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Szász I, Koroknai V, Várvölgyi T, Pál L, Szűcs S, Pikó P, Emri G, Janka E, Szabó IL, Ádány R, Balázs M. Identification of Plasma Lipid Alterations Associated with Melanoma Metastasis. Int J Mol Sci 2024; 25:4251. [PMID: 38673837 PMCID: PMC11050015 DOI: 10.3390/ijms25084251] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2024] [Revised: 04/08/2024] [Accepted: 04/10/2024] [Indexed: 04/28/2024] Open
Abstract
The aim of this study was to apply a state-of-the-art quantitative lipidomic profiling platform to uncover lipid alterations predictive of melanoma progression. Our study included 151 melanoma patients; of these, 83 were without metastasis and 68 with metastases. Plasma samples were analyzed using a targeted Lipidyzer™ platform, covering 13 lipid classes and over 1100 lipid species. Following quality control filters, 802 lipid species were included in the subsequent analyses. Total plasma lipid contents were significantly reduced in patients with metastasis. Specifically, levels of two out of the thirteen lipid classes (free fatty acids (FFAs) and lactosylceramides (LCERs)) were significantly decreased in patients with metastasis. Three lipids (CE(12:0), FFA(24:1), and TAG47:2-FA16:1) were identified as more effective predictors of melanoma metastasis than the well-known markers LDH and S100B. Furthermore, the predictive value substantially improved upon combining the lipid markers. We observed an increase in the cumulative levels of five lysophosphatidylcholines (LPC(16:0); LPC(18:0); LPC(18:1); LPC(18:2); LPC(20:4)), each individually associated with an elevated risk of lymph node metastasis but not cutaneous or distant metastasis. Additionally, seventeen lipid molecules were linked to patient survival, four of which (CE(12:0), CE(14:0), CE(15:0), SM(14:0)) overlapped with the lipid panel predicting metastasis. This study represents the first comprehensive investigation of the plasma lipidome of melanoma patients to date. Our findings suggest that plasma lipid profiles may serve as important biomarkers for predicting clinical outcomes of melanoma patients, including the presence of metastasis, and may also serve as indicators of patient survival.
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Affiliation(s)
- István Szász
- HUN-REN-UD Public Health Research Group, Department of Public Health and Epidemiology, Faculty of Medicine, University of Debrecen, 4028 Debrecen, Hungary; (I.S.); (R.Á.)
| | - Viktória Koroknai
- Department of Public Health and Epidemiology, Faculty of Medicine, University of Debrecen, 4028 Debrecen, Hungary; (V.K.); (L.P.); (S.S.); (P.P.)
| | - Tünde Várvölgyi
- Department of Dermatology, Faculty of Medicine, University of Debrecen, 4032 Debrecen, Hungary; (T.V.); (G.E.); (E.J.); (I.L.S.)
| | - László Pál
- Department of Public Health and Epidemiology, Faculty of Medicine, University of Debrecen, 4028 Debrecen, Hungary; (V.K.); (L.P.); (S.S.); (P.P.)
| | - Sándor Szűcs
- Department of Public Health and Epidemiology, Faculty of Medicine, University of Debrecen, 4028 Debrecen, Hungary; (V.K.); (L.P.); (S.S.); (P.P.)
| | - Péter Pikó
- Department of Public Health and Epidemiology, Faculty of Medicine, University of Debrecen, 4028 Debrecen, Hungary; (V.K.); (L.P.); (S.S.); (P.P.)
| | - Gabriella Emri
- Department of Dermatology, Faculty of Medicine, University of Debrecen, 4032 Debrecen, Hungary; (T.V.); (G.E.); (E.J.); (I.L.S.)
| | - Eszter Janka
- Department of Dermatology, Faculty of Medicine, University of Debrecen, 4032 Debrecen, Hungary; (T.V.); (G.E.); (E.J.); (I.L.S.)
| | - Imre Lőrinc Szabó
- Department of Dermatology, Faculty of Medicine, University of Debrecen, 4032 Debrecen, Hungary; (T.V.); (G.E.); (E.J.); (I.L.S.)
| | - Róza Ádány
- HUN-REN-UD Public Health Research Group, Department of Public Health and Epidemiology, Faculty of Medicine, University of Debrecen, 4028 Debrecen, Hungary; (I.S.); (R.Á.)
- Department of Public Health and Epidemiology, Faculty of Medicine, University of Debrecen, 4028 Debrecen, Hungary; (V.K.); (L.P.); (S.S.); (P.P.)
| | - Margit Balázs
- HUN-REN-UD Public Health Research Group, Department of Public Health and Epidemiology, Faculty of Medicine, University of Debrecen, 4028 Debrecen, Hungary; (I.S.); (R.Á.)
- Department of Public Health and Epidemiology, Faculty of Medicine, University of Debrecen, 4028 Debrecen, Hungary; (V.K.); (L.P.); (S.S.); (P.P.)
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Szeőcs D, Vida B, Petővári G, Póliska S, Janka E, Sipos A, Uray K, Sebestyén A, Krasznai Z, Bai P. Cell-free ascites from ovarian cancer patients induces Warburg metabolism and cell proliferation through TGFβ-ERK signaling. GeroScience 2024:10.1007/s11357-023-01056-1. [PMID: 38196068 DOI: 10.1007/s11357-023-01056-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2023] [Accepted: 12/24/2023] [Indexed: 01/11/2024] Open
Abstract
Ascites plays a key role in supporting the metastatic potential of ovarian cancer cells. Shear stress and carry-over of cancer cells by ascites flow support carcinogenesis and metastasis formation. In addition, soluble factors may participate in the procarcinogenic effects of ascites in ovarian cancer. This study aimed to determine the biological effects of cell-free ascites on carcinogenesis in ovarian cancer cells. Cell-free ascites from ovarian cancer patients (ASC) non-selectively induced cell proliferation in multiple models of ovarian cancer and untransformed primary human dermal fibroblasts. Furthermore, ASC induced a Warburg-type rearrangement of cellular metabolism in A2780 ovarian cancer cells characterized by increases in cellular oxygen consumption and glycolytic flux; increases in glycolytic flux were dominant. ASC induced mitochondrial uncoupling and fundamentally reduced fatty acid oxidation. Ascites-elicited effects were uniform among ascites specimens. ASC-elicited transcriptomic changes in A2780 ovarian cancer cells included induction of the TGFβ-ERK/MEK pathway, which plays a key role in inducing cell proliferation and oncometabolism. ASC-induced gene expression changes, as well as the overexpression of members of the TGFβ signaling system, were associated with poor survival in ovarian cancer patients. We provided evidence that the activation of the autocrine/paracrine of TGFβ signaling system may be present in bladder urothelial carcinoma and stomach adenocarcinoma. Database analysis suggests that the TGFβ system may feed forward bladder urothelial carcinoma and stomach adenocarcinoma. Soluble components of ASC support the progression of ovarian cancer. These results suggest that reducing ascites production may play an essential role in the treatment of ovarian cancer by inhibiting the progression and reducing the severity of the disease.
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Affiliation(s)
- Dóra Szeőcs
- Department of Medical Chemistry, Faculty of Medicine, University of Debrecen, Debrecen, Hungary, 4032
- Center of Excellence, The Hungarian Academy of Sciences, Debrecen, Hungary
| | - Beáta Vida
- Department of Obstetrics and Gynecology, Faculty of Medicine, University of Debrecen, Debrecen, Hungary, 4032
| | - Gábor Petővári
- Department of Pathology, Semmelweis University, Budapest, Hungary
| | - Szilárd Póliska
- Department of Biochemistry and Molecular Biology, Faculty of Medicine, University of Debrecen, Debrecen, Hungary, 4032
| | - Eszter Janka
- Department of Dermatology, Faculty of Medicine, University of Debrecen, Debrecen, Hungary, 4032
| | - Adrienn Sipos
- Department of Medical Chemistry, Faculty of Medicine, University of Debrecen, Debrecen, Hungary, 4032
- Center of Excellence, The Hungarian Academy of Sciences, Debrecen, Hungary
- HUN-REN-DE Cell Biology and Signaling Research Group, Debrecen, Hungary, 4032
| | - Karen Uray
- Department of Medical Chemistry, Faculty of Medicine, University of Debrecen, Debrecen, Hungary, 4032
- Center of Excellence, The Hungarian Academy of Sciences, Debrecen, Hungary
| | - Anna Sebestyén
- Department of Pathology, Semmelweis University, Budapest, Hungary
| | - Zoárd Krasznai
- Department of Obstetrics and Gynecology, Faculty of Medicine, University of Debrecen, Debrecen, Hungary, 4032
| | - Péter Bai
- Department of Medical Chemistry, Faculty of Medicine, University of Debrecen, Debrecen, Hungary, 4032.
- Center of Excellence, The Hungarian Academy of Sciences, Debrecen, Hungary.
- HUN-REN-DE Cell Biology and Signaling Research Group, Debrecen, Hungary, 4032.
- MTA-DE Lendület Laboratory of Cellular Metabolism, Debrecen, Hungary, 4032.
- Research Center for Molecular Medicine, Faculty of Medicine, University of Debrecen, Debrecen, Hungary, 4032.
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Ujlaki G, Kovács T, Vida A, Kókai E, Rauch B, Schwarcz S, Mikó E, Janka E, Sipos A, Hegedűs C, Uray K, Nagy P, Bai P. Identification of Bacterial Metabolites Modulating Breast Cancer Cell Proliferation and Epithelial-Mesenchymal Transition. Molecules 2023; 28:5898. [PMID: 37570868 PMCID: PMC10420980 DOI: 10.3390/molecules28155898] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2023] [Revised: 07/27/2023] [Accepted: 08/02/2023] [Indexed: 08/13/2023] Open
Abstract
Breast cancer patients are characterized by the oncobiotic transformation of multiple microbiome communities, including the gut microbiome. Oncobiotic transformation of the gut microbiome impairs the production of antineoplastic bacterial metabolites. The goal of this study was to identify bacterial metabolites with antineoplastic properties. We constructed a 30-member bacterial metabolite library and screened the library compounds for effects on cell proliferation and epithelial-mesenchymal transition. The metabolites were applied to 4T1 murine breast cancer cells in concentrations corresponding to the reference serum concentrations. However, yric acid, glycolic acid, d-mannitol, 2,3-butanediol, and trans-ferulic acid exerted cytostatic effects, and 3-hydroxyphenylacetic acid, 4-hydroxybenzoic acid, and vanillic acid exerted hyperproliferative effects. Furthermore, 3-hydroxyphenylacetic acid, 4-hydroxybenzoic acid, 2,3-butanediol, and hydrocinnamic acid inhibited epithelial-to-mesenchymal (EMT) transition. We identified redox sets among the metabolites (d-mannitol-d-mannose, 1-butanol-butyric acid, ethylene glycol-glycolic acid-oxalic acid), wherein only one partner within the set (d-mannitol, butyric acid, glycolic acid) possessed bioactivity in our system, suggesting that changes to the local redox potential may affect the bacterial secretome. Of the nine bioactive metabolites, 2,3-butanediol was the only compound with both cytostatic and anti-EMT properties.
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Affiliation(s)
- Gyula Ujlaki
- Department of Medical Chemistry, Faculty of Medicine, University of Debrecen, 4032 Debrecen, Hungary; (G.U.); (T.K.); (A.V.); (E.K.); (B.R.); (S.S.); (E.M.); (A.S.); (C.H.); (K.U.)
| | - Tünde Kovács
- Department of Medical Chemistry, Faculty of Medicine, University of Debrecen, 4032 Debrecen, Hungary; (G.U.); (T.K.); (A.V.); (E.K.); (B.R.); (S.S.); (E.M.); (A.S.); (C.H.); (K.U.)
| | - András Vida
- Department of Medical Chemistry, Faculty of Medicine, University of Debrecen, 4032 Debrecen, Hungary; (G.U.); (T.K.); (A.V.); (E.K.); (B.R.); (S.S.); (E.M.); (A.S.); (C.H.); (K.U.)
| | - Endre Kókai
- Department of Medical Chemistry, Faculty of Medicine, University of Debrecen, 4032 Debrecen, Hungary; (G.U.); (T.K.); (A.V.); (E.K.); (B.R.); (S.S.); (E.M.); (A.S.); (C.H.); (K.U.)
| | - Boglára Rauch
- Department of Medical Chemistry, Faculty of Medicine, University of Debrecen, 4032 Debrecen, Hungary; (G.U.); (T.K.); (A.V.); (E.K.); (B.R.); (S.S.); (E.M.); (A.S.); (C.H.); (K.U.)
| | - Szandra Schwarcz
- Department of Medical Chemistry, Faculty of Medicine, University of Debrecen, 4032 Debrecen, Hungary; (G.U.); (T.K.); (A.V.); (E.K.); (B.R.); (S.S.); (E.M.); (A.S.); (C.H.); (K.U.)
| | - Edit Mikó
- Department of Medical Chemistry, Faculty of Medicine, University of Debrecen, 4032 Debrecen, Hungary; (G.U.); (T.K.); (A.V.); (E.K.); (B.R.); (S.S.); (E.M.); (A.S.); (C.H.); (K.U.)
| | - Eszter Janka
- Department of Dermatology, Faculty of Medicine, University of Debrecen, 4032 Debrecen, Hungary;
| | - Adrienn Sipos
- Department of Medical Chemistry, Faculty of Medicine, University of Debrecen, 4032 Debrecen, Hungary; (G.U.); (T.K.); (A.V.); (E.K.); (B.R.); (S.S.); (E.M.); (A.S.); (C.H.); (K.U.)
| | - Csaba Hegedűs
- Department of Medical Chemistry, Faculty of Medicine, University of Debrecen, 4032 Debrecen, Hungary; (G.U.); (T.K.); (A.V.); (E.K.); (B.R.); (S.S.); (E.M.); (A.S.); (C.H.); (K.U.)
| | - Karen Uray
- Department of Medical Chemistry, Faculty of Medicine, University of Debrecen, 4032 Debrecen, Hungary; (G.U.); (T.K.); (A.V.); (E.K.); (B.R.); (S.S.); (E.M.); (A.S.); (C.H.); (K.U.)
| | - Péter Nagy
- Department of Biophysics and Cell Biology, Faculty of Medicine, University of Debrecen, 4032 Debrecen, Hungary;
| | - Peter Bai
- Department of Medical Chemistry, Faculty of Medicine, University of Debrecen, 4032 Debrecen, Hungary; (G.U.); (T.K.); (A.V.); (E.K.); (B.R.); (S.S.); (E.M.); (A.S.); (C.H.); (K.U.)
- MTA-DE Lendület Laboratory of Cellular Metabolism, 4032 Debrecen, Hungary
- Research Center for Molecular Medicine, Faculty of Medicine, University of Debrecen, 4032 Debrecen, Hungary
- ELKH-DE Cell Biology and Signaling Research Group ELKH, 4032 Debrecen, Hungary
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Jankó L, Tóth E, Laczik M, Rauch B, Janka E, Bálint BL, Bai P. PARP2 poly(ADP-ribosyl)ates nuclear factor erythroid 2-related factor 2 (NRF2) affecting NRF2 subcellular localization. Sci Rep 2023; 13:7869. [PMID: 37188809 DOI: 10.1038/s41598-023-35076-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2023] [Accepted: 05/12/2023] [Indexed: 05/17/2023] Open
Abstract
PARP2 is a member of the PARP enzyme family. Although, PARP2 plays role in DNA repair, it has regulatory roles in mitochondrial and lipid metabolism, it has pivotal role in bringing about the adverse effects of pharmacological PARP inhibitors. Previously, we showed that the ablation of PARP2 induces oxidative stress and, consequently, mitochondrial fragmentation. In attempt to identify the source of the reactive species we assessed the possible role of a central regulator of cellular antioxidant defense, nuclear factor erythroid 2-related factor 2 (NRF2). The silencing of PARP2 did not alter either the mRNA or the protein expression of NRF2, but changed its subcellular localization, decreasing the proportion of nuclear, active fraction of NRF2. Pharmacological inhibition of PARP2 partially restored the normal localization pattern of NRF2 and in line with that, we showed that NRF2 is PARylated that is absent in the cells in which PARP2 was silenced. Apparently, the PARylation of NRF2 by PARP2 has pivotal role in regulating the subcellular (nuclear) localization of NRF2. The silencing of PARP2 rearranged the expression of genes encoding proteins with antioxidant function, among these a subset of NRF2-dependent genes.
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Affiliation(s)
- Laura Jankó
- Department of Medical Chemistry, Faculty of Medicine, University of Debrecen, Egyetem Tér 1., 4032, Debrecen, Hungary
- Center of Excellence, The Hungarian Academy of Sciences, Budapest, Hungary
| | - Emese Tóth
- Department of Medical Chemistry, Faculty of Medicine, University of Debrecen, Egyetem Tér 1., 4032, Debrecen, Hungary
- Center of Excellence, The Hungarian Academy of Sciences, Budapest, Hungary
| | - Miklós Laczik
- Department of Biochemistry and Molecular Biology, Faculty of Medicine, University of Debrecen, Debrecen, 4032, Hungary
| | - Boglárka Rauch
- Department of Medical Chemistry, Faculty of Medicine, University of Debrecen, Egyetem Tér 1., 4032, Debrecen, Hungary
- Center of Excellence, The Hungarian Academy of Sciences, Budapest, Hungary
| | - Eszter Janka
- Department of Dermatology, Faculty of Medicine, University of Debrecen, Debrecen, 4032, Hungary
| | - Bálint L Bálint
- Department of Biochemistry and Molecular Biology, Faculty of Medicine, University of Debrecen, Debrecen, 4032, Hungary
- Department of Bioinformatics, Semmelweis University, Tűzoltó Utca 7-9., Budapest, 1094, Hungary
| | - Péter Bai
- Department of Medical Chemistry, Faculty of Medicine, University of Debrecen, Egyetem Tér 1., 4032, Debrecen, Hungary.
- Center of Excellence, The Hungarian Academy of Sciences, Budapest, Hungary.
- MTA-DE Lendület Laboratory of Cellular Metabolism, Debrecen, 4032, Hungary.
- Research Center for Molecular Medicine, Faculty of Medicine, University of Debrecen, Debrecen, 4032, Hungary.
- MTA-DE Cell Biology and Signaling Research Group ELKH, Debrecen, Hungary.
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Sándor J, Janka E, Vincze F, Ádány R. External classification for ethnicity in health survey to monitor Roma vs non-Roma differences. Eur J Public Health 2020. [DOI: 10.1093/eurpub/ckaa166.561] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Abstract
Background
The Roma population of European countries is characterized by a poor and poorly described health status. The lack of detailed data on health loss among Roma can be partly attributed to legal limitations based lack of reliable methodology to effectively identify them. On the other hand, it is among factors responsible for restricted effectiveness of policy to narrow gap between Roma and non-Roma health status.
Objectives
We aimed to compare directly results from population based health survey on Roma vs non-Roma differences based on self-declared and observer-reported Roma classification.
Methods
In a population based health interview survey of random sample of 1849 subjects aged 18-64 years representing 965680 adults, both self-reporting and observer-reporting on Roma was applied. Data collection covered 52 indicators of morbidity, functional loss, health behavior, social capital, and use of health services. Health status differences between the self-declared Roma (N = 124) and the non-Roma (N = 1725) as well as the observer-reported Roma (N = 179) and non-Roma populations (N = 1670) were described by logistic regression models controlled for age, sex, education and employment.
Results
There was no significant Roma vs non-Roma difference in the respect of 33 indicators, and 14 indicators showed significant difference by both Roma definitions. Differences between the observer- and self-reported Roma ethnicity in statistical inference were observed for 7 indicators. In ascertaining significant Roma vs non-Roma difference, self-reporting was more effective for 2, and observer-reporting was for 5 indicators.
Conclusions
The application of observer-reported ethnicity classification cannot increase the practical value of health survey on Roma to non-Roma differences, compared to the self-reporting based approach. Therefore, the use of observer-reported Roma ethnicity in health surveys to improve the reliability of Roma specific indicators seems to be not justified.
Key messages
Application of external classification for ethnicity cannot increase the effectiveness of population based health interview survey in monitoring Roma vs non-Roma differences. The use of observer-reported Roma ethnicity in health surveys to improve the reliability of Roma specific indicators seems to be not justified.
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Affiliation(s)
- J Sándor
- University of Debrecen, Debrecen, Hungary
| | - E Janka
- Division of Dermatology, University of Debrecen, Debrecen, Hungary
| | - F Vincze
- Faculty of Public Health, University of Debrecen, Debrecen, Hungary
| | - R Ádány
- Publich Health Research Institute, University of Debrecen, Debrecen, Hungary
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Gellén E, Fidrus E, Janka E, Kollár S, Paragh G, Emri G, Remenyik É. 5-Aminolevulinic acid photodynamic therapy with and without Er:YAG laser for actinic keratosis: Changes in immune infiltration. Photodiagnosis Photodyn Ther 2019; 26:270-276. [DOI: 10.1016/j.pdpdt.2019.04.010] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2019] [Revised: 03/29/2019] [Accepted: 04/10/2019] [Indexed: 12/18/2022]
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Márton É, Lukács J, Penyige A, Janka E, Hegedüs L, Soltész B, Méhes G, Póka R, Nagy B, Szilágyi M. Circulating epithelial-mesenchymal transition-associated miRNAs are promising biomarkers in ovarian cancer. J Biotechnol 2019; 297:58-65. [DOI: 10.1016/j.jbiotec.2019.04.003] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2019] [Revised: 04/01/2019] [Accepted: 04/01/2019] [Indexed: 01/28/2023]
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Emri G, Paragh G, Tósaki Á, Janka E, Kollár S, Hegedűs C, Gellén E, Horkay I, Koncz G, Remenyik É. Ultraviolet radiation-mediated development of cutaneous melanoma: An update. J Photochem Photobiol B 2018; 185:169-175. [PMID: 29936410 DOI: 10.1016/j.jphotobiol.2018.06.005] [Citation(s) in RCA: 44] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/29/2018] [Revised: 05/07/2018] [Accepted: 06/13/2018] [Indexed: 12/11/2022]
Abstract
Ultraviolet (UV) light is absorbed by nucleic acids, proteins or other endogenous chromophores, such as porphyrins, flavins and melanin, triggering biological processes in skin cells. Both UV-induced mutations in melanocytes and changes in the immune microenvironment are understood to play a role in the development of cutaneous melanoma. The degree of UV-induced stress and the protection against this stress are influenced by both intracellular and intercellular molecular interactions. The present review summarizes the known major molecular biological changes induced by UV light in the skin that play a role in melanoma initiation and promotion. Nevertheless, cutaneous melanoma is not a homogenous disease, and the interaction of variable environmental exposure and different genetic susceptibility and other host factors lead to the formation of melanomas with different biological behavior and clinical characteristics. This review highlights the challenges in the understanding of how UV radiation contributes to the formation of cutaneous melanoma, and reviews the new results of photobiology and their link to tumor genetics and tumor immunology with potential implications on melanoma prevention and therapeutic strategies. The information presented here is expected to add clarity to ongoing research efforts in this field to aid the development of novel strategies to prevent and treat melanoma.
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Affiliation(s)
- Gabriella Emri
- Department of Dermatology, University of Debrecen, Debrecen, Hungary.
| | - György Paragh
- Department of Dermatology, Roswell Park Comprehensive Cancer Center, Buffalo, New York, USA; Department of Cell Stress Biology, Roswell Park Cancer Institute, Buffalo, New York, USA
| | - Ágnes Tósaki
- Department of Dermatology, University of Debrecen, Debrecen, Hungary
| | - Eszter Janka
- Department of Dermatology, University of Debrecen, Debrecen, Hungary
| | - Sándor Kollár
- Department of Pathology, Kenézy Gyula Hospital, Debrecen, Hungary
| | - Csaba Hegedűs
- Department of Dermatology, University of Debrecen, Debrecen, Hungary
| | - Emese Gellén
- Department of Dermatology, University of Debrecen, Debrecen, Hungary
| | - Irén Horkay
- Department of Dermatology, University of Debrecen, Debrecen, Hungary
| | - Gábor Koncz
- Department of Immunology, University of Debrecen, Debrecen, Hungary
| | - Éva Remenyik
- Department of Dermatology, University of Debrecen, Debrecen, Hungary
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Gellén E, Janka E, Tamás I, Ádám B, Horkay I, Emri G, Remenyik É. Pigmented naevi and sun protection behaviour among primary and secondary school students in an Eastern Hungarian city. Photodermatol Photoimmunol Photomed 2015; 32:98-106. [PMID: 26477694 DOI: 10.1111/phpp.12219] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 10/12/2015] [Indexed: 02/02/2023]
Abstract
BACKGROUND The most important risk factors for malignant melanoma are skin type I or II, large number of atypical naevi and a history of sunburn in childhood and adolescence. METHODS A cross-sectional study was performed to assess skin type, number of pigmented lesions and sun protection behaviour in 1157 12- to 19-year-old Hungarian students at 20 primary and secondary schools in Debrecen, Hungary. After receiving dermatological training, 18 school doctors examined the students' skin. A questionnaire was completed by the students with the assistance of their parents about sun protection, sunburns and the use of sunbed. Data from 612 questionnaires were evaluated. RESULTS Based on the doctors' evaluation, most of the pupils were classified as having skin type II and majority of them had 5-20 naevi, particularly on the trunk. Based on the student's response, 5.2% purposely sunbathed daily, 10.1% did not use any form of sun protection, 32.2% wore sun-protective clothing and 65.7% applied sunscreen generally. 6.9% used sunbed, and 74.0% previously experienced serious sunburn at least once. Indoor tanning statistically correlated with the number of melanocytic naevi. CONCLUSION A high prevalence of sunburn was reported by the students and some of them did not apply any sun protection methods but used sunbed at a critical age for developing melanoma at a later time. These data highlight the importance of educating children and parents about appropriate sun protection.
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Affiliation(s)
- Emese Gellén
- Department of Dermatology, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
| | - Eszter Janka
- Department of Dermatology, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
| | - Ildikó Tamás
- Department of Dermatology, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
| | - Balázs Ádám
- Department of Preventive Medicine, Faculty of Public Health, University of Debrecen, Debrecen, Hungary.,Institute of Public Health, College of Medicine and Health Sciences, United Arab Emirates University, Al Ain, United Arab Emirates
| | - Irene Horkay
- Department of Dermatology, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
| | - Gabriella Emri
- Department of Dermatology, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
| | - Éva Remenyik
- Department of Dermatology, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
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Gellén E, Sántha O, Janka E, Juhász I, Péter Z, Erdei I, Lukács R, Fedinecz N, Galuska L, Remenyik É, Emri G. Diagnostic accuracy of (18)F-FDG-PET/CT in early and late stages of high-risk cutaneous malignant melanoma. J Eur Acad Dermatol Venereol 2015; 29:1938-44. [PMID: 25753249 DOI: 10.1111/jdv.13084] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2014] [Accepted: 01/27/2015] [Indexed: 02/05/2023]
Abstract
BACKGROUND The precise role of total body (18) F-fluorodeoxyglucose-positron emission tomography/computed tomography (PET/CT) in the clinical management of patients with cutaneous malignant melanoma (CMM) is not well established. OBJECTIVE The purpose of this study was to investigate the diagnostic accuracy of PET/CT in early- and late-stage patients with high-risk CMM. METHODS We retrospectively analysed various imaging, histopathological and clinical data from 97 patients also examined by PET/CT during a 5-year period (2007-2011). Three groups were assessed: stage I/II, resected stage III and unresectable stage III/stage IV. RESULTS The median follow-up time of living patients was 43.48 ± 19.67 (15-142) months. We observed a high diagnostic accuracy in all stages (91.3%, 92.5% and 96.2% respectively). PET/CT appeared to be reliable diagnostic tool even for the detection of small lymph node metastases. PET/CT was informative in 14 of 19 cases wherein another imaging examination provided inconclusive results regarding lesion dignity. However, PET/CT was less suitable for properly evaluating the dignity of a lung lesion. A true positive scan was twice as likely in clinically negative patients with resected stage III disease than in patients with stage I/II disease (35.9% and 14.5%, P = 0.007). CONCLUSIONS These results confirm that PET/CT is an important diagnostic tool in the management of patients with high-risk CMM, but it cannot replace the standard of care examinations. More accurate clinicopathological and timing criteria must be defined to best utilize the advantages of this imaging method.
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Affiliation(s)
- E Gellén
- Department of Dermatology, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
| | - O Sántha
- Scanomed Ltd., Debrecen, Hungary
| | - E Janka
- Department of Dermatology, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
| | - I Juhász
- Department of Dermatology, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
| | - Z Péter
- Department of Dermatology, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
| | - I Erdei
- Department of Dermatology, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
| | - R Lukács
- Faculty of Medicine, University of Debrecen, Debrecen, Hungary
| | | | - L Galuska
- Department of Nuclear Medicine, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
| | - É Remenyik
- Department of Dermatology, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
| | - G Emri
- Department of Dermatology, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
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Kiss LS, Papp M, Lovasz BD, Vegh Z, Golovics PA, Janka E, Varga E, Szathmari M, Lakatos PL. High-sensitivity C-reactive protein for identification of disease phenotype, active disease, and clinical relapses in Crohn's disease: a marker for patient classification? Inflamm Bowel Dis 2012; 18:1647-54. [PMID: 22081542 DOI: 10.1002/ibd.21933] [Citation(s) in RCA: 52] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/27/2011] [Accepted: 10/02/2011] [Indexed: 12/13/2022]
Abstract
BACKGROUND C-reactive protein (CRP) is a traditional nonspecific marker of inflammation, with Crohn's disease (CD) being associated with a strong CRP response. Thus far, no clear cutoff values have been determined. The authors' aim was to investigate whether high-sensitivity (hs)-CRP is useful for the identification disease phenotype, active disease, and relapse during follow-up, using a classification based on the hs-CRP value at diagnosis. METHODS In all, 260 well-characterized, unrelated, consecutive CD patients (male/female: 120/140; duration: 7.0 ± 6.1 years), with a complete clinical follow-up, were included. Hs-CRP, clinical activity according to the Harvey-Bradshaw Index, and clinical data (disease phenotype according to the Montreal Classification, extraintestinal manifestations, smoking habits, medical therapy, and surgical events) were prospectively collected between January 1, 2008 and June 1, 2010. Medical records prior to the prospective follow-up period were analyzed retrospectively. RESULTS In all, 32.3% of CD patients had normal hs-CRP at diagnosis. Elevated hs-CRP at diagnosis was associated with disease location (P = 0.002), noninflammatory disease behavior (P = 0.058), and a subsequent need for later azathioprine/biological therapy (P < 0.001 and P = 0.024), respectively. The accuracy of hs-CRP for identifying patients with active disease during prospective follow-up was good (area under the curve [AUC]: 0.82, cutoff: 10.7 mg/L). AUC was better in patients with an elevated hs-CRP at diagnosis (AUC: 0.92, cutoff: 10.3 mg/L). In Kaplan-Meier and Cox-regression analyses, hs-CRP was an independent predictor of 3- (P = 0.007) or 12-month (P = 0.001) clinical relapses for patients in remission who had elevated hs-CRP at diagnosis. In addition, perianal involvement (P = 0.01) was associated with the 12-month relapse frequency. CONCLUSIONS Our data suggest that hs-CRP positivity at diagnosis is associated with disease location and behavior, and in patients who are hs-CRP positive at diagnosis, is an accurate marker of disease activity and a predictor of short- and medium-term clinical flare-ups during follow-up.
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Affiliation(s)
- Lajos Sandor Kiss
- 1st Department of Medicine, Semmelweis University, Budapest, Hungary
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