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Cohen D, Binenbaum G, El-Jack K, Spiller A, Yu Y, Ying GS, Jensen A, Scoles D. INCIDENCE AND RISK FACTORS FOR EXUDATIVE RETINAL DETACHMENT FOLLOWING LASER PHOTOCOAGULATION FOR RETINOPATHY OF PREMATURITY. Retina 2024; 44:288-294. [PMID: 37948737 DOI: 10.1097/iae.0000000000003983] [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: 08/04/2023] [Accepted: 10/21/2023] [Indexed: 11/12/2023]
Abstract
PURPOSE Exudative retinal detachment (ERD) may result from laser photocoagulation for retinopathy of prematurity. Although risk factors have been hypothesized from case reports, comparative studies have not been reported. We sought to evaluate risk factors for ERD following laser, comparing affected and unaffected infants. METHODS Retrospective cohort study of infants undergoing retinopathy of prematurity laser at the Children's Hospital of Philadelphia over 6 years. All received near-confluent laser of avascular retina. Demographic, medical, and procedural risk factors for ERD were evaluated in univariate analysis because of the rarity of ERD. RESULTS Among 149 lasered infants, 6 infants (4%, 95% confidence interval [CI] 1.5%-8.6%) developed ERD. Race was a significant risk factor ( P = 0.01). Among 71 African American or Hispanic infants, 6 (8.5%, 95% CI 3.2%-17.5%) developed ERD. Among 78 non-African American or Hispanic infants, 0 (0%, 95% CI 0%-4.6%) developed ERD. There were no significant differences in the other studied factors. CONCLUSION Exudative retinal detachment was uncommon (4%) following retinopathy of prematurity laser. Despite so few cases, darker pigmented race with likely increased pigmented fundi was significantly associated with an increased ERD risk. Further study may reveal whether increased choroidal pigment causes greater laser tissue damage or makes it difficult to discern the ora, resulting in inadvertent lasering of the ciliary body, leading to ERD.
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Affiliation(s)
- Devin Cohen
- The Children's Hospital of Philadelphia, Philadelphia, Pennsylvania; and
- Scheie Eye Institute, Department of Ophthalmology, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, Pennsylvania
| | - Gil Binenbaum
- The Children's Hospital of Philadelphia, Philadelphia, Pennsylvania; and
- Scheie Eye Institute, Department of Ophthalmology, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, Pennsylvania
| | - Khalid El-Jack
- The Children's Hospital of Philadelphia, Philadelphia, Pennsylvania; and
- Scheie Eye Institute, Department of Ophthalmology, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, Pennsylvania
| | - Alyssa Spiller
- The Children's Hospital of Philadelphia, Philadelphia, Pennsylvania; and
| | - Yinxi Yu
- Scheie Eye Institute, Department of Ophthalmology, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, Pennsylvania
| | - Gui-Shuang Ying
- Scheie Eye Institute, Department of Ophthalmology, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, Pennsylvania
| | - Anne Jensen
- The Children's Hospital of Philadelphia, Philadelphia, Pennsylvania; and
| | - Drew Scoles
- The Children's Hospital of Philadelphia, Philadelphia, Pennsylvania; and
- Scheie Eye Institute, Department of Ophthalmology, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, Pennsylvania
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Ebrahimi M, Gharravi AM, Aliyari R, Emamian MH, Khabazkhoob M, Hashemi H, Fotouhi A. The association between iris color and refractive errors in children. Sci Rep 2024; 14:2192. [PMID: 38272946 PMCID: PMC10810802 DOI: 10.1038/s41598-024-52807-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2023] [Accepted: 01/23/2024] [Indexed: 01/27/2024] Open
Abstract
This study aimed to evaluate the association between iris color and refractive errors in children aged 6-12 years. This cross-sectional study was based on data obtained from the first phase of the Shahroud Schoolchildren Eye Cohort Study. The target population was 6 to12 year-old students living in urban and rural areas. Iris colors were classified by comparing eye colors with close-up images of iris colors. Myopia was defined as a spherical equivalent (SE) ≤ - 0.5 diopter and hyperopia was defined as SE ≥ 2 diopter in cycloplegic refraction. The association of iris color with hyperopia and myopia was investigated by fitting two separate multiple logistic regression models adjusted for place of residence, age, sex, and times for outdoor activity and near work. Among the 5394 participates with the mean age of 9.7 year, the prevalence of myopia and hyperopia was 4.8% and 4.7% respectively. The number and proportion (in parentheses) of amber, light blue, light brown, dark brown, gray, green and hazel iris colors were 19(0.4%), 26(0.5%), 645(12.0%), 4517(83.7%), 4(0.1%), 59(1.1%), and 124(2.3%) respectively. Compared to dark brown, the odds ratios and 95% confidence intervals (in parentheses) of myopia were 4.8(1.2-18.7), 0.8(0.1-5.8), 1.0(0.7-1.5), 0.4(0.1-2.7) and 0.6(0.2-1.8) for amber, light blue, light brown, green and hazel iris colors in multiple logistic regression model. No significant association was observed between iris colors and hyperopia. This study shows that amber iris is significantly associated with higher odds of myopia. These children should be further monitored and examined. More studies with higher sample size in all iris colors are recommended.
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Affiliation(s)
- Mehrdad Ebrahimi
- Student Research Committee, School of Medicine, Shahroud University of Medical Sciences, Shahroud, Iran
| | | | - Roqayeh Aliyari
- Ophthalmic Epidemiology Research Center, Shahroud University of Medical Sciences, Shahroud, Iran
| | - Mohammad Hassan Emamian
- Ophthalmic Epidemiology Research Center, Shahroud University of Medical Sciences, Shahroud, Iran.
| | - Mehdi Khabazkhoob
- Department of Medical Surgical Nursing, School of Nursing and Midwifery, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Hassan Hashemi
- Noor Research Center for Ophthalmic Epidemiology, Noor Eye Hospital, Tehran, Iran
| | - Akbar Fotouhi
- Department of Epidemiology and Biostatistics, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
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Miao Y, Jung H, Hsu D, Song J, Ni S, Ma D, Jian Y, Makita S, Yasuno Y, Sarunic MV, Stephenson KAJ, Paton K, Mammo Z, Ju MJ. Polarization-Diversity Optical Coherence Tomography Assessment of Choroidal Nevi. Invest Ophthalmol Vis Sci 2023; 64:6. [PMID: 37930688 PMCID: PMC10629548 DOI: 10.1167/iovs.64.14.6] [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: 03/30/2023] [Accepted: 10/09/2023] [Indexed: 11/07/2023] Open
Abstract
Purpose The purpose of this study was to demonstrate the utility of polarization-diversity optical coherence tomography (PD-OCT), a noninvasive imaging technique with melanin-specific contrast, in the quantitative and qualitative assessment of choroidal nevi. Methods Nevi were imaged with a custom-built 55-degree field-of-view (FOV) 400 kHz PD-OCT system. Imaging features on PD-OCT were compared to those on fundus photography, auto-fluorescence, ultrasound, and non-PD-OCT images. Lesions were manually segmented for size measurement and metrics for objective assessment of melanin distributions were calculated, including degree of polarization uniformity (DOPU), attenuation coefficient, and melanin occupancy rate (MOR). Results We imaged 17 patients (mean age = 69.5 years, range = 37-90) with 11 pigmented, 3 non-pigmented, and 3 mixed pigmentation nevi. Nevi with full margin acquisition had an average longest basal diameter of 5.1 mm (range = 2.99-8.72 mm) and average height of 0.72 mm (range = 0.37 mm-2.09 mm). PD-OCT provided clear contrast of choroidal melanin content, distribution, and delineation of nevus margins for melanotic nevi. Pigmented nevi were found to have lower DOPU, higher attenuation coefficient, and higher MOR than non-pigmented lesions. Melanin content on PD-OCT was consistent with pigmentation on fundus in 15 of 17 nevi (88%). Conclusions PD-OCT allows objective assessment of choroidal nevi melanin content and distribution. In addition, melanin-specific contrast by PD-OCT enables clear nevus margin delineation and may improve serial growth surveillance. Further investigation is needed to determine the clinical significance and prognostic value of melanin characterization by PD-OCT in the evaluation of choroidal nevi.
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Affiliation(s)
- Yusi Miao
- Department of Ophthalmology and Visual Sciences, University of British Columbia, Vancouver, British Columbia, Canada
| | - Hoyoung Jung
- Faculty of Medicine, University of British Columbia, Vancouver, British Columbia, Canada
| | - Destiny Hsu
- School of Engineering Science, Simon Fraser University, Burnaby, British Columbia, Canada
| | - Jun Song
- School of Biomedical Engineering, University of British Columbia, Vancouver, British Columbia, Canada
| | - Shuibin Ni
- Case Eye Institute, Oregon Health & Science University, Portland, Oregon, United States
| | - Da Ma
- Gerontology and Geriatric Medicine, Wake Forest University School of Medicine, Winston-Salem, North Carolina, United States
| | - Yifan Jian
- Case Eye Institute, Oregon Health & Science University, Portland, Oregon, United States
| | - Shuichi Makita
- Faculty of Medicine, University of Tsukuba, Tsukuba, Ibaraki, Japan
| | - Yoshiaki Yasuno
- Faculty of Medicine, University of Tsukuba, Tsukuba, Ibaraki, Japan
| | - Marinko V. Sarunic
- School of Engineering Science, Simon Fraser University, Burnaby, British Columbia, Canada
- Department of Medical Physics and Biomedical Engineering, University College London, London, England, United Kingdom
- Institute of Ophthalmology, University College London, London, England, United Kingdom
| | - Kirk A. J. Stephenson
- Department of Ophthalmology and Visual Sciences, University of British Columbia, Vancouver, British Columbia, Canada
| | - Katherine Paton
- Department of Ophthalmology and Visual Sciences, University of British Columbia, Vancouver, British Columbia, Canada
| | - Zaid Mammo
- Department of Ophthalmology and Visual Sciences, University of British Columbia, Vancouver, British Columbia, Canada
| | - Myeong Jin Ju
- Department of Ophthalmology and Visual Sciences, University of British Columbia, Vancouver, British Columbia, Canada
- School of Biomedical Engineering, University of British Columbia, Vancouver, British Columbia, Canada
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Jha J, Singh MK, Singh L, Pushker N, Meel R, Lomi N, Bakhshi S, Nag TC, Chosdol K, Sen S, Kashyap S. Prognostic significance of melanogenesis pathway and its association with the ultrastructural characterisation of melanosomes in uveal melanoma. Br J Ophthalmol 2023:bjo-2023-323181. [PMID: 37734767 DOI: 10.1136/bjo-2023-323181] [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: 01/04/2023] [Accepted: 08/30/2023] [Indexed: 09/23/2023]
Abstract
BACKGROUND Pigmentation could be a relevant prognostic factor in uveal melanoma (UM) development. Microphthalmia-associated transcription factor (MITF) regulates melanin synthesis by activating tyrosinase-related protein 2 (TYRP2) and silver protein (SILV) that induce the melanogenesis pathway. Although their oncogenic potential has been observed in various malignancies but has not been investigated in UM Asian population. Our aim is to study the ultrastructure of melanosomes and the prognostic significance of pigmentation markers such as TYRP2, MITF and SILV in UM. METHODS Transmission electron microscopy was performed to compare the ultrastructure of melanosomes in the normal choroid and UM cases. Immunoexpression of TYRP2, SILV and MITF was analysed in 82 UM samples. The mRNA expression level of all genes was measured in 70 UM cases. A statistical correlation was performed to determine the prognostic significance of all markers. RESULTS Premelanosomes and mature melanosomes undergoing dedifferentiation were observed in high-pigmented UM cases as compared with low-pigmented UM cases. Seventy per cent of UM cases showed high SILV expression while TYRP2 and MITF expression was present in 58% and 56% of cases, respectively. At the mRNA level, upregulation of TYRP2, SILV and MITF markers was seen in around 50% of UM cases, which was statistically significant with high pigmentation. Reduced metastatic-free survival was statistically significant with the MITF protein expression. CONCLUSION Our results demonstrated that ultrastructural changes in melanosomes and high expression of TYRP2, MITF and SILV could dysregulate the melanogenesis pathway and might be responsible for the aggressive behaviour of UM.
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Affiliation(s)
- Jayanti Jha
- Ocular Pathology, All India Institute of Medical Sciences, New Delhi, Delhi, India
| | | | - Lata Singh
- Pediatrics, All India Institute of Medical Sciences, New Delhi, India
| | - Neelam Pushker
- Ophthalmology, All India Institute of Medical Sciences, New Delhi, Delhi, India
| | - Rachna Meel
- Ophthalmology, All India Institute of Medical Sciences, New Delhi, Delhi, India
| | - Neiwete Lomi
- Ophthalmology, All India Institute of Medical Sciences, New Delhi, Delhi, India
| | - Sameer Bakhshi
- Medical Oncology, All India Institute of Medical Sciences, New Delhi, India
| | - Tapas Chandra Nag
- Department of Anatomy, All India Institute of Medical Sciences, New Delhi, Delhi, India
| | - Kunzang Chosdol
- Biochemistry, All India Institute of Medical Sciences, New Delhi, Delhi, India
| | - Seema Sen
- Ocular Pathology, Dr.R.P. Centre, All India Institute of Medical Sciences, New Delhi, Delhi, India
| | - Seema Kashyap
- Ocular Pathology, All India Institute of Medical Sciences, New Delhi, Delhi, India
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Markiewicz A, Donizy P, Nowak M, Krzyziński M, Elas M, Płonka PM, Orłowska-Heitzmann J, Biecek P, Hoang MP, Romanowska-Dixon B. Amelanotic Uveal Melanomas Evaluated by Indirect Ophthalmoscopy Reveal Better Long-Term Prognosis Than Pigmented Primary Tumours-A Single Centre Experience. Cancers (Basel) 2022; 14:cancers14112753. [PMID: 35681733 PMCID: PMC9179456 DOI: 10.3390/cancers14112753] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2022] [Revised: 05/25/2022] [Accepted: 05/30/2022] [Indexed: 02/01/2023] Open
Abstract
(1) Background: There is a constant search for new prognostic factors that would allow us to accurately determine the prognosis, select the type of treatment, and monitor the patient diagnosed with uveal melanoma in a minimally invasive and easily accessible way. Therefore, we decided to evaluate the prognostic role of its pigmentation in a clinical assessment. (2) Methods: The pigmentation of 154 uveal melanomas was assessed by indirect ophthalmoscopy. Two groups of tumours were identified: amelanotic and pigmented. The statistical relationships between these two groups and clinical, pathological parameters and the long-term survival rate were analyzed. (3) Results: There were 16.9% amelanotic tumours among all and they occurred in younger patients (p = 0.022). In pigmented melanomas, unfavourable prognostic features such as: epithelioid cells (p = 0.0013), extrascleral extension (p = 0.027), macronucleoli (p = 0.0065), and the absence of BAP1 expression (p = 0.029) were statistically more frequently observed. Kaplan−Meier analysis demonstrated significantly better overall (p = 0.017) and disease-free (p < 0.001) survival rates for patients with amelanotic tumours. However, this relationship was statistically significant for lower stage tumours (AJCC stage II), and was not present in larger and more advanced stages (AJCC stage III). (4) Conclusions: The results obtained suggested that the presence of pigmentation in uveal melanoma by indirect ophthalmoscopy was associated with a worse prognosis, compared to amelanotic lesions. These findings could be useful in the choice of therapeutic and follow-up options in the future.
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Affiliation(s)
- Anna Markiewicz
- Department of Ophthalmology and Ocular Oncology, Faculty of Medicine, Jagiellonian University Medical College, 31-501 Krakow, Poland;
- Department of Ophthalmology and Ocular Oncology, University Hospital, 31-501 Krakow, Poland;
- Correspondence: or ; Tel.: +48-124247540; Fax: +48-124247563
| | - Piotr Donizy
- Department of Clinical and Experimental Pathology, Division of Clinical Pathology, Wroclaw Medical University, 50-556 Wroclaw, Poland;
| | - Monika Nowak
- Department of Ophthalmology and Ocular Oncology, University Hospital, 31-501 Krakow, Poland;
| | - Mateusz Krzyziński
- Faculty of Mathematics and Information Science, Warsaw University of Technology, 00-628 Warsaw, Poland; (M.K.); (P.B.)
| | - Martyna Elas
- Department of Biophysics and Cancer Biology, Faculty of Biochemistry, Biophysics and Biotechnology, Jagiellonian University, 30-387 Krakow, Poland; (M.E.); (P.M.P.)
| | - Przemysław M. Płonka
- Department of Biophysics and Cancer Biology, Faculty of Biochemistry, Biophysics and Biotechnology, Jagiellonian University, 30-387 Krakow, Poland; (M.E.); (P.M.P.)
| | | | - Przemysław Biecek
- Faculty of Mathematics and Information Science, Warsaw University of Technology, 00-628 Warsaw, Poland; (M.K.); (P.B.)
| | - Mai P. Hoang
- Department of Pathology, Massachusetts General Hospital, Harvard Medical School, Boston, MA 02114, USA;
| | - Bożena Romanowska-Dixon
- Department of Ophthalmology and Ocular Oncology, Faculty of Medicine, Jagiellonian University Medical College, 31-501 Krakow, Poland;
- Department of Ophthalmology and Ocular Oncology, University Hospital, 31-501 Krakow, Poland;
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Hyperreflective foci in the choroid of normal eyes. Graefes Arch Clin Exp Ophthalmol 2021; 260:759-769. [PMID: 34674030 DOI: 10.1007/s00417-021-05469-6] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2021] [Revised: 08/11/2021] [Accepted: 10/15/2021] [Indexed: 10/20/2022] Open
Abstract
PURPOSE To investigate hyperreflective choroidal foci (HCF) using en face swept-source optical coherence tomography (SS-OCT) and determine the factors that contribute to the distribution of HCF in normal eyes. METHODS In this retrospective study, we included healthy eyes with a normal fundus. HCF were defined as hyperreflective spots on en face SS-OCT images. The number, mean area, total area, and circularity of the HCF were compared with various choroid measurements obtained using SS-OCT, SS-OCT angiography, and fundus photography. RESULTS We investigated 51 eyes from 51 patients. The mean patient age was 56.0 ± 14.7 years, and 32 (62.7%) were female. The number and total area of HCF did not differ between the female and male patients and the right and left eyes. The number of HCF was correlated with the stromal area of the choroid (r = 0.291, P = 0.040) and subfoveal choroidal vascularity index (r = - 0.364, P = 0.009). The total area of HCF was correlated with the stromal area of the choroid (r = 0.283, P = 0.045). However, the number and total area of HCF were not correlated with age, degree of macular tessellation, subfoveal choroidal thickness, and choriocapillaris vascular density and flow void area. CONCLUSION HCF were observed in normal eyes, and their distribution was associated with the underlying stromal component of the choroid. The results of this study can be used as a reference for determining abnormal hyperreflective foci in the choroid of the eyes with various diseases.
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Souissi S, Le Mer Y, Metge F, Portmann A, Baudouin C, Labbé A, Hamard P. An update on continuous-wave cyclophotocoagulation (CW-CPC) and micropulse transscleral laser treatment (MP-TLT) for adult and paediatric refractory glaucoma. Acta Ophthalmol 2021; 99:e621-e653. [PMID: 33222409 DOI: 10.1111/aos.14661] [Citation(s) in RCA: 30] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2020] [Revised: 09/06/2020] [Accepted: 10/11/2020] [Indexed: 12/12/2022]
Abstract
PURPOSE Continuous-wave cyclophotocoagulation (CW-CPC) is often preferred to medical and surgical treatments for managing refractory glaucoma. This review summarizes diode CW-CPC indications, history, histopathology, methods, efficacy and safety. It also provides an overview of the latest data available on micropulse transscleral laser treatment (MP-TLT) that uses repetitive micropulses of diode laser energy in an off-and-on cyclical fashion. METHODS A literature review was conducted on transscleral CW-CPC (CW-TSCPC), endoscopic CPC (ECP) and MP-TLT. Relevant series of adult and paediatric patients were included for assessing the procedures. RESULTS Regarding CW-TCPC, highly variable success rates are reported in the literature, depending on the definition of success, type of underlying glaucoma, energy settings, follow-up duration and retreatment rates. CW-CPC often needs to be repeated, especially in paediatric patients. CW-CPC exposes to risks of inflammation and chronic ocular hypotony or phthisis with irreversible visual loss. CW-TSCPC has mainly been used in very severe forms of glaucoma, in painful eyes with limited visual potential or after filtering surgery failure. Published data on ECP are more limited but overall good success rates have been reported. Through the direct visualization of the targeted ciliary body in anatomically abnormal eyes, ECP is the preferred surgical procedure in paediatric refractory glaucoma. Complication rates are relatively low after ECP; however, large studies with long-term follow-up are needed. ECP may be used in difficult, refractory cases, but it is often used earlier when combined with cataract surgery. Despite limited data on the exact mechanism of action of MP-TLT and a lack of standardization of laser settings, the first data from heterogeneous case series shows that it has a similar efficacy and a better safety profile compared to CW-TSCPC in the medium term. CONCLUSION Although they may lead to sight-threatening complications, both CW-TSCPC and ECP seem effective. ECP appears to be superior to CW-TSCPC in paediatric refractory glaucoma. Unlike ECP combined with cataract surgery, evidence supporting a wider use of CW-TSCPC and MP-TLT in earlier stages of neuropathy is lacking. While it now appears that the safety profile of MP-TLT is superior to that of CW-CPC, robust prospective comparative studies including homogeneous and well-defined cohorts of patients are still needed to confirm an at least comparable efficacy in the long term.
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Affiliation(s)
- Soufiane Souissi
- Department of Vitreoretinal Surgery Adolphe de Rothschild Foundation Paris France
| | - Yannick Le Mer
- Department of Vitreoretinal Surgery Adolphe de Rothschild Foundation Paris France
| | - Florence Metge
- Department of Pediatric Ophthalmology Adolphe de Rothschild Foundation Paris France
| | - Alexandre Portmann
- Department of Pediatric Ophthalmology Adolphe de Rothschild Foundation Paris France
| | | | - Antoine Labbé
- Department of Ophthalmology III Quinze‐Vingts Hospital Paris France
| | - Pascale Hamard
- Department of Ophthalmology III Quinze‐Vingts Hospital Paris France
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Jha J, Singh MK, Singh L, Pushker N, Lomi N, Meel R, Chosdol K, Sen S, Bakhshi S, Kashyap S. Association of TYRP1 with hypoxia and its correlation with patient outcome in uveal melanoma. Clin Transl Oncol 2021; 23:1874-1884. [PMID: 33811629 DOI: 10.1007/s12094-021-02597-7] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2021] [Accepted: 03/12/2021] [Indexed: 11/30/2022]
Abstract
PURPOSE Molecular mechanisms of uveal melanoma development in association with high pigmentation are unclear. Tyrosinase Related Protein (TYRP1) is not only one of the important melanogenesis marker that contributes to melanin synthesis, but can also prevents the melanocyte death. The induction of melanogenesis leads to induction of HIF-1α which can affect the behavior of melanoma cells and its surrounding environment. The aim of our study was to determine the expression of TYRP1 and HIF-1α at the protein and RNA level and determine its prognostic significance. METHODS In the present study, the expression of TYRP1 and HIF-1α was investigated on 61 formalin-fixed paraffin-embedded choroidal melanoma samples by immunohistochemistry. Fresh 50 samples were validated by real-time PCR. Results were correlated with clinicopathological parameters and Kaplan-Meier was performed to determine the prognostic significance. RESULTS High immunoexpression of TYRP1 and HIF-1α was present in 61 and 54% of patients, respectively. Both TYRP1 and HIF-1α correlated well with high pigmentation and BAP1 (BRCA1 Associated Protein-1) loss (p < 0.05) at IHC level as well as transcriptional level. There was reduced metastatic free survival in patients with necrosis and this was statistically significant (p = 0.010). CONCLUSION Our findings indicate that TYRP1 can be used as a potential biomarker in the development of targeted therapy in UM. Further studies on melanogenesis markers associated with TYRP1 could provide us a better understanding in this field.
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Affiliation(s)
- J Jha
- Department of Ocular Pathology, Dr.R.P.Centre for Ophthalmic Sciences, All India Institute of Medical Sciences, New Delhi, India
| | - M K Singh
- Department of Dermatology, University of Wisconsin, Madison, USA
| | - L Singh
- Department of Paediatrics, All India Institute of Medical Sciences, New Delhi, India
| | - N Pushker
- Department of Ophthalmology, Dr.R.P.Centre for Ophthalmic Sciences, All India Institute of Medical Sciences, New Delhi, India
| | - N Lomi
- Department of Ophthalmology, Dr.R.P.Centre for Ophthalmic Sciences, All India Institute of Medical Sciences, New Delhi, India
| | - R Meel
- Department of Ophthalmology, Dr.R.P.Centre for Ophthalmic Sciences, All India Institute of Medical Sciences, New Delhi, India
| | - K Chosdol
- Department of Biochemistry, All India Institute of Medical Sciences, New Delhi, India
| | - S Sen
- Department of Ocular Pathology, Dr.R.P.Centre for Ophthalmic Sciences, All India Institute of Medical Sciences, New Delhi, India
| | - S Bakhshi
- Department of Medical Oncology, All India Institute of Medical Sciences, New Delhi, India
| | - S Kashyap
- Department of Ocular Pathology, Dr.R.P.Centre for Ophthalmic Sciences, All India Institute of Medical Sciences, New Delhi, India.
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Prognostic impact of HERC2 protein and pink-eyed dilution protein in uveal melanoma. Hum Cell 2020; 33:1264-1272. [PMID: 32686068 DOI: 10.1007/s13577-020-00397-9] [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: 05/09/2020] [Accepted: 07/08/2020] [Indexed: 10/23/2022]
Abstract
Biological understanding of pigmentation and its association with clinicopathological implications in uveal melanoma (UM) risk is still unexplored. HECT and RLD Domain Containing E3 Ubiquitin Protein Ligase 2 (HERC2) and Pink-eyed dilution protein (P-protein) are the important markers that regulate pigmentation in eye. Therefore, our aim of the study was to investigate the expression of HERC2 and P-protein in the UM patients and correlate with patient outcome. Fifty-two formalin-fixed paraffin-embedded UM tissue samples were included to detect the expression of HERC2 and P-protein by immunohistochemistry and validated by western blot. Cox proportional hazard model and log-rank test were used to determine the prognostic potential of these proteins. High pigmentation was seen in 67% of the UM cases. The expression of HERC2 and P-protein was present in 44% and 71% cases, respectively. On statistical analysis, increased pigmentation, epithelioid cell type, and ciliary body invasion were significant with the protein expressions (p < 0.05). Metastasis-free survival was reduced in UM cases which expressed HERC2 and P-protein. On multivariate analysis, P-protein expression was found to be an independent prognostic factor. Our findings suggest that HERC2 and P-protein could be used as novel predictors of high pigmentation in UM cases which have high metastatic potential.
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Bose A, Petsko GA, Eliezer D. Parkinson's Disease and Melanoma: Co-Occurrence and Mechanisms. JOURNAL OF PARKINSONS DISEASE 2019; 8:385-398. [PMID: 29991141 PMCID: PMC6130416 DOI: 10.3233/jpd-171263] [Citation(s) in RCA: 54] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Parkinson's disease (PD) is a neurodegenerative disorder that is characterized by loss of dopaminergic neurons in the substantia nigra pars compacta, depletion of dopamine in the striatum and the presence of Lewy bodies. Cancer is uncontrolled growth of cells in the body and migration of these cells from their site of origin to other parts of the body. PD and cancer are two opposite diseases, one arising from cell proliferation and the other from cell degeneration. This fundamental difference is consistent with inverse comorbidity between most cancers and neurodegenerative diseases. However, a positive association of PD and melanoma has been reported which has recently become of significant interest. A link between PD and cancer has been supported by many epidemiological studies, most of which show that PD patients have a lower risk of developing most cancers than the general population. However, the mechanisms underlying this epidemiological observation are not known. In this review we focus on epidemiological studies correlating PD and melanoma and the possible mechanisms underlying the co-occurrence of the two diseases. We explore possible explanations for the important observations that more PD patients develop melanoma that would otherwise be expected and vice-versa.
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Affiliation(s)
- Anindita Bose
- Helen and Robert Appel Alzheimer's disease Research Institute, Weill Cornell Medicine, New York, NY, USA
| | - Gregory A Petsko
- Helen and Robert Appel Alzheimer's disease Research Institute, Weill Cornell Medicine, New York, NY, USA
| | - David Eliezer
- Department of Biochemistry, Feil Family Brain and Mind Research Institute, Weill Cornell Medicine, New York, NY, USA
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Pan X, Zheng S. Clinical and genetic characteristics of nevus of Ota with choroidal melanoma in Chinese. Ophthalmic Genet 2019; 40:338-341. [PMID: 31407624 DOI: 10.1080/13816810.2019.1650073] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Abstract
Purpose: The aim of the present study is to report the clinical and genetic characteristics of nevus of Ota with choroidal melanoma in Chinese patients. Patients and Methods: Patients with nevus of Ota with choroidal melanoma were identified by searching the computerized database and patient medical records of Beijing Shijitan Hospital and Shaanxi Yulin Tradition Chinese Medicine Hospital. The patients (2 men and 1 woman; mean age, 52 years; age range, 52‑57 years) were all treated by enucleation or local endoresection, and choroidal melanoma was confirmed by pathologic examination. Results: The patients (2 men and 1 woman; mean age, 52 years; age range, 52‑57 years) were all treated by enucleation or local endoresection, and choroidal melanoma was confirmed by pathologic examination. The study found that patients with nevus of Ota had higher risk for malignant melanoma. Furthermore, we found two suspicious gene mutations involving FAM111B and DSC2, that might contribute to the etiology of the disease. Conclusions: The results indicate that patients with nevus of Ota should undergo regular ophthalmological observation and be aware of the potential for malignancy.
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Affiliation(s)
- Xue Pan
- Department of Ophthalmology, Beijing Shijitan Hospital, Capital Medical University , Beijing , China
| | - Shufeng Zheng
- Eye Hospital, Tradition Chinese Medicine Hospital of Yulin , Shaanxi , China
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Ung C, Laíns I, Silverman RF, Woods R, Lane AM, Papakostas TD, Husain D, Miller JW, Gragoudas ES, Kim IK, Miller JB. Evaluation of choroidal lesions with swept-source optical coherence tomography. Br J Ophthalmol 2018; 103:88-93. [PMID: 29605814 DOI: 10.1136/bjophthalmol-2017-311586] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2017] [Accepted: 03/11/2018] [Indexed: 12/18/2022]
Abstract
AIMS The aim of our study was to image choroidal lesions with swept-source optical coherence tomography (SS-OCT) and to identify the morphological characteristics associated with optimal visualisation. METHODS This was a prospective, cross-sectional study. Patients with choroidal melanocytic lesions <3 mm in thickness on B-scan ultrasonography were recruited. All participants underwent SS-OCT. On SS-OCT we evaluated qualitative (eg, lesion outline, detection of scleral-choroidal interface and quality of the image) and quantitative (measurement of maximum lesion thickness and the largest basal diameter) parameters. Probability of optimal image quality was examined using ordered logistic regression models. The main outcome measure was quality of the choroidal lesion images on SS-OCT, defined as: optimal, suboptimal or poor. RESULTS We included 85 choroidal lesions of 82 patients. There were 24 choroidal lesions (29%) for which image quality was classified as optimal, 31 lesions (37%) as suboptimal and 30 lesions (36%) as poor. The factors associated with optimal image quality were distance closer to the fovea (OR 0.76, p<0.001), posterior pole location (OR 3.87, p=0.05), lower ultrasonography thickness (OR 0.44, p=0.04), lighter lesion pigmentation (OR 0.12, p=0.003) and smaller lesion diameter (OR 0.73, p<0.001). In the multivariable analysis, closer distance to the fovea (OR 0.81, p=0.005), lighter lesion pigmentation (OR 0.11, p=0.01) and smaller lesion diameter (OR 0.76, p=0.006) remained statistically significant. CONCLUSION SS-OCT is useful in imaging most choroidal melanocytic lesions. Image quality is best when the choroidal lesion is closer to the fovea, has a smaller diameter and a lighter choroidal pigmentation.
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Affiliation(s)
- Cindy Ung
- Retina Service, Massachusetts Eye and Ear, Department of Ophthalmology, Harvard Medical School, Boston, Massachusetts, USA
| | - Inês Laíns
- Retina Service, Massachusetts Eye and Ear, Department of Ophthalmology, Harvard Medical School, Boston, Massachusetts, USA.,Faculty of Medicine, University of Coimbra, Coimbra, Portugal
| | - Rebecca F Silverman
- Retina Service, Massachusetts Eye and Ear, Department of Ophthalmology, Harvard Medical School, Boston, Massachusetts, USA
| | - Russell Woods
- Department of Ophthalmology, Harvard Medical School, Schepens Eye Research Institute, Boston, Massachusetts, USA
| | - Anne Marie Lane
- Retina Service, Massachusetts Eye and Ear, Department of Ophthalmology, Harvard Medical School, Boston, Massachusetts, USA
| | - Thanos D Papakostas
- Retina Service, Massachusetts Eye and Ear, Department of Ophthalmology, Harvard Medical School, Boston, Massachusetts, USA
| | - Deeba Husain
- Retina Service, Massachusetts Eye and Ear, Department of Ophthalmology, Harvard Medical School, Boston, Massachusetts, USA
| | - Joan W Miller
- Retina Service, Massachusetts Eye and Ear, Department of Ophthalmology, Harvard Medical School, Boston, Massachusetts, USA
| | - Evangelos S Gragoudas
- Retina Service, Massachusetts Eye and Ear, Department of Ophthalmology, Harvard Medical School, Boston, Massachusetts, USA
| | - Ivana K Kim
- Retina Service, Massachusetts Eye and Ear, Department of Ophthalmology, Harvard Medical School, Boston, Massachusetts, USA
| | - John B Miller
- Retina Service, Massachusetts Eye and Ear, Department of Ophthalmology, Harvard Medical School, Boston, Massachusetts, USA
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Xu H, Gong J, Liu H. High expression of lncRNA PVT1 independently predicts poor overall survival in patients with primary uveal melanoma. PLoS One 2017; 12:e0189675. [PMID: 29244840 PMCID: PMC5731763 DOI: 10.1371/journal.pone.0189675] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2017] [Accepted: 11/30/2017] [Indexed: 02/07/2023] Open
Abstract
The plasmacytoma variant translocation 1 gene (PVT1) plays an oncogenic role in the initiation and progression of multiple cancers. In this study, by using deep-sequencing data and follow-up data in the Cancer Genome Atlas-Uveal melanomas (TCGA-UVM), we assessed the association between the expression of PVT1 and clinicopathological characteristics of patients with uveal melanoma, the mechanism of its dysregulation and its prognostic value. Results showed that high PVT1 expression group had a higher proportion of epithelioid cell dominant disease (a more malignant histological subtype than spindle cell dominant disease) and more cases of extrascleral extension (a risk factor for metastasis) compared with the low PVT1 expression group. 61 out of 80 cases (76.3%) of primary uveal melanoma had PVT1 amplification in TCGA-UVM. In addition, PVT1 expression was strongly and negatively correlated with its methylation status (Pearson's r = -0.712, Spearman's r = -0.806). By performing univariate and multivariate analysis, we found that high PVT1 expression was an independent predictor of poor OS in patients with uveal melanoma (HR: 12.015, 95%CI: 1.854-77.876, p = 0.009). Based on these findings, we infer that PVT1 expression is modulated by both DNA amplification and methylation and its expression might serve as a valuable and specific prognostic biomarker in terms of OS in uveal melanoma.
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Affiliation(s)
- Haiming Xu
- Department of Ophthalmology, Zhejiang Provincial People's Hospital, People's Hospital of Hangzhou Medical College, Hangzhou, Zhejiang, China
| | - Jingwen Gong
- Department of Ophthalmology, Zhejiang Provincial People's Hospital, People's Hospital of Hangzhou Medical College, Hangzhou, Zhejiang, China
| | - Hui Liu
- Department of Ophthalmology, Zhejiang Provincial People's Hospital, People's Hospital of Hangzhou Medical College, Hangzhou, Zhejiang, China
- * E-mail:
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Nayman T, Bostan C, Logan P, Burnier MN. Uveal Melanoma Risk Factors: A Systematic Review of Meta-Analyses. Curr Eye Res 2017; 42:1085-1093. [PMID: 28494168 DOI: 10.1080/02713683.2017.1297997] [Citation(s) in RCA: 39] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
PURPOSE There is currently no clinical risk-assessment tool allowing identification of patients at risk for developing uveal melanoma (UM) who might benefit from regular screening. As a first step toward the elaboration of such a tool, we systematically reviewed UM risk factors already established by meta-analysis. METHODS Two reviewers independently screened Pubmed, Medline, Embase, and Web of Science from their respective inception dates until July 2016 using a combination of keywords and MeSH terms. Eligible studies were meta-analyses or systematic reviews providing pooled odds ratios (ORs) of risk factors for UM development or sufficient information to calculate them. Methodological quality was evaluated using the Assessment of Multiple Systematic Reviews tool. RESULTS Four meta-analyses with a mean methodological quality score of 65.9% (min: 54.5%; max: 72.7%) were included. The following significant risk factors were identified: atypical cutaneous nevi (OR 2.82, 95% CI 1.10-7.26), welding (OR 2.05, 95% CI 1.20-3.51), occupational cooking (OR 1.81, 95% CI 1.33-2.46), fair skin color (OR 1.80, 95% CI 1.31-2.47), light eye color (OR 1.75, 95% CI 1.31-2.34), common cutaneous nevi (OR 1.74, 95% CI 1.27-2.39), propensity to sunburn (OR 1.64, 95% CI 1.29-2.09), iris nevi (OR 1.53, 95% CI 1.03-2.27), and cutaneous freckles (OR 1.27, 95% CI 1.09-1.49). Non-significant factors included outdoor leisure activity, occupational sunlight exposure, latitude of birth, and hair color. CONCLUSION Moderate quality of evidence determined nine significant risk factors for developing UM. Knowledge of these variables will assist researchers in the elaboration of a formal risk-assessment tool allowing clinicians to estimate susceptibility to the disease and necessity of regular screening.
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Affiliation(s)
- Taylor Nayman
- a The Henry C. Witelson Ocular Pathology Laboratory , McGill University , Montreal , QC , Canada.,b Faculty of Medicine , McGill University , Montreal , QC , Canada
| | - Cristina Bostan
- a The Henry C. Witelson Ocular Pathology Laboratory , McGill University , Montreal , QC , Canada.,c Department of Ophthalmology , University of Montreal , Montreal , QC , Canada
| | - Patrick Logan
- a The Henry C. Witelson Ocular Pathology Laboratory , McGill University , Montreal , QC , Canada
| | - Miguel N Burnier
- a The Henry C. Witelson Ocular Pathology Laboratory , McGill University , Montreal , QC , Canada.,d Department of Ophthalmology , McGill University , Montreal , QC , Canada
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16
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Csoma RZ, Tóth-Molnár E, Varga A, Szabó H, Orvos H, Kemény L, Oláh J. Risk Factors and Relationship of Cutaneous and Uveal Melanocytic Lesions in Monozygotic and Dizygotic Twin Pairs. PLoS One 2016; 11:e0160146. [PMID: 27486750 PMCID: PMC4972429 DOI: 10.1371/journal.pone.0160146] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2016] [Accepted: 07/14/2016] [Indexed: 02/03/2023] Open
Abstract
BACKGROUND The similar genetic background of a pair of twins, and the similar environmental impacts to which they are exposed allow an exact and objective investigation of various constitutional and environmental factors in naevus development. As far as we are aware, this is the first published survey that simultaneously examines cutaneous and ocular pigmented lesions in an appreciable sample of identical and non-identical twins. METHODS 172 pairs of twins of Caucasian origin were included in this study. A whole-body skin examination and a detailed ophthalmological examination were performed to determine the density of melanocytic lesions. A standardized questionnaire was used to assess the data relating to constitutional, sun exposure and other variables. RESULTS A notably high proportion of the subjects (36.78%) manifested one or more clinically atypical melanocytic naevi (CAMNs), and approximately one-third (31.4%) of them at least one benign uveal pigmented lesion (BUPL). The incidence of iris freckles (IFs), iris naevi (INs) and choroidal naevi (CHNs) proved to be 25.35%, 5.98% and 3.52%, respectively. The interclass correlation coefficients for common melanocytic naevi (CMNs), CAMNs, and INs were 0.77, 0.76 and 0.86 in monozygotic twins, as compared with 0.5, 0.27 and 0.25 in dizygotic twin pairs, respectively. A statistically significant correlation was found between the prevalence of CAMNs and that of INs. CONCLUSIONS This significant correlation suggests the existence of a subgroup of Caucasian people with an increased susceptibility to both cutaneous and ocular naevus formation. There is accumulating evidence that, besides the presence of cutaneous atypical naevi, INs can serve as a marker of a predisposed phenotype at risk of uveal melanoma. The correlation between cutaneous and ocular pigmented lesions underlines the need for the adequate ophthalmological screening of subjects with CAMNs and INs.
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Affiliation(s)
- Renáta Zsanett Csoma
- Department of Dermatology and Allergology, University of Szeged, Szeged, Hungary
| | - Edit Tóth-Molnár
- Department of Ophthalmology, University of Szeged, Szeged, Hungary
| | - Anita Varga
- Department of Dermatology and Allergology, University of Szeged, Szeged, Hungary
| | - Hajnalka Szabó
- Department of Paediatrics, University of Szeged, Szeged, Hungary
| | - Hajnalka Orvos
- Department of Obstetrics and Gynaecology, University of Szeged, Szeged, Hungary
| | - Lajos Kemény
- Department of Dermatology and Allergology, University of Szeged, Szeged, Hungary
- Dermatological Research Group of the Hungarian Academy of Sciences, University of Szeged, Szeged, Hungary
| | - Judit Oláh
- Department of Dermatology and Allergology, University of Szeged, Szeged, Hungary
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Zarfoss MK, Klauss G, Newkirk K, Kiupel M, Jones Y, Colitz CMH, Dubielzig RR. Uveal Spindle Cell Tumor of Blue-Eyed Dogs: An Immunohistochemical Study. Vet Pathol 2016; 44:276-84. [PMID: 17491068 DOI: 10.1354/vp.44-3-276] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
Immunohistochemical techniques were used to investigate the origin of a spindle cell tumor in the anterior uveal tract of dogs and the influence of ultraviolet radiation on the development of this tumor. Thirteen tumors were identified from the 4,007 canine ocular samples examined at the Comparative Ocular Pathology Laboratory of Wisconsin between 1978 and 2005. Siberian Husky and Siberian Husky mix dogs were overrepresented (10/13 dogs, overall median age 10 years). Light microscopic evaluation (all dogs) and electron microscopy (2 dogs) were performed. Immunohistochemical staining included alpha-smooth muscle actin (SMA), vimentin, S-100, desmin, glial fibrillary acidic protein (GFAP), Melan A, microphthalmic transcription factor (MITF-1), protein gene product 9.5 (PGP 9.5), laminin, gadd45, p53, proliferating cell nuclear antigen (PCNA), anti-UVssDNA (antibody for detection of (6–4)-dipyrimidine photoproducts), and telomerase reverse transcriptase (TERT). All tumors occurred in the iris with or without ciliary body involvement and were composed of spindle cells arranged in fascicles and whorls (variable Antoni A and B behavior). All tumors were positive when immunostained for vimentin and S-100. Nine of 13 tumors exhibited GFAP immunopositivity. All tumors were negative for SMA, desmin, Melan A, and MITF-1. Tumors were variably positive for PGP 9.5, laminin, gadd45, p53, PCNA, anti-UVssDNA, and TERT. Electron microscopy revealed intermittent basal laminae between cells. These tumors are morphologically and immunohistochemically most consistent with schwannoma. The relationship between spindle cell tumors of the anterior uvea of dogs, altered neural crest, blue iris color, and ultraviolet radiation has not yet been fully elucidated.
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Affiliation(s)
- M K Zarfoss
- Department of Pathobiological Sciences, University of Wisconsin-Madison, Madison, WI 53706, USA
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18
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Abstract
Uveal melanoma is the most common intraocular malignancy in adults. Despite excellent rates of local control, half of all patients with uveal melanoma ultimately go on to develop fatal metastatic disease. This review focuses on disparities and differences in the underlying characteristics of the patients, and how these patient characteristics impact the development of metastasis and subsequent patient survival. Specifically, we detail disparities in epidemiology and risk factors as they relate to the development of primary uveal melanoma, to the development of metastasis, and to patient survival following metastasis.
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Affiliation(s)
- Erin E Nichols
- a Department of Ophthalmology and Visual Sciences , Vanderbilt University Medical Center , Nashville , TN , USA
| | - Ann Richmond
- b Tennessee Valley Healthcare System , Department of Veterans Affairs , Nashville , TN , USA.,c Department of Cancer Biology , Vanderbilt University , Nashville , TN , USA.,d Vanderbilt-Ingram Cancer Center, Vanderbilt University Medical Center , Nashville , TN , USA
| | - Anthony B Daniels
- a Department of Ophthalmology and Visual Sciences , Vanderbilt University Medical Center , Nashville , TN , USA.,c Department of Cancer Biology , Vanderbilt University , Nashville , TN , USA.,d Vanderbilt-Ingram Cancer Center, Vanderbilt University Medical Center , Nashville , TN , USA.,e Department of Radiation Oncology , Vanderbilt University Medical Center , Nashville , TN , USA
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Huang P, Yang XD, Chen SD, Xiao Q. The association between Parkinson's disease and melanoma: a systematic review and meta-analysis. Transl Neurodegener 2015; 4:21. [PMID: 26535116 PMCID: PMC4631109 DOI: 10.1186/s40035-015-0044-y] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2015] [Accepted: 10/23/2015] [Indexed: 01/01/2023] Open
Abstract
Objective To assess the association between Parkinson’s disease (PD) and melanoma via systematic review and meta-analysis. Methods Comprehensive search in PubMed, Web of Science, Embase and four China databases (SinoMed, WanFang data, CNKI and VIP database) of epidemiologic evidences on PD and melanoma published before April 30, 2015. Studies which reported risk estimates of melanoma among PD patients or risk estimates of PD in patients with melanoma were included. Pooled odds ratios (ORs) with 95 % confidence intervals (CIs) were calculated by random-effects models. Heterogeneity across studies was assessed using Cochran Q and I2 statistics. Subgroup analyses and sensitivity analyses were conducted to evaluate sources of heterogeneity. Subgroup analyses were done according to temporal relationship, geographic region and gender respectively. We assessed publication bias using the Begg and Egger test. In addition, study appraisal was done using a scale for observational studies to ensure the quality of evidence. Results We identified 24 eligible studies on PD and melanoma with a total number of 292,275 PD patients: the pooled OR was 1.83 (95 % CI 1.46–2.30) overall, subgroup analyses by temporal relationship showed that risk of melanoma after PD diagnosis was significantly higher (OR 2.43, 95 % CI 1.77–3.32), but not before the diagnosis of PD (OR 1.09, 95 % CI 0.78–1.54). Subgroup analysis by geographic region showed that increased risk of melanoma in PD was found both in Europe (OR 1.44, 95 % CI 1.22–1.70) and in North America (OR 2.64, 95 % CI 1.63–4.28). Gender-specific subgroup analyses did not show difference between men (OR 1.64, 95 % CI 1.27–2.13) and women (OR 1.38, 95 % CI 1.04–1.82) in the risk of melanoma. In addition, we found the risk of non-melanoma skin cancers in PD was slightly higher (OR 1.20, 95 % CI 1.11–1.29) than general population. It was impossible to evaluate the association between PD and melanoma according to use of levodopa or gene polymorphism via meta-analysis since few observational or cohort studies have focused on it. Conclusions An association between PD and melanoma was confirmed. Most of the evidences were of high quality, and the conclusion was robust. Further research is needed to explore the mechanisms underlying this relationship. Electronic supplementary material The online version of this article (doi:10.1186/s40035-015-0044-y) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Pei Huang
- Department of Neurology & Institute of Neurology, Ruijin Hospital affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, 200025 China
| | - Xiao-Dong Yang
- Department of Neurology & Institute of Neurology, Ruijin Hospital affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, 200025 China
| | - Sheng-Di Chen
- Department of Neurology & Institute of Neurology, Ruijin Hospital affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, 200025 China
| | - Qin Xiao
- Department of Neurology & Institute of Neurology, Ruijin Hospital affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, 200025 China
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Evidence for the Role of Blue Light in the Development of Uveal Melanoma. J Ophthalmol 2015; 2015:386986. [PMID: 26075084 PMCID: PMC4449937 DOI: 10.1155/2015/386986] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2015] [Accepted: 04/28/2015] [Indexed: 12/26/2022] Open
Abstract
Uveal melanoma is the most common malignancy of the adult eye. Although it is a relatively infrequent tumor, clinical prognosis is often poor owing to a high incidence of aggressive metastatic disease, for which there are limited treatment options. Little is known about the etiology of this condition, although several risk factors have been identified. Unlike cutaneous melanoma, however, ultraviolet radiation does not figure prominently among these risk factors. In this review, we focus on an associated form of visible electromagnetic radiation, high-energy short-wave (blue) light, a causative agent in various forms of age-related retina damage, as a previously overlooked risk factor in uveal melanoma development and progression. Finally, we discuss the impact of these data on contemporary ocular therapy, particularly the debate surrounding the filtering capabilities of intraocular lenses used to replace dysfunctional crystalline lenses during cataract surgery.
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Pan T, Zhu J, Hwu WJ, Jankovic J. The role of alpha-synuclein in melanin synthesis in melanoma and dopaminergic neuronal cells. PLoS One 2012; 7:e45183. [PMID: 23028833 PMCID: PMC3446957 DOI: 10.1371/journal.pone.0045183] [Citation(s) in RCA: 66] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2012] [Accepted: 08/17/2012] [Indexed: 12/20/2022] Open
Abstract
The relatively high co-occurrence of Parkinson's disease (PD) and melanoma has been established by a large number of epidemiological studies. However, a clear biological explanation for this finding is still lacking. Ultra-violet radiation (UVR)-induced skin melanin synthesis is a defense mechanism against UVR-induced damage relevant to the initiation of melanoma, whereas, increased neuromelanin (NM), the melanin synthesized in dopaminergic neurons, may enhance the susceptibility to oxidative stress-induced neuronal injury relevant to PD. SNCA is a PD-causing gene coding for alpha-Synuclein (α-Syn) that expresses not only in brain, but also in skin as well as in tumors, such as melanoma. The findings that α-Syn can interact with tyrosinase (TYR) and inhibit tyrosine hydroxylase (TH), both of which are enzymes involved in the biosynthesis of melanin and dopamine (DA), led us to propose that α-Syn may participate in the regulation of melanin synthesis. In this study, by applying ultraviolet B (UVB) light, a physiologically relevant stimulus of melanogenesis, we detected melanin synthesis in A375 and SK-MEL-28 melanoma cells and in SH-SY5Y and PC12 dopaminergic neuronal cells and determined effects of α-Syn on melanin synthesis. Our results showed that UVB light exposure increased melanin synthesis in all 4 cell lines. However, we found that α-Syn expression reduced UVB light-induced increase of melanin synthesis and that melanin content was lower when melanoma cells were expressed with α-Syn, indicating that α-Syn may have inhibitory effects on melanin synthesis in melanoma cells. Different from melanoma cells, the melanin content was higher in α-Syn-over-expressed dopaminergic neuronal SH-SY5Y and PC12 cells, cellular models of PD, than that in non-α-Syn-expressed control cells. We concluded that α-Syn could be one of the points responsible for the positive association between PD and melanoma via its differential roles in melanin synthesis in melanoma cells and in dopaminergic neuronal cells.
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Affiliation(s)
- Tianhong Pan
- Neurology Department, Parkinson Disease Research Laboratory, Baylor College of Medicine, Houston, Texas, USA.
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Pan T, Li X, Jankovic J. The association between Parkinson's disease and melanoma. Int J Cancer 2011; 128:2251-60. [PMID: 21207412 DOI: 10.1002/ijc.25912] [Citation(s) in RCA: 107] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2010] [Accepted: 12/20/2010] [Indexed: 12/25/2022]
Abstract
Parkinson's disease (PD) is a neurodegenerative disorder characterized by a loss of melanin-positive, dopaminergic neurons in the substantia nigra. Although there is convincing epidemiologic evidence of a negative association between PD and most cancers, a notable exception to this is that melanoma, a malignant tumor of melanin-producing cells in skin, occurs with higher-than-expected frequency among subjects with PD and that melanoma patients are more likely to have PD. A clear biological explanation for this epidemiological observation is lacking. Here, we present a comprehensive review of published literature exploring the association between PD and melanoma. On the basis of published findings, we conclude that (i) changes in pigmentation including melanin synthesis and/or melanin synthesis enzymes, such as tyrosinase and tyrosine hydroxylase, play important roles in altered vulnerability for both PD and melanoma; (ii) changes of PD-related genes such as Parkin, LRRK2 and α-synuclein may increase the risk of melanoma; (iii) changes in some low-penetrance genes such as cytochrome p450 debrisoquine hydroxylase locus, glutathione S-transferase M1 and vitamin D receptor could increase the risk for both PD and melanoma and (iv) impaired autophagy in both PD and melanoma could also explain the association between PD and melanoma. Future studies are required to address whether altered pigmentation, PD- or melanoma-related gene changes and/or changes in autophagy function induce oncogenesis or apoptosis. From a clinical point of view, early diagnosis of melanoma in PD patients is critical and can be enhanced by periodic dermatological surveillance, including skin biopsies.
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Affiliation(s)
- Tianhong Pan
- Diana Helis Henry Medical Research Foundation, New Orleans, LA, USA
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Chen YC, Chang CH, Hsu SL, Hsu MW, Lee CL. Malignant Melanoma of the Choroid in the Eye With Oculodermal Melanocytosis of a Chinese Woman. Kaohsiung J Med Sci 2010; 26:673-8. [DOI: 10.1016/s1607-551x(10)70103-0] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2010] [Accepted: 04/23/2010] [Indexed: 10/18/2022] Open
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Russell-Hermanns D, Fernandes B, PV S, Burnier Jr M. Eye growth transformation: uveal melanoma. EXPERT REVIEW OF OPHTHALMOLOGY 2010. [DOI: 10.1586/eop.10.36] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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Abstract
The specific genetic mechanisms responsible for the malignant behavior of uveal melanoma are not known. Unlike cutaneous melanoma, epidemiologic studies have not demonstrated a definitive germline form of uveal melanoma, though familial melanoma and racial predilections occur. Molecular cytogenetic characterization of uveal melanoma suggests that somatic deletions of chromosome 3 are associated with a worse prognosis. Microarray technology has been used to characterize uveal melanoma gene expression and may provide tests useful for determining prognosis. As an improved understanding of the cellular mechanisms used by uveal melanoma is gained, new opportunities to adapt or design therapeutic approaches may emerge.
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Franssen L, Coppens JE, van den Berg TJ. Grading of Iris Color with an Extended Photographic Reference Set. JOURNAL OF OPTOMETRY 2008; 1. [PMCID: PMC3972695 DOI: 10.3921/joptom.2008.36] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/05/2023]
Abstract
Purpose To present a new iris pigmentation classification system based on comparison of iris pigmentation to a set of 24 standard eye photographs, with the aim of gaining on accuracy and on applicability for retinal straylight studies. Methods A reference set of 24 eye photographs was established by ranking the photographs from least (number 1) to most (number 24) iris pigmentation. Reproducibility was tested by grading a sample of 67 eye photographs with this reference set. Results The overall variation between observers was 1.46 on a scale of 0 to 25. Conclusion The new method is promising to be more accurate than existing iris color classification systems in clinical situations where objective colorimetry-based systems are not available. The method may be useful to assess iris translucency and fundus reflectance as sources of variation in retinal straylight.
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Affiliation(s)
- Luuk Franssen
- Corresponding Author: Netherlands Institute for Neuroscience, Royal Netherlands Academy of Arts and Sciences, Meibergdreef 47, 1105 BA Amsterdam, The Netherlands.
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Smith JH, Padnick-Silver L, Newlin A, Rhodes K, Rubinstein WS. Genetic Study of Familial Uveal Melanoma. Ophthalmology 2007; 114:774-9. [PMID: 17207529 DOI: 10.1016/j.ophtha.2006.08.041] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2005] [Revised: 08/08/2006] [Accepted: 08/11/2006] [Indexed: 10/23/2022] Open
Abstract
PURPOSE To evaluate a kindred with familial uveal and cutaneous melanoma and to identify potential genetic and environmental factors that may predispose individuals to develop uveal melanoma. DESIGN Family-based case report with detailed clinical and genetic evaluation. PARTICIPANTS Ten siblings in a single nuclear family. METHODS Evaluation of a large sibship via family history, complete eye and skin examinations, environmental risk factor questionnaire, and genetic testing, as well as a MEDLINE search of familial uveal melanoma kindreds. MAIN OUTCOME MEASURES Cutaneous and ocular nevi, benign and malignant neoplasms of skin and other sites, brief skin cancer risk assessment tool risk classification for cutaneous melanoma, DNA sequencing of p16INK4a and p14ARF genes, and citations on familial uveal melanoma. RESULTS The proband and his mother had uveal melanoma, 3 cutaneous melanomas occurred among 2 siblings, and 2 other siblings had basal cell carcinomas. No germline mutations were detected in the melanoma-associated tumor suppressor genes p16INK4a and p14ARF. Seven out of 10 siblings had a history of cutaneous and/or ocular nevi. Of the 3 subjects without nevi, 2 had histories of eye or skin malignancies (1 uveal melanoma, 1 basal cell carcinoma). Three of the 10 siblings had relevant ocular findings (2 choroidal nevi, 1 uveal melanoma). Six were also found to be in the "high-risk" classification for cutaneous malignancies based on scores from a previously validated risk assessment tool. This family, combined with the 91 previously reported familial uveal melanoma kindreds, brings to 92 the total number thus far recorded. CONCLUSIONS Our results strengthen the association between uveal melanoma, atypical nevi, and cutaneous melanoma. This relationship supports the recommendation that individuals with a personal or family history of uveal melanoma, particularly in combination with atypical nevi, should be regularly screened for uveal and cutaneous melanoma.
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Affiliation(s)
- Jennifer H Smith
- Division of Ophthalmology, Evanston Northwestern Healthcare, Glenview, Illinois, USA
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White JS, McLean IW, Becker RL, Director-Myska AE, Nath J. Correlation of comparative genomic hybridization results of 100 archival uveal melanomas with patient survival. ACTA ACUST UNITED AC 2006; 170:29-39. [PMID: 16965952 DOI: 10.1016/j.cancergencyto.2006.05.004] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2006] [Revised: 05/01/2006] [Accepted: 05/12/2006] [Indexed: 11/28/2022]
Abstract
Comparative genomic hybridization (CGH) was used to elucidate DNA sequence copy number imbalances in 100 archival formalin-fixed, paraffin-embedded (FFPE) uveal melanoma cases. Of these 100 cases, 51 were from patients who survived >or=9 years post diagnosis without evidence of metastasis; the remaining 49 patients died from metastatic disease. Viable probe was generated from 82 of the 100 cases, allowing correlation of CGH findings with survival for all but 18 cases. Copy number imbalances revealed by CGH were tested for univariate prognostic significance. The most powerful predictor of a poor prognosis was gain of 18q11.2, which was subsequently compared with other significant chromosomal regions, as well as histologic and clinical factors, in a multivariate analysis. There was also evidence of differential X chromosome involvement in the survival correlations between male and female cases, which may be of significance to prognosis. This large-scale CGH analysis of archival material is intended to direct further gene-specific study of malignancy in uveal melanoma.
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Affiliation(s)
- Jason S White
- Genetics and Developmental Biology Program, West Virginia University, 1120 Agricultural Sciences Building, Morgantown, 26506, USA
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White JS, Becker RL, McLean IW, Director-Myska AE, Nath J. Molecular cytogenetic evaluation of 10 uveal melanoma cell lines. ACTA ACUST UNITED AC 2006; 168:11-21. [PMID: 16772116 DOI: 10.1016/j.cancergencyto.2005.11.016] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2005] [Revised: 11/21/2005] [Accepted: 11/28/2005] [Indexed: 10/24/2022]
Abstract
Uveal melanoma is the most common intraocular tumor in adults and often results in unilateral blindness and/or death. Previous cytogenetic characterizations of this tumor consistently revealed chromosomal abnormalities involving chromosomes 3, 6, and 8; reports of other abnormalities vary in frequency. We defined cytogenetic abnormalities of this tumor using complementary in situ hybridization techniques on 10 uveal melanoma cell lines. Synthesis of comparative genomic hybridization (CGH) and spectral karyotyping (SKY) results revealed that chromosomal rearrangement is involved in DNA sequence copy number abnormalities throughout the genome, but monosomy 3 was not found. Monosomy 3 is thought to be a significant prognostic indicator, so its absence was investigated further. Fluorescence in situ hybridization (FISH) for chromosome 3 revealed approximately 1 centromere signal per cell, but probes for 3p and 3q revealed multiple telomere signals per cell, suggesting chromosomal rearrangement without whole-chromosome loss. Based on combined CGH, SKY, and FISH data, we propose that chromosome 3 is more frequently involved in chromosomal rearrangements than whole-chromosome loss in uveal melanoma. Future approaches should be designed to confirm and enhance the resolution of regions of imbalance in primary tumors. Once identified, conserved chromosomal alterations that contribute to uveal melanoma may reveal the underlying aspects of uveal melanoma onset, metastasis and resistance to current treatment modalities.
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Affiliation(s)
- Jason S White
- Genetics and Developmental Biology Program, West Virginia University, 1120 Agricultural Sciences Building, Morgantown, WV 26505-6108, USA
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Al-Sadhan Y, Shawaf S, Tabbara K. Oculodermal melanosis with choroidal melanoma in a black patient: a case report. Eye (Lond) 2006; 20:1437-8. [PMID: 16518365 DOI: 10.1038/sj.eye.6702299] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
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Mouriaux F, Saule S, Desjardins L, Mascarelli F. Les mélanocytes choroïdiens normaux et malins : de la cellule à la clinique. J Fr Ophtalmol 2005; 28:781-93. [PMID: 16208231 DOI: 10.1016/s0181-5512(05)80996-9] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
The molecular and cellular basis of human choroidal malignant melanoma progression has remained largely unknown. However, choroidal melanoma is the most important primary intraocular tumor in adults. Developmentally, choroidal melanocytes are of neural crest origin similar to cutaneous melanocytes. However, there are some significant differences between cutaneous and uveal melanocytes that have yet to be fully assessed. The purpose of this study is to describe choroidal melanocytes. We will describe the significant differences between cutaneous and uveal melanocytes as well as the congenital and acquired diseases of uveal melanocytes. We will then describe the cellular and molecular mechanisms involved in melanoma progression.
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Affiliation(s)
- F Mouriaux
- Service d'Ophtalmologie, CHU Côte de Nacre, Caen.
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