- Correspondence: (J.H.); (M.J.L.)
| | - Huan Deng
- Department of Occupational and Environmental Health, School of Public Health, Health Science Center, Xi’an Jiaotong University, Xi’an 710061, China
- Key Laboratory of Environment and Genes Related to Diseases, School of Public Health, Health Science Center, Xi’an Jiaotong University, Xi’an 710061, China
| | - Yizhen Lyu
- Department of Occupational and Environmental Health, School of Public Health, Health Science Center, Xi’an Jiaotong University, Xi’an 710061, China
- Key Laboratory of Environment and Genes Related to Diseases, School of Public Health, Health Science Center, Xi’an Jiaotong University, Xi’an 710061, China
| | - Xiang Xiao
- Department of Occupational and Environmental Health, School of Public Health, Health Science Center, Xi’an Jiaotong University, Xi’an 710061, China
- Key Laboratory of Environment and Genes Related to Diseases, School of Public Health, Health Science Center, Xi’an Jiaotong University, Xi’an 710061, China
| | - Yan Zhao
- Department of Occupational and Environmental Health, School of Public Health, Health Science Center, Xi’an Jiaotong University, Xi’an 710061, China
- Key Laboratory of Environment and Genes Related to Diseases, School of Public Health, Health Science Center, Xi’an Jiaotong University, Xi’an 710061, China
| | - Jiaxin Liu
- Department of Occupational and Environmental Health, School of Public Health, Health Science Center, Xi’an Jiaotong University, Xi’an 710061, China
- Key Laboratory of Environment and Genes Related to Diseases, School of Public Health, Health Science Center, Xi’an Jiaotong University, Xi’an 710061, China
| | - Ziwei Guo
- Department of Occupational and Environmental Health, School of Public Health, Health Science Center, Xi’an Jiaotong University, Xi’an 710061, China
- Key Laboratory of Environment and Genes Related to Diseases, School of Public Health, Health Science Center, Xi’an Jiaotong University, Xi’an 710061, China
| | - Xuan Liu
- Department of Occupational and Environmental Health, School of Public Health, Health Science Center, Xi’an Jiaotong University, Xi’an 710061, China
- Key Laboratory of Environment and Genes Related to Diseases, School of Public Health, Health Science Center, Xi’an Jiaotong University, Xi’an 710061, China
| | - Lichun Qiao
- Department of Occupational and Environmental Health, School of Public Health, Health Science Center, Xi’an Jiaotong University, Xi’an 710061, China
- Key Laboratory of Environment and Genes Related to Diseases, School of Public Health, Health Science Center, Xi’an Jiaotong University, Xi’an 710061, China
| | - Hang Gao
- Laboratory of Resource Biology and Biotechnology in Western China (Ministry of Education), Provincial Key Laboratory of Biotechnology, College of Life Sciences, Northwest University, Xi’an 710069, China
| | - Mikko Juhani Lammi
- Department of Occupational and Environmental Health, School of Public Health, Health Science Center, Xi’an Jiaotong University, Xi’an 710061, China
- Department of Integrative Medical Biology, Umeå University, 90187 Umeå, Sweden
- Correspondence: (J.H.); (M.J.L.)
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16
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Abstract
Here, we describe an in vivo model in which antisense oligonucleotides were preclinically evaluated in reconstituted patient and healthy control skin. The aim was to investigate the effect of antisense oligonucleotides upon local or systemic administration. This allows for clinically relevant evaluation of antisense oligonucleotides in an in vivo setting. In this model, primary human keratinocytes and fibroblasts were placed into silicone grafting chambers, implanted onto the back of athymic nude mice. After sufficient cells were expanded, within a few weeks, human skin grafts were generated with a high success rate. These mice bearing grafts were subsequently treated with antisense oligonucleotides targeting exon 105 of the COL7A1 gene which encodes type VII collagen. Patients completely lacking expression of type VII collagen develop severe blistering of skin and mucosa, i.e., recessive dystrophic epidermolysis bullosa. In this chapter, we describe the in vivo model used for the preclinical evaluation of antisense oligonucleotides as therapeutic approach for recessive dystrophic epidermolysis bullosa.
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Affiliation(s)
- Jeroen Bremer
- Department of Genetics, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands.
- Department of Dermatology, Center for Blistering Diseases, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands.
| | - Peter C van den Akker
- Department of Genetics, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands
- Department of Dermatology, Center for Blistering Diseases, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands
- Division of Biological Chemistry and Drug Discovery, University of Dundee School of Life Sciences, Dundee, UK
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17
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Tartaglia G, Cao Q, Padron ZM, South AP. Impaired Wound Healing, Fibrosis, and Cancer: The Paradigm of Recessive Dystrophic Epidermolysis Bullosa. Int J Mol Sci 2021; 22:5104. [PMID: 34065916 PMCID: PMC8151646 DOI: 10.3390/ijms22105104] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2021] [Revised: 05/07/2021] [Accepted: 05/10/2021] [Indexed: 02/06/2023] Open
Abstract
Recessive Dystrophic Epidermolysis Bullosa (RDEB) is a devastating skin blistering disease caused by mutations in the gene encoding type VII collagen (C7), leading to epidermal fragility, trauma-induced blistering, and long term, hard-to-heal wounds. Fibrosis develops rapidly in RDEB skin and contributes to both chronic wounds, which emerge after cycles of repetitive wound and scar formation, and squamous cell carcinoma-the single biggest cause of death in this patient group. The molecular pathways disrupted in a broad spectrum of fibrotic disease are also disrupted in RDEB, and squamous cell carcinomas arising in RDEB are thus far molecularly indistinct from other sub-types of aggressive squamous cell carcinoma (SCC). Collectively these data demonstrate RDEB is a model for understanding the molecular basis of both fibrosis and rapidly developing aggressive cancer. A number of studies have shown that RDEB pathogenesis is driven by a radical change in extracellular matrix (ECM) composition and increased transforming growth factor-beta (TGFβ) signaling that is a direct result of C7 loss-of-function in dermal fibroblasts. However, the exact mechanism of how C7 loss results in extensive fibrosis is unclear, particularly how TGFβ signaling is activated and then sustained through complex networks of cell-cell interaction not limited to the traditional fibrotic protagonist, the dermal fibroblast. Continued study of this rare disease will likely yield paradigms relevant to more common pathologies.
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Affiliation(s)
- Grace Tartaglia
- Department of Dermatology and Cutaneous Biology, Thomas Jefferson University, 233 S. 10th Street, BLSB 406, Philadelphia, PA 19107, USA; (G.T.); (Q.C.); (Z.M.P.)
| | - Qingqing Cao
- Department of Dermatology and Cutaneous Biology, Thomas Jefferson University, 233 S. 10th Street, BLSB 406, Philadelphia, PA 19107, USA; (G.T.); (Q.C.); (Z.M.P.)
| | - Zachary M. Padron
- Department of Dermatology and Cutaneous Biology, Thomas Jefferson University, 233 S. 10th Street, BLSB 406, Philadelphia, PA 19107, USA; (G.T.); (Q.C.); (Z.M.P.)
- The Joan and Joel Rosenbloom Research Center for Fibrotic Diseases, Thomas Jefferson University, Philadelphia, PA 19107, USA
| | - Andrew P. South
- Department of Dermatology and Cutaneous Biology, Thomas Jefferson University, 233 S. 10th Street, BLSB 406, Philadelphia, PA 19107, USA; (G.T.); (Q.C.); (Z.M.P.)
- The Joan and Joel Rosenbloom Research Center for Fibrotic Diseases, Thomas Jefferson University, Philadelphia, PA 19107, USA
- Sidney Kimmel Cancer Center, Thomas Jefferson University, Philadelphia, PA 19107, USA
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18
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Itoh M, Kawagoe S, Tamai K, Nakagawa H, Asahina A, Okano HJ. Footprint-free gene mutation correction in induced pluripotent stem cell (iPSC) derived from recessive dystrophic epidermolysis bullosa (RDEB) using the CRISPR/Cas9 and piggyBac transposon system. J Dermatol Sci 2020; 98:163-172. [PMID: 32376152 DOI: 10.1016/j.jdermsci.2020.04.004] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2020] [Revised: 04/07/2020] [Accepted: 04/13/2020] [Indexed: 02/02/2023]
Abstract
BACKGROUND Recessive dystrophic epidermolysis bullosa (RDEB) is a monogenic skin blistering disorder caused by mutations in the type VII collagen gene. A combination of biological technologies, including induced pluripotent stem cells (iPSCs) and several gene-editing tools, allows us to develop gene and cell therapies for such inherited diseases. However, the methodologies for gene and cell therapies must be continuously innovated for safe clinical use. OBJECTIVE In this study, we used the clustered regularly interspaced short palindromic repeats (CRISPR)/Cas9 technology to correct the pathogenic mutation in RDEB-specific iPSCs, and the piggyBac transposon system so that no residual gene fragments remained in the genome of iPSCs after correcting the mutation. METHODS For homologous recombination (HR)-based gene editing using CRISPR/Cas9, we designed guide RNA and template DNA including homologous sequences with drug-mediated selection cassette flanked by inverted repeat sequences of the transposon. HR reaction using CRISPR/Cas9 was induced in RDEB-specific iPSCs, and mutation-corrected iPSCs (MC-iPSCs) was obtained. Consequently, the selection cassette in the genome of MC-iPSCs was removed by transposase expression. RESULTS After CRISPR/Cas9-induced gene editing, we confirmed that the pathogenic mutation in RDEB-specific iPSCs was properly corrected. In addition, MC-iPSCs had no genetic footprint after removing the selection cassette by transposon system, and maintained their "stemness". When differentiating MC-iPSCs into keratinocytes, the expression of type VII collagen was restored. CONCLUSIONS Our study demonstrated one of the safer approaches to establish gene and cell therapies for skin hereditary disorders for future clinical use.
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Affiliation(s)
- Munenari Itoh
- Department of Dermatology, The Jikei University School of Medicine, Tokyo, Japan.
| | - Shiho Kawagoe
- Department of Dermatology, The Jikei University School of Medicine, Tokyo, Japan
| | - Katsuto Tamai
- Department of Stem Cell Therapy Science, Graduate School of Medicine, Osaka University, Osaka, Japan
| | - Hidemi Nakagawa
- Department of Dermatology, The Jikei University School of Medicine, Tokyo, Japan
| | - Akihiko Asahina
- Department of Dermatology, The Jikei University School of Medicine, Tokyo, Japan
| | - Hirotaka James Okano
- Division of Regenerative Medicine, The Jikei University School of Medicine, Tokyo, Japan
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19
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Abstract
Epidermolysis bullosa is a family of diseases characterized by blistering and fragility of the skin in response to mechanical trauma. Advances in our understanding of epidermolysis bullosa pathophysiology have provided the necessary foundation for the first clinical trials of gene therapy for junctional and dystrophic epidermolysis bullosa. These therapies show that gene therapy is both safe and effective, with the potential to correct the molecular and clinical phenotype of patients with epidermolysis bullosa. Improvements in gene delivery and in preventing immune reactions will be among the challenges that lie ahead during further therapeutic development.
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Affiliation(s)
- M Peter Marinkovich
- Department of Dermatology, Program in Epithelial Biology, Stanford University School of Medicine, Stanford, California, USA; Department of Dermatology, Palo Alto Veterans Affairs Medical Center, Palo Alto, California, USA.
| | - Jean Y Tang
- Department of Dermatology, Program in Epithelial Biology, Stanford University School of Medicine, Stanford, California, USA
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20
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Abstract
The size and relatively high GC content of cDNAs are challenges for efficient targeted engineering of large collagens. There are both basic biological and therapeutic interests in the ability to modify collagens, as this would allow for studies precisely describing interactions of collagens with specific interaction partners, addressing consequences of individual disease-causing mutations, and assessing therapeutic applicability of precision medicine approaches. Using collagen VII as an example, we will here describe a strategy for rapid and simple modification of cDNAs encoding large collagens. The method is flexible and can be used for the creation of point mutations, small or large deletions, and insertion of DNA.
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Affiliation(s)
- Olivier Bornert
- Department of Dermatology, Faculty of Medicine, Medical Center, University of Freiburg, Freiburg, Germany
| | - Alexander Nyström
- Department of Dermatology, Faculty of Medicine, Medical Center, University of Freiburg, Freiburg, Germany.
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21
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Has C, Nyström A, Saeidian AH, Bruckner-Tuderman L, Uitto J. Epidermolysis bullosa: Molecular pathology of connective tissue components in the cutaneous basement membrane zone. Matrix Biol 2018; 71-72:313-329. [PMID: 29627521 DOI: 10.1016/j.matbio.2018.04.001] [Citation(s) in RCA: 68] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2018] [Revised: 04/02/2018] [Accepted: 04/03/2018] [Indexed: 01/13/2023]
Abstract
Epidermolysis bullosa (EB), a group of heritable skin fragility disorders, is characterized by blistering, erosions and chronic ulcers in the skin and mucous membranes. In some forms, the blistering phenotype is associated with extensive mutilating scarring and development of aggressive squamous cell carcinomas. The skin findings can be associated with extracutaneous manifestations in the ocular as well as gastrointestinal and vesico-urinary tracts. The phenotypic heterogeneity reflects the presence of mutations in as many as 20 different genes expressed in the cutaneous basement membrane zone, and the types and combinations of the mutations and their consequences at the mRNA and protein levels contribute to the spectrum of severity encountered in different subtypes of EB. This overview highlights the molecular genetics of EB based on mutations in the genes encoding type VII and XVII collagens as well as laminin-332. The mutations identified in these protein components of the extracellular matrix attest to their critical importance in providing stability to the cutaneous basement membrane zone, with implications for heritable and acquired diseases.
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Affiliation(s)
- Cristina Has
- Department of Dermatology, Medical Center - University of Freiburg, Faculty of Medicine, University of Freiburg, Germany
| | - Alexander Nyström
- Department of Dermatology, Medical Center - University of Freiburg, Faculty of Medicine, University of Freiburg, Germany
| | - Amir Hossein Saeidian
- Department of Dermatology and Cutaneous Biology, Sidney Kimmel Medical College, Jefferson Institute of Molecular Medicine, Thomas Jefferson University, Philadelphia, PA, USA
| | - Leena Bruckner-Tuderman
- Department of Dermatology, Medical Center - University of Freiburg, Faculty of Medicine, University of Freiburg, Germany
| | - Jouni Uitto
- Department of Dermatology and Cutaneous Biology, Sidney Kimmel Medical College, Jefferson Institute of Molecular Medicine, Thomas Jefferson University, Philadelphia, PA, USA.
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22
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Jie J, Yang J, He H, Zheng J, Wang W, Zhang L, Li Z, Chen J, Vimalin Jeyalatha M, Dong N, Wu H, Liu Z, Li W. Tissue remodeling after ocular surface reconstruction with denuded amniotic membrane. Sci Rep 2018; 8:6400. [PMID: 29686390 PMCID: PMC5913251 DOI: 10.1038/s41598-018-24694-4] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2018] [Accepted: 04/05/2018] [Indexed: 12/16/2022] Open
Abstract
Amniotic membrane (AM) has been widely used as a temporary or permanent graft in the treatment of various ocular surface diseases. In this study, we compared the epithelial wound healing and tissue remodeling after ocular surface reconstruction with intact amniotic membrane (iAM) or denuded amniotic membrane (dAM). Partial limbal and bulbar conjunctival removal was performed on New Zealand rabbits followed by transplantation of cryo-preserved human iAM or dAM. In vivo observation showed that the epithelial ingrowth was faster on dAM compared to iAM after AM transplantation. Histological observation showed prominent epithelial stratification and increased goblet cell number on dAM after 2 weeks of follow up. Collagen VII degraded in dAM within 2 weeks, while remained in iAM even after 3 weeks. The number of macrophages and α-SMA positive cells in the stroma of remodelized conjunctiva in the dAM transplantation group was considerably less. In conclusion, dAM facilitates epithelial repopulation and goblet cell differentiation, further reduces inflammation and scar formation during conjunctival and corneal limbal reconstruction.
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Affiliation(s)
- Jing Jie
- Eye Institute of Xiamen University, Xiamen, Fujian, China
- Medical College of Xiamen University, Xiamen, Fujian, China
- Fujian Provincial Key Laboratory of Ophthalmology and Visual Science, Xiamen, Fujian, China
- Guilin Women and Children's Hospital, Guilin, Guangxi, China
| | - Jie Yang
- Eye Institute of Xiamen University, Xiamen, Fujian, China
- Medical College of Xiamen University, Xiamen, Fujian, China
- Fujian Provincial Key Laboratory of Ophthalmology and Visual Science, Xiamen, Fujian, China
- Zhengzhou Second Hospital, Zhengzhou, Henan, China
| | - Hui He
- Eye Institute of Xiamen University, Xiamen, Fujian, China
- Medical College of Xiamen University, Xiamen, Fujian, China
- Fujian Provincial Key Laboratory of Ophthalmology and Visual Science, Xiamen, Fujian, China
| | - Jianlan Zheng
- Xiamen University affiliated Chenggong Hospital, Xiamen, Fujian, China
| | - Wenyan Wang
- Xiamen University affiliated Chenggong Hospital, Xiamen, Fujian, China
| | - Liying Zhang
- Eye Institute of Xiamen University, Xiamen, Fujian, China
- Medical College of Xiamen University, Xiamen, Fujian, China
- Fujian Provincial Key Laboratory of Ophthalmology and Visual Science, Xiamen, Fujian, China
- Xiamen University affiliated Xiamen Eye Center, Xiamen, Fujian, China
| | - Zhiyuan Li
- Eye Institute of Xiamen University, Xiamen, Fujian, China
- Medical College of Xiamen University, Xiamen, Fujian, China
- Fujian Provincial Key Laboratory of Ophthalmology and Visual Science, Xiamen, Fujian, China
| | - Jingyao Chen
- Eye Institute of Xiamen University, Xiamen, Fujian, China
- Medical College of Xiamen University, Xiamen, Fujian, China
- Fujian Provincial Key Laboratory of Ophthalmology and Visual Science, Xiamen, Fujian, China
| | - M Vimalin Jeyalatha
- Eye Institute of Xiamen University, Xiamen, Fujian, China
- Medical College of Xiamen University, Xiamen, Fujian, China
- Fujian Provincial Key Laboratory of Ophthalmology and Visual Science, Xiamen, Fujian, China
| | - Nuo Dong
- Xiamen University affiliated Xiamen Eye Center, Xiamen, Fujian, China
| | - Huping Wu
- Xiamen University affiliated Xiamen Eye Center, Xiamen, Fujian, China
| | - Zuguo Liu
- Eye Institute of Xiamen University, Xiamen, Fujian, China
- Medical College of Xiamen University, Xiamen, Fujian, China
- Fujian Provincial Key Laboratory of Ophthalmology and Visual Science, Xiamen, Fujian, China
- Xiamen University affiliated Xiamen Eye Center, Xiamen, Fujian, China
| | - Wei Li
- Eye Institute of Xiamen University, Xiamen, Fujian, China.
- Medical College of Xiamen University, Xiamen, Fujian, China.
- Fujian Provincial Key Laboratory of Ophthalmology and Visual Science, Xiamen, Fujian, China.
- The Affiliated Xiang'an Hospital of Xiamen University, Xiamen, Fujian, China.
- Xiamen University affiliated Xiamen Eye Center, Xiamen, Fujian, China.
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Maeda Y, Hasegawa T, Wada A, Fukai T, Iida H, Sakamoto A, Ikeda S. Adipose-derived stem cells express higher levels of type VII collagen under specific culture conditions. Arch Dermatol Res 2017; 309:843-849. [PMID: 28940088 DOI: 10.1007/s00403-017-1781-9] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2017] [Revised: 09/04/2017] [Accepted: 09/13/2017] [Indexed: 11/26/2022]
Abstract
Type VII collagen (Col7) is a major component of the anchoring fibrils at the dermoepidermal junction. Adipose-derived stem cells (ADSCs) are a cell population highly useful in regenerative medicine because of their ease of isolation and their potential for multilineage differentiation. Based on the observations that K14 was expressed in undifferentiated ADSCs and the expression was downregulated after differentiation into adipocytes, we speculated that ADSCs are keratinocyte stem/progenitor cells. ADSCs were co-cultured with fibroblasts on type IV collagen in a medium containing all-trans retinoic acid and bone morphogenetic protein 4. At day 14 of culture in keratinocyte serum-free medium, the cells were harvested and subjected to immunofluorescence, flow cytometry, real-time PCR, and western blotting. Approximately, 45% of ADSCs were immunostained positively for anti-human cytokeratin 10, and approximately 80% were stained positively for Col7. Flow cytometry, real-time PCR, and western blotting also confirmed that differentiated ADSCs expressed higher levels of Col7. These findings support the therapeutic potential of ADSCs, not only for wound healing, but also for the correction of Col7 deficiencies.
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Affiliation(s)
- Yuichiro Maeda
- Department of Dermatology and Allergology, Juntendo University Graduate School of Medicine, 2-1-1 Hongo, Bunkyo-ku, Tokyo, 113-8421, Japan
| | - Toshio Hasegawa
- Department of Dermatology and Allergology, Juntendo University Graduate School of Medicine, 2-1-1 Hongo, Bunkyo-ku, Tokyo, 113-8421, Japan.
| | - Akino Wada
- Department of Dermatology and Allergology, Juntendo University Graduate School of Medicine, 2-1-1 Hongo, Bunkyo-ku, Tokyo, 113-8421, Japan
| | - Tatsuo Fukai
- Department of Dermatology and Allergology, Juntendo University Graduate School of Medicine, 2-1-1 Hongo, Bunkyo-ku, Tokyo, 113-8421, Japan
| | - Hideo Iida
- Department of Dermatology and Allergology, Juntendo University Graduate School of Medicine, 2-1-1 Hongo, Bunkyo-ku, Tokyo, 113-8421, Japan
| | - Atsushi Sakamoto
- Department of Dermatology and Allergology, Juntendo University Graduate School of Medicine, 2-1-1 Hongo, Bunkyo-ku, Tokyo, 113-8421, Japan
| | - Shigaku Ikeda
- Department of Dermatology and Allergology, Juntendo University Graduate School of Medicine, 2-1-1 Hongo, Bunkyo-ku, Tokyo, 113-8421, Japan
- Atopy (Allergy) Research Center, Juntendo University Graduate School of Medicine, Tokyo, Japan
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24
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Siprashvili Z, Nguyen NT, Gorell ES, Loutit K, Khuu P, Furukawa LK, Lorenz HP, Leung TH, Keene DR, Rieger KE, Khavari P, Lane AT, Tang JY, Marinkovich MP. Safety and Wound Outcomes Following Genetically Corrected Autologous Epidermal Grafts in Patients With Recessive Dystrophic Epidermolysis Bullosa. JAMA 2016; 316:1808-1817. [PMID: 27802546 DOI: 10.1001/jama.2016.15588] [Citation(s) in RCA: 139] [Impact Index Per Article: 17.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
Abstract
IMPORTANCE Recessive dystrophic epidermolysis bullosa (RDEB) is a devastating, often fatal, inherited blistering disorder caused by mutations in the COL7A1 gene encoding type VII collagen. Support and palliation are the only current therapies. OBJECTIVE To evaluate the safety and wound outcomes following genetically corrected autologous epidermal grafts in patients with RDEB. DESIGN, SETTING, AND PARTICIPANTS Single-center phase 1 clinical trial conducted in the United States of 4 patients with severe RDEB with a measured area of wounds suitable for grafting of at least 100 cm2. Patients with undetectable type VII collagen keratinocyte expression were excluded. INTERVENTIONS Autologous keratinocytes isolated from biopsy samples collected from 4 patients with RDEB were transduced with good manufacturing practice-grade retrovirus carrying full-length human COL7A1 and assembled into epidermal sheet grafts. Type VII collagen gene-corrected grafts (approximately 35 cm2) were transplanted onto 6 wounds in each of the patients (n = 24 grafts). MAIN OUTCOMES AND MEASURES The primary safety outcomes were recombination competent retrovirus, cancer, and autoimmune reaction. Molecular correction was assessed as type VII collagen expression measured by immunofluorescence and immunoelectron microscopy. Wound healing was assessed using serial photographs taken at 3, 6, and 12 months after grafting. RESULTS The 4 patients (mean age, 23 years [range, 18-32 years]) were all male with an estimated body surface area affected with RDEB of 4% to 30%. All 24 grafts were well tolerated without serious adverse events. Type VII collagen expression at the dermal-epidermal junction was demonstrated on the graft sites by immunofluorescence microscopy in 9 of 10 biopsy samples (90%) at 3 months, in 8 of 12 samples (66%) at 6 months, and in 5 of 12 samples (42%) at 12 months, including correct type VII collagen localization to anchoring fibrils. Wounds with recombinant type VII collagen graft sites displayed 75% or greater healing at 3 months (21 intact graft sites of 24 wound sites; 87%), 6 months (16/24; 67%), and 12 months (12/24; 50%) compared with baseline wound sites. CONCLUSIONS AND RELEVANCE In this preliminary study of 4 patients with RDEB, there was wound healing in some type VII collagen gene-corrected grafts, but the response was variable among patients and among grafted sites and generally declined over 1 year. Long-term follow-up is necessary for these patients, and controlled trials are needed with a broader range of patients to better understand the potential long-term efficacy of genetically corrected autologous epidermal grafts. TRIAL REGISTRATION clinicaltrials.gov Identifier: NCT01263379.
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Affiliation(s)
- Zurab Siprashvili
- Department of Dermatology, School of Medicine, Stanford University, Stanford, California
| | - Ngon T Nguyen
- Department of Dermatology, School of Medicine, Stanford University, Stanford, California
| | - Emily S Gorell
- Department of Dermatology, School of Medicine, Stanford University, Stanford, California
| | - Kylie Loutit
- Department of Dermatology, School of Medicine, Stanford University, Stanford, California
| | - Phuong Khuu
- Department of Dermatology, School of Medicine, Stanford University, Stanford, California
| | - Louise K Furukawa
- Lucile Packard Children's Hospital, Stanford University, Stanford, California
| | - H Peter Lorenz
- Lucile Packard Children's Hospital, Stanford University, Stanford, California
| | - Thomas H Leung
- Department of Dermatology, School of Medicine, Stanford University, Stanford, California3Now with Department of Dermatology, University of Pennsylvania, Philadelphia
| | | | - Kerri E Rieger
- Department of Dermatology, School of Medicine, Stanford University, Stanford, California
| | - Paul Khavari
- Department of Dermatology, School of Medicine, Stanford University, Stanford, California5Veterans Affairs Medical Center, Palo Alto, California
| | - Alfred T Lane
- Department of Dermatology, School of Medicine, Stanford University, Stanford, California
| | - Jean Y Tang
- Department of Dermatology, School of Medicine, Stanford University, Stanford, California
| | - M Peter Marinkovich
- Department of Dermatology, School of Medicine, Stanford University, Stanford, California5Veterans Affairs Medical Center, Palo Alto, California
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25
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Martins VL, Caley MP, Moore K, Szentpetery Z, Marsh ST, Murrell DF, Kim MH, Avari M, McGrath JA, Cerio R, Kivisaari A, Kähäri VM, Hodivala-Dilke K, Brennan CH, Chen M, Marshall JF, O'Toole EA. Suppression of TGFβ and Angiogenesis by Type VII Collagen in Cutaneous SCC. J Natl Cancer Inst 2016; 108:djv293. [PMID: 26476432 DOI: 10.1093/jnci/djv293] [Citation(s) in RCA: 52] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2015] [Accepted: 09/22/2015] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND Individuals with severe generalized recessive dystrophic epidermolysis bullosa (RDEB), an inherited blistering disorder caused by mutations in the COL7A1 gene, develop unexplained aggressive squamous cell carcinomas (SCC). Here we report that loss of type VII collagen (Col7) in SCC results in increased TGFβ signaling and angiogenesis in vitro and in vivo. METHODS Stable knockdown (KD) of Col7 was established using shRNA, and cells were used in a mouse xenograft model. Angiogenesis was assessed by immunohistochemistry, endothelial tube-forming assays, and proteome arrays. Mouse and zebrafish models were used to examine the effect of recombinant Col7 on angiogenesis. Findings were confirmed in anonymized, archival human tissue: RDEB SCC tumors, non-EB SCC tumors, RDEB skin, normal skin; and two human RDEB SCC cell lines. The TGFβ pathway was examined using immunoblotting, immunohistochemistry, biochemical inhibition, and siRNA. All statistical tests were two-sided. RESULTS Increased numbers of cross-cut blood vessels were observed in Col7 KD compared with control xenografts (n = 4 to 7 per group) and in RDEB tumors (n = 21) compared with sporadic SCC (n = 24, P < .001). Recombinant human Col7 reversed the increased SCC angiogenesis in Col7 KD xenografts in vivo (n = 7 per group, P = .04). Blocking the interaction between α2β1 integrin and Col7 increased TGFB1 mRNA expression 1.8-fold and p-Smad2 levels two-fold. Increased TGFβ signaling and VEGF expression were observed in Col7 KD xenografts (n = 4) compared with control (n = 4) and RDEB tumors (TGFβ markers, n = 6; VEGF, n = 17) compared with sporadic SCC (TGFβ markers, n = 6; VEGF, n = 21). Inhibition of TGFβ receptor signaling using siRNA resulted in decreased endothelial cell tube formation (n = 9 per group, mean tubes per well siC = 63.6, SD = 17.1; mean tubes per well siTβRII = 29.7, SD = 6.1, P = .02). CONCLUSIONS Type VII collagen suppresses TGFβ signaling and angiogenesis in cutaneous SCC. Patients with RDEB SCC may benefit from anti-angiogenic therapy.
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Affiliation(s)
- V L Martins
- Centre for Cell Biology and Cutaneous Research, Blizard Institute (VLM, MPC, ZS, STM, MA, RC, EOT), Barts Cancer Institute (KM, KHD, JFM), Barts and the London School of Medicine and Dentistry and School of Biological and Chemical Sciences (CHB), Queen Mary University of London, London, UK; Department of Dermatology, St George Hospital, University of NSW, Sydney, NSW, Australia (DFM, MHK); St John's Institute of Dermatology, Kings College London (Guys Campus), London, UK (JAM); Department of Dermatology and MediCity Research Laboratory, University of Turku, and Turku University Hospital, Turku, Finland (AK, VMK); Department of Dermatology, University of Southern California, Los Angeles, CA (MC)
| | - M P Caley
- Centre for Cell Biology and Cutaneous Research, Blizard Institute (VLM, MPC, ZS, STM, MA, RC, EOT), Barts Cancer Institute (KM, KHD, JFM), Barts and the London School of Medicine and Dentistry and School of Biological and Chemical Sciences (CHB), Queen Mary University of London, London, UK; Department of Dermatology, St George Hospital, University of NSW, Sydney, NSW, Australia (DFM, MHK); St John's Institute of Dermatology, Kings College London (Guys Campus), London, UK (JAM); Department of Dermatology and MediCity Research Laboratory, University of Turku, and Turku University Hospital, Turku, Finland (AK, VMK); Department of Dermatology, University of Southern California, Los Angeles, CA (MC)
| | - K Moore
- Centre for Cell Biology and Cutaneous Research, Blizard Institute (VLM, MPC, ZS, STM, MA, RC, EOT), Barts Cancer Institute (KM, KHD, JFM), Barts and the London School of Medicine and Dentistry and School of Biological and Chemical Sciences (CHB), Queen Mary University of London, London, UK; Department of Dermatology, St George Hospital, University of NSW, Sydney, NSW, Australia (DFM, MHK); St John's Institute of Dermatology, Kings College London (Guys Campus), London, UK (JAM); Department of Dermatology and MediCity Research Laboratory, University of Turku, and Turku University Hospital, Turku, Finland (AK, VMK); Department of Dermatology, University of Southern California, Los Angeles, CA (MC)
| | - Z Szentpetery
- Centre for Cell Biology and Cutaneous Research, Blizard Institute (VLM, MPC, ZS, STM, MA, RC, EOT), Barts Cancer Institute (KM, KHD, JFM), Barts and the London School of Medicine and Dentistry and School of Biological and Chemical Sciences (CHB), Queen Mary University of London, London, UK; Department of Dermatology, St George Hospital, University of NSW, Sydney, NSW, Australia (DFM, MHK); St John's Institute of Dermatology, Kings College London (Guys Campus), London, UK (JAM); Department of Dermatology and MediCity Research Laboratory, University of Turku, and Turku University Hospital, Turku, Finland (AK, VMK); Department of Dermatology, University of Southern California, Los Angeles, CA (MC)
| | - S T Marsh
- Centre for Cell Biology and Cutaneous Research, Blizard Institute (VLM, MPC, ZS, STM, MA, RC, EOT), Barts Cancer Institute (KM, KHD, JFM), Barts and the London School of Medicine and Dentistry and School of Biological and Chemical Sciences (CHB), Queen Mary University of London, London, UK; Department of Dermatology, St George Hospital, University of NSW, Sydney, NSW, Australia (DFM, MHK); St John's Institute of Dermatology, Kings College London (Guys Campus), London, UK (JAM); Department of Dermatology and MediCity Research Laboratory, University of Turku, and Turku University Hospital, Turku, Finland (AK, VMK); Department of Dermatology, University of Southern California, Los Angeles, CA (MC)
| | - D F Murrell
- Centre for Cell Biology and Cutaneous Research, Blizard Institute (VLM, MPC, ZS, STM, MA, RC, EOT), Barts Cancer Institute (KM, KHD, JFM), Barts and the London School of Medicine and Dentistry and School of Biological and Chemical Sciences (CHB), Queen Mary University of London, London, UK; Department of Dermatology, St George Hospital, University of NSW, Sydney, NSW, Australia (DFM, MHK); St John's Institute of Dermatology, Kings College London (Guys Campus), London, UK (JAM); Department of Dermatology and MediCity Research Laboratory, University of Turku, and Turku University Hospital, Turku, Finland (AK, VMK); Department of Dermatology, University of Southern California, Los Angeles, CA (MC)
| | - M H Kim
- Centre for Cell Biology and Cutaneous Research, Blizard Institute (VLM, MPC, ZS, STM, MA, RC, EOT), Barts Cancer Institute (KM, KHD, JFM), Barts and the London School of Medicine and Dentistry and School of Biological and Chemical Sciences (CHB), Queen Mary University of London, London, UK; Department of Dermatology, St George Hospital, University of NSW, Sydney, NSW, Australia (DFM, MHK); St John's Institute of Dermatology, Kings College London (Guys Campus), London, UK (JAM); Department of Dermatology and MediCity Research Laboratory, University of Turku, and Turku University Hospital, Turku, Finland (AK, VMK); Department of Dermatology, University of Southern California, Los Angeles, CA (MC)
| | - M Avari
- Centre for Cell Biology and Cutaneous Research, Blizard Institute (VLM, MPC, ZS, STM, MA, RC, EOT), Barts Cancer Institute (KM, KHD, JFM), Barts and the London School of Medicine and Dentistry and School of Biological and Chemical Sciences (CHB), Queen Mary University of London, London, UK; Department of Dermatology, St George Hospital, University of NSW, Sydney, NSW, Australia (DFM, MHK); St John's Institute of Dermatology, Kings College London (Guys Campus), London, UK (JAM); Department of Dermatology and MediCity Research Laboratory, University of Turku, and Turku University Hospital, Turku, Finland (AK, VMK); Department of Dermatology, University of Southern California, Los Angeles, CA (MC)
| | - J A McGrath
- Centre for Cell Biology and Cutaneous Research, Blizard Institute (VLM, MPC, ZS, STM, MA, RC, EOT), Barts Cancer Institute (KM, KHD, JFM), Barts and the London School of Medicine and Dentistry and School of Biological and Chemical Sciences (CHB), Queen Mary University of London, London, UK; Department of Dermatology, St George Hospital, University of NSW, Sydney, NSW, Australia (DFM, MHK); St John's Institute of Dermatology, Kings College London (Guys Campus), London, UK (JAM); Department of Dermatology and MediCity Research Laboratory, University of Turku, and Turku University Hospital, Turku, Finland (AK, VMK); Department of Dermatology, University of Southern California, Los Angeles, CA (MC)
| | - R Cerio
- Centre for Cell Biology and Cutaneous Research, Blizard Institute (VLM, MPC, ZS, STM, MA, RC, EOT), Barts Cancer Institute (KM, KHD, JFM), Barts and the London School of Medicine and Dentistry and School of Biological and Chemical Sciences (CHB), Queen Mary University of London, London, UK; Department of Dermatology, St George Hospital, University of NSW, Sydney, NSW, Australia (DFM, MHK); St John's Institute of Dermatology, Kings College London (Guys Campus), London, UK (JAM); Department of Dermatology and MediCity Research Laboratory, University of Turku, and Turku University Hospital, Turku, Finland (AK, VMK); Department of Dermatology, University of Southern California, Los Angeles, CA (MC)
| | - A Kivisaari
- Centre for Cell Biology and Cutaneous Research, Blizard Institute (VLM, MPC, ZS, STM, MA, RC, EOT), Barts Cancer Institute (KM, KHD, JFM), Barts and the London School of Medicine and Dentistry and School of Biological and Chemical Sciences (CHB), Queen Mary University of London, London, UK; Department of Dermatology, St George Hospital, University of NSW, Sydney, NSW, Australia (DFM, MHK); St John's Institute of Dermatology, Kings College London (Guys Campus), London, UK (JAM); Department of Dermatology and MediCity Research Laboratory, University of Turku, and Turku University Hospital, Turku, Finland (AK, VMK); Department of Dermatology, University of Southern California, Los Angeles, CA (MC)
| | - V M Kähäri
- Centre for Cell Biology and Cutaneous Research, Blizard Institute (VLM, MPC, ZS, STM, MA, RC, EOT), Barts Cancer Institute (KM, KHD, JFM), Barts and the London School of Medicine and Dentistry and School of Biological and Chemical Sciences (CHB), Queen Mary University of London, London, UK; Department of Dermatology, St George Hospital, University of NSW, Sydney, NSW, Australia (DFM, MHK); St John's Institute of Dermatology, Kings College London (Guys Campus), London, UK (JAM); Department of Dermatology and MediCity Research Laboratory, University of Turku, and Turku University Hospital, Turku, Finland (AK, VMK); Department of Dermatology, University of Southern California, Los Angeles, CA (MC)
| | - K Hodivala-Dilke
- Centre for Cell Biology and Cutaneous Research, Blizard Institute (VLM, MPC, ZS, STM, MA, RC, EOT), Barts Cancer Institute (KM, KHD, JFM), Barts and the London School of Medicine and Dentistry and School of Biological and Chemical Sciences (CHB), Queen Mary University of London, London, UK; Department of Dermatology, St George Hospital, University of NSW, Sydney, NSW, Australia (DFM, MHK); St John's Institute of Dermatology, Kings College London (Guys Campus), London, UK (JAM); Department of Dermatology and MediCity Research Laboratory, University of Turku, and Turku University Hospital, Turku, Finland (AK, VMK); Department of Dermatology, University of Southern California, Los Angeles, CA (MC)
| | - C H Brennan
- Centre for Cell Biology and Cutaneous Research, Blizard Institute (VLM, MPC, ZS, STM, MA, RC, EOT), Barts Cancer Institute (KM, KHD, JFM), Barts and the London School of Medicine and Dentistry and School of Biological and Chemical Sciences (CHB), Queen Mary University of London, London, UK; Department of Dermatology, St George Hospital, University of NSW, Sydney, NSW, Australia (DFM, MHK); St John's Institute of Dermatology, Kings College London (Guys Campus), London, UK (JAM); Department of Dermatology and MediCity Research Laboratory, University of Turku, and Turku University Hospital, Turku, Finland (AK, VMK); Department of Dermatology, University of Southern California, Los Angeles, CA (MC)
| | - M Chen
- Centre for Cell Biology and Cutaneous Research, Blizard Institute (VLM, MPC, ZS, STM, MA, RC, EOT), Barts Cancer Institute (KM, KHD, JFM), Barts and the London School of Medicine and Dentistry and School of Biological and Chemical Sciences (CHB), Queen Mary University of London, London, UK; Department of Dermatology, St George Hospital, University of NSW, Sydney, NSW, Australia (DFM, MHK); St John's Institute of Dermatology, Kings College London (Guys Campus), London, UK (JAM); Department of Dermatology and MediCity Research Laboratory, University of Turku, and Turku University Hospital, Turku, Finland (AK, VMK); Department of Dermatology, University of Southern California, Los Angeles, CA (MC)
| | - J F Marshall
- Centre for Cell Biology and Cutaneous Research, Blizard Institute (VLM, MPC, ZS, STM, MA, RC, EOT), Barts Cancer Institute (KM, KHD, JFM), Barts and the London School of Medicine and Dentistry and School of Biological and Chemical Sciences (CHB), Queen Mary University of London, London, UK; Department of Dermatology, St George Hospital, University of NSW, Sydney, NSW, Australia (DFM, MHK); St John's Institute of Dermatology, Kings College London (Guys Campus), London, UK (JAM); Department of Dermatology and MediCity Research Laboratory, University of Turku, and Turku University Hospital, Turku, Finland (AK, VMK); Department of Dermatology, University of Southern California, Los Angeles, CA (MC)
| | - E A O'Toole
- Centre for Cell Biology and Cutaneous Research, Blizard Institute (VLM, MPC, ZS, STM, MA, RC, EOT), Barts Cancer Institute (KM, KHD, JFM), Barts and the London School of Medicine and Dentistry and School of Biological and Chemical Sciences (CHB), Queen Mary University of London, London, UK; Department of Dermatology, St George Hospital, University of NSW, Sydney, NSW, Australia (DFM, MHK); St John's Institute of Dermatology, Kings College London (Guys Campus), London, UK (JAM); Department of Dermatology and MediCity Research Laboratory, University of Turku, and Turku University Hospital, Turku, Finland (AK, VMK); Department of Dermatology, University of Southern California, Los Angeles, CA (MC).
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Wullink B, Pas HH, Van der Worp RJ, Kuijer R, Los LI. Type VII Collagen Expression in the Human Vitreoretinal Interface, Corpora Amylacea and Inner Retinal Layers. PLoS One 2015; 10:e0145502. [PMID: 26709927 PMCID: PMC4692387 DOI: 10.1371/journal.pone.0145502] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2015] [Accepted: 12/04/2015] [Indexed: 11/18/2022] Open
Abstract
Type VII collagen, as a major component of anchoring fibrils found at basement membrane zones, is crucial in anchoring epithelial tissue layers to their underlying stroma. Recently, type VII collagen was discovered in the inner human retina by means of immunohistochemistry, while proteomic investigations demonstrated type VII collagen at the vitreoretinal interface of chicken. Because of its potential anchoring function at the vitreoretinal interface, we further assessed the presence of type VII collagen at this site. We evaluated the vitreoretinal interface of human donor eyes by means of immunohistochemistry, confocal microscopy, immunoelectron microscopy, and Western blotting. Firstly, type VII collagen was detected alongside vitreous fibers6 at the vitreoretinal interface. Because of its known anchoring function, it is likely that type VII collagen is involved in vitreoretinal attachment. Secondly, type VII collagen was found within cytoplasmic vesicles of inner retinal cells. These cells resided most frequently in the ganglion cell layer and inner plexiform layer. Thirdly, type VII collagen was found in astrocytic cytoplasmic inclusions, known as corpora amylacea. The intraretinal presence of type VII collagen was confirmed by Western blotting of homogenized retinal preparations. These data add to the understanding of vitreoretinal attachment, which is important for a better comprehension of common vitreoretinal attachment pathologies.
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Affiliation(s)
- Bart Wullink
- Department of Ophthalmology, University Medical Center Groningen, University of Groningen, Groningen, the Netherlands
- W.J. Kolff Institute, Graduate School of Medical Sciences, University of Groningen, Groningen, the Netherlands
- * E-mail:
| | - Hendri H. Pas
- Department of Dermatology, University Medical Center Groningen, University of Groningen, Groningen, the Netherlands
| | - Roelofje J. Van der Worp
- Department of Ophthalmology, University Medical Center Groningen, University of Groningen, Groningen, the Netherlands
- W.J. Kolff Institute, Graduate School of Medical Sciences, University of Groningen, Groningen, the Netherlands
- Department of Biomedical Engineering, University Medical Center Groningen, University of Groningen, Groningen, the Netherlands
| | - Roel Kuijer
- W.J. Kolff Institute, Graduate School of Medical Sciences, University of Groningen, Groningen, the Netherlands
- Department of Biomedical Engineering, University Medical Center Groningen, University of Groningen, Groningen, the Netherlands
| | - Leonoor I. Los
- Department of Ophthalmology, University Medical Center Groningen, University of Groningen, Groningen, the Netherlands
- W.J. Kolff Institute, Graduate School of Medical Sciences, University of Groningen, Groningen, the Netherlands
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27
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Watt SA, Dayal JHS, Wright S, Riddle M, Pourreyron C, McMillan JR, Kimble RM, Prisco M, Gartner U, Warbrick E, McLean WHI, Leigh IM, McGrath JA, Salas-Alanis JC, Tolar J, South AP. Lysyl Hydroxylase 3 Localizes to Epidermal Basement Membrane and Is Reduced in Patients with Recessive Dystrophic Epidermolysis Bullosa. PLoS One 2015; 10:e0137639. [PMID: 26380979 PMCID: PMC4575209 DOI: 10.1371/journal.pone.0137639] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2015] [Accepted: 08/19/2015] [Indexed: 11/18/2022] Open
Abstract
Recessive dystrophic epidermolysis bullosa (RDEB) is caused by mutations in COL7A1 resulting in reduced or absent type VII collagen, aberrant anchoring fibril formation and subsequent dermal-epidermal fragility. Here, we identify a significant decrease in PLOD3 expression and its encoded protein, the collagen modifying enzyme lysyl hydroxylase 3 (LH3), in RDEB. We show abundant LH3 localising to the basement membrane in normal skin which is severely depleted in RDEB patient skin. We demonstrate expression is in-part regulated by endogenous type VII collagen and that, in agreement with previous studies, even small reductions in LH3 expression lead to significantly less secreted LH3 protein. Exogenous type VII collagen did not alter LH3 expression in cultured RDEB keratinocytes and we show that RDEB patients receiving bone marrow transplantation who demonstrate significant increase in type VII collagen do not show increased levels of LH3 at the basement membrane. Our data report a direct link between LH3 and endogenous type VII collagen expression concluding that reduction of LH3 at the basement membrane in patients with RDEB will likely have significant implications for disease progression and therapeutic intervention.
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Affiliation(s)
- Stephen A. Watt
- Division of Cancer Research, University of Dundee, Dundee, United Kingdom
| | | | - Sheila Wright
- Division of Cancer Research, University of Dundee, Dundee, United Kingdom
| | - Megan Riddle
- Stem Cell Institute and Pediatric Blood and Marrow Transplantation, University of Minnesota, Minneapolis, Minnesota, United States of America
| | - Celine Pourreyron
- Division of Cancer Research, University of Dundee, Dundee, United Kingdom
| | - James R. McMillan
- The Centre for Children’s Burns Research, Queensland Children’s Medical Research Institute, Royal Children’s Hospital, The University of Queensland, Brisbane, Australia
| | - Roy M. Kimble
- The Centre for Children’s Burns Research, Queensland Children’s Medical Research Institute, Royal Children’s Hospital, The University of Queensland, Brisbane, Australia
| | - Marco Prisco
- Department of Dermatology & Cutaneous Biology, Thomas Jefferson University, Philadelphia, Pennsylvania, United States of America
| | - Ulrike Gartner
- Centre for Dermatology and Genetic Medicine, Division of Molecular Medicine, Colleges of Life Sciences and Medicine, Dentistry & Nursing, University of Dundee, Dundee, United Kingdom
| | - Emma Warbrick
- Centre for Dermatology and Genetic Medicine, Division of Molecular Medicine, Colleges of Life Sciences and Medicine, Dentistry & Nursing, University of Dundee, Dundee, United Kingdom
| | - W. H. Irwin McLean
- Centre for Dermatology and Genetic Medicine, Division of Molecular Medicine, Colleges of Life Sciences and Medicine, Dentistry & Nursing, University of Dundee, Dundee, United Kingdom
| | - Irene M. Leigh
- Division of Cancer Research, University of Dundee, Dundee, United Kingdom
| | - John A. McGrath
- St. John's Institute of Dermatology, King's College London (Guy's Campus), London, United Kingdom
| | - Julio C. Salas-Alanis
- Basic Sciences Department, Medicine School, University of Monterrey, Monterrey, Mexico
| | - Jakub Tolar
- Stem Cell Institute and Pediatric Blood and Marrow Transplantation, University of Minnesota, Minneapolis, Minnesota, United States of America
| | - Andrew P. South
- Division of Cancer Research, University of Dundee, Dundee, United Kingdom
- Department of Dermatology & Cutaneous Biology, Thomas Jefferson University, Philadelphia, Pennsylvania, United States of America
- * E-mail:
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Phase I/II ex vivo gene therapy clinical trial for recessive dystrophic epidermolysis bullosa using skin equivalent grafts genetically corrected with a COL7A1-encoding SIN retroviral vector (GENEGRAFT). HUM GENE THER CL DEV 2014; 25:65-6. [PMID: 24933565 DOI: 10.1089/humc.2014.2508] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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Koller U, Hainzl S, Kocher T, Hüttner C, Klausegger A, Gruber C, Mayr E, Wally V, Bauer JW, Murauer EM. Trans-splicing improvement by the combined application of antisense strategies. Int J Mol Sci 2015; 16:1179-91. [PMID: 25569093 PMCID: PMC4307297 DOI: 10.3390/ijms16011179] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2014] [Accepted: 12/25/2014] [Indexed: 11/16/2022] Open
Abstract
Spliceosome-mediated RNA trans-splicing has become an emergent tool for the repair of mutated pre-mRNAs in the treatment of genetic diseases. RNA trans-splicing molecules (RTMs) are designed to induce a specific trans-splicing reaction via a binding domain for a respective target pre-mRNA region. A previously established reporter-based screening system allows us to analyze the impact of various factors on the RTM trans-splicing efficiency in vitro. Using this system, we are further able to investigate the potential of antisense RNAs (AS RNAs), presuming to improve the trans-splicing efficiency of a selected RTM, specific for intron 102 of COL7A1. Mutations in the COL7A1 gene underlie the dystrophic subtype of the skin blistering disease epidermolysis bullosa (DEB). We have shown that co-transfections of the RTM and a selected AS RNA, interfering with competitive splicing elements on a COL7A1-minigene (COL7A1-MG), lead to a significant increase of the RNA trans-splicing efficiency. Thereby, accurate trans-splicing between the RTM and the COL7A1-MG is represented by the restoration of full-length green fluorescent protein GFP on mRNA and protein level. This mechanism can be crucial for the improvement of an RTM-mediated correction, especially in cases where a high trans-splicing efficiency is required.
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Affiliation(s)
- Ulrich Koller
- Department of Dermatology and EB House Austria, Paracelsus Medical University, Salzburg 5020, Austria.
| | - Stefan Hainzl
- Department of Dermatology and EB House Austria, Paracelsus Medical University, Salzburg 5020, Austria.
| | - Thomas Kocher
- Department of Dermatology and EB House Austria, Paracelsus Medical University, Salzburg 5020, Austria.
| | - Clemens Hüttner
- Department of Dermatology and EB House Austria, Paracelsus Medical University, Salzburg 5020, Austria.
| | - Alfred Klausegger
- Department of Dermatology and EB House Austria, Paracelsus Medical University, Salzburg 5020, Austria.
| | - Christina Gruber
- Department of Dermatology and EB House Austria, Paracelsus Medical University, Salzburg 5020, Austria.
| | - Elisabeth Mayr
- Department of Dermatology and EB House Austria, Paracelsus Medical University, Salzburg 5020, Austria.
| | - Verena Wally
- Department of Dermatology and EB House Austria, Paracelsus Medical University, Salzburg 5020, Austria.
| | - Johann W Bauer
- Department of Dermatology and EB House Austria, Paracelsus Medical University, Salzburg 5020, Austria.
| | - Eva M Murauer
- Department of Dermatology and EB House Austria, Paracelsus Medical University, Salzburg 5020, Austria.
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Suzuki M, Hosoda S, Yamada T, Komine M, Murata S, Yokokura H, Ohtsuki M. A case of dermatitis herpetiformis with blister formation between laminin-332 and type 7 collagen. J Dermatol 2014; 41:1030-1. [PMID: 25297981 DOI: 10.1111/1346-8138.12630] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Affiliation(s)
- Masayuki Suzuki
- Department of Dermatology, Jichi Medical University, Shimotsuke, Tochigi, Japan
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31
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McGuire JD, Walker MP, Mousa A, Wang Y, Gorski JP. Type VII collagen is enriched in the enamel organic matrix associated with the dentin-enamel junction of mature human teeth. Bone 2014; 63:29-35. [PMID: 24594343 PMCID: PMC4012641 DOI: 10.1016/j.bone.2014.02.012] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/13/2013] [Revised: 02/20/2014] [Accepted: 02/21/2014] [Indexed: 11/23/2022]
Abstract
The inner enamel region of erupted teeth is known to exhibit higher fracture toughness and crack growth resistance than bulk phase enamel. However, an explanation for this behavior has been hampered by the lack of compositional information for the residual enamel organic matrix. Since enamel-forming ameloblasts are known to express type VII collagen and type VII collagen null mice display abnormal amelogenesis, the aim of this study was to determine whether type VII collagen is a component of the enamel organic matrix at the dentin-enamel junction (DEJ) of mature human teeth. Immunofluorescent confocal microscopy of demineralized tooth sections localized type VII collagen to the organic matrix surrounding individual enamel rods near the DEJ. Morphologically, immunoreactive type VII collagen helical-bundles resembled the gnarled-pattern of enamel rods detected by Coomassie Blue staining. Western blotting of whole crown or enamel matrix extracts also identified characteristic Mr=280 and 230 kDa type VII dimeric forms, which resolved into 75 and 25 kDa bands upon reduction. As expected, the collagenous domain of type VII collagen was resistant to pepsin digestion, but was susceptible to purified bacterial collagenase. These results demonstrate the inner enamel organic matrix in mature teeth contains macromolecular type VII collagen. Based on its physical association with the DEJ and its well-appreciated capacity to complex with other collagens, we hypothesize that enamel embedded type VII collagen fibrils may contribute not only to the structural resilience of enamel, but may also play a role in bonding enamel to dentin.
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Affiliation(s)
- Jacob D McGuire
- Department of Oral and Craniofacial Sciences, School of Dentistry, University of Missouri - Kansas City, Kansas City, MO 64108, USA.
| | - Mary P Walker
- Department of Oral and Craniofacial Sciences, School of Dentistry, University of Missouri - Kansas City, Kansas City, MO 64108, USA; Center of Excellence in Musculoskeletal and Dental Tissues, University of Missouri - Kansas City, Kansas City, MO 64108, USA
| | - Ahmad Mousa
- Department of Oral and Craniofacial Sciences, School of Dentistry, University of Missouri - Kansas City, Kansas City, MO 64108, USA
| | - Yong Wang
- Department of Oral and Craniofacial Sciences, School of Dentistry, University of Missouri - Kansas City, Kansas City, MO 64108, USA; Center of Excellence in Musculoskeletal and Dental Tissues, University of Missouri - Kansas City, Kansas City, MO 64108, USA
| | - Jeff P Gorski
- Department of Oral and Craniofacial Sciences, School of Dentistry, University of Missouri - Kansas City, Kansas City, MO 64108, USA; Center of Excellence in Musculoskeletal and Dental Tissues, University of Missouri - Kansas City, Kansas City, MO 64108, USA
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Nyström A, Velati D, Mittapalli VR, Fritsch A, Kern JS, Bruckner-Tuderman L. Collagen VII plays a dual role in wound healing. J Clin Invest 2013; 123:3498-509. [PMID: 23867500 PMCID: PMC3726167 DOI: 10.1172/jci68127] [Citation(s) in RCA: 139] [Impact Index Per Article: 12.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2012] [Accepted: 05/09/2013] [Indexed: 01/01/2023] Open
Abstract
Although a host of intracellular signals is known to contribute to wound healing, the role of the cell microenvironment in tissue repair remains elusive. Here we employed 2 different mouse models of genetic skin fragility to assess the role of the basement membrane protein collagen VII (COL7A1) in wound healing. COL7A1 secures the attachment of the epidermis to the dermis, and its mutations cause a human skin fragility disorder coined recessive dystrophic epidermolysis bullosa (RDEB) that is associated with a constant wound burden. We show that COL7A1 is instrumental for skin wound closure by 2 interconnected mechanisms. First, COL7A1 was required for re-epithelialization through organization of laminin-332 at the dermal-epidermal junction. Its loss perturbs laminin-332 organization during wound healing, which in turn abrogates strictly polarized expression of integrin α6β4 in basal keratinocytes and negatively impacts the laminin-332/integrin α6β4 signaling axis guiding keratinocyte migration. Second, COL7A1 supported dermal fibroblast migration and regulates their cytokine production in the granulation tissue. These findings, which were validated in human wounds, identify COL7A1 as a critical player in physiological wound healing in humans and mice and may facilitate development of therapeutic strategies not only for RDEB, but also for other chronic wounds.
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Affiliation(s)
- Alexander Nyström
- Department of Dermatology, University Medical Center, Freiburg, Germany.
Freiburg Institute for Advanced Studies, School of Life Sciences — LifeNet, Freiburg, Germany
| | - Daniela Velati
- Department of Dermatology, University Medical Center, Freiburg, Germany.
Freiburg Institute for Advanced Studies, School of Life Sciences — LifeNet, Freiburg, Germany
| | - Venugopal R. Mittapalli
- Department of Dermatology, University Medical Center, Freiburg, Germany.
Freiburg Institute for Advanced Studies, School of Life Sciences — LifeNet, Freiburg, Germany
| | - Anja Fritsch
- Department of Dermatology, University Medical Center, Freiburg, Germany.
Freiburg Institute for Advanced Studies, School of Life Sciences — LifeNet, Freiburg, Germany
| | - Johannes S. Kern
- Department of Dermatology, University Medical Center, Freiburg, Germany.
Freiburg Institute for Advanced Studies, School of Life Sciences — LifeNet, Freiburg, Germany
| | - Leena Bruckner-Tuderman
- Department of Dermatology, University Medical Center, Freiburg, Germany.
Freiburg Institute for Advanced Studies, School of Life Sciences — LifeNet, Freiburg, Germany
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Osborn MJ, Starker CG, McElroy AN, Webber BR, Riddle MJ, Xia L, DeFeo AP, Gabriel R, Schmidt M, Von Kalle C, Carlson DF, Maeder ML, Joung JK, Wagner JE, Voytas DF, Blazar BR, Tolar J. TALEN-based gene correction for epidermolysis bullosa. Mol Ther 2013; 21:1151-9. [PMID: 23546300 PMCID: PMC3677309 DOI: 10.1038/mt.2013.56] [Citation(s) in RCA: 194] [Impact Index Per Article: 17.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
Abstract
Recessive dystrophic epidermolysis bullosa (RDEB) is characterized by a functional deficit of type VII collagen protein due to gene defects in the type VII collagen gene (COL7A1). Gene augmentation therapies are promising, but run the risk of insertional mutagenesis. To abrogate this risk, we explored the possibility of using engineered transcription activator-like effector nucleases (TALEN) for precise genome editing. We report the ability of TALEN to induce site-specific double-stranded DNA breaks (DSBs) leading to homology-directed repair (HDR) from an exogenous donor template. This process resulted in COL7A1 gene mutation correction in primary fibroblasts that were subsequently reprogrammed into inducible pluripotent stem cells and showed normal protein expression and deposition in a teratoma-based skin model in vivo. Deep sequencing-based genome-wide screening established a safety profile showing on-target activity and three off-target (OT) loci that, importantly, were at least 10 kb from a coding sequence. This study provides proof-of-concept for TALEN-mediated in situ correction of an endogenous patient-specific gene mutation and used an unbiased screen for comprehensive TALEN target mapping that will cooperatively facilitate translational application.
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Affiliation(s)
- Mark J Osborn
- Division of Blood and Marrow Transplantation, Department of Pediatrics, University of Minnesota, Minneapolis, Minnesota, USA
- Center for Genome Engineering, University of Minnesota, Minneapolis, Minnesota, USA
| | - Colby G Starker
- Center for Genome Engineering, University of Minnesota, Minneapolis, Minnesota, USA
- Department of Genetics, Cell Biology & Development, University of Minnesota, Minneapolis, Minnesota, USA
| | - Amber N McElroy
- Division of Blood and Marrow Transplantation, Department of Pediatrics, University of Minnesota, Minneapolis, Minnesota, USA
| | - Beau R Webber
- Division of Blood and Marrow Transplantation, Department of Pediatrics, University of Minnesota, Minneapolis, Minnesota, USA
| | - Megan J Riddle
- Division of Blood and Marrow Transplantation, Department of Pediatrics, University of Minnesota, Minneapolis, Minnesota, USA
| | - Lily Xia
- Division of Blood and Marrow Transplantation, Department of Pediatrics, University of Minnesota, Minneapolis, Minnesota, USA
| | - Anthony P DeFeo
- Division of Blood and Marrow Transplantation, Department of Pediatrics, University of Minnesota, Minneapolis, Minnesota, USA
| | - Richard Gabriel
- Department of Translational Oncology, National Center for Tumor Diseases, Heidelberg, Germany
- German Cancer Research Center (DKFZ), Heidelberg, Germany
| | - Manfred Schmidt
- Department of Translational Oncology, National Center for Tumor Diseases, Heidelberg, Germany
- German Cancer Research Center (DKFZ), Heidelberg, Germany
| | - Christof Von Kalle
- Department of Translational Oncology, National Center for Tumor Diseases, Heidelberg, Germany
- German Cancer Research Center (DKFZ), Heidelberg, Germany
| | - Daniel F Carlson
- Center for Genome Engineering, University of Minnesota, Minneapolis, Minnesota, USA
| | - Morgan L Maeder
- Molecular Pathology Unit, Center for Computational & Integrative Biology, and Center for Cancer Research, Massachusetts General Hospital, Charlestown, Massachusetts, USA
- Program in Biological and Biomedical Sciences, Harvard Medical School, Boston, Massachusetts, USA
| | - J Keith Joung
- Molecular Pathology Unit, Center for Computational & Integrative Biology, and Center for Cancer Research, Massachusetts General Hospital, Charlestown, Massachusetts, USA
- Program in Biological and Biomedical Sciences, Harvard Medical School, Boston, Massachusetts, USA
- Department of Pathology, Harvard Medical School, Boston, MA, USA
| | - John E Wagner
- Division of Blood and Marrow Transplantation, Department of Pediatrics, University of Minnesota, Minneapolis, Minnesota, USA
| | - Daniel F Voytas
- Center for Genome Engineering, University of Minnesota, Minneapolis, Minnesota, USA
- Department of Genetics, Cell Biology & Development, University of Minnesota, Minneapolis, Minnesota, USA
| | - Bruce R Blazar
- Division of Blood and Marrow Transplantation, Department of Pediatrics, University of Minnesota, Minneapolis, Minnesota, USA
| | - Jakub Tolar
- Division of Blood and Marrow Transplantation, Department of Pediatrics, University of Minnesota, Minneapolis, Minnesota, USA
- Blood and Marrow Transplantation, University of Minnesota Medical School, MMC 366, 420 Delaware Street SE, Minneapolis, Minnesota 55455, USA. E-mail:
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Nyström A, Buttgereit J, Bader M, Shmidt T, Özcelik C, Hausser I, Bruckner-Tuderman L, Kern JS. Rat model for dominant dystrophic epidermolysis bullosa: glycine substitution reduces collagen VII stability and shows gene-dosage effect. PLoS One 2013; 8:e64243. [PMID: 23717576 PMCID: PMC3662756 DOI: 10.1371/journal.pone.0064243] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2013] [Accepted: 04/10/2013] [Indexed: 02/07/2023] Open
Abstract
Dystrophic epidermolysis bullosa, a severely disabling hereditary skin fragility disorder, is caused by mutations in the gene coding for collagen VII, a specialized adhesion component of the dermal-epidermal junction zone. Both recessive and dominant forms are known; the latter account for about 40% of cases. Patients with dominant dystrophic epidermolysis bullosa exhibit a spectrum of symptoms ranging from mild localized to generalized skin manifestations. Individuals with the same mutation can display substantial phenotypic variance, emphasizing the role of modifying genes in this disorder. The etiology of dystrophic epidermolysis bullosa has been known for around two decades; however, important pathogenetic questions such as involvement of modifier genes remain unanswered and a causative therapy has yet to be developed. Much of the failure to make progress in these areas is due to the lack of suitable animal models that capture all aspects of this complex monogenetic disorder. Here, we report the first rat model of dominant dystrophic epidermolysis bullosa. Affected rats carry a spontaneous glycine to aspartic acid substitution, p.G1867D, within the main structural domain of collagen VII. This confers dominant-negative interference of protein folding and decreases the stability of mutant collagen VII molecules and their polymers, the anchoring fibrils. The phenotype comprises fragile and blister-prone skin, scarring and nail dystrophy. The model recapitulates all signs of the human disease with complete penetrance. Homozygous carriers of the mutation are more severely affected than heterozygous ones, demonstrating for the first time a gene-dosage effect of mutated alleles in dystrophic epidermolysis bullosa. This novel viable and workable animal model for dominant dystrophic epidermolysis bullosa will be valuable for addressing molecular disease mechanisms, effects of modifying genes, and development of novel molecular therapies for patients with dominantly transmitted skin disease.
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Affiliation(s)
- Alexander Nyström
- Department of Dermatology, University Freiburg Medical Center, Freiburg, Germany
| | - Jens Buttgereit
- Max Delbück Center for Molecular Medicine (MDC), Campus Berlin-Buch, Berlin, Germany
- Experimental and Clinical Research Center (ECRC), Berlin, Germany
| | - Michael Bader
- Max Delbück Center for Molecular Medicine (MDC), Campus Berlin-Buch, Berlin, Germany
| | - Tatiana Shmidt
- Max Delbück Center for Molecular Medicine (MDC), Campus Berlin-Buch, Berlin, Germany
- Experimental and Clinical Research Center (ECRC), Berlin, Germany
| | - Cemil Özcelik
- Max Delbück Center for Molecular Medicine (MDC), Campus Berlin-Buch, Berlin, Germany
- Experimental and Clinical Research Center (ECRC), Berlin, Germany
| | - Ingrid Hausser
- Department of Dermatology, University of Heidelberg, Heidelberg, Germany
| | - Leena Bruckner-Tuderman
- Department of Dermatology, University Freiburg Medical Center, Freiburg, Germany
- Freiburg Institute for Advanced Studies, School of Life Sciences, LifeNet, University of Freiburg, Freiburg, Germany
- * E-mail:
| | - Johannes S. Kern
- Department of Dermatology, University Freiburg Medical Center, Freiburg, Germany
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Rietveld M, Janson D, Siamari R, Vicanova J, Andersen MT, El Ghalbzouri A. Marine-derived nutrient improves epidermal and dermal structure and prolongs the life span of reconstructed human skin equivalents. J Cosmet Dermatol 2012; 11:213-22. [PMID: 22938006 DOI: 10.1111/j.1473-2165.2012.00631.x] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
INTRODUCTION Imedeen™ is a cosmeceutical that provides nutrients to the skin. One of its active ingredients is the Marine Complex™ (MC). AIM The aim of this study was to evaluate whether MC affects skin morphogenesis differently in female and male human skin equivalents (HSEs). METHODS Human skin equivalents were established with cells obtained from female or male donors between 30 and 45 years of age and cultured for seven or 11 weeks in the presence or absence of MC. Using immunohistochemistry, we examined early differentiation by keratin 10 expression, (hyper)proliferation by keratin 17 and Ki67, and basement membrane composition by laminin 332 and collagen type VII. In addition, the expression of collagen type I and the secretion of pro-collagen I were measured. RESULTS Marine Complex strongly increased the number of Ki67-positive epidermal cells in female HSEs. In the dermis, MC significantly stimulated the amount of secreted pro-collagen I and increased the deposition of laminin 332 and collagen type VII. Furthermore, MC prolonged the viable phase of HSEs by slowing down its natural degradation. After 11 weeks of culturing, the MC-treated HSEs showed higher numbers of viable epidermal cell layers and a thicker dermal extracellular matrix compared with controls. In contrast, these effects were less pronounced in male HSEs. CONCLUSION The MC nutrient positively stimulated overall HSE tissue formation and prolonged the longevity of both female and male HSEs. The ability of MC to stimulate the deposition of basement membrane and dermal components can be used to combat 2 human skin aging in vivo.
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Affiliation(s)
- Marion Rietveld
- Department of Dermatology, Leiden University Medical Center, Leiden, The Netherlands
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Ostmeier M, Kerkmann A, Frase R, Ganter M, Distl O, Hewicker-Trautwein M. Inherited junctional epidermolysis bullosa (Herlitz type) in German black-headed mutton sheep. J Comp Pathol 2012; 146:338-47. [PMID: 22000950 DOI: 10.1016/j.jcpa.2011.08.008] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2011] [Revised: 08/04/2011] [Accepted: 08/19/2011] [Indexed: 11/18/2022]
Abstract
This report describes the microscopical, immunohistochemical and ultrastructural findings in the first ovine cases of the Herlitz type of inherited junctional epidermolysis bullosa. Sixteen German black-headed mutton lambs and one crossbred lamb had blisters and ulceration of the skin and mucous membranes in addition to alterations of the horn of the hooves. Microscopically, there was separation of the dermoepidermal junction, which was confirmed to be located in the lamina lucida of the basement membrane by electron microscopy. In areas of subepidermal splitting the hemidesmosomes were missing and in adjacent areas they appeared to be rudimentary and reduced in number. Immunohistochemistry for laminin 5 revealed a markedly reduced expression of this molecule on the dermal side of the blisters, while expression of collagen VII was normal.
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Affiliation(s)
- M Ostmeier
- Department of Pathology, University of Veterinary Medicine Hannover, Bünteweg 17 p, D-30559 Hannover, Germany
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Pal-Ghosh S, Pajoohesh-Ganji A, Tadvalkar G, Stepp MA. Removal of the basement membrane enhances corneal wound healing. Exp Eye Res 2011; 93:927-36. [PMID: 22067129 PMCID: PMC3443627 DOI: 10.1016/j.exer.2011.10.012] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2011] [Revised: 10/13/2011] [Accepted: 10/18/2011] [Indexed: 10/15/2022]
Abstract
Recurrent corneal erosions are painful and put patients' vision at risk. Treatment typically begins with debridement of the area around the erosion site followed by more aggressive treatments. An in vivo mouse model has been developed that reproducibly induces recurrent epithelial erosions in wild-type mice spontaneously within two weeks after a single 1.5 mm corneal debridement wound created using a dulled-blade. This study was conducted to determine whether 1) inhibiting MMP9 function during healing after dulled-blade wounding impacts erosion development and 2) wounds made with a rotating-burr heal without erosions. Oral or topical inhibition of MMPs after dulled-blade wounding does not improve healing. Wounds made by rotating-burr heal with significantly fewer erosions than dulled-blade wounds. The localization of MMP9, β4 integrin and basement membrane proteins (LN332 and type VII collagen), immune cell influx, and reinnervation of the corneal nerves were compared after both wound types. Rotating-burr wounds remove the anterior basement membrane centrally but not at the periphery near the wound margin, induce more apoptosis of corneal stromal cells, and damage more stromal nerve fibers. Despite the fact that rotating-burr wounds do more damage to the cornea, fewer immune cells are recruited and significantly more wounds resolve completely.
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Affiliation(s)
- Sonali Pal-Ghosh
- The George Washington University Medical Center, Department of Anatomy and Regenerative Biology, Washington, DC 20037
| | - Ahdeah Pajoohesh-Ganji
- The George Washington University Medical Center, Department of Anatomy and Regenerative Biology, Washington, DC 20037
| | - Gauri Tadvalkar
- The George Washington University Medical Center, Department of Anatomy and Regenerative Biology, Washington, DC 20037
| | - Mary Ann Stepp
- The George Washington University Medical Center, Department of Anatomy and Regenerative Biology, Washington, DC 20037
- The George Washington University Medical Center, Department of Ophthalmology, Washington, DC 20037
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El-Domyati M, El-Ammawi TS, Moawad O, Medhat W, Mahoney MG, Uitto J. Intense pulsed light photorejuvenation: a histological and immunohistochemical evaluation. J Drugs Dermatol 2011; 10:1246-1252. [PMID: 22052303] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
BACKGROUND The use of intense pulsed light (IPL) for facial rejuvenation had been the topic of many studies. However, few of them discussed quantitative changes in extracellular matrix proteins after IPL therapy. OBJECTIVE To objectively quantify the histological changes in extracellular matrix proteins after IPL treatment for facial wrinkles. METHODS Biopsy specimens were obtained from the periocular area of six volunteers of Fitzpatrick skin type III-IV and Glogau's class I-III wrinkles. They were subjected to three months of IPL treatment (six sessions at two-week intervals). Using histological and immunostaining analysis coupled with computerized morphometric analysis, quantitative evaluation of collagen types I, III and VII, newly synthesized collagen, total elastin and tropoelastin was performed for skin biopsies at baseline, end of treatment, and three months post-treatment. RESULTS Clinical assessment of volunteers did not show clinically noticeable improvement in facial wrinkles after IPL treatment. Furthermore, quantitative evaluation of extracellular matrix proteins showed no statistically significant changes (P>0.05) in response to IPL treatment CONCLUSION Although 50 percent of volunteers showed mild improvement in skin texture at the end of IPL treatment, none of them reported improvement in skin tightening or wrinkles. No statistically significant histological changes were observed three months post IPL treatment.
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Chiang LY, Poole K, Oliveira BE, Duarte N, Sierra YAB, Bruckner-Tuderman L, Koch M, Hu J, Lewin GR. Laminin-332 coordinates mechanotransduction and growth cone bifurcation in sensory neurons. Nat Neurosci 2011; 14:993-1000. [PMID: 21725315 DOI: 10.1038/nn.2873] [Citation(s) in RCA: 53] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2011] [Accepted: 05/10/2011] [Indexed: 11/09/2022]
Abstract
Laminin-332 is a major component of the dermo-epidermal skin basement membrane and maintains skin integrity. The transduction of mechanical force into electrical signals by sensory endings in the skin requires mechanosensitive channels. We found that mouse epidermal keratinocytes produce a matrix that is inhibitory for sensory mechanotransduction and that the active molecular component is laminin-332. Substrate-bound laminin-332 specifically suppressed one type of mechanosensitive current (rapidly adapting) independently of integrin-receptor activation. This mechanotransduction suppression could be exerted locally and was mediated by preventing the formation of protein tethers necessary for current activation. We also found that laminin-332 could locally control sensory axon branching behavior. Loss of laminin-332 in humans led to increased sensory terminal branching and may lead to a de-repression of mechanosensitive currents. These previously unknown functions for this matrix molecule may explain some of the extreme pain experienced by individuals with epidermolysis bullosa who are deficient in laminin-332.
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MESH Headings
- Adaptation, Physiological/drug effects
- Animals
- Animals, Newborn
- Axons/physiology
- Cell Adhesion Molecules/deficiency
- Cell Adhesion Molecules/metabolism
- Cell Adhesion Molecules/pharmacology
- Cell Adhesion Molecules/ultrastructure
- Cells, Cultured
- Coculture Techniques
- Collagen Type VII/metabolism
- Epidermolysis Bullosa, Junctional/metabolism
- Epidermolysis Bullosa, Junctional/pathology
- Ganglia, Spinal/cytology
- Growth Cones/drug effects
- Growth Cones/physiology
- Growth Cones/ultrastructure
- Humans
- Keratinocytes/cytology
- Lidocaine/analogs & derivatives
- Lidocaine/pharmacology
- Mechanotransduction, Cellular/drug effects
- Mechanotransduction, Cellular/genetics
- Mechanotransduction, Cellular/physiology
- Membrane Potentials/genetics
- Membrane Potentials/physiology
- Mice
- Microscopy, Atomic Force/methods
- Microscopy, Electron, Transmission/methods
- Neurofilament Proteins/metabolism
- Patch-Clamp Techniques/methods
- Physical Stimulation
- Reaction Time/drug effects
- Reaction Time/genetics
- Sensory Receptor Cells/cytology
- Sensory Receptor Cells/drug effects
- Sensory Receptor Cells/physiology
- Skin/innervation
- Skin/metabolism
- Skin/pathology
- Sodium Channel Blockers/pharmacology
- TRPV Cation Channels/metabolism
- Tetrodotoxin/pharmacology
- Time Factors
- Ubiquitin Thiolesterase/metabolism
- Kalinin
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Affiliation(s)
- Li-Yang Chiang
- Department of Neuroscience, Max-Delbrück Center for Molecular Medicine and Charité Universitätsmedizin Berlin, Berlin, Germany
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Abstract
REASONS FOR PERFORMING STUDY The timing of lamellar basement membrane (BM) changes occurring during laminitis development is incompletely understood. OBJECTIVES To determine the temporal progression of lamellar BM changes and whether laminin-332 (Ln-332) γ2 cleavage products are generated during laminitis development. METHODS Eight clinically normal Standardbred horses were allocated into treatment (n = 5) or sham (n = 3) groups. The treatment group received, via nasogastric intubation, an oligofructose (OF) bolus (10 g/kg bwt) while the sham group was given water. Laminitis induction proceeded for 48 h followed by euthanasia. Lamellar biopsies were obtained prior to dosing and at intervals during the treatment period for analysis (at 12, 18, 24, 30 and 36 h and at 48 h following euthanasia). RESULTS Changes in lamellar collagen type IV and Ln-332 were first observed at 12 h post dosing. A unique pattern of reactivity for the Ln-332 γ2 antibody D4B5 occurred, in which reactivity was observed only in lamellar tissue affected by laminitis. No bioactive Ln-332 γ2 proteolytic fragments were detected in lamellar samples. CONCLUSIONS Basement membrane changes occurred early during the laminitis process. Direct Ln-332 γ2 cleavage to release biologically active products did not appear to occur. Thus loss of stability or protein interaction of the BM is probably responsible for the γ2 specific reactivity observed. POTENTIAL RELEVANCE Basement membrane changes may a first step in lamellar failure occurring prior to detection with conventional methods. Thus, more sensitive detection methods of BM changes are required to study laminitis development.
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Affiliation(s)
- M B Visser
- The Australian Equine Laminitis Research Unit, School of Veterinary Science, The University of Queensland, St Lucia, Australia
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Chi CC, Wang SH, Prenter A, Cooper S, Wojnarowska F. Basement membrane zone and dermal extracellular matrix of the vulva, vagina and amnion: An immunohistochemical study with comparison with non-reproductive epithelium. Australas J Dermatol 2010; 51:243-7. [PMID: 21198519 DOI: 10.1111/j.1440-0960.2010.00650.x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2023]
Abstract
BACKGROUND/OBJECTIVES The basement membrane zone (BMZ) is an anatomically defined region present in all types of skin and mucosa, linking the epithelium to the mesenchyme with a complex structure to provide adhesion. Altered antigenic expression of the BMZ is implicated in interface dermatoses, and the BMZ is targeted by autoantibodies in subepidermal immunobullous dermatoses. This study aims to compare the antigenic expression of the BMZ and the dermal extracellular matrix in female genital skin and mucosa and amnion, with non-reproductive skin and mucosa. METHODS An indirect immunofluorescence technique was used to compare the antigenic expression of hemidesmosome, lamina lucida, anchoring filaments, lamina densa, anchoring fibrils and extracellular matrix in samples of non-reproductive skin (three), oral mucosa (three), vulval skin (two), vagina (three) and amnion (four). RESULTS Antigenic expression was similar in the stratified epithelium of reproductive and non-reproductive skin and mucosa, but differed in the simple cuboidal epithelium of amnion, which had reduced expression of dermal-associated antigens. CONCLUSIONS The BMZ and dermal extracellular matrix of vagina and vulva are very similar to those of non-reproductive skin and mucosa despite their various functions, but differs from amnion. Their antigenic expression does not fully account for the anatomical distribution of immunobullous and interface dermatoses.
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Affiliation(s)
- Ching-Chi Chi
- Nuffield Department of Clinical Medicine, University of Oxford, Oxford, UK
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Wagner JE, Ishida-Yamamoto A, McGrath JA, Hordinsky M, Keene DR, Woodley DT, Chen M, Riddle MJ, Osborn MJ, Lund T, Dolan M, Blazar BR, Tolar J. Bone marrow transplantation for recessive dystrophic epidermolysis bullosa. N Engl J Med 2010; 363:629-39. [PMID: 20818854 PMCID: PMC2967187 DOI: 10.1056/nejmoa0910501] [Citation(s) in RCA: 258] [Impact Index Per Article: 18.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
BACKGROUND Recessive dystrophic epidermolysis bullosa is an incurable, often fatal mucocutaneous blistering disease caused by mutations in COL7A1, the gene encoding type VII collagen (C7). On the basis of preclinical data showing biochemical correction and prolonged survival in col7 −/− mice, we hypothesized that allogeneic marrow contains stem cells capable of ameliorating the manifestations of recessive dystrophic epidermolysis bullosa in humans. METHODS Between October 2007 and August 2009, we treated seven children who had recessive dystrophic epidermolysis bullosa with immunomyeloablative chemotherapy and allogeneic stem-cell transplantation. We assessed C7 expression by means of immunofluorescence staining and used transmission electron microscopy to visualize anchoring fibrils. We measured chimerism by means of competitive polymerase-chain-reaction assay, and documented blister formation and wound healing with the use of digital photography. RESULTS One patient died of cardiomyopathy before transplantation. Of the remaining six patients, one had severe regimen-related cutaneous toxicity, with all having improved wound healing and a reduction in blister formation between 30 and 130 days after transplantation. We observed increased C7 deposition at the dermal-epidermal junction in five of the six recipients, albeit without normalization of anchoring fibrils. Five recipients were alive 130 to 799 days after transplantation; one died at 183 days as a consequence of graft rejection and infection. The six recipients had substantial proportions of donor cells in the skin, and none had detectable anti-C7 antibodies. CONCLUSIONS Increased C7 deposition and a sustained presence of donor cells were found in the skin of children with recessive dystrophic epidermolysis bullosa after allogeneic bone marrow transplantation. Further studies are needed to assess the long-term risks and benefits of such therapy in patients with this disorder. (Funded by the National Institutes of Health; ClinicalTrials.gov number, NCT00478244.)
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Affiliation(s)
- John E Wagner
- Blood and Marrow Transplant Program, Department of Pediatrics, University of Minnesota, Minneapolis, MN 55455, USA.
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Tandon R, Padmanabhan P, Gujar P. Intraepithelial flap creation during epi-LASIK. J Cataract Refract Surg 2010; 36:702-3. [PMID: 20362883 DOI: 10.1016/j.jcrs.2010.01.010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2009] [Indexed: 11/19/2022]
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45
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Natsuga K, Sawamura D, Goto M, Homma E, Goto-Ohguchi Y, Aoyagi S, Akiyama M, Kuroyanagi Y, Shimizu H. Response of intractable skin ulcers in recessive dystrophic epidermolysis bullosa patients to an allogeneic cultured dermal substitute. Acta Derm Venereol 2010; 90:165-9. [PMID: 20169300 DOI: 10.2340/00015555-0776] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Recessive dystrophic epidermolysis bullosa (RDEB) is an inherited skin disorder caused by mutations in the COL7A1 gene, which encodes collagen VII (COL7). Skin ulcers in RDEB patients are sometimes slow to heal. We describe here the therapeutic response of intractable skin ulcers in two patients with generalized RDEB to treatment with an allogeneic cultured dermal substitute (CDS). Skin ulcers in both patients epithelialized by 3-4 weeks after this treatment. Immunohistochemical studies demonstrated that the COL7 expression level remained reduced with respect to the control skin and that it did not differ significantly between graft-treated and untreated areas. Electron microscopy showed aberrant anchoring fibrils beneath the lamina densa of both specimens. In conclusion, CDS is a promising modality for treatment of intractable skin ulcers in patients with RDEB, even though it does not appear to increase COL7 expression.
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Affiliation(s)
- Ken Natsuga
- Department of Dermatology, Hokkaido University Graduate School of Medicine, Sapporo, Japan.
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Chung HJ, Steplewski A, Uitto J, Fertala A. Fluorescent protein markers to tag collagenous proteins: the paradigm of procollagen VII. Biochem Biophys Res Commun 2009; 390:662-6. [PMID: 19822129 PMCID: PMC2796180 DOI: 10.1016/j.bbrc.2009.10.024] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2009] [Accepted: 10/06/2009] [Indexed: 10/20/2022]
Abstract
Fluorescent proteins are powerful markers allowing tracking expression, intracellular localization, and translocation of tagged proteins but their effects on the structure and assembly of complex extracellular matrix proteins has not been investigated. Here, we analyzed the utility of fluorescent proteins as markers for procollagen VII, a triple-helical protein critical for the integrity of dermal-epidermal junction. DNA constructs encoding a red fluorescent protein-tagged wild type mini-procollagen VII alpha chain and green fluorescent protein-tagged alpha chains harboring selected mutations were genetically engineered. These DNA constructs were co-expressed in HEK-293 cells and the assembly of heterogeneous triple-helical mini-procollagen VII molecules was analyzed. Immunoprecipitation and fluorescence resonance energy transfer assays demonstrated that the presence of different fluorescent protein markers at the C-termini of individual alpha chains neither altered formation of triple-helical molecules nor affected their secretion to the extracellular space. Our study provides a basis for employing fluorescent proteins as tags for complex structural proteins of extracellular matrix.
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Affiliation(s)
- Hye Jin Chung
- Department of Dermatology and Cutaneous Biology, Jefferson Medical College, Thomas Jefferson University, Philadelphia, Pennsylvania, 19107, U.S.A
| | - Andrzej Steplewski
- Department of Dermatology and Cutaneous Biology, Jefferson Medical College, Thomas Jefferson University, Philadelphia, Pennsylvania, 19107, U.S.A
| | - Jouni Uitto
- Department of Dermatology and Cutaneous Biology, Jefferson Medical College, Thomas Jefferson University, Philadelphia, Pennsylvania, 19107, U.S.A
| | - Andrzej Fertala
- Department of Dermatology and Cutaneous Biology, Jefferson Medical College, Thomas Jefferson University, Philadelphia, Pennsylvania, 19107, U.S.A
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Kern JS, Loeckermann S, Fritsch A, Hausser I, Roth W, Magin TM, Mack C, Müller ML, Paul O, Ruther P, Bruckner-Tuderman L. Mechanisms of fibroblast cell therapy for dystrophic epidermolysis bullosa: high stability of collagen VII favors long-term skin integrity. Mol Ther 2009; 17:1605-15. [PMID: 19568221 PMCID: PMC2835252 DOI: 10.1038/mt.2009.144] [Citation(s) in RCA: 87] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2009] [Accepted: 06/05/2009] [Indexed: 02/02/2023] Open
Abstract
Here, we report on the first systematic long-term study of fibroblast therapy in a mouse model for recessive dystrophic epidermolysis bullosa (RDEB), a severe skin-blistering disorder caused by loss-of-function of collagen VII. Intradermal injection of wild-type (WT) fibroblasts in >50 mice increased the collagen VII content at the dermal-epidermal junction 3.5- to 4.7-fold. Although the active biosynthesis lasted <28 days, collagen VII remained stable and dramatically improved skin integrity and resistance to mechanical forces for at least 100 days, as measured with a digital 3D-skin sensor for shear forces. Experiments using species-specific antibodies, collagen VII-deficient fibroblasts, gene expression analyses, and cytokine arrays demonstrated that the injected fibroblasts are the major source of newly deposited collagen VII. Apart from transitory mild inflammation, no adverse effects were observed. The cells remained within an area
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Affiliation(s)
- Johannes S Kern
- Deparment of Dermatology, University Medical Center Freiburg, Freiburg, Germany
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Abstract
Aging of sun-exposed skin is accelerated by three major environmental factors: UV radiation, dryness, and oxidation. UV radiation exposure is the most influential factor in skin aging (so-called photoaging). To find ways to protect against damage caused by UV exposure and to delay photoaging, we studied internal changes of sun-exposed skin compared with those of sun-protected skin. We found that the basement membrane (BM) at the dermal-epidermal junction (DEJ) of sun-exposed skin becomes damaged and multilayered and partly disrupted compared with that of sun-protected skin. BM plays important roles in maintaining a healthy epidermis and dermis, and repeated damage destabilizes the skin, accelerating the aging process. Matrix metalloproteinases (MMPs) and urinary plasminogen activator are increased in UV-irradiated skin. MMPs are detected in the cornified layer in sun-exposed skin, but not in sun-protected skin. Using skin-equivalent models, we found that MMPs and plasmin cause BM damage and that the reconstruction of BM is enhanced by inhibiting these proteinases, as well as by increasing the synthesis of BM components. Enhancement of BM repair mechanisms may be a useful strategy in retarding photoaging.Journal of Investigative Dermatology Symposium Proceedings (2009) 14, 2-7; doi:10.1038/jidsymp.2009.5.
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Abstract
PURPOSE To investigate adhesion complex formation in cultivated human limbal epithelium after transplantation into the limbal deficient model. METHODS Cultivated epithelium on amniotic membrane was transplanted into limbal deficient rabbits. The transplanted rabbits and the controls were sacrificed at 1, 2, 3, and 4 weeks. The adhesion complex was examined by electron microscopy and immunohistochemistry. RESULTS Morphologically identifiable hemidesmosomes appeared at 1 week, and matured adhesion complex was found at 3 weeks. Collagen VII was partly stained after transplantation. The mean numbers of hemidesmosomes/2.25 microm were 2.3 +/- 0.9, 2.5 +/- 0.5, 5.2 +/- 1.0, and 4.0 +/- 0.9 at 1, 2, 3, and 4 weeks, and all they were smaller than those in the control, respectively (p < 0.05). It reached 137.4% of the density of hemidesmosomes in human cornea at 3 weeks. The average depths of anchoring fibril were 0.10 +/- 0.03, 0.27 +/- 0.06, 0.45 +/- 0.06, and 0.46 +/- 0.12 microm at 1, 2, 3, and 4 weeks, reaching 75.0% of that in the human cornea after 3 weeks, although they were shallower than that of the control, respectively (p < 0.05). CONCLUSIONS Assembly of adhesion complex in cultivated epithelium transplanted in limbal deficient rabbit might recover to the level of that in the human after 3 weeks, although it was delayed compared with that in normal wound healing of the rabbit.
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Affiliation(s)
- Mee Kum Kim
- Department of Ophthalmology, Seoul National University College of Medicine, and Artificial Eye Laboratory Clinical Research Center, Seoul National University Hospital, Seoul, Korea
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50
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Soma T, Nishida K, Yamato M, Kosaka S, Yang J, Hayashi R, Sugiyama H, Maeda N, Okano T, Tano Y. Histological evaluation of mechanical epithelial separation in epithelial laser in situ keratomileusis. J Cataract Refract Surg 2009; 35:1251-9. [PMID: 19545817 DOI: 10.1016/j.jcrs.2009.02.025] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2008] [Revised: 02/13/2009] [Accepted: 02/19/2009] [Indexed: 11/17/2022]
Abstract
PURPOSE To evaluate the effect of mechanical epithelial separation with an epikeratome on the histologic ultrastructure of epithelial flaps and stromal beds from human corneas. SETTING Departments of Ophthalmology, Osaka University Medical School, Osaka, and Tohoku University School of Medicine, Sendai, and Institute of Advanced Biomedical Engineering and Science and Medical Research Institute, Tokyo Women's Medical University, Tokyo, Japan. METHODS Eye-bank eyes were deepithelialized using an Epi-K epikeratome. Epithelial flaps and stromal beds were assessed by light and electron microscopy. Immunofluorescence staining for types IV and VII collagens, integrins alpha(6) and beta(4), and laminin 5 was also performed. RESULTS Four eyes were evaluated. On scanning electron microscopy, the cleavage planes of epithelial flaps and stromal beds were relatively smooth. On transmission electron microscopy, epithelial flaps were separated partially within the lamina fibroreticularis and partially within the lamina lucida. Immunofluorescence showed positive staining for type VII collagen and discontinuous staining for type IV collagen in stromal beds. Discontinuous linear staining for types IV and VII collagens was observed in epithelial flaps. Staining for integrins alpha(6) and beta(4) was positive in some regions and discontinuous in other regions of epithelial flaps. In stromal beds, integrins alpha(6) and beta(4) had a patchy expression pattern. Staining for laminin 5 was intermittently positive along the basal side of epithelial flaps and stromal beds. CONCLUSIONS Epithelial flaps created with an epikeratome were mechanically separated partly within the lamina fibroreticularis and partly within the lamina lucida. Stromal beds had relatively smooth surfaces with no obvious trauma to Bowman layer.
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Affiliation(s)
- Takeshi Soma
- Department of Ophthalmology, Osaka University Medical School, Osaka, Japan
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