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Berger T, Flockerzi E, Berger M, Chai N, Stachon T, Szentmáry N, Seitz B. Expression of matrix metalloproteinases and their inhibitors in corneal stromal fibroblasts and keratocytes from healthy and keratoconus corneas. Graefes Arch Clin Exp Ophthalmol 2024:10.1007/s00417-024-06601-y. [PMID: 39177803 DOI: 10.1007/s00417-024-06601-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2024] [Revised: 07/20/2024] [Accepted: 07/26/2024] [Indexed: 08/24/2024] Open

Abstract

PURPOSE

To examine the in-vitro expression of matrix metalloproteinases (MMP) and tissue inhibitors of metalloproteinases (TIMP) in corneal stromal cells by distinguishing between fibroblasts and keratocytes of healthy and keratoconus (KC) corneas.

METHODS

Stromal cells were isolated from healthy and KC corneas (n = 8). A normal-glucose, serum-containing cell culture medium (NGSC-medium) was used for cultivation of healthy human corneal fibroblasts (HCFs) and KC human corneal fibroblasts (KC-HCFs). In order to obtain a keratocyte phenotype, the initial cultivation with NGSC-medium was changed to a low-glucose, serum-free cell culture medium for healthy (Keratocytes) and KC cells (KC-Keratocytes). Gene and protein expression of MMP-1, -2, -3, -7, -9 and TIMP-1, -2, -3 were measured by quantitative PCR and Enzyme-Linked Immunosorbent Assay (ELISA) from the cell culture supernatant.

RESULTS

KC-HCFs demonstrated a lower mRNA gene expression for MMP-2 compared to HCFs. In contrast to their respective fibroblast groups (either HCFs or KC-HCFs), Keratocytes showed a higher mRNA gene expression of TIMP-3, whereas TIMP-1 mRNA gene expression was lower in Keratocytes and KC-Keratocytes. Protein analysis of the cell culture supernatant revealed lower concentrations of MMP-1 in KC-HCFs compared to HCFs. Compared to Keratocytes, TIMP-1 concentrations was lower in the cell culture supernatant of KC-Keratocytes. In HCFs and KC-HCFs, protein levels of MMP-1 and TIMP-1 were higher and MMP-2 was lower compared to Keratocytes and KC-Keratocytes, respectively.

CONCLUSION

This study indicates an imbalance in MMP and TIMP expression between healthy and diseased cells. Furthermore, differences in the expression of MMPs and TIMPs exist between corneal fibroblasts and keratocytes, which could influence the specific proteolytic metabolism in-vivo and contribute to the progression of KC.

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Sara M, Hui A, Yasir M, Peguda HK, Kalaiselvan P, Willcox M. Intrastromal Corneal Ring Implants Associated Bacterial Infections. Curr Eye Res 2024:1-9. [PMID: 38780797 DOI: 10.1080/02713683.2024.2354438] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2024] [Accepted: 05/07/2024] [Indexed: 05/25/2024]

Abstract

PURPOSE

This study examines the incidence of infection and resistance associated with Intracorneal Ring Segment (ICRS) implantation, a common outpatient surgical treatment for correcting refractive errors and corneal ectatic diseases. Although ICRS procedures are typically safe and reversible, there is a low but notable risk of microbial infections, which require prompt and sometimes invasive treatment.

METHODS

Three electronic databases, PubMed, Web of Science (WoS), and Scopus, were utilised to search for literature according to PRISMA guidelines to identify infections related to the implantation of ICRS in the cornea between January 2000 and December 2022.

RESULTS

Gram-positive organisms were involved in 86% of cases: 35.7% S. aureus, 25% coagulase-negative staphylococci species, 17.8% streptococci and 7.1% Nocardia species. Less commonly recorded were Gram-negative bacteria (14%), with Pseudomonas aeruginosa (circa 10%) and Klebsiella pneumonia (4%) being the most common Gram-negative bacteria. In rare cases, fungi have also been reported. ICRS-related bacterial infections can be categorised into early or late onset. Early onset infection typically manifests within the first few weeks after implantation and is often associated with contamination during surgery, unhygienic practices, or inadequate sterilisation techniques. On the other hand, late-onset infection may develop months or even years after the initial procedures and may be associated with persistent bacterial colonisation, secondary infections, or prolonged use of prophylactic antibiotics. S aureus is encountered in both early and late-onset infections, while Nocardia species and K. pneumoniae have generally been reported to occur in late-onset infections. In addition, vision recovery from S. aureus infections tends to be poor compared to other bacterial infections.

CONCLUSION

S. aureus is a predominant pathogen that often requires surgical intervention with poor outcomes. Early infections result from incision gaps and ring segment rubbing, while late infections are linked to prolonged antibiotic use. Further research is needed on novel antimicrobial ICRS to procure the vision.

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Nasrat MM, Abdelsalam AM, Goily MB, Eldib AA, Hegazy GA. Keratometric Outcomes after Simultaneous versus Sequential Intracorneal Ring Segment Implantation with Femtosecond Laser and Corneal Collagen Crosslinking in Egyptian Patients with Keratoconus and Ectasia. J Microsc Ultrastruct 2024;12:35-42. [PMID: 38633569 PMCID: PMC11019591 DOI: 10.4103/jmau.jmau_80_21] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2021] [Accepted: 10/07/2021] [Indexed: 11/04/2022] Open

Shetty R, Mahendran K, Joshi PD, Jeyabalan N, Jayadev C, Das D. Corneal stromal regeneration-keratoconus cell therapy: a review. Graefes Arch Clin Exp Ophthalmol 2023;261:3051-3065. [PMID: 37074409 DOI: 10.1007/s00417-023-06064-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2023] [Revised: 03/28/2023] [Accepted: 04/05/2023] [Indexed: 04/20/2023] Open

González-Atienza C, Sánchez-Cazorla E, Villoldo-Fernández N, del Hierro A, Boto A, Guerrero-Carretero M, Nieves-Moreno M, Arruti N, Rodríguez-Solana P, Mena R, Rodríguez-Jiménez C, Rosa-Pérez I, Acal JC, Blasco J, Naranjo-Castresana M, Ruz-Caracuel B, Montaño VEF, Ortega Patrón C, Rubio-Martín ME, García-Fernández L, Rikeros-Orozco E, Gómez-Cano MDLÁ, Delgado-Mora L, Noval S, Vallespín E. Whole-Exome Sequencing of 24 Spanish Families: Candidate Genes for Non-Syndromic Pediatric Keratoconus. Genes (Basel) 2023;14:1838. [PMID: 37895187 PMCID: PMC10606385 DOI: 10.3390/genes14101838] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2023] [Revised: 09/19/2023] [Accepted: 09/20/2023] [Indexed: 10/29/2023] Open

Affiliation(s)

Carmen González-Atienza Molecular Ophthalmology Section, Medical and Molecular Genetics Institute (INGEMM) IdiPaz, Hospital Universitario La Paz, 28046 Madrid, Spain; (C.G.-A.); (E.S.-C.); (P.R.-S.); (R.M.); (C.R.-J.); (V.E.F.M.); (C.O.P.); (M.E.R.-M.); (L.G.-F.)
Eloísa Sánchez-Cazorla Molecular Ophthalmology Section, Medical and Molecular Genetics Institute (INGEMM) IdiPaz, Hospital Universitario La Paz, 28046 Madrid, Spain; (C.G.-A.); (E.S.-C.); (P.R.-S.); (R.M.); (C.R.-J.); (V.E.F.M.); (C.O.P.); (M.E.R.-M.); (L.G.-F.)
Natalia Villoldo-Fernández Department of Pediatric Ophthalmology, IdiPaz, Hospital Universitario La Paz, 28046 Madrid, Spain; (N.V.-F.); (A.d.H.); (A.B.); (M.G.-C.); (N.A.); (I.R.-P.); (J.C.A.); (J.B.); (M.N.-C.); (S.N.)
Almudena del Hierro Department of Pediatric Ophthalmology, IdiPaz, Hospital Universitario La Paz, 28046 Madrid, Spain; (N.V.-F.); (A.d.H.); (A.B.); (M.G.-C.); (N.A.); (I.R.-P.); (J.C.A.); (J.B.); (M.N.-C.); (S.N.) European Reference Network on Eye Diseases (ERN-EYE), Hospital Universitario La Paz, 28046 Madrid, Spain
Ana Boto Department of Pediatric Ophthalmology, IdiPaz, Hospital Universitario La Paz, 28046 Madrid, Spain; (N.V.-F.); (A.d.H.); (A.B.); (M.G.-C.); (N.A.); (I.R.-P.); (J.C.A.); (J.B.); (M.N.-C.); (S.N.) European Reference Network on Eye Diseases (ERN-EYE), Hospital Universitario La Paz, 28046 Madrid, Spain
Marta Guerrero-Carretero Department of Pediatric Ophthalmology, IdiPaz, Hospital Universitario La Paz, 28046 Madrid, Spain; (N.V.-F.); (A.d.H.); (A.B.); (M.G.-C.); (N.A.); (I.R.-P.); (J.C.A.); (J.B.); (M.N.-C.); (S.N.)
María Nieves-Moreno Department of Pediatric Ophthalmology, IdiPaz, Hospital Universitario La Paz, 28046 Madrid, Spain; (N.V.-F.); (A.d.H.); (A.B.); (M.G.-C.); (N.A.); (I.R.-P.); (J.C.A.); (J.B.); (M.N.-C.); (S.N.) European Reference Network on Eye Diseases (ERN-EYE), Hospital Universitario La Paz, 28046 Madrid, Spain
Natalia Arruti Department of Pediatric Ophthalmology, IdiPaz, Hospital Universitario La Paz, 28046 Madrid, Spain; (N.V.-F.); (A.d.H.); (A.B.); (M.G.-C.); (N.A.); (I.R.-P.); (J.C.A.); (J.B.); (M.N.-C.); (S.N.) European Reference Network on Eye Diseases (ERN-EYE), Hospital Universitario La Paz, 28046 Madrid, Spain
Patricia Rodríguez-Solana Molecular Ophthalmology Section, Medical and Molecular Genetics Institute (INGEMM) IdiPaz, Hospital Universitario La Paz, 28046 Madrid, Spain; (C.G.-A.); (E.S.-C.); (P.R.-S.); (R.M.); (C.R.-J.); (V.E.F.M.); (C.O.P.); (M.E.R.-M.); (L.G.-F.)
Rocío Mena Molecular Ophthalmology Section, Medical and Molecular Genetics Institute (INGEMM) IdiPaz, Hospital Universitario La Paz, 28046 Madrid, Spain; (C.G.-A.); (E.S.-C.); (P.R.-S.); (R.M.); (C.R.-J.); (V.E.F.M.); (C.O.P.); (M.E.R.-M.); (L.G.-F.) Biomedical Research Center in the Rare Diseases Network (CIBERER), Carlos II Health Institute (ISCIII), 28029 Madrid, Spain; (B.R.-C.); (E.R.-O.); (L.D.-M.)
Carmen Rodríguez-Jiménez Molecular Ophthalmology Section, Medical and Molecular Genetics Institute (INGEMM) IdiPaz, Hospital Universitario La Paz, 28046 Madrid, Spain; (C.G.-A.); (E.S.-C.); (P.R.-S.); (R.M.); (C.R.-J.); (V.E.F.M.); (C.O.P.); (M.E.R.-M.); (L.G.-F.)
Irene Rosa-Pérez Department of Pediatric Ophthalmology, IdiPaz, Hospital Universitario La Paz, 28046 Madrid, Spain; (N.V.-F.); (A.d.H.); (A.B.); (M.G.-C.); (N.A.); (I.R.-P.); (J.C.A.); (J.B.); (M.N.-C.); (S.N.)
Juan Carlos Acal Department of Pediatric Ophthalmology, IdiPaz, Hospital Universitario La Paz, 28046 Madrid, Spain; (N.V.-F.); (A.d.H.); (A.B.); (M.G.-C.); (N.A.); (I.R.-P.); (J.C.A.); (J.B.); (M.N.-C.); (S.N.)
Joana Blasco Department of Pediatric Ophthalmology, IdiPaz, Hospital Universitario La Paz, 28046 Madrid, Spain; (N.V.-F.); (A.d.H.); (A.B.); (M.G.-C.); (N.A.); (I.R.-P.); (J.C.A.); (J.B.); (M.N.-C.); (S.N.)
Marta Naranjo-Castresana Department of Pediatric Ophthalmology, IdiPaz, Hospital Universitario La Paz, 28046 Madrid, Spain; (N.V.-F.); (A.d.H.); (A.B.); (M.G.-C.); (N.A.); (I.R.-P.); (J.C.A.); (J.B.); (M.N.-C.); (S.N.)
Beatriz Ruz-Caracuel Biomedical Research Center in the Rare Diseases Network (CIBERER), Carlos II Health Institute (ISCIII), 28029 Madrid, Spain; (B.R.-C.); (E.R.-O.); (L.D.-M.) Clinical Bioinformatics Section, Medical and Molecular Genetics Institute (INGEMM) IdiPaz, CIBERER, Hospital Universitario La Paz, 28046 Madrid, Spain
Victoria E. F. Montaño Molecular Ophthalmology Section, Medical and Molecular Genetics Institute (INGEMM) IdiPaz, Hospital Universitario La Paz, 28046 Madrid, Spain; (C.G.-A.); (E.S.-C.); (P.R.-S.); (R.M.); (C.R.-J.); (V.E.F.M.); (C.O.P.); (M.E.R.-M.); (L.G.-F.) Biomedical Research Center in the Rare Diseases Network (CIBERER), Carlos II Health Institute (ISCIII), 28029 Madrid, Spain; (B.R.-C.); (E.R.-O.); (L.D.-M.)
Cristina Ortega Patrón Molecular Ophthalmology Section, Medical and Molecular Genetics Institute (INGEMM) IdiPaz, Hospital Universitario La Paz, 28046 Madrid, Spain; (C.G.-A.); (E.S.-C.); (P.R.-S.); (R.M.); (C.R.-J.); (V.E.F.M.); (C.O.P.); (M.E.R.-M.); (L.G.-F.)
M. Esther Rubio-Martín Molecular Ophthalmology Section, Medical and Molecular Genetics Institute (INGEMM) IdiPaz, Hospital Universitario La Paz, 28046 Madrid, Spain; (C.G.-A.); (E.S.-C.); (P.R.-S.); (R.M.); (C.R.-J.); (V.E.F.M.); (C.O.P.); (M.E.R.-M.); (L.G.-F.)
Laura García-Fernández Molecular Ophthalmology Section, Medical and Molecular Genetics Institute (INGEMM) IdiPaz, Hospital Universitario La Paz, 28046 Madrid, Spain; (C.G.-A.); (E.S.-C.); (P.R.-S.); (R.M.); (C.R.-J.); (V.E.F.M.); (C.O.P.); (M.E.R.-M.); (L.G.-F.)
Emi Rikeros-Orozco Biomedical Research Center in the Rare Diseases Network (CIBERER), Carlos II Health Institute (ISCIII), 28029 Madrid, Spain; (B.R.-C.); (E.R.-O.); (L.D.-M.) Clinical Genetics Section, Medical and Molecular Genetics Institute (INGEMM) IdiPaz, CIBERER, Hospital Universitario La Paz, 28046 Madrid, Spain;
María de Los Ángeles Gómez-Cano Clinical Genetics Section, Medical and Molecular Genetics Institute (INGEMM) IdiPaz, CIBERER, Hospital Universitario La Paz, 28046 Madrid, Spain;
Luna Delgado-Mora Biomedical Research Center in the Rare Diseases Network (CIBERER), Carlos II Health Institute (ISCIII), 28029 Madrid, Spain; (B.R.-C.); (E.R.-O.); (L.D.-M.) Clinical Genetics Section, Medical and Molecular Genetics Institute (INGEMM) IdiPaz, CIBERER, Hospital Universitario La Paz, 28046 Madrid, Spain;
Susana Noval Department of Pediatric Ophthalmology, IdiPaz, Hospital Universitario La Paz, 28046 Madrid, Spain; (N.V.-F.); (A.d.H.); (A.B.); (M.G.-C.); (N.A.); (I.R.-P.); (J.C.A.); (J.B.); (M.N.-C.); (S.N.) European Reference Network on Eye Diseases (ERN-EYE), Hospital Universitario La Paz, 28046 Madrid, Spain
Elena Vallespín Molecular Ophthalmology Section, Medical and Molecular Genetics Institute (INGEMM) IdiPaz, Hospital Universitario La Paz, 28046 Madrid, Spain; (C.G.-A.); (E.S.-C.); (P.R.-S.); (R.M.); (C.R.-J.); (V.E.F.M.); (C.O.P.); (M.E.R.-M.); (L.G.-F.) European Reference Network on Eye Diseases (ERN-EYE), Hospital Universitario La Paz, 28046 Madrid, Spain Biomedical Research Center in the Rare Diseases Network (CIBERER), Carlos II Health Institute (ISCIII), 28029 Madrid, Spain; (B.R.-C.); (E.R.-O.); (L.D.-M.)

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Sozer O, Ozalp O, Atalay E, Demir SS, Alatas İO, Yildirim N. Comparison of blood levels of vitamin B12, folic acid, riboflavin, and homocysteine in keratoconus and healthy subjects. J Cataract Refract Surg 2023;49:589-594. [PMID: 36745841 DOI: 10.1097/j.jcrs.0000000000001160] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2022] [Accepted: 01/30/2023] [Indexed: 02/08/2023]

Cano-Gómez LE, Casillas-Casillas E, Andrade-Lozano P, Ventura-Juárez J, Barba-Gallardo LF. Animal model of corneal ectasia in rabbits by intrastromal injection of type II collagenase. ARCHIVOS DE LA SOCIEDAD ESPANOLA DE OFTALMOLOGIA 2023;98:206-212. [PMID: 36871853 DOI: 10.1016/j.oftale.2023.03.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/17/2022] [Accepted: 01/17/2023] [Indexed: 03/07/2023]

Regueiro U, López-López M, Varela-Fernández R, Sobrino T, Diez-Feijoo E, Lema I. Immunomodulatory Effect of Human Lactoferrin on Toll-like Receptors 2 Expression as Therapeutic Approach for Keratoconus. Int J Mol Sci 2022;23:ijms232012350. [PMID: 36293206 PMCID: PMC9604127 DOI: 10.3390/ijms232012350] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2022] [Revised: 10/07/2022] [Accepted: 10/08/2022] [Indexed: 11/07/2022] Open

Affiliation(s)

Uxía Regueiro Corneal Neurodegeneration Group (RENOIR), Clinical Neurosciences Research Laboratory (LINC), Health Research Institute of Santiago de Compostela (IDIS), 15706 Santiago de Compostela, Spain Department of Surgery and Medical-Surgical Specialties, Faculty of Optics and Optometry, University of Santiago de Compostela (USC), 15705 Santiago de Compostela, Spain Correspondence: (U.R.); (I.L.); Tel.: +34-981951086 (U.R. & I.L.)
Maite López-López Corneal Neurodegeneration Group (RENOIR), Clinical Neurosciences Research Laboratory (LINC), Health Research Institute of Santiago de Compostela (IDIS), 15706 Santiago de Compostela, Spain Department of Surgery and Medical-Surgical Specialties, Faculty of Optics and Optometry, University of Santiago de Compostela (USC), 15705 Santiago de Compostela, Spain
Rubén Varela-Fernández Corneal Neurodegeneration Group (RENOIR), Clinical Neurosciences Research Laboratory (LINC), Health Research Institute of Santiago de Compostela (IDIS), 15706 Santiago de Compostela, Spain Department of Pharmacology, Pharmacy and Pharmaceutical Technology, University of Santiago de Compostela (USC), 15705 Santiago de Compostela, Spain
Tomás Sobrino NeuroAging Laboratory (NEURAL), Clinical Neurosciences Research Laboratory (LINC), Health Research Institute of Santiago de Compostela (IDIS), 15706 Santiago de Compostela, Spain
Elio Diez-Feijoo Corneal Neurodegeneration Group (RENOIR), Clinical Neurosciences Research Laboratory (LINC), Health Research Institute of Santiago de Compostela (IDIS), 15706 Santiago de Compostela, Spain Department of Surgery and Medical-Surgical Specialties, Faculty of Optics and Optometry, University of Santiago de Compostela (USC), 15705 Santiago de Compostela, Spain Galician Institute of Ophthalmology (INGO), Conxo Provincial Hospital, 15706 Santiago de Compostela, Spain
Isabel Lema Corneal Neurodegeneration Group (RENOIR), Clinical Neurosciences Research Laboratory (LINC), Health Research Institute of Santiago de Compostela (IDIS), 15706 Santiago de Compostela, Spain Department of Surgery and Medical-Surgical Specialties, Faculty of Optics and Optometry, University of Santiago de Compostela (USC), 15705 Santiago de Compostela, Spain Galician Institute of Ophthalmology (INGO), Conxo Provincial Hospital, 15706 Santiago de Compostela, Spain Correspondence: (U.R.); (I.L.); Tel.: +34-981951086 (U.R. & I.L.)

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Lozano V, Martín C, Blanco N, Alcalde I, Fernandez-Vega Cueto L, Merayo-Lloves J, Quirós LM. Exosomes Released by Corneal Stromal Cells Show Molecular Alterations in Keratoconus Patients and Induce Different Cellular Behavior. Biomedicines 2022;10:biomedicines10102348. [PMID: 36289615 PMCID: PMC9598276 DOI: 10.3390/biomedicines10102348] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2022] [Revised: 09/19/2022] [Accepted: 09/19/2022] [Indexed: 11/23/2022] Open

Affiliation(s)

Víctor Lozano Department of Functional Biology, University of Oviedo, 33006 Oviedo, Spain; (V.L.); (C.M.); (N.B.) Instituto Universitario Fernández-Vega, Fundación de Investigación Oftalmológica, University of Oviedo, 33012 Oviedo, Spain; Instituto de Investigación Sanitaria del Principado de Asturias (ISPA), 33011 Oviedo, Spain
Carla Martín Department of Functional Biology, University of Oviedo, 33006 Oviedo, Spain; (V.L.); (C.M.); (N.B.) Instituto Universitario Fernández-Vega, Fundación de Investigación Oftalmológica, University of Oviedo, 33012 Oviedo, Spain; Instituto de Investigación Sanitaria del Principado de Asturias (ISPA), 33011 Oviedo, Spain
Noelia Blanco Department of Functional Biology, University of Oviedo, 33006 Oviedo, Spain; (V.L.); (C.M.); (N.B.) Instituto Universitario Fernández-Vega, Fundación de Investigación Oftalmológica, University of Oviedo, 33012 Oviedo, Spain; Instituto de Investigación Sanitaria del Principado de Asturias (ISPA), 33011 Oviedo, Spain
Ignacio Alcalde Instituto Universitario Fernández-Vega, Fundación de Investigación Oftalmológica, University of Oviedo, 33012 Oviedo, Spain; Instituto de Investigación Sanitaria del Principado de Asturias (ISPA), 33011 Oviedo, Spain
Luis Fernandez-Vega Cueto Instituto Universitario Fernández-Vega, Fundación de Investigación Oftalmológica, University of Oviedo, 33012 Oviedo, Spain; Correspondence: (L.F.-V.C.); (J.M.-L.); (L.M.Q.); Tel.: +34-985240141 (L.F.-V.C.); +34-985240141 (J.M.-L.); +34-985103560 (L.M.Q.)
Jesús Merayo-Lloves Instituto Universitario Fernández-Vega, Fundación de Investigación Oftalmológica, University of Oviedo, 33012 Oviedo, Spain; Instituto de Investigación Sanitaria del Principado de Asturias (ISPA), 33011 Oviedo, Spain Correspondence: (L.F.-V.C.); (J.M.-L.); (L.M.Q.); Tel.: +34-985240141 (L.F.-V.C.); +34-985240141 (J.M.-L.); +34-985103560 (L.M.Q.)
Luis M. Quirós Department of Functional Biology, University of Oviedo, 33006 Oviedo, Spain; (V.L.); (C.M.); (N.B.) Instituto Universitario Fernández-Vega, Fundación de Investigación Oftalmológica, University of Oviedo, 33012 Oviedo, Spain; Instituto de Investigación Sanitaria del Principado de Asturias (ISPA), 33011 Oviedo, Spain Correspondence: (L.F.-V.C.); (J.M.-L.); (L.M.Q.); Tel.: +34-985240141 (L.F.-V.C.); +34-985240141 (J.M.-L.); +34-985103560 (L.M.Q.)

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Goñi N, Martínez-Soroa I, Ibarrondo O, Azkargorta M, Elortza F, Galarreta DJ, Acera A. Tear proteome profile in eyes with keratoconus after intracorneal ring segment implantation or corneal crosslinking. Front Med (Lausanne) 2022;9:944504. [PMID: 36203781 PMCID: PMC9531826 DOI: 10.3389/fmed.2022.944504] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2022] [Accepted: 08/23/2022] [Indexed: 11/13/2022] Open

Abstract PurposeKeratoconus (KC) is a corneal ectasia characterized by structural changes, resulting in progressive thinning and biomechanical weakening that can lead to worsening visual acuity due to irregular astigmatism. Corneal collagen Crosslinking (CXL) and Intracorneal Ring Segment (ICRS) are widely used treatments in KC disease, but the alterations they cause in biomechanical mediators are still poorly understood. The aim of this study was to analyze the tear proteome profile before and after treatments to identify biomarkers altered by surgery.Materials and methodsAn observational, prospective, case-control pilot study was conducted, analyzing tear samples from KC patients by nano-liquid chromatography-mass spectrometry (nLC-MS/MS). Data are available via ProteomeXchange with identifier PXD035655. Patients with KC who underwent ICRS surgery (n = 4), CXL (n = 4), and healthy subjects (Ctrl, n = 4) were included in this study. Clinical parameters were measured and tear samples were collected before and 18 months after surgery. Proteins with ≥2 expression change and p-value < 0.05 between groups and times were selected to study their role in post-operative corneal changes.ResultsThese analyses led to the identification of 447 tear proteins, some of which were dysregulated in KC patients. In comparisons between the two surgical groups and Ctrls, the biological processes that were altered in KC patients at baseline were those that were dysregulated as a consequence of the disease and not of the surgical intervention. Among the biological processes seen to be altered were: immune responses, cytoskeleton components, protein synthesis and metabolic reactions. When comparing the two treatment groups (ICRS and CXL), the process related to cytoskeleton components was the most altered, probably due to corneal thinning which was more pronounced in patients undergoing CXL.ConclusionThe changes observed in tears after 18 months post-operatively could be due to the treatments performed and the pathology. Among the deregulated proteins detected, A-kinase anchor protein 13 (AKAP-13) deserves special attention for its involvement in corneal thinning, and for its strong overexpression in the tears of patients with more active KC and faster disease progression. However, it should be kept in mind that this is a pilot study conducted in a small number of patients. Collapse

Deep Anterior Lamellar Keratoplasty and Penetrating Keratoplasty for Keratoconus: A Claims-Based Analysis. Cornea 2022;42:663-669. [PMID: 37146289 DOI: 10.1097/ico.0000000000003072] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2022] [Accepted: 04/11/2022] [Indexed: 11/25/2022]

Influence of interleukin 17 A and 17 F polymorphisms in keratoconus. Mol Biol Rep 2021;48:7165-7170. [PMID: 34554386 DOI: 10.1007/s11033-021-06708-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2021] [Accepted: 09/13/2021] [Indexed: 01/13/2023]

Navel V, Malecaze J, Pereira B, Baker JS, Malecaze F, Sapin V, Chiambaretta F, Dutheil F. Oxidative and antioxidative stress markers in keratoconus: a systematic review and meta-analysis. Acta Ophthalmol 2021;99:e777-e794. [PMID: 33354927 DOI: 10.1111/aos.14714] [Citation(s) in RCA: 27] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2020] [Accepted: 11/20/2020] [Indexed: 12/13/2022]

Affiliation(s)

Valentin Navel Ophthalmology CHU Clermont‐Ferrand University Hospital of Clermont‐Ferrand Clermont‐Ferrand France Genetic Reproduction and Development Laboratory (GReD) Translational Approach to Epithelial Injury and Repair Team CNRS UMR 6293 INSERM U1103 Université Clermont Auvergne Clermont‐Ferrand France
Jean Malecaze Ophthalmology CHU Clermont‐Ferrand University Hospital of Clermont‐Ferrand Clermont‐Ferrand France Genetic Reproduction and Development Laboratory (GReD) Translational Approach to Epithelial Injury and Repair Team CNRS UMR 6293 INSERM U1103 Université Clermont Auvergne Clermont‐Ferrand France
Bruno Pereira Clinical Research and Innovation Direction CHU Clermont–Ferrand University Hospital of Clermont Ferrand Clermont‐Ferrand France
Julien S. Baker Department of Sport, Physical Education and Health Centre for Health and Exercise Science Research Hong Kong Baptist University Kowloon Tong Hong Kong
François Malecaze Ophthalmology Department Pierre‐Paul Riquet Hospital University Hospital of Toulouse Toulouse France
Vincent Sapin Genetic Reproduction and Development Laboratory (GReD) Translational Approach to Epithelial Injury and Repair Team CNRS UMR 6293 INSERM U1103 Université Clermont Auvergne Clermont‐Ferrand France Medical Biochemistry and Molecular Biology CHU Clermont‐Ferrand University Hospital of Clermont‐Ferrand Clermont‐Ferrand France
Frédéric Chiambaretta Ophthalmology CHU Clermont‐Ferrand University Hospital of Clermont‐Ferrand Clermont‐Ferrand France Genetic Reproduction and Development Laboratory (GReD) Translational Approach to Epithelial Injury and Repair Team CNRS UMR 6293 INSERM U1103 Université Clermont Auvergne Clermont‐Ferrand France
Frédéric Dutheil Preventive and Occupational Medicine CNRS, LaPSCo Physiological and Psychosocial Stress CHU Clermont‐Ferrand Université Clermont Auvergne University Hospital of Clermont‐Ferrand Clermont‐Ferrand France

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Kazaili A, Abdul-Amir Al-Hindy H, Madine J, Akhtar R. Nano-Scale Stiffness and Collagen Fibril Deterioration: Probing the Cornea Following Enzymatic Degradation Using Peakforce-QNM AFM. SENSORS 2021;21:s21051629. [PMID: 33652583 PMCID: PMC7956234 DOI: 10.3390/s21051629] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/30/2020] [Revised: 02/05/2021] [Accepted: 02/18/2021] [Indexed: 11/16/2022]

Pinheiro-Costa J, Correia PJ, Pinto JV, Alves H, Torrão L, Moreira R, Falcão M, Carneiro Â, Madeira MD, Falcão-Reis F. Increased choroidal thickness is not a disease progression marker in keratoconus. Sci Rep 2020;10:19938. [PMID: 33203915 PMCID: PMC7673983 DOI: 10.1038/s41598-020-77122-x] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2020] [Accepted: 11/03/2020] [Indexed: 11/27/2022] Open

Song J, Li D, Shan Z, Kurskaya O, Sharshov K, Gao T, Bi H. Photocytotoxicity of white light-emitting diode irradiation on human lens epithelium and retinal pigment epithelium via the JNK and p38 MAPK signaling pathways. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY B-BIOLOGY 2020;213:112058. [PMID: 33147556 DOI: 10.1016/j.jphotobiol.2020.112058] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/14/2020] [Revised: 10/06/2020] [Accepted: 10/19/2020] [Indexed: 12/23/2022]

Lopes AG, de Almeida Júnior GC, Teixeira RM, de Mattos LC, Brandão de Mattos CC, Castiglioni L. Absence of the c.169+50delTAAACAG mutation of SOD1 gene in a sample of keratoconus patients in Brazilian population. BMC Res Notes 2020;13:328. [PMID: 32646478 PMCID: PMC7346509 DOI: 10.1186/s13104-020-05166-3] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2020] [Accepted: 06/30/2020] [Indexed: 01/02/2023] Open

Affiliation(s)

Alessandro Garcia Lopes Biology Department, Instituto de Biociências, Letras e Ciências Exatas, IBILCE-UNESP, Universidade Estadual Paulista "Júlio de Mesquita Filho,", Rua Cristóvão Colombo, 2265, São José do Rio Preto, São Paulo, 15054-000, Brazil.,Immunogenetics Laboratory, Molecular Biology Department, Faculdade de Medicina de São José do Rio Preto (FAMERP), Avenida Brigadeiro Faria Lima, 5416, Vila São Pedro, São José do Rio Preto, São Paulo, 15090-000, Brazil
Gildásio Castello de Almeida Júnior Ophthalmology Outpatient Clinic, Hospital de Base de São José do Rio Preto, Fundação Faculdade Regional de Medicina (HB-FUNFARME), Avenida Brigadeiro Faria Lima, 5544, São José do Rio Preto, São Paulo, 15090-000, Brazil
Ronan Marques Teixeira Biology Department, Instituto de Biociências, Letras e Ciências Exatas, IBILCE-UNESP, Universidade Estadual Paulista "Júlio de Mesquita Filho,", Rua Cristóvão Colombo, 2265, São José do Rio Preto, São Paulo, 15054-000, Brazil
Luiz Carlos de Mattos Immunogenetics Laboratory, Molecular Biology Department, Faculdade de Medicina de São José do Rio Preto (FAMERP), Avenida Brigadeiro Faria Lima, 5416, Vila São Pedro, São José do Rio Preto, São Paulo, 15090-000, Brazil
Cinara Cássia Brandão de Mattos Immunogenetics Laboratory, Molecular Biology Department, Faculdade de Medicina de São José do Rio Preto (FAMERP), Avenida Brigadeiro Faria Lima, 5416, Vila São Pedro, São José do Rio Preto, São Paulo, 15090-000, Brazil.
Lilian Castiglioni Biology Department, Instituto de Biociências, Letras e Ciências Exatas, IBILCE-UNESP, Universidade Estadual Paulista "Júlio de Mesquita Filho,", Rua Cristóvão Colombo, 2265, São José do Rio Preto, São Paulo, 15054-000, Brazil. .,Epidemiology and Health Department, Faculdade de Medicina de São José do Rio Preto (FAMERP), Avenida Brigadeiro Faria Lima, 5416, Vila São Pedro, São José do Rio Preto, São Paulo, 15090-000, Brazil.

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Svoboda KKH, Gordon MK. Extracellular matrix: The proteins that function throughout the body. Anat Rec (Hoboken) 2020;303:1509-1513. [PMID: 32421924 DOI: 10.1002/ar.24404] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2020] [Revised: 04/22/2020] [Accepted: 04/24/2020] [Indexed: 12/17/2022]