1
|
Wang Q, Qiu Z, Cheng L, Xu S, Li H, Guo J, Zhang X. Is diet related to skin condition? A Mendelian randomization study. Arch Dermatol Res 2024; 316:328. [PMID: 38824251 DOI: 10.1007/s00403-024-03103-z] [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: 04/07/2024] [Revised: 04/07/2024] [Accepted: 04/26/2024] [Indexed: 06/03/2024]
Abstract
Observational studies have revealed associations between various dietary factors and skin conditions. However, the causal relationship between diet and skin condition is still unknown. Data on 17 dietary factors were obtained from the UK Biobank. Data on four skin conditions were derived from the UK Biobank and another large-scale GWAS study. Genetic predictions suggested that the intake of oily fish was associated with a lower risk of skin aging (OR: 0.962, P = 0.036) and skin pigmentation (OR: 0.973, P = 0.033); Tea intake was associated with a lower risk of skin pigmentation (OR: 0.972, P = 0.024); Salad/raw vegetables intake was associated with a lower risk of keratinocyte skin cancer (OR: 0.952, P = 0.007). Coffee intake was associated with increased risk of skin aging (OR: 1.040, P = 0.028); Pork intake was associated with increased risk of skin aging (OR: 1.134, P = 0.020); Beef intake was associated with increased risk of cutaneous melanoma (OR: 1.013, P = 0.016); Champagne plus white wine intake was associated with increased risk of cutaneous melanoma (OR: 1.033, P = 0.004); Bread intake was associated with increased risk of keratinocyte skin cancer (OR: 1.026, P = 0.013). Our study results indicate causal relationships between genetically predicted intake of oily fish, tea, salad/raw vegetables, coffee, pork, beef, champagne plus white wine, and bread and skin conditions.
Collapse
Affiliation(s)
- Qinyuan Wang
- Department of Plastic Surgery, The Second Hospital and Clinical Medical School, Lanzhou University, Lanzhou, 730000, Gansu, China
- The Second Hospital and Clinical Medical School, Lanzhou University, Lanzhou, 730000, Gansu, China
| | - Zeming Qiu
- The Second Hospital and Clinical Medical School, Lanzhou University, Lanzhou, 730000, Gansu, China
| | - Long Cheng
- The Second Hospital and Clinical Medical School, Lanzhou University, Lanzhou, 730000, Gansu, China
| | - Siping Xu
- Department of Plastic Surgery, The Second Hospital and Clinical Medical School, Lanzhou University, Lanzhou, 730000, Gansu, China
- The Second Hospital and Clinical Medical School, Lanzhou University, Lanzhou, 730000, Gansu, China
| | - Honggang Li
- Department of Plastic Surgery, The Second Hospital and Clinical Medical School, Lanzhou University, Lanzhou, 730000, Gansu, China
- The Second Hospital and Clinical Medical School, Lanzhou University, Lanzhou, 730000, Gansu, China
| | - Jingjing Guo
- Department of Plastic Surgery, The Second Hospital and Clinical Medical School, Lanzhou University, Lanzhou, 730000, Gansu, China
- The Second Hospital and Clinical Medical School, Lanzhou University, Lanzhou, 730000, Gansu, China
| | - Xuanfen Zhang
- Department of Plastic Surgery, The Second Hospital and Clinical Medical School, Lanzhou University, Lanzhou, 730000, Gansu, China.
- The Second Hospital and Clinical Medical School, Lanzhou University, Lanzhou, 730000, Gansu, China.
| |
Collapse
|
2
|
Hao X, Lai W, Xia X, Xu J, Wu Y, Lv C, Meng Q, Lv K, Huang S, Luo Z, Dong J, Yuan Q. Skin cancer outcomes and risk factors in renal transplant recipients: Analysis of organ procurement and transplantation network data from 2000 to 2021. Front Oncol 2022; 12:1017498. [PMID: 36505816 PMCID: PMC9731355 DOI: 10.3389/fonc.2022.1017498] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2022] [Accepted: 11/03/2022] [Indexed: 11/25/2022] Open
Abstract
Purpose Posttransplant skin cancer is the most common malignancy after patients have undergone renal transplantation. Through comprehensive observation with a large sample size nationwide, understanding the risk factors and outcome of posttransplant skin cancer will help to develop appropriate patient surveillance and disease prevention strategies. Materials and methods This retrospective population-based cohort study was based on Organ Procurement and Transplantation Network data released in March 2021. Characteristics and outcomes, including patient survival and graft survival of recipients, were compared. Risk factors for posttransplant skin cancer, cancer onset momentum, and mortality were determined. Results A total of 199,564 renal transplant recipients were included. After renal transplantation, 7,334 (3.68%), 6,093 (3.05%), and 936 (0.47%) were diagnosed with squamous cell carcinoma, basal cell carcinoma, and melanoma, respectively. Skin cancer was the major cause of death (squamous cell carcinoma: 23.8%, basal cell carcinoma: 18%, and melanoma: 41.6%). Five-year survival rates ranked from best to worst were as follows: basal cell carcinoma (96.7 [95% confidence interval: 96.3-97.2]%), squamous cell carcinoma (94.1 [93.5-94.6]%), melanoma (89.7 [87.7-91.6]%), and cancer-free (87.4 [87.2-87.5]%) (p < 0.001 for all except melanoma vs. cancer-free, p = 0.534). Regarding graft survival, death-censored graft survival, posttransplant skin cancer, and melanoma were significantly better than the cancer-free group (p < 0.001). Independent risk factors for developing posttransplant skin cancer included older age, male sex, Caucasian race, pretransplant malignancy, polycystic kidney disease-induced end-stage renal disease (ESRD), retransplantation, private health insurance, T-cell depletion induction, and tacrolimus/mycophenolic acid use. Caucasian race and pretransplant malignancy were independent risk factors for posttransplant skin cancer onset momentum. Male sex, Caucasian race, pretransplant malignancy, hypertension- or diabetes-induced ESRD, retransplantation, diabetes history, deceased donor, cyclosporin, and mTOR inhibitor use were independent risk factors for posttransplant skin cancer mortality. Conclusion Although posttransplant skin cancer is a major cause of recipient death, information regarding its impact on patient and graft survival is limited. Given the differences regarding risk factors for posttransplant skin cancer incidence, onset momentum, and mortality, personalized approaches to screening may be appropriate to address the complex issues encountered by kidney transplant recipients.
Collapse
Affiliation(s)
- Xiaowei Hao
- Department of Urology, The Third Medical Center, Chinese PLA General Hospital, Beijing, China,Department of Urology, No.971 Hospital of PLA Navy, Tsingtao, Shandong, China
| | - Wenhui Lai
- Department of Urology, The Third Medical Center, Chinese PLA General Hospital, Beijing, China,Department of Postgraduate, Hebei North University, Zhangjiakou, Hebei, China
| | - Xinze Xia
- Department of Urology, The Third Medical Center, Chinese PLA General Hospital, Beijing, China,Department of Urology, Shanxi Medical University, Taiyuan, Shanxi, China
| | - Junnan Xu
- Department of Urology, The Third Medical Center, Chinese PLA General Hospital, Beijing, China
| | - Yangyang Wu
- Department of Urology, The Third Medical Center, Chinese PLA General Hospital, Beijing, China
| | - Chao Lv
- Department of Urology, The Third Medical Center, Chinese PLA General Hospital, Beijing, China
| | - Qingyang Meng
- Department of Urology, The Third Medical Center, Chinese PLA General Hospital, Beijing, China
| | - Kaikai Lv
- Department of Urology, The Third Medical Center, Chinese PLA General Hospital, Beijing, China
| | - Shuai Huang
- Department of Urology, The Third Medical Center, Chinese PLA General Hospital, Beijing, China,Department of Postgraduate, Hebei North University, Zhangjiakou, Hebei, China
| | - Zhenjun Luo
- Department of Urology, The Third Medical Center, Chinese PLA General Hospital, Beijing, China,Affiliated Hospital of Weifang Medical University, School of Clinical Medicine, Weifang Medical University, Weifang, China
| | - Jun Dong
- Department of Urology, The Third Medical Center, Chinese PLA General Hospital, Beijing, China,*Correspondence: Jun Dong, ; Qing Yuan,
| | - Qing Yuan
- Department of Urology, The Third Medical Center, Chinese PLA General Hospital, Beijing, China,*Correspondence: Jun Dong, ; Qing Yuan,
| |
Collapse
|
3
|
Griffin L, Ho L, Akhurst RJ, Arron ST, Boggs JME, Conlon P, O'Kelly P, Toland AE, Epstein EH, Balmain A, Bastian BC, Moloney FJ, Murphy GM, Laing ME. Genetic polymorphism in Methylenetetrahydrofolate Reductase chloride transport protein 6 ( MTHFR CLCN6) gene is associated with keratinocyte skin cancer in a cohort of renal transplant recipients. SKIN HEALTH AND DISEASE 2022; 2:e95. [PMID: 35677930 PMCID: PMC9168012 DOI: 10.1002/ski2.95] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/16/2021] [Revised: 01/10/2022] [Accepted: 01/13/2022] [Indexed: 12/18/2022]
Abstract
Background Renal transplant recipients (RTRs) are at increased risk of keratinocyte cancer (KC), especially cutaneous squamous cell carcinoma (cSCC). Previous studies identified a genetic variant of the Methylenetetrahydrofolate Reductase (MTHFR) gene, C677T, which conferred a risk for diagnosis of cSCC in Irish RTRs. Objective We sought to find further genetic variation in MTHFR and overlap genes that may be associated with a diagnosis of KC in RTRs. Methods Genotyping of a combined RTR population (n = 821) from two centres, Ireland (n = 546) and the USA (n = 275), was performed. This included 290 RTRs with KC and 444 without. Eleven single nucleotide polymorphisms (SNPs) in the MTHFR gene and seven in the overlap gene MTHFR Chloride transport protein 6 (CLCN6) were evaluated and association explored by time to event analysis (from transplant to first KC) using Cox proportional hazards model. Results Polymorphism at MTHFR CLCN6 (rs9651118) was significantly associated with KC in RTRs (HR 1.50, 95% CI 1.17–1.91, p < 0.00061) and cSCC (HR 1.63, 95% CI 1.14–2.34, p = 0.007). A separate SNP, MTHFR C677T, was also significantly associated with KC in the Irish population (HR 1.31, 95% CI 1.05–1.63, p = 0.016), but not American RTRs. Conclusions We report the association of a SNP in the MTHFR overlap gene, CLCN6 and KC in a combined RTR population. While the exact function of CLCN6 is not known, it is proposed to be involved in folate availability. Future applications could include incorporation in a polygenic risk score for KC in RTRs to help identify those at increased risk beyond traditional risk factor assessment.
Collapse
Affiliation(s)
- L Griffin
- Department of Dermatology University Hospital Galway Galway Ireland
| | - L Ho
- Department of Dermatology Beaumont Hospital Dublin 9 Ireland
| | - R J Akhurst
- Helen Diller Family Comprehensive Cancer Center University of California San Francisco California USA
| | - S T Arron
- Helen Diller Family Comprehensive Cancer Center University of California San Francisco California USA
| | - J M E Boggs
- Department of Dermatology University Hospital Galway Galway Ireland
| | - P Conlon
- Department of Nephrology Beaumont Hospital Dublin 9 Ireland
| | - P O'Kelly
- Department of Nephrology Beaumont Hospital Dublin 9 Ireland
| | - A E Toland
- Department of Molecular Virology, Immunology and Medical Genetics Comprehensive Cancer Centre Ohio State University Columbus Ohio USA
| | - E H Epstein
- Helen Diller Family Comprehensive Cancer Center University of California San Francisco California USA
| | - A Balmain
- Helen Diller Family Comprehensive Cancer Center University of California San Francisco California USA
| | - B C Bastian
- Helen Diller Family Comprehensive Cancer Center University of California San Francisco California USA
| | - F J Moloney
- Department of Dermatology Beaumont Hospital Dublin 9 Ireland
| | - G M Murphy
- Department of Dermatology Beaumont Hospital Dublin 9 Ireland
| | - M E Laing
- Department of Dermatology University Hospital Galway Galway Ireland.,Department of Dermatology Beaumont Hospital Dublin 9 Ireland.,Department of Medicine National University of Ireland Galway Ireland
| |
Collapse
|
4
|
Cutaneous squamous cell carcinoma arising in immunosuppressed patients: a systematic review of tumor profiling studies. JID INNOVATIONS 2022; 2:100126. [PMID: 35620703 PMCID: PMC9127418 DOI: 10.1016/j.xjidi.2022.100126] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2021] [Revised: 02/08/2022] [Accepted: 03/04/2022] [Indexed: 12/01/2022] Open
Abstract
As solid organ transplantation becomes more prevalent, more individuals are living as members of the immunosuppressed population with an elevated risk for cutaneous squamous cell carcinoma (cSCC). Although great progress has been made in understanding the pathogenesis of cSCC in general, little is known about the drivers of tumorigenesis in immunosuppressed patients and organ-transplant recipients, specifically. This systematic review sought to synthesize information regarding the genetic and epigenetic alterations as well as changes in protein and mRNA expression that place this growing population at risk for cSCC, influence treatment response, and promote tumor aggressiveness. This review will provide investigators with a framework to identify future areas of investigation and clinicians with additional insight into how to best manage these patients.
Collapse
|
5
|
Abstract
Nonmelanoma skin cancer (NMSC), the most widely diagnosed cancer in the United States, is rising in incidence despite public health and educational campaigns that highlight the importance of sun avoidance. It is,therefore, important to establish other modifiable risk factors that may be contributing to this increase. There is a growing body of evidence in the literature suggesting certain nutrients may have protective or harmful effects on NMSC. We review the current literature on nutrition and its effect on NMSC with a focus on dietary fat, vitamin A, nicotinamide, folate, vitamin C, vitamin D, vitamin E, polyphenols, and selenium.
Collapse
Affiliation(s)
- Victoria Stoj
- University of Connecticut School of Medicine, Farmington, Connecticut, USA
| | - Neda Shahriari
- Department of Dermatology, University of Connecticut Health Center, Farmington, Connecticut, USA
| | - Kimberly Shao
- Department of Dermatology, University of Connecticut Health Center, Farmington, Connecticut, USA
| | - Hao Feng
- Department of Dermatology, University of Connecticut Health Center, Farmington, Connecticut, USA.
| |
Collapse
|
6
|
Ritter A, Badir S, Mansour M, Segal Z, Ad-El D, Bachar G, Shpitzer T, Popovtzer A, Mizrachi A. Solid organ transplantation worsens the prognosis of patients with cutaneous squamous cell carcinoma of the head and neck region-Comparison between solid organ transplant recipients and immunocompetent patients. Head Neck 2020; 43:884-894. [PMID: 33247523 DOI: 10.1002/hed.26546] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2020] [Revised: 10/25/2020] [Accepted: 11/09/2020] [Indexed: 12/19/2022] Open
Abstract
BACKGROUND Cutaneous squamous cell carcinoma of the head and neck (CSCC-HN) appears to behave more aggressively in immunosuppressed patients. We aimed to investigate this hypothesis by comparing solid organ transplant recipients (SOTR) with CSCC-HN to immunocompetent patients. METHODS A retrospective comparative study was conducted for SOTR and immunocompetent patients who were treated for CSCC-HN. RESULTS A total of 177 SOTR and 157 immunocompetent patients with CSCC-HN were included. Lymph node metastases were more common in the SOTR group (9% vs 3%), and distant metastases occurred only in SOTR (3% of patients). SOTR had a higher rate of recurrences (19% vs 10%), which were mostly regional (7%) and distant (3%). The 2-year disease-specific survival of SOTR was lower (93% vs 100%). CONCLUSIONS SOTR with CSCC-HN has significantly worse outcomes compared to immunocompetent patients. Solid-organ transplantation should be regarded as a negative prognostic factor in patients with CSCC-HN.
Collapse
Affiliation(s)
- Amit Ritter
- Department of Otolaryngology Head and Neck Surgery, Rabin Medical Center, Petah Tikva, Israel.,Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - Samih Badir
- Department of Otolaryngology Head and Neck Surgery, Rabin Medical Center, Petah Tikva, Israel.,Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - Muhammad Mansour
- Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel.,Department of Plastic Surgery and Burns, Rabin Medical Center, Petah Tikva, Israel
| | - Zvi Segal
- Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel.,Department of Plastic Surgery and Burns, Rabin Medical Center, Petah Tikva, Israel
| | - Dean Ad-El
- Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel.,Department of Plastic Surgery and Burns, Rabin Medical Center, Petah Tikva, Israel
| | - Gideon Bachar
- Department of Otolaryngology Head and Neck Surgery, Rabin Medical Center, Petah Tikva, Israel.,Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - Thomas Shpitzer
- Department of Otolaryngology Head and Neck Surgery, Rabin Medical Center, Petah Tikva, Israel.,Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - Aron Popovtzer
- Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel.,Davidoff Cancer Center, Rabin Medical Center, Petah Tikva, Israel
| | - Aviram Mizrachi
- Department of Otolaryngology Head and Neck Surgery, Rabin Medical Center, Petah Tikva, Israel.,Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
| |
Collapse
|
7
|
Ritter A, Bachar G, Feinmesser R, Shpitzer T, Popovtzer A, Rabinovics N. Nonmelanoma skin cancer of the head and neck region in solid organ transplant recipients. Head Neck 2018; 41:374-380. [DOI: 10.1002/hed.25467] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2018] [Accepted: 08/17/2018] [Indexed: 01/20/2023] Open
Affiliation(s)
- Amit Ritter
- Department of Otolaryngology, Head and Neck SurgeryRabin Medical Center Petach Tikva Israel
| | - Gideon Bachar
- Department of Otolaryngology, Head and Neck SurgeryRabin Medical Center Petach Tikva Israel
| | - Raphael Feinmesser
- Department of Otolaryngology, Head and Neck SurgeryRabin Medical Center Petach Tikva Israel
| | - Thomas Shpitzer
- Department of Otolaryngology, Head and Neck SurgeryRabin Medical Center Petach Tikva Israel
| | - Aron Popovtzer
- Institute of Oncology, Davidoff CenterRabin Medical Center Petach Tikva Israel
| | - Naomi Rabinovics
- Department of Otolaryngology, Head and Neck SurgeryRabin Medical Center Petach Tikva Israel
| |
Collapse
|
8
|
Stapleton CP, Conlon PJ, Phelan PJ. Using omics to explore complications of kidney transplantation. Transpl Int 2017; 31:251-262. [PMID: 28892567 DOI: 10.1111/tri.13067] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2017] [Revised: 06/26/2017] [Accepted: 09/05/2017] [Indexed: 12/12/2022]
Abstract
The importance of genetic and biochemical variation in renal transplant outcomes has been clear since the discovery of the HLA in the 1950s. Since that time, there have been huge advancements in both transplantation and omics. In recent years, there has seen an increased number of genome-, proteome- and transcriptome-wide studies in the field of transplantation moving away from the earlier candidate gene/protein approaches. These areas have the potential to lead to the development of personalized treatment depending on individual molecular risk profiles. Here, we discuss recent progress and the current literature surrounding omics and renal transplant complications.
Collapse
Affiliation(s)
- Caragh P Stapleton
- Department of Molecular and Cellular Therapeutics, The Royal College of Surgeons in Ireland, Dublin, Ireland
| | - Peter J Conlon
- Department of Nephrology, Beaumont Hospital, Dublin, Ireland.,Department of Medicine, The Royal College of Surgeons in Ireland, Dublin, Ireland
| | - Paul J Phelan
- Department of Nephrology, Royal Infirmary of Edinburgh, NHS Lothian, Edinburgh, United Kingdom
| |
Collapse
|
9
|
Daunting but Worthy Goal: Reducing the De Novo Cancer Incidence After Transplantation. Transplantation 2017; 100:2569-2583. [PMID: 27861286 DOI: 10.1097/tp.0000000000001428] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Solid-organ transplant recipients are at increased risk of developing de novo malignancies compared with the general population, and malignancies become a major limitation in achieving optimal outcomes. The prevention and the management of posttransplant malignancies must be considered as a main goal in our transplant programs. For these patients, immunosuppression plays a major role in oncogenesis by both impairement of immunosurveillance, enhancement of chronic viral infection, and by direct prooncogenic effects. It is essential to manage the recipient with a long-term adapted screening program beginning before transplantation to use a prophylaxis to decrease infection-related cancer, to propose a viral monitoring, and to modulate the immunosuppression toward lower doses especially for calcineurin inhibitors. Indeed, strategies to induce tolerance or to allow a dramatic reduction of the immunosuppression burden are the more promising approaches for the reduction of the posttransplant malignancies.
Collapse
|
10
|
High-risk cutaneous malignancies and immunosuppression: Challenges for the reconstructive surgeon in the renal transplant population. J Plast Reconstr Aesthet Surg 2017; 70:922-930. [PMID: 28457679 DOI: 10.1016/j.bjps.2017.03.005] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2016] [Revised: 03/08/2017] [Accepted: 03/11/2017] [Indexed: 02/02/2023]
Abstract
Renal transplantation is the most frequently performed transplant procedure. Immunosuppressive therapies have dramatically increased survival rates in transplant recipients but are associated with an increased risk of skin cancers. Recent changes in immunosuppressive strategies have been adopted with the aim of reducing this challenging adverse effect. Despite these new strategies, cutaneous malignancies tend to be numerous, aggressive and associated with a higher risk of local and distant dissemination than in the non-transplant population. This represents a significant workload for transplant physicians, dermatologists, and head and neck and plastic surgeons. This review highlights key concepts in the pathogenesis of skin cancer in transplant patients, the impact current and evolving immunosuppressive strategies and regimens will have on the epidemiology, and the management of cutaneous malignancies in renal transplant patients, with particular focus on the implications for the plastic surgery community.
Collapse
|
11
|
Maier M, Takano T, Sapir-Pichhadze R. Changing Paradigms in the Management of Rejection in Kidney Transplantation: Evolving From Protocol-Based Care to the Era of P4 Medicine. Can J Kidney Health Dis 2017; 4:2054358116688227. [PMID: 28270929 PMCID: PMC5308536 DOI: 10.1177/2054358116688227] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2016] [Accepted: 11/17/2016] [Indexed: 12/30/2022] Open
Abstract
PURPOSE OF REVIEW P4 medicine denotes an evolving field of medicine encompassing predictive, preventive, personalized, and participatory medicine. Using the example of kidney allograft rejection because of donor-recipient incompatibility in human leukocyte antigens, this review outlines P4 medicine's relevance to the various stages of the kidney transplant cycle. SOURCES OF INFORMATION A search for English articles was conducted in Medline via OvidSP (up to August 18, 2016) using a combination of subject headings (MeSH) and free text in titles, abstracts, and author keywords for the concepts kidney transplantation and P4 medicine. The electronic database search was expanded further on particular subject headings. FINDINGS Available histocompatibility methods exemplify current applications of the predictive and preventive domains of P4 medicine in kidney transplant recipients' care. Pharmacogenomics are discussed as means to facilitate personalized immunosuppression regimens and promotion of active patient participation as a means to improve adherence. LIMITATIONS For simplicity, this review focuses on rejection. P4 medicine, however, should more broadly address health concerns in kidney transplant recipients, including competing outcomes such as infections, malignancies, and cardiovascular disease. This review highlights how biomarkers to evaluate these competing outcomes warrant validation and standardization prior to their incorporation into clinical practice. IMPLICATIONS Consideration of all 4 domains of the P4 medicine framework when caring for and/or studying kidney transplant recipients has the potential of increasing therapeutic efficiency, minimizing adverse effects, decreasing health care costs, and maximizing wellness. Technologies to gauge immune competency, immunosuppression requirements, and early/reversible immune-mediated injuries are required to optimize kidney transplant care.
Collapse
Affiliation(s)
- Mirela Maier
- Division of Nephrology, Department of Medicine, McGill University Health Centre, Montreal, Quebec, Canada
- Metabolic Disorders and Complications, Research Institute of McGill University Health Centre, Montreal, Quebec, Canada
| | - Tomoko Takano
- Division of Nephrology, Department of Medicine, McGill University Health Centre, Montreal, Quebec, Canada
- Metabolic Disorders and Complications, Research Institute of McGill University Health Centre, Montreal, Quebec, Canada
| | - Ruth Sapir-Pichhadze
- Division of Nephrology, Department of Medicine, McGill University Health Centre, Montreal, Quebec, Canada
- Metabolic Disorders and Complications, Research Institute of McGill University Health Centre, Montreal, Quebec, Canada
- Multi-Organ Transplant Program, Royal Victoria Hospital, McGill University Health Centre, Montreal, Quebec, Canada
- Centre for Outcomes Research and Evaluation, McGill University Health Centre, Montreal, Quebec, Canada
| |
Collapse
|
12
|
Skulsky SL, O'Sullivan B, McArdle O, Leader M, Roche M, Conlon PJ, O'Neill JP. Review of high‐risk features of cutaneous squamous cell carcinoma and discrepancies between the American Joint Committee on Cancer and NCCN Clinical Practice Guidelines In Oncology. Head Neck 2016; 39:578-594. [DOI: 10.1002/hed.24580] [Citation(s) in RCA: 73] [Impact Index Per Article: 9.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2016] [Revised: 07/13/2016] [Accepted: 08/02/2016] [Indexed: 01/23/2023] Open
Affiliation(s)
| | - Barry O'Sullivan
- Department of Plastic and Reconstructive SurgeryBeaumont HospitalDublin Ireland
| | - Orla McArdle
- St. Luke's Radiation Oncology Network, Beaumont HospitalDublin Ireland
| | - Mary Leader
- Department of PathologyRoyal College of Surgeons in IrelandDublin Ireland
| | - Muireann Roche
- Department of DermatologyBeaumont Hospital and Royal College of Surgeons in IrelandDublin Ireland
| | - Peter J. Conlon
- Department of Nephrology and Renal TransplantationBeaumont Hospital and Royal College of Surgeons in IrelandDublin Ireland
| | - James Paul O'Neill
- Department of Neurosciences, Otolaryngology and Cochlear ImplantRoyal College of Surgeons in Ireland, Beaumont HospitalDublin Ireland
| |
Collapse
|
13
|
Burke MT, Isbel N, Barraclough KA, Jung JW, Wells JW, Staatz CE. Genetics and nonmelanoma skin cancer in kidney transplant recipients. Pharmacogenomics 2016; 16:161-72. [PMID: 25616102 DOI: 10.2217/pgs.14.156] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023] Open
Abstract
Kidney transplant recipients (KTRs) have a 65- to 250-fold greater risk than the general population of developing nonmelanoma skin cancer. Immunosuppressive drugs combined with traditional risk factors such as UV radiation exposure are the main modifiable risk factors for skin cancer development in transplant recipients. Genetic variation affecting immunosuppressive drug pharmacokinetics and pharmacodynamics has been associated with other transplant complications and may contribute to differences in skin cancer rates between KTRs. Genetic polymorphisms in genes encoding the prednisolone receptor, GST enzyme, MC1R, MTHFR enzyme and COX-2 enzyme have been shown to increase the risk of nonmelanoma skin cancer in KTRs. Genetic association studies may improve our understanding of how genetic variation affects skin cancer risk and potentially guide immunosuppressive treatment and skin cancer screening in at risk individuals.
Collapse
Affiliation(s)
- Michael T Burke
- Department of Nephrology, University of Queensland at the Princess Alexandra Hospital, Brisbane, Australia
| | | | | | | | | | | |
Collapse
|
14
|
Donnenfeld M, Deschasaux M, Latino-Martel P, Diallo A, Galan P, Hercberg S, Ezzedine K, Touvier M. Prospective association between dietary folate intake and skin cancer risk: results from the Supplémentation en Vitamines et Minéraux Antioxydants cohort. Am J Clin Nutr 2015; 102:471-8. [PMID: 26156743 DOI: 10.3945/ajcn.115.109041] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2015] [Accepted: 05/27/2015] [Indexed: 11/14/2022] Open
Abstract
BACKGROUND The role of folate in skin carcinogenesis is unclear, with experimental data suggesting potentially protective but also deleterious effects. OBJECTIVE Our main objective was to investigate the prospective association between dietary folate intake and risks of skin cancer (overall), nonmelanoma skin cancer (NMSC), and basal cell carcinoma (BCC). As an exploratory analysis, we also investigated the prospective association between erythrocyte folate concentration and skin cancer risk. DESIGN In this study, we included 5880 participants in the Supplémentation en Vitamines et Minéraux Antioxydants (SU.VI.MAX) cohort (follow-up: 1994-2007) who completed at least six 24-h dietary records during the first 2 y of the study. Associations between sex-specific tertiles of dietary and erythrocyte folate and skin cancer risk were assessed by using multivariate Cox proportional hazards models. RESULTS After a median follow-up of 12.6 y, 144 incident skin cancers were diagnosed. Dietary folate intake was associated with increased risk of overall skin cancer [HR for tertile 3 compared with tertile 1 (HR(T3vs.T1)): 1.79; 95% CI: 1.07, 2.99; P-trend = 0.03], NMSC (HR(T3vs.T1): 1.85; 95% CI: 1.06, 3.23; P-trend = 0.03), and BCC (HR(T3vs.T1): 1.78; 0.98, 3.24; P-trend = 0.05). This association was observed in women (corresponding P-trend = 0.007, 0.009, and 0.009, respectively) but not in men (P-trend = 0.8, 0.8, and 0.9, respectively). P-interaction values between tertiles of dietary folate intake and sex were 0.04, 0.02, and 0.02 for overall skin cancer, NMSC, and BCC, respectively. Erythrocyte folate concentration was directly associated with increased risk of overall skin cancer (HR(T3vs.T1): 2.54; 95% CI: 0.95, 6.81; P-trend = 0.03), NMSC (HR(T3vs.T1): 3.49; 95% CI: 1.11, 11.0; P-trend = 0.01), and BCC (HR(T3vs.T1): 7.44; 95% CI: 1.57, 35.3; P-trend = 0.004) (men and women combined). CONCLUSIONS This prospective study suggests an association between dietary folate intake and erythrocyte folate concentration and increased risk of overall skin cancer, NMSC, and BCC. Although several mechanistic hypotheses and 2 previous large prospective studies on BCC are in line with these results, epidemiologic literature is limited, and future research is needed to better elucidate the potential role of folate in the cause of skin cancers.
Collapse
Affiliation(s)
- Mathilde Donnenfeld
- Sorbonne Paris Cité Epidemiology and Biostatistics Research Center, French National Institute of Health and Medical Research U1153, French National Institute for Agricultural Research U1125, Cnam, Paris 13 University, Nutritional Epidemiology Research Team, Bobigny, France
| | - Mélanie Deschasaux
- Sorbonne Paris Cité Epidemiology and Biostatistics Research Center, French National Institute of Health and Medical Research U1153, French National Institute for Agricultural Research U1125, Cnam, Paris 13 University, Nutritional Epidemiology Research Team, Bobigny, France
| | - Paule Latino-Martel
- Sorbonne Paris Cité Epidemiology and Biostatistics Research Center, French National Institute of Health and Medical Research U1153, French National Institute for Agricultural Research U1125, Cnam, Paris 13 University, Nutritional Epidemiology Research Team, Bobigny, France
| | - Abou Diallo
- Sorbonne Paris Cité Epidemiology and Biostatistics Research Center, French National Institute of Health and Medical Research U1153, French National Institute for Agricultural Research U1125, Cnam, Paris 13 University, Nutritional Epidemiology Research Team, Bobigny, France
| | - Pilar Galan
- Sorbonne Paris Cité Epidemiology and Biostatistics Research Center, French National Institute of Health and Medical Research U1153, French National Institute for Agricultural Research U1125, Cnam, Paris 13 University, Nutritional Epidemiology Research Team, Bobigny, France
| | - Serge Hercberg
- Sorbonne Paris Cité Epidemiology and Biostatistics Research Center, French National Institute of Health and Medical Research U1153, French National Institute for Agricultural Research U1125, Cnam, Paris 13 University, Nutritional Epidemiology Research Team, Bobigny, France; Public Health Department, Avicenne Hospital, Bobigny, France; and
| | - Khaled Ezzedine
- Sorbonne Paris Cité Epidemiology and Biostatistics Research Center, French National Institute of Health and Medical Research U1153, French National Institute for Agricultural Research U1125, Cnam, Paris 13 University, Nutritional Epidemiology Research Team, Bobigny, France; Dermatology Department, Saint André Hospital, Bordeaux, France
| | - Mathilde Touvier
- Sorbonne Paris Cité Epidemiology and Biostatistics Research Center, French National Institute of Health and Medical Research U1153, French National Institute for Agricultural Research U1125, Cnam, Paris 13 University, Nutritional Epidemiology Research Team, Bobigny, France;
| |
Collapse
|
15
|
Clinical and Genetic Factors Associated with Cutaneous Squamous Cell Carcinoma in Kidney and Heart Transplant Recipients. Transplant Direct 2015; 1. [PMID: 26146661 DOI: 10.1097/txd.0000000000000521] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
BACKGROUND Cutaneous squamous cell carcinoma (cSCC) occurs with higher frequency and recurrence rates, increased morbidity and mortality, and more aggressive metastasis in kidney and heart transplant recipients compared to the general population but all transplant recipients do not develop cSCC. In addition, the phenotypic expression of cSCC among transplant recipients can vary between mild disease to extensive recurrent metastatic disease. These clinically observed differences in occurrence and severity of cSCC among transplant recipients suggest the possibility that an underlying genetic component might modify risk. METHODS We identified 88 white post-transplant cSCC cases (71 kidney and 17 heart) and 300 white post-transplant controls (265 kidney and 35 heart) using a DNA biobank linked with de-identified electronic medical records. Logistic regression was used to determine adjusted odds ratios (OR) for clinical characteristics and single nucleotide polymorphisms (SNP) associated with cSCC in both a candidate SNP and genome wide analysis. RESULTS Age (OR 1.08 [1.05-1.11], p<0.001) and azathioprine exposure (OR 8.64 [3.92-19.03], p<0.001) were significantly associated while gender, smoking tobacco use, dialysis duration and immunosuppression duration were not. Ten candidate SNPs previously associated with non-melanoma skin cancer in the general population were significantly associated with cSCC in transplant recipients. Genome wide association analysis implicated SNPs in genes previously associated with malignancy, CSMD1 (OR 3.14 [1.90-5.20]) and CACNA1D (OR 2.67 [1.73-4.10]). CONCLUSIONS This study shows an association of increasing age and azathioprine exposure with cSCC and confirms a genetic contribution for cSCC development in kidney and heart transplant recipients.
Collapse
|
16
|
Traynor C, Conlon P, Phelan PJ, O'Kelly P, Elens L, McCormack M, Cavalleri G, Comber H, van Schaik RHN, Conlon PJ. Association of CYP3A variants with kidney transplant outcomes. Ren Fail 2015; 37:562-6. [PMID: 25644970 DOI: 10.3109/0886022x.2015.1007013] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Abstract
Cyclosporine is used extensively in kidney transplantation and is a substrate for cytochrome P450 enzymes. The role of cytochrome p450 polymorphisms in kidney transplant outcome has not yet been fully elucidated. We investigate the clinical impact of single nucleotide polymorphisms in CYP3A4, CYP3A5, PPARα, and POR*28 in 255 kidney transplant recipients. We examine for any association with graft survival, time to first cancer, and delayed graft function, and also measure cyclosporine levels at days 3, 10, and months 1, 3, 6, and 12 after transplantation. The CYP3A4*22 allele is significant associated with the development of cancer post-kidney transplantation (HR 0.20, 95% CI 0.07-0.57, p = 0.003). It is not significantly associated with graft survival. No other SNP's were associated with graft survival time to first cancer, or delayed graft function. There was a non-significant trend of lower cyclosporine dose requirement in CYP3A4*22 carriers. Independent replication of our findings is now warranted to confirm or reject the role of CYP3A variants in cancer development following kidney transplantation.
Collapse
Affiliation(s)
- Carol Traynor
- Department of Nephrology, Beaumont Hospital , Dublin , Ireland
| | | | | | | | | | | | | | | | | | | |
Collapse
|
17
|
Deng F, Gao Y, L V JH, Gao JM. Methylenetetrahydrofolate reductase gene polymorphisms and skin cancer risk: a meta-analysis. Cancer Genet 2014; 207:299-305. [PMID: 25306137 DOI: 10.1016/j.cancergen.2014.08.001] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2013] [Revised: 08/06/2014] [Accepted: 08/15/2014] [Indexed: 10/24/2022]
Abstract
We sought to determine whether the methylenetetrahydrofolate reductase (MTHFR) A1298C and C677T polymorphisms are associated with increased skin cancer risk. We performed literature searches of the PubMed, BIOSIS Previews, and Web of Science databases to identify eligible articles published through September 15, 2013. Pooled odds ratios (ORs) with 95% confidence intervals (CIs) were calculated using fixed-effects or random-effects models. Publication bias and subgroup analyses were also performed. Eight articles, which consisted of 10,066 subjects (2,672 patients and 7,394 controls), were included in the meta-analysis. Homozygous MTHFR 1298C individuals were 1.29 times more likely to develop skin cancer (95% CI, 1.04-1.61) compared with A1298C allele (AA or AC) carriers. There was an increased risk for C allele homozygotes compared with the 1,298 AA+AC carriers (OR, 1.45; 95% CI, 1.08-1.96) when restricted to basal cell carcinomas (BCC). The 1298C homozygote carriers increased the odds of BCC by 1.47 times (95% CI, 1.07-2.01) compared with those who were 1298A homozygote carriers. ORs for all genetic models yielded a null association. The data obtained from this meta-analysis suggest that the MTHFR 1298C allele is associated with increased skin cancer risk, particularly BCC; however, no association was observed between the MTHFR C677T polymorphism and skin cancer.
Collapse
Affiliation(s)
- Feng Deng
- Institution of Medical Management and Policy Research, College of Public Policy and Management, Xi'an Jiao Tong University, Xi'an, China
| | - Ying Gao
- Department of Radiotherapy Oncology, The First Affiliated Hospital of Medical College of Xi'an Jiao Tong University, Xi'an, China
| | - Ju-hong L V
- Department of Pediatrics Baoji Central Hospital of Shaanxi Province, Baoji, China
| | - Jian-min Gao
- Institution of Medical Management and Policy Research, College of Public Policy and Management, Xi'an Jiao Tong University, Xi'an, China.
| |
Collapse
|
18
|
|
19
|
Palyca P, Koshenkov VP, Mehnert JM. Developments in the treatment of locally advanced and metastatic squamous cell carcinoma of the skin: a rising unmet need. Am Soc Clin Oncol Educ Book 2014:e397-e404. [PMID: 24857130 PMCID: PMC5216418 DOI: 10.14694/edbook_am.2014.34.e397] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Squamous cell carcinoma of the skin (SCCS) is a common malignancy with potentially devastating consequences in patients with locally advanced or metastatic disease. Its rising incidence, primarily a result of an aging population and increased ultraviolet (UV) radiation exposure, characterize an emerging unmet need. A firm understanding of the biology of this disease, likely distinct from that of other squamous malignancies because of the influence of UV radiation, is necessary in the evaluation of treatment paradigms. Careful recognition of high-risk features pertaining to tumor and host characteristics is paramount to proper management. However, a lack of standardization in guidelines in this regard creates a challenge for physicians. Questions persist regarding additional evaluation and treatment for advanced disease such as the roles for sentinel lymph node biopsy and the adjuvant use of radiation and chemotherapy. With respect to advanced disease, multiple combinations of chemotherapy have been tested with variable success, but no rigorous randomized studies have been conducted. In addition, EGFR inhibitors such as cetuximab and erlotinib have displayed antitumor activity and as such, warrant further investigation. In sum, the treatment of locally advanced and metastatic SCCS is a ripe area for clinical investigation. This article summarizes the current understanding of disease biology and emerging questions in the management of this disease.
Collapse
Affiliation(s)
- Paul Palyca
- From the Rutgers Cancer Institute of New Jersey/Rutgers Robert Wood Johnson Medical School, New Brunswick, NJ
| | - Vadim P Koshenkov
- From the Rutgers Cancer Institute of New Jersey/Rutgers Robert Wood Johnson Medical School, New Brunswick, NJ
| | - Janice M Mehnert
- From the Rutgers Cancer Institute of New Jersey/Rutgers Robert Wood Johnson Medical School, New Brunswick, NJ
| |
Collapse
|
20
|
Harwood CA, Mesher D, McGregor JM, Mitchell L, Leedham-Green M, Raftery M, Cerio R, Leigh IM, Sasieni P, Proby CM. A surveillance model for skin cancer in organ transplant recipients: a 22-year prospective study in an ethnically diverse population. Am J Transplant 2013; 13:119-29. [PMID: 23072567 DOI: 10.1111/j.1600-6143.2012.04292.x] [Citation(s) in RCA: 92] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2012] [Revised: 07/29/2012] [Accepted: 08/15/2012] [Indexed: 01/25/2023]
Abstract
Skin cancer is a frequent complication of organ transplantation. Current guidelines advise specialist skin surveillance but there are limited data on how these should be implemented. This study determines overall burden of cancer and relevant intervals for strategic surveillance in an ethnically diverse transplant population. Prospective data on time to first and subsequent cancers and cumulative burden with respect to defined risk factors were analyzed in a cohort of 1010 patients in a UK center over 22 years. Among 931 individuals transplanted >6 months (mean 10.3 years), 1820 skin cancers occurred in 267 (29%) individuals and were multiple in 66%. Cumulative incidence at 5, 10, 20 and 30 years was 11%, 25%, 54% and 74%, with median time to second, third and fourth cancers of 24, 14.7 and 8.4 months, respectively. Tumors were overwhelmingly squamous and basal cell carcinomas (73% and 24%, respectively). Skin phototype, ultraviolet radiation exposure, age at transplant and duration of transplant were significant risk predictors and were used to construct clinically relevant surveillance intervals. This study provides a comprehensive, prospective analysis of skin cancer morbidity and risk in an ethnically diverse transplant population from which we derive an evidence-based skin cancer surveillance program.
Collapse
Affiliation(s)
- C A Harwood
- Centre for Cutaneous Research, Blizard Institute, Barts and the London School of Medicine and Dentistry, Queen Mary University of London, UK.
| | | | | | | | | | | | | | | | | | | |
Collapse
|
21
|
Tessari G, Girolomoni G. Nonmelanoma skin cancer in solid organ transplant recipients: update on epidemiology, risk factors, and management. Dermatol Surg 2012; 38:1622-30. [PMID: 22805312 DOI: 10.1111/j.1524-4725.2012.02520.x] [Citation(s) in RCA: 66] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
BACKGROUND Nonmelanoma skin cancers (NMSC) are the most frequently observed cancers in solid organ transplant recipients (SOTR) and may have a significant disease burden. OBJECTIVE To provide an update regarding the epidemiology and management of NMSC in SOTR. RESULTS Ten-year incidence rates range from 10% in Italy to 20% in Northern Europe to 70% in Australia. More than 50% of NMSC are located on sun-exposed areas (head, dorsum of hands). Many risk factors have been identified, including age at transplantation, fair skin, type of immunosuppressive drugs, cumulative sun exposure, viral infections, and various genetic markers. Patients with a first NMSC have a 49 times higher risk of developing a subsequent NMSC. Skin self-examination and photoprotection should be encouraged in all transplanted patients. Long-term skin surveillance, early diagnosis and aggressive treatment of any suspicious lesion, reduction of immunosuppressive therapy, and conversion to m-TOR inhibitors can be also effective measures for reduction of NMSC incidence. CONCLUSIONS NMSC is the most frequent cancer observed in SOTR. Early diagnosis, patient education, and modification of immunosuppression are effective measures for reduction of NMSC incidence.
Collapse
Affiliation(s)
- Gianpaolo Tessari
- Section of Dermatology, Department of Medicine, University of Verona, Verona, Italy.
| | | |
Collapse
|
22
|
Arron ST, Jennings L, Nindl I, Rosl F, Bouwes Bavinck JN, Seçkin D, Trakatelli M, Murphy GM. Viral oncogenesis and its role in nonmelanoma skin cancer. Br J Dermatol 2011; 164:1201-13. [PMID: 21418174 DOI: 10.1111/j.1365-2133.2011.10322.x] [Citation(s) in RCA: 56] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
In recent years, the contribution of viruses to cutaneous oncogenesis has steadily gained recognition. The archetype is human herpesvirus 8, which is well established as the causative agent in Kaposi sarcoma. Other viruses believed to play a role in nonmelanoma skin cancer include human papillomavirus and the recently described Merkel cell polyomavirus. We review the mechanisms by which these three viruses interact with the host cell, ultraviolet radiation and immunosuppression to result in carcinogenesis.
Collapse
Affiliation(s)
- S Tuttleton Arron
- Department of Dermatology, University of California, San Francisco, CA, USA
| | | | | | | | | | | | | | | | | |
Collapse
|
23
|
Abstract
The incidence of nonmelanoma skin cancer is increasing every year. Basal cell carcinoma and squamous cell carcinoma are the two major types of nonmelanoma skin cancer. Among other factors, understanding the potential role of nutrients in the development, progression, and treatment of nonmelanoma skin cancer is critical. This contribution provides a review of the nutrients that have been more extensively investigated in the literature with regard to nonmelanoma skin cancer, including dietary fats, retinol, carotenoids, vitamin C, vitamin D, vitamin E, selenium, copper, iron, zinc, green tea, and black tea.
Collapse
Affiliation(s)
- Michael J Payette
- Department of Dermatology, MC-6230, University of Connecticut Health Center, 263 Farmington Avenue, Farmington, CT 06030, USA
| | | | | |
Collapse
|
24
|
Staatz CE, Goodman LK, Tett SE. Effect of CYP3A and ABCB1 single nucleotide polymorphisms on the pharmacokinetics and pharmacodynamics of calcineurin inhibitors: Part II. Clin Pharmacokinet 2010; 49:207-21. [PMID: 20214406 DOI: 10.2165/11317550-000000000-00000] [Citation(s) in RCA: 156] [Impact Index Per Article: 11.1] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
The calcineurin inhibitors ciclosporin (cyclosporine) and tacrolimus are immunosuppressant drugs used for the prevention of organ rejection following transplantation. Both agents are metabolic substrates for cytochrome P450 (CYP) 3A enzymes - in particular, CYP3A4 and CYP3A5 - and are transported out of cells via P-glycoprotein (ABCB1). Several single nucleotide polymorphisms (SNPs) have been identified in the genes encoding for CYP3A4, CYP3A5 and P-glycoprotein, including CYP3A4 -392A>G (rs2740574), CYP3A5 6986A>G (rs776746), ABCB1 3435C>T (rs1045642), ABCB1 1236C>T (rs1128503) and ABCB1 2677G>T/A (rs2032582). The aim of this review is to provide the clinician with an extensive overview of the recent literature on the known effects of these SNPs on the pharmacodynamics of ciclosporin and tacrolimus in solid-organ transplant recipients. Literature searches were performed and all relevant primary research articles were critiqued and summarized. There is no evidence that the CYP3A4 -392A>G SNP has an effect on the pharmacodynamics of either ciclosporin or tacrolimus; however, studies have been limited. For patients prescribed ciclosporin, the CYP3A5 6986A>G SNP may influence long-term survival, possibly because of a different metabolite pattern over time. This SNP has no clear association with acute rejection during ciclosporin therapy. Despite a strong association between the CYP3A5 6986A>G SNP and tacrolimus pharmacokinetics, there is no consistent evidence of organ rejection as a result of genotype-related under-immunosuppression. This is likely to be explained by the practice of performing tacrolimus dose adjustments in the early phase after transplantation. The effect of the CYP3A5 6986A>G SNP on ciclosporin- and tacrolimus-related nephrotoxicity and development of hypertension is unclear. Similarly, the ABCB1 SNPs exert no clear influence on either ciclosporin or tacrolimus pharmacodynamics, with studies showing conflicting results in regard to the main parameters of acute rejection and nephrotoxicity. In kidney transplant patients, consideration of the donor kidney genotype rather than the recipient genotype may be more important when assessing development of nephrotoxicity. Studies with low patient numbers may account for many inconsistent results to date. The majority of studies have only evaluated the effects of individual SNPs; however, multiple polymorphisms may interact to produce a combined effect. Further haplotype analyses are likely to be useful, particularly ones that consider both donor and recipient genotype. The effects of polymorphisms associated with the pregnane X receptor, organic anion transporting polypeptides, calcineurin inhibitor target sites and immune response pathways need to be further investigated. A large standardized clinical trial is now required to evaluate the relationship between the pharmacokinetics and pharmacodynamics of CYP3A5-mediated tacrolimus metabolism, particularly in regard to the outcomes of acute rejection and nephrotoxicity. It is not yet clear whether pharmacogenetic profiling of calcineurin inhibitors will be a useful clinical tool for personalizing immunosuppressant therapy.
Collapse
|
25
|
Laing M, Cummins R, O’Grady A, O’Kelly P, Kay E, Murphy G. Aberrant DNA methylation associated with MTHFR
C677T genetic polymorphism in cutaneous squamous cell carcinoma in renal transplant patients. Br J Dermatol 2010; 163:345-52. [DOI: 10.1111/j.1365-2133.2010.09774.x] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
|
26
|
Abstract
Ultraviolet (UV) radiation is a complete carcinogen. The effects of UV radiation are mediated via direct damage to cellular DNA in the skin and suppression of image surveillance mechanisms. In the context of organ transplantation, addiction of drugs which suppress the immune system add greatly to the carcinogenicity of UV radiation. This review considers the mechanisms of such effects.
Collapse
Affiliation(s)
- G M Murphy
- Department of Dermatology, Beaumont & Mater Misericordiae Hospital, Dublin, Ireland.
| |
Collapse
|
27
|
Abstract
PURPOSE OF REVIEW In the present study, we reviewed recent publications regarding potential genetic predictors of transplant outcome, including acute rejection, metabolism of immunosuppressive medications, long-term transplant outcome, and posttransplant complications. RECENT FINDINGS Recent studies are based on the candidate gene analysis; specifically, cytokine genes and innate immune response molecules present popular targets for studies of acute rejection and long-term outcome. Pharmacogenomic studies are mostly focused on the genes of drug targets or the corresponding enzymes metabolizing the drug. Posttransplant complications (i.e. infections, diabetes, and malignancies) are associated with a variety of genes of different pathways. Most of the studies are based on just recipient, but not donor, genotype analysis. Positive results are balanced by reports of no association when evaluating the same genetic polymorphisms. Some of the reports might be affected by insufficient study design, including small sample size, lack of adjustment for potential confounders, and multiple comparisons. SUMMARY The field remains controversial because of differences in populations, study design, and statistical methods. Studies are based on candidate gene analysis; however, genome-wide association studies are lacking. Future research should be directed at better designed studies, larger sample size, evaluating both recipients and donors, and implementation of genome-wide association studies.
Collapse
|
28
|
Tredger JM, Brown NW, Dhawan A. Calcineurin inhibitor sparing in paediatric solid organ transplantation : managing the efficacy/toxicity conundrum. Drugs 2008; 68:1385-414. [PMID: 18578558 DOI: 10.2165/00003495-200868100-00004] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Despite their efficacy, the calcineurin inhibitors (CNIs) ciclosporin and tacrolimus carry a risk of debilitating adverse effects, especially nephrotoxicity, that affect the long-term outcome and survival of children who are given organ transplants. Simple reduction in dosage of CNI has little or no long-term benefit on their adverse effects, and complete withdrawal without threatening graft outcome may only be possible after liver transplantation. Until the last decade, the only option was to increase corticosteroid and/or azathioprine doses, which imposed additional long-term hazards. Considered here are the emerging generation of new agents offering an opportunity for improving long-term graft survival, minimizing CNI-related adverse events and ensuring patient well-being.A holistic, multifaceted strategy may need to be considered - initial selection and optimized use and monitoring of immunosuppressant regimens, early recognition of indicators of patient and graft dysfunction, and, where applicable, early introduction of CNI-sparing regimens facilitating CNI withdrawal. The evidence reviewed here supports these approaches but remains far from definitive in paediatric solid organ transplantation. Because de novo immunosuppression uses CNI in more than 93% of patients, reduction of CNI-related adverse effects has focused on CNI sparing or withdrawal.A recurring theme where sirolimus and mycophenolate mofetil have been used for this purpose is the importance of their early introduction to limit CNI damage and provide long-term benefit: for example, long-term renal function critically reflects that at 1 year post-transplant. While mycophenolic acid shows advantages over sirolimus in preserving renal function because the latter is associated with proteinuria, sirolimus appears the more potent immunosuppressant but also impairs early wound healing. The use of CNI-free immunosuppressant regimens with depleting or non-depleting antibodies plus sirolimus and mycophenolic acid needs much wider investigation to achieve acceptable rejection rates and conserve renal function. The adverse effects of the alternative immunosuppressants, particularly the dyslipidaemia associated with sirolimus, needs to be minimized to avoid replacing one set of adverse effects (from CNIs) with another. While we can only conjecture that judicious combinations with the second generation of novel immunosuppressants currently in development will provide these solutions, a rationale of low-dose therapy with multiple immunosuppressants acting by complementary mechanisms seems to hold the promise for efficacy with minimal toxicity until the vision of tolerance achieves reality.
Collapse
Affiliation(s)
- J Michael Tredger
- Institute of Liver Studies, King's College Hospital and King's College London School of Medicine, London, UK.
| | | | | |
Collapse
|
29
|
|
30
|
Pretransplant Serum Vitamin D Levels and Risk of Cancer After Renal Transplantation. Transplantation 2008; 85:1755-9. [DOI: 10.1097/tp.0b013e318172cb2c] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
|
31
|
Ho W, Murphy G. Update on the pathogenesis of post-transplant skin cancer in renal transplant recipients. Br J Dermatol 2007; 158:217-24. [DOI: 10.1111/j.1365-2133.2007.08363.x] [Citation(s) in RCA: 59] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
|