1
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Raza Z, Islam BN, Hachem CY, Cummings LC. Evolving data on risk and current screening recommendations for colorectal cancer in cystic fibrosis: Pre- and posttransplant. Pediatr Pulmonol 2024; 59 Suppl 1:S91-S97. [PMID: 39105336 DOI: 10.1002/ppul.27060] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/12/2023] [Revised: 04/29/2024] [Accepted: 05/03/2024] [Indexed: 08/07/2024]
Abstract
Advances in treatment for cystic fibrosis (CF), including cystic fibrosis transmembrane conductor regulator (CFTR) modulators, have ushered in an era where patients with CF have much longer life expectancies. This shift in life expectancy demands increased attention to diseases of aging in patients with CF. A notable complication of CF is early-onset colorectal cancer (CRC), which is especially prevalent in patients with severe mutations and after transplant. CFTR acts as a tumor suppressor gene based on knockout models. Lack of CFTR expression promotes carcinogenic processes such as intestinal inflammation and deleterious gut microbiome changes. The consensus Cystic Fibrosis Foundation recommendations advocate treating this population as a high-risk group, using a colonoscopy-only screening strategy starting at age 40 in patients without transplant and at age 30 after transplant. Screening should be considered every 5 years if negative and every 3 years or sooner for patients with adenomatous polyps. Future research will determine the role of noninvasive CRC screening tools in this population, as well as the effects of CFTR modulators on the risk of developing CRC.
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Affiliation(s)
- Zain Raza
- Department of Internal Medicine, Division of Gastroenterology & Hepatology, Saint Louis University School of Medicine, Saint Louis, Missouri, USA
| | - Bianca N Islam
- Department of Medicine, Division of Gastroenterology and Liver Disease, University Hospitals Cleveland Medical Center, Cleveland, Ohio, USA
- Department of Medicine, Case Western Reserve University, School of Medicine, Cleveland, Ohio, USA
| | - Christine Y Hachem
- Department of Internal Medicine, Division of Gastroenterology & Hepatology, Saint Louis University School of Medicine, Saint Louis, Missouri, USA
| | - Linda C Cummings
- Department of Medicine, Division of Gastroenterology and Liver Disease, University Hospitals Cleveland Medical Center, Cleveland, Ohio, USA
- Department of Medicine, Case Western Reserve University, School of Medicine, Cleveland, Ohio, USA
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2
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Peled Y, Ducharme A, Kittleson M, Bansal N, Stehlik J, Amdani S, Saeed D, Cheng R, Clarke B, Dobbels F, Farr M, Lindenfeld J, Nikolaidis L, Patel J, Acharya D, Albert D, Aslam S, Bertolotti A, Chan M, Chih S, Colvin M, Crespo-Leiro M, D'Alessandro D, Daly K, Diez-Lopez C, Dipchand A, Ensminger S, Everitt M, Fardman A, Farrero M, Feldman D, Gjelaj C, Goodwin M, Harrison K, Hsich E, Joyce E, Kato T, Kim D, Luong ML, Lyster H, Masetti M, Matos LN, Nilsson J, Noly PE, Rao V, Rolid K, Schlendorf K, Schweiger M, Spinner J, Townsend M, Tremblay-Gravel M, Urschel S, Vachiery JL, Velleca A, Waldman G, Walsh J. International Society for Heart and Lung Transplantation Guidelines for the Evaluation and Care of Cardiac Transplant Candidates-2024. J Heart Lung Transplant 2024:S1053-2498(24)01679-6. [PMID: 39115488 DOI: 10.1016/j.healun.2024.05.010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2024] [Accepted: 05/14/2024] [Indexed: 08/18/2024] Open
Abstract
The "International Society for Heart and Lung Transplantation Guidelines for the Evaluation and Care of Cardiac Transplant Candidates-2024" updates and replaces the "Listing Criteria for Heart Transplantation: International Society for Heart and Lung Transplantation Guidelines for the Care of Cardiac Transplant Candidates-2006" and the "2016 International Society for Heart Lung Transplantation Listing Criteria for Heart Transplantation: A 10-year Update." The document aims to provide tools to help integrate the numerous variables involved in evaluating patients for transplantation, emphasizing updating the collaborative treatment while waiting for a transplant. There have been significant practice-changing developments in the care of heart transplant recipients since the publication of the International Society for Heart and Lung Transplantation (ISHLT) guidelines in 2006 and the 10-year update in 2016. The changes pertain to 3 aspects of heart transplantation: (1) patient selection criteria, (2) care of selected patient populations, and (3) durable mechanical support. To address these issues, 3 task forces were assembled. Each task force was cochaired by a pediatric heart transplant physician with the specific mandate to highlight issues unique to the pediatric heart transplant population and ensure their adequate representation. This guideline was harmonized with other ISHLT guidelines published through November 2023. The 2024 ISHLT guidelines for the evaluation and care of cardiac transplant candidates provide recommendations based on contemporary scientific evidence and patient management flow diagrams. The American College of Cardiology and American Heart Association modular knowledge chunk format has been implemented, allowing guideline information to be grouped into discrete packages (or modules) of information on a disease-specific topic or management issue. Aiming to improve the quality of care for heart transplant candidates, the recommendations present an evidence-based approach.
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Affiliation(s)
- Yael Peled
- Leviev Heart & Vascular Center, Sheba Medical Center, Tel Hashomer, Ramat Gan, Israel; Faculty of Medical & Health Sciences, Tel Aviv University, Tel Aviv, Israel.
| | - Anique Ducharme
- Deparment of Medicine, Montreal Heart Institute, Université de Montréal, Montreal, Quebec, Canada.
| | - Michelle Kittleson
- Smidt Heart Institute, Cedars-Sinai Medical Center, Los Angeles, California, USA
| | - Neha Bansal
- Icahn School of Medicine at Mount Sinai, New York, New York, USA
| | - Josef Stehlik
- Division of Cardiovascular Medicine, Department of Internal Medicine, University of Utah School of Medicine, Salt Lake City, Utah, USA
| | - Shahnawaz Amdani
- Department of Pediatric Cardiology, Cleveland Clinic Children's, Cleveland, Ohio, USA
| | - Diyar Saeed
- Heart Center Niederrhein, Helios Hospital Krefeld, Krefeld, Germany
| | - Richard Cheng
- Division of Cardiology, University of Washington, Seattle, WA, USA
| | - Brian Clarke
- Division of Cardiology, University of British Columbia, St Paul's Hospital, Vancouver, British Columbia, Canada
| | - Fabienne Dobbels
- Academic Centre for Nursing and Midwifery, Department of Public Health and Primary Care, KU Leuven, Leuven, Belgium
| | - Maryjane Farr
- Division of Cardiology, Department of Internal Medicine, UT Southwestern Medical Center, Dallas, TX; Parkland Health System, Dallas, TX, USA
| | - JoAnn Lindenfeld
- Division of Cardiovascular Medicine, Vanderbilt University, Nashville, TN, USA
| | | | - Jignesh Patel
- Smidt Heart Institute, Cedars-Sinai Medical Center, Los Angeles, California, USA
| | - Deepak Acharya
- Division of Cardiovascular Diseases, University of Arizona Sarver Heart Center, Tucson, Arizona, USA
| | - Dimpna Albert
- Department of Paediatric Cardiology, Paediatric Heart Failure and Cardiac Transplant, Heart Center, King Faisal Specialist Hospital and Research Center, Riyadh, Saudi Arabia
| | - Saima Aslam
- Division of Infectious Diseases and Global Public Health, Department of Medicine, University of California San Diego, La Jolla, California, USA
| | - Alejandro Bertolotti
- Heart and Lung Transplant Service, Favaloro Foundation University Hospital, Buenos Aires, Argentina
| | - Michael Chan
- University of Alberta Hospital, Edmonton, Alberta, Canada
| | - Sharon Chih
- Heart Failure and Transplantation, Division of Cardiology, University of Ottawa Heart Institute, Ottawa, Ontario, Canada
| | - Monica Colvin
- Department of Cardiology, University of Michigan, Ann Arbor, MI; Scientific Registry of Transplant Recipients, Hennepin Healthcare Research Institute, Minneapolis, MN, USA
| | - Maria Crespo-Leiro
- Cardiology Department Complexo Hospitalario Universitario A Coruna (CHUAC), CIBERCV, INIBIC, UDC, La Coruna, Spain
| | - David D'Alessandro
- Massachusetts General Hospital, Boston; Harvard School of Medicine, Boston, MA, USA
| | - Kevin Daly
- Boston Children's Hospital & Harvard Medical School, Boston, MA, USA
| | - Carles Diez-Lopez
- Advanced Heart Failure and Heart Transplant Unit, Department of Cardiology, Hospital Universitari de Bellvitge, L'Hospitalet de Llobregat, Barcelona, Spain
| | - Anne Dipchand
- Division of Cardiology, Department of Paediatrics, Hospital for Sick Children, University of Toronto, Toronto, Ontario, Canada
| | | | - Melanie Everitt
- Department of Pediatrics, University of Colorado School of Medicine, Aurora, CO, USA
| | - Alexander Fardman
- Leviev Heart & Vascular Center, Sheba Medical Center, Tel Hashomer, Ramat Gan, Israel; Faculty of Medical & Health Sciences, Tel Aviv University, Tel Aviv, Israel
| | - Marta Farrero
- Department of Cardiology, Hospital Clínic, Barcelona, Spain
| | - David Feldman
- Newark Beth Israel Hospital & Rutgers University, Newark, NJ, USA
| | - Christiana Gjelaj
- Department of Cardiovascular and Thoracic Surgery, Montefiore Medical Center, Albert Einstein College of Medicine, Bronx, NY, USA
| | - Matthew Goodwin
- Division of Cardiothoracic Surgery, University of Utah, Salt Lake City, UT, USA
| | - Kimberly Harrison
- Department of Pharmaceutical Services, Vanderbilt University Medical Center, Nashville, TN, USA
| | - Eileen Hsich
- Cleveland Clinic Foundation, Division of Cardiovascular Medicine, Cleveland, OH, USA
| | - Emer Joyce
- Department of Cardiology, Mater University Hospital, Dublin, Ireland; School of Medicine, University College Dublin, Dublin, Ireland
| | - Tomoko Kato
- Department of Cardiology, International University of Health and Welfare School of Medicine, Narita, Chiba, Japan
| | - Daniel Kim
- University of Alberta & Mazankowski Alberta Heart Institute, Edmonton, Alberta, Canada
| | - Me-Linh Luong
- Division of Infectious Disease, Department of Medicine, University of Montreal Hospital Center, Montreal, Quebec, Canada
| | - Haifa Lyster
- Department of Heart and Lung Transplantation, The Royal Brompton and Harefield NHS Foundation Trust, Harefield Hospital, Harefield, Middlesex, UK
| | - Marco Masetti
- Heart Failure and Transplant Unit, IRCCS Azienda Ospedaliero-Universitaria di Bologna, Bologna, Italy
| | | | - Johan Nilsson
- Department of Cardiothoracic and Vascular Surgery, Skane University Hospital, Lund, Sweden
| | | | - Vivek Rao
- Division of Cardiac Surgery, University of Toronto, Toronto, Ontario, Canada
| | - Katrine Rolid
- Department of Cardiology, Oslo University Hospital, Rikshospitalet, Oslo, Norway
| | - Kelly Schlendorf
- Division of Cardiology, Vanderbilt University Medical Center, Nashville, TN, USA
| | | | - Joseph Spinner
- Section of Pediatric Cardiology, Texas Children's Hospital, Baylor College of Medicine, Houston, TX, USA
| | - Madeleine Townsend
- Division of Pediatric Cardiology, Stollery Children's Hospital, Edmonton, Alberta, Canada
| | - Maxime Tremblay-Gravel
- Deparment of Medicine, Montreal Heart Institute, Université?de Montréal, Montreal, Quebec, Canada
| | - Simon Urschel
- Stollery Children's Hospital, University of Alberta, Edmonton, Alberta, Canada
| | - Jean-Luc Vachiery
- Department of Cardiology, Cliniques Universitaires de Bruxelles, Hôpital Académique Erasme, Bruxelles, Belgium
| | - Angela Velleca
- Smidt Heart Institute, Cedars-Sinai Medical Center, Los Angeles, California, USA
| | - Georgina Waldman
- Department of Pharmacy, Massachusetts General Hospital, Boston, MA, USA
| | - James Walsh
- Allied Health Research Collaborative, The Prince Charles Hospital, Brisbane; Heart Lung Institute, The Prince Charles Hospital, Brisbane, Australia
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Raichurkar P, Kim TJ, Byrne C. An Unusual and Protracted Course of a Haggitt 3 Malignant Polyp Recurrence. Cureus 2024; 16:e54731. [PMID: 38524003 PMCID: PMC10960937 DOI: 10.7759/cureus.54731] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/22/2024] [Indexed: 03/26/2024] Open
Abstract
Timely detection of colorectal cancer recurrence is paramount, as treatment of early-stage recurrence greatly improves survival and outcomes. Current guidelines outline post-resection surveillance through endoscopy, CT imaging, and tumor markers for five years; however, there is minimal data to guide follow-up beyond this. We present the case of a 60-year-old female with locoregional recurrence 15 years after endoscopic mucosal resection of a low-grade Haggit level 3 sigmoid colon polyp. Unusually the recurrence was noted as an incidental finding following investigation of an elevated alpha-fetoprotein level post liver transplant, and a retrospective review of imaging revealed a calcified sigmoid mesentery mass. While surgical pathology revealed locoregional recurrence, there was no evidence of this on surveillance and preoperative colonoscopy. Through this case, we discuss the risk factors for late recurrence of colorectal cancer whilst exploring the literature and guidelines around this subset of patients. As new guidelines are developed, it may be important to consider late recurrence and individualize follow-up regimes based on risk factors.
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Affiliation(s)
| | - Tae Jun Kim
- Colorectal Surgery, Royal Prince Alfred Hospital, Sydney, AUS
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Mehtani R, Saigal S. Long Term Complications of Immunosuppression Post Liver Transplant. J Clin Exp Hepatol 2023; 13:1103-1115. [PMID: 37975039 PMCID: PMC10643541 DOI: 10.1016/j.jceh.2023.06.007] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/04/2023] [Accepted: 06/18/2023] [Indexed: 11/19/2023] Open
Abstract
Improvement in immunosuppression has led to a remarkable improvement in short-term and long-term outcomes post-liver transplant (LT). However, with improvements in long-term survival, complications related to immunosuppressive drugs, either directly or indirectly, have also increased. The adverse events could be drug-specific, class-specific, or generic. Calcineurin inhibitors (cyclosporine and tacrolimus) are the backbone of the immunosuppression after LT and the main culprit associated with most of the complications, including renal failure, post-transplant diabetes mellitus (PTDM), and metabolic syndrome. Steroids are also implicated in the development of diabetes, osteoporosis, and metabolic syndrome post-LT. The development of infections and de novo malignancies (DNMs) is a generic effect linked to the overall cumulative immunosuppression. The development of these complications significantly hampers the quality of life and leads to increased morbidity and mortality post-LT. Thus, it is important to minimize the cumulative immunosuppression dose while simultaneously preventing allograft rejection. This review provides up-to-date, comprehensive knowledge of the complications of long-term immunosuppression post-LT along with associated risk factors and strategies to minimize the risk of complications.
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Affiliation(s)
- Rohit Mehtani
- Department of Hepatology, Amrita Institute of Medical Sciences and Research, Faridabad, Haryana - 121001, India
| | - Sanjiv Saigal
- Transplant Hepatology, Centre for Liver and Biliary Sciences, Max Superspecialty Hospital, Saket, New Delhi, India
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Abstract
Cancer is a major public health concern, and screening for cancer is a on-going issue in our practice. The risk of cancer in patients with chronic inflammatory rheumatic diseases varies according to their personal medical history, underlying rheumatic disease and its treatment. However, to date, no rheumatology learned society has established specific recommendations for cancer screening in patients with chronic inflammatory rheumatic diseases. In this review, we provide an overview of the risk of cancer in chronic inflammatory rheumatic diseases (related to the disease itself or its treatment), cancer screening in the general population and in immunocompromised subjects, and cancer screening in patients with chronic inflammatory rheumatic diseases.
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Affiliation(s)
- Joanna Kedra
- Sorbonne université, institut Pierre-Louis d'épidémiologie et de santé publique, 56, boulevard Vincent-Auriol, 75646 Paris, France
| | - Raphaèle Seror
- Inserm UMR1184: immunologie des maladies virales auto-immunes, hématologiques et bactériennes, service de rhumatologie, FHU CARE, université Paris-Saclay, hôpital Bicêtre, AP-HP, 78, rue du Général Leclerc, 94270 Le Kremlin-Bicêtre, France.
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6
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Sagastagoitia-Fornie M, Morán-Fernández L, Blázquez-Bermejo Z, Díaz-Molina B, Gómez-Bueno M, Almenar-Bonet L, López-Granados A, González-Vílchez F, Mirabet-Pérez S, García-Romero E, Jose M. SM, Rábago Juan-Aracil G, Castel-Lavilla MA, Blasco-Peiro T, Garrido-Bravo I, De La Fuente-Galán L, Muñiz J, Crespo-Leiro MG. Incidence and Prognosis of Colorectal Cancer After Heart Transplantation: Data From the Spanish Post-Heart Transplant Tumor Registry. Transpl Int 2023; 36:11042. [PMID: 37275465 PMCID: PMC10235524 DOI: 10.3389/ti.2023.11042] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2022] [Accepted: 05/04/2023] [Indexed: 06/07/2023]
Abstract
In this observational and multicenter study, that included all patients who underwent a heart transplantation (HT) in Spain from 1984 to 2018, we analyzed the incidence, management, and prognosis of colorectal cancer (CRC) after HT. Of 6,244 patients with a HT and a median follow-up of 8.8 years since the procedure, 116 CRC cases (11.5% of noncutaneous solid cancers other than lymphoma registered) were diagnosed, mainly adenocarcinomas, after a mean of 9.3 years post-HT. The incidence of CRC increased with age at HT from 56.6 per 100,000 person-years among under 45 year olds to 436.4 per 100,000 person-years among over 64 year olds. The incidence rates for age-at-diagnosis groups were significantly greater than those estimated for the general Spanish population. Curative surgery, performed for 62 of 74 operable tumors, increased the probability of patient survival since a diagnosis of CRC, from 31.6% to 75.7% at 2 years, and from 15.8% to 48.6% at 5 years, compared to patients with inoperable tumors. Our results suggest that the incidence of CRC among HT patients is greater than in the general population, increasing with age at HT.
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Affiliation(s)
| | | | | | | | | | | | | | | | - Sonia Mirabet-Pérez
- Hospital de la Santa Creu i Sant Pau, Universitat Autònoma de Barcelona, Barcelona, Spain
| | | | | | | | | | | | | | | | - Javier Muñiz
- Grupo de Investigación Cardiovascular (GRINCAR), University of A Coruña, A Coruña, Spain
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7
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Kugelmas M, Zapata I, Tawil J, Pessetto A, Taglienti M, Kugelmas M. Liver Cirrhosis Increases the Risk of Developing Advanced Colon Polyps. Dig Dis Sci 2023; 68:931-938. [PMID: 35670896 DOI: 10.1007/s10620-022-07561-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/09/2021] [Accepted: 05/09/2022] [Indexed: 12/09/2022]
Abstract
GOALS To analyze our experience with adenoma detection rates in patients with liver cirrhosis in a community setting. BACKGROUND Colorectal cancer (CRC) is the third most common cancer and leading cause of cancer death in men and women in the USA. The majority of CRCs arise from premalignant polyps (adenomas), which are typically detected and removed during colonoscopy. Data are limited on the risk of CRC in patients with various chronic liver diseases and the association between CRC and demographics, liver disease etiology and colonoscopy findings. STUDY RESULTS A total of 351 colonoscopies were performed (2006 to 2019) in patients with liver cirrhosis. Mean age was 62.3 ± 9.4 years, there were 158 females and 193 males. Adenomas were found in 159 procedures (49.07%) and were more likely found in the right colon (76.73%) vs the left colon (18.87%). Left-sided adenoma occurrence was significantly lower in women (61% lower than men, p = 0.05). Neither indication for the procedure (p = 0.08) nor advancing age (p = 0.94) affected adenoma detection rates. No significant differences were observed in the findings of adenomas between different chronic liver diseases. CONCLUSIONS Adenoma detection rates in patients with cirrhosis (49%) undergoing elective colonoscopy were higher than rates reported in the literature for LT candidates (22-42%) undergoing standardized screenings. Colonoscopy screenings should be expanded to all patients with cirrhosis, regardless of etiology.
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Affiliation(s)
| | - Isain Zapata
- Department of Biomedical Sciences, Rocky Vista University, Parker, CO, 80134, USA
| | - Jose Tawil
- Gastroenterologia Diagnostica y Terapéutica - Belgrano, Buenos Aires, Argentina
| | - Annelisa Pessetto
- Department of Internal Medicine, Dell Seton Medical Center at the University of Texas, Austin, TX, 78701, USA
| | - Michael Taglienti
- Warren Alpert Medical School of Brown University, Providence, RI, 02903, USA
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Serkies K, Dębska-Ślisień A, Kowalczyk A, Lizakowski S, Małyszko J. Malignancies in adult kidney transplant candidates and recipients: current status. Nephrol Dial Transplant 2022:6674222. [PMID: 35998321 DOI: 10.1093/ndt/gfac239] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Posttransplant malignancies, particularly recurrent and de novo, in solid organs including kidney transplant recipients (KTRs) are a significant complication associated with substantial mortality, largely attributed to long-term immunosuppression necessary to maintain allograft tolerance. Older age at transplantation and oncogenic virus infection along with pretransplant malignancies are among the main factors contributing to the risk of cancer in this population. As the mean age of transplant candidates rises, the rate of transplant recipients with pretransplant malignancies also increases. The eligibility criteria for transplantation in patients with prior cancer have recently changed. The overall risk of posttransplant malignancies is at least double after transplantation including KTRs relative to the general population, most pronounced for skin cancers associated with UV radiation and virally-mediated tumors. The risk of renal cell carcinoma is specifically increased in the kidney transplant population. The therapy of cancer in transplant patients is associated with risk of higher toxicity, and graft rejection and/or impairment, which poses a unique challenge in the management. Reduction of immunosuppression and the use of mTOR inhibitors are common after cancer diagnosis, although optimal immunosuppression for transplant recipients with cancer remains undefined. Suboptimal cancer treatment contributing to a worse prognosis has been reported for malignancies in this population. In this article, we focus on the prevalence and outcomes of posttransplant malignancies, cancer therapy including a short overview of immunotherapy, cancer screening and prevention strategies, and immunosuppression as a cancer risk factor. The 2020/2021 recommendations of the Kidney Diseases Improving Global Outcome (KDIGO) and American Society of Transplantation (AST) for transplant candidates with a history of cancer are presented.
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Affiliation(s)
- Krystyna Serkies
- Department of Oncology and Radiotherapy, Medical University of Gdańsk, Poland
| | - Alicja Dębska-Ślisień
- Department of Nephrology, Transplantology and Internal Medicine, Medical University of Gdańsk, Poland
| | - Anna Kowalczyk
- Department of Oncology and Radiotherapy, Medical University of Gdańsk, Poland
| | - Sławomir Lizakowski
- Department of Nephrology, Transplantology and Internal Medicine, Medical University of Gdańsk, Poland
| | - Jolanta Małyszko
- Department of Nephrology, Dialysis and Internal Medicine, Warsaw Medical University, Poland
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Hussan H, Akinyeye S, Mihaylova M, McLaughlin E, Chiang C, Clinton SK, Lieberman D. Colorectal Cancer Risk Is Impacted by Sex and Type of Surgery After Bariatric Surgery. Obes Surg 2022; 32:2880-2890. [PMID: 35731459 DOI: 10.1007/s11695-022-06155-0] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2022] [Revised: 06/08/2022] [Accepted: 06/09/2022] [Indexed: 11/26/2022]
Abstract
PURPOSE Sex differences exist in the associations between obesity and the risk of colorectal cancer (CRC). However, limited data exist on how sex affects CRC risk after bariatric surgery. MATERIALS AND METHODS This retrospective cohort study used the 2012-2020 MarketScan database. We employed a propensity-score-matched analysis and precise coding to define CRC in this nationwide US study. Adjusted hazards ratio (HR) assessed CRC risk ≥ 6 months. In a restricted analysis, logistic regression with adjusted odds ratios (OR) examined CRC risk ≥ 3 years. RESULTS Our sample included 327,734 controls with severe obesity and 88,630 patients with Roux-en-Y gastric bypass (RYGB) or sleeve gastrectomy (VSG). The odds of cessation of diabetes mellitus medications, a surrogate for diabetes remission, were higher post-surgery vs. controls, especially in RYGB and males. In females, CRC risk decreased post-RYGB compared to controls (HR = 0.40, 95%CI: 0.18-0.87, p = 0.02). However, VSG was not associated with lower CRC risk in females. Paradoxically, in males compared to controls, CRC risk trended toward an almost significant increase, especially after 3 years or more from surgery (OR = 2.18, 95%CI: 0.97-4.89, p = 0.06). Males had a higher risk of CRC, particularly rectosigmoid cancer, than females after bariatric surgery (HR = 2.69, 95% CI: 1.35-5.38, p < 0.001). Furthermore, diabetes remission was not associated with a lower CRC risk post-surgery. CONCLUSION Our data suggest an increased risk of CRC in males compared to females after bariatric surgery. Compared to controls, there was a decrease in CRC risk in females' post-RYGB but not VSG. Mechanistic studies are needed to explain these differences.
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Affiliation(s)
- Hisham Hussan
- Division of Gastroenterology, Hepatology, and Nutrition, Department of Internal Medicine, The Ohio State University, 395 W. 12th Avenue, 2nd floor, Columbus, OH, 43210, USA.
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, UC Davis Medical Center, Sacramento, CA, USA.
| | - Samuel Akinyeye
- Division of Gastroenterology, Hepatology, and Nutrition, Department of Internal Medicine, The Ohio State University, 395 W. 12th Avenue, 2nd floor, Columbus, OH, 43210, USA
| | - Maria Mihaylova
- Comprehensive Cancer Center, The Ohio State University, Columbus, OH, USA
- Department of Biological Chemistry and Pharmacology, College of Medicine, The Ohio State University, Columbus, OH, USA
| | - Eric McLaughlin
- Department of Biomedical Informatics, College of Medicine, The Ohio State University, Columbus, OH, USA
| | - ChienWei Chiang
- Department of Biomedical Informatics, College of Medicine, The Ohio State University, Columbus, OH, USA
| | - Steven K Clinton
- Comprehensive Cancer Center, The Ohio State University, Columbus, OH, USA
- Division of Medical Oncology, Department of Internal Medicine, College of Medicine, The Ohio State University, Columbus, OH, USA
| | - David Lieberman
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, Oregon Health & Science University, Portland, OR, USA
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10
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Increased Risk of Advanced Colonic Adenomas and Timing of Surveillance Colonoscopy Following Solid Organ Transplantation. Dig Dis Sci 2022; 67:1858-1868. [PMID: 33973084 DOI: 10.1007/s10620-021-06987-3] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/27/2020] [Accepted: 03/30/2021] [Indexed: 12/18/2022]
Abstract
BACKGROUND Detection and removal of colonic adenomatous polyps (CAP) decreases colorectal cancer (CRC) development, particularly with more or larger polyps or polyps with advanced villous/dysplastic histology. Immunosuppression following solid organ transplantation (SOT) may accelerate CAP development and progression compared to average-risk population but the benefit of earlier colonoscopic surveillance is unclear. AIMS Study the impact of maintenance immunosuppression post-SOT on developmental timing, multiplicity and pathological features of CAP, by measuring incidence of advanced CAP (villous histology, size ≥ 10 mm, ≥ 3 polyps, presence of dysplasia) post-SOT and the incidence of newly diagnosed CRC compared to average-risk age-matched population. METHODS Single-center retrospective cohort study of SOT recipients. RESULTS 295 SOT recipients were included and were compared with 291 age-matched average-risk controls. The mean interval between screening and surveillance colonoscopies between SOT and control groups was 6.3 years vs 5.9 years (p = 0.13). Post-SOT maintenance immunosuppression mean duration averaged 59.9 months at surveillance colonoscopy. On surveillance examinations, SOT recipients exhibited more advanced (≥ 10 mm) adenomas compared to matched controls (9.2% vs. 3.8%, p = 0.034; adjusted OR 2.38; 95% CI 1.07-5.30). CONCLUSION SOT recipients appear at higher risk for developing advanced CAP, suggesting that earlier surveillance should be considered.
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Datta RR, Schran S, Persa OD, Aguilar C, Thelen M, Lehmann J, Garcia-Marquez MA, Wennhold K, Preugszat E, Zentis P, von Bergwelt-Baildon MS, Quaas A, Bruns CJ, Kurschat C, Mauch C, Löser H, Stippel DL, Schlößer HA. Post-transplant Malignancies Show Reduced T-cell Abundance and Tertiary Lymphoid Structures as Correlates of Impaired Cancer Immunosurveillance. Clin Cancer Res 2022; 28:1712-1723. [PMID: 35191474 DOI: 10.1158/1078-0432.ccr-21-3746] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2021] [Revised: 12/11/2021] [Accepted: 02/03/2022] [Indexed: 11/16/2022]
Abstract
PURPOSE An increased risk to develop cancer is one of the most challenging negative side effects of long-term immunosuppression in organ transplant recipients and impaired cancer immunosurveillance is assumed as underlying mechanism. This study aims to elucidate transplant-related changes in the tumor immune microenvironment (TME) of cancer. EXPERIMENTAL DESIGN Data from 123 organ transplant recipients (kidney, heart, lung, and liver) were compared with historic data from non-immunosuppressed patients. Digital image analysis of whole-section slides was used to assess abundance and spatial distribution of T cells and tertiary lymphoid structures (TLS) in the TME of 117 tumor samples. Expression of programmed cell death 1 ligand 1 (PD-L1) and human-leucocyte-antigen class I (HLA-I) was assessed on tissue microarrays. RESULTS We found a remarkably reduced immune infiltrate in the center tumor (CT) regions as well as the invasive margins (IM) of post-transplant cancers. These differences were more pronounced in the IM than in the CT and larger for CD8+ T cells than for CD3+ T cells. The Immune-score integrating results from CT and IM was also lower in transplant recipients. Density of TLS was lower in cancer samples of transplant recipients. The fraction of samples with PD-L1 expression was higher in controls whereas decreased expression of HLA-I was more common in transplant recipients. CONCLUSIONS Our study demonstrates the impact of immunosuppression on the TME and supports impaired cancer immunosurveillance as important cause of post-transplant cancer. Modern immunosuppressive protocols and cancer therapies should consider the distinct immune microenvironment of post-transplant malignancies.
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Affiliation(s)
- Rabi R Datta
- Center for Molecular Medicine Cologne, Faculty of Medicine and University Hospital Cologne, University of Cologne, Cologne, Germany
- Department of General, Visceral, Cancer and Transplantation Surgery, Faculty of Medicine and University Hospital Cologne, University of Cologne, Cologne, Germany
| | - Simon Schran
- Center for Molecular Medicine Cologne, Faculty of Medicine and University Hospital Cologne, University of Cologne, Cologne, Germany
- Department of General, Visceral, Cancer and Transplantation Surgery, Faculty of Medicine and University Hospital Cologne, University of Cologne, Cologne, Germany
| | - Oana-Diana Persa
- Department of Dermatology, University of Cologne, Faculty of Medicine and University Hospital Cologne, Cologne, Germany
- Center for Integrated Oncology, CIO ABCD Aachen, Bonn, Cologne, Düsseldorf
| | - Claire Aguilar
- Department of General, Visceral, Cancer and Transplantation Surgery, Faculty of Medicine and University Hospital Cologne, University of Cologne, Cologne, Germany
| | - Martin Thelen
- Center for Molecular Medicine Cologne, Faculty of Medicine and University Hospital Cologne, University of Cologne, Cologne, Germany
| | - Jonas Lehmann
- Center for Molecular Medicine Cologne, Faculty of Medicine and University Hospital Cologne, University of Cologne, Cologne, Germany
| | - Maria A Garcia-Marquez
- Center for Molecular Medicine Cologne, Faculty of Medicine and University Hospital Cologne, University of Cologne, Cologne, Germany
| | - Kerstin Wennhold
- Center for Molecular Medicine Cologne, Faculty of Medicine and University Hospital Cologne, University of Cologne, Cologne, Germany
| | - Ella Preugszat
- Center for Molecular Medicine Cologne, Faculty of Medicine and University Hospital Cologne, University of Cologne, Cologne, Germany
| | - Peter Zentis
- Cluster of Excellence for Aging-Associated Diseases, CECAD Imaging Facility Cologne, University of Cologne, Cologne, Germany
| | | | - Alexander Quaas
- Center for Integrated Oncology, CIO ABCD Aachen, Bonn, Cologne, Düsseldorf
- Institute of Pathology, Faculty of Medicine and University Hospital Cologne, University of Cologne, Cologne, Germany
| | - Christiane J Bruns
- Department of General, Visceral, Cancer and Transplantation Surgery, Faculty of Medicine and University Hospital Cologne, University of Cologne, Cologne, Germany
- Center for Integrated Oncology, CIO ABCD Aachen, Bonn, Cologne, Düsseldorf
| | - Christine Kurschat
- Center for Integrated Oncology, CIO ABCD Aachen, Bonn, Cologne, Düsseldorf
- Department of Internal Medicine II, Faculty of Medicine and University Hospital Cologne, University of Cologne, Cologne, Germany
| | - Cornelia Mauch
- Department of Dermatology, University of Cologne, Faculty of Medicine and University Hospital Cologne, Cologne, Germany
- Center for Integrated Oncology, CIO ABCD Aachen, Bonn, Cologne, Düsseldorf
| | - Heike Löser
- Center for Integrated Oncology, CIO ABCD Aachen, Bonn, Cologne, Düsseldorf
- Institute of Pathology, Faculty of Medicine and University Hospital Cologne, University of Cologne, Cologne, Germany
| | - Dirk L Stippel
- Department of General, Visceral, Cancer and Transplantation Surgery, Faculty of Medicine and University Hospital Cologne, University of Cologne, Cologne, Germany
- Center for Integrated Oncology, CIO ABCD Aachen, Bonn, Cologne, Düsseldorf
| | - Hans A Schlößer
- Center for Molecular Medicine Cologne, Faculty of Medicine and University Hospital Cologne, University of Cologne, Cologne, Germany
- Department of General, Visceral, Cancer and Transplantation Surgery, Faculty of Medicine and University Hospital Cologne, University of Cologne, Cologne, Germany
- Center for Integrated Oncology, CIO ABCD Aachen, Bonn, Cologne, Düsseldorf
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12
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De Novo Malignancy After Liver Transplantation: Risk Assessment, Prevention, and Management-Guidelines From the ILTS-SETH Consensus Conference. Transplantation 2022; 106:e30-e45. [PMID: 34905760 DOI: 10.1097/tp.0000000000003998] [Citation(s) in RCA: 28] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
De novo malignancies (DNMs) following liver transplantation (LT) have been reported as 1 of the major causes of late mortality, being the most common cause of death in the second decade after LT. The overall incidence of DNMs is reported to be in the range of 3.1% to 14.4%, and the incidence is 2- to 3-fold higher in transplant recipients than in age- and sex-matched healthy controls. Long-term immunosuppressive therapy, which is the key in maintaining host tolerance and achieving good long-term outcomes, is known to contribute to a higher risk of DNMs. However, the incidence and type of DNM also depends on different risk factors, including patient demographics, cause of the underlying chronic liver disease, behavior (smoking and alcohol abuse), and pre-existing premalignant conditions. The estimated standardized incidence ratio for different DNMs is also variable. The International Liver Transplantation Society-Spanish Society of Liver Transplantation Consensus Conference working group on DNM has summarized and discussed the current available literature on epidemiology, risk factors, management, and survival after DNMs. Recommendations for screening and surveillance for specific tumors, as well as immunosuppression and cancer-specific management in patients with DNM, are summarized.
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13
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Nonylphenol regulates TL1A through the AhR/HDAC2/HNF4α pathway in endothelial cells to promote the angiogenesis of colorectal cancer. Toxicol Appl Pharmacol 2021; 436:115854. [PMID: 34974051 DOI: 10.1016/j.taap.2021.115854] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2021] [Revised: 12/17/2021] [Accepted: 12/26/2021] [Indexed: 11/22/2022]
Abstract
BACKGROUND Colorectal cancer (CRC) is one of the most malignant cancers worldwide. Nonylphenol (NP) is an endocrine-disruptor chemical and plays an important role in the development of cancers. However, the effects of NP on CRC remain unclear. In this study, we aimed to investigate the potential mechanisms of NP in the pathogenesis of CRC. METHODS The levels of AhR, TL1A and HDAC2 in CRC tissues and endothelial cells were assessed by RT-qPCR or western blot. CHIP and dual luciferase reporter assays were used to confirm the interaction between AhR and HDAC2, or HNF4α and TL1A. The CCK8, would healing and tube formation assays were conducted to evaluate the proliferation, migration and angiogenesis of HUVECs. Western blot determined HNF4α protein and HNF4α acetylation levels. The secreted TL1A protein was detected by ELISA. The angiogenesis-related factor CD31 was tested by IHC. RESULTS The expression level of AhR was significantly up-regulated in CRC tissues and endothelial cells. Moreover, NP activated the AhR pathway mediated colorectal endothelial cell angiogenesis and proliferation, while TL1A overexpression resisted these effects caused by NP. Besides, NP was found to modulate HNF4α deacetylation through AhR/HDAC2 to inhibit TL1A. Furthermore, in vivo experiments proved that NP regulated CRC growth and angiogenesis via AhR/HDAC2/HNF4α/TL1A axis. CONCLUSION This study revealed that NP promoted CRC growth and angiogenesis through AhR/HDAC2/HNF4α/TL1A pathway and could be a new therapeutic target for CRC treatment.
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14
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J Burton S, Hachem C, Abraham JM. Luminal Gastrointestinal Manifestations of Cystic Fibrosis. Curr Gastroenterol Rep 2021; 23:4. [PMID: 33758994 DOI: 10.1007/s11894-021-00806-5] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/12/2021] [Indexed: 12/12/2022]
Abstract
PURPOSE OF REVIEW People with cystic fibrosis (CF) are living longer. General age-related and CF-specific gastrointestinal symptoms are increasingly recognized. In this article, we review the latest data on luminal gastrointestinal manifestations in CF. RECENT FINDINGS People with CF have increased incidence of gastroesophageal reflux disease symptoms and often prescribed proton-pump inhibitors (PPI). PPI use may increase risk of pulmonary exacerbations. Evidence to support gastric fundoplication to improve pulmonary outcomes is limited. Features of intestinal dysmotility are common. There are distinct differences in the gut microbiome in the CF population which may have clinical implications. CF is a possible hereditary digestive cancer syndrome, particularly in regard to colorectal cancer (CRC) with earlier incidence of CRC and advanced colonic neoplasia. Early screening colonoscopy is warranted in the CF population. Gastrointestinal manifestations in CF are prevalent across all digestive organs. More study on the effect of interventions for symptomatic treatment and cancer screening is needed.
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Affiliation(s)
- Samuel J Burton
- Division of Gastroenterology and Hepatology, Saint Louis University, St. Louis, MI, USA
| | - Christine Hachem
- Division of Gastroenterology and Hepatology, Saint Louis University, St. Louis, MI, USA
| | - James M Abraham
- Department of Gastroenterology and Hepatology, University of Michigan, Ann Arbor, MI, USA.
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15
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Oliveira RC, Tavares-Silva E, Abrantes AM, Antunes H, Teixeira P, Gomes A, Martins R, Furtado E, Figueiredo A, Costa B, Cipriano MA, Tralhão JG, Botelho MF. De novo colorectal cancer after liver and kidney transplantation–Microenvironment disturbance. TRANSPLANTATION REPORTS 2020. [DOI: 10.1016/j.tpr.2020.100057] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
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16
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Watschinger B, Budde K, Crespo M, Heemann U, Hilbrands L, Maggiore U, Mariat C, Oberbauer R, Oniscu GC, Peruzzi L, Sorensen SS, Viklicky O, Abramowicz D. Pre-existing malignancies in renal transplant candidates-time to reconsider waiting times. Nephrol Dial Transplant 2020; 34:1292-1300. [PMID: 30830155 DOI: 10.1093/ndt/gfz026] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2018] [Accepted: 12/24/2018] [Indexed: 12/12/2022] Open
Abstract
Current proposals for waiting times for a renal transplant after malignant disease may not be appropriate. New data on malignancies in end-stage renal disease and recent diagnostic and therapeutic options should lead us to reconsider our current practice.
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Affiliation(s)
- Bruno Watschinger
- Department of Nephrology, Medical University of Vienna, Vienna, Austria
| | - Klemens Budde
- Department of Nephrology, Charité Medical University Berlin, Berlin, Germany
| | - Marta Crespo
- Department of Nephrology, Hospital del Mar, Barcelona, Spain; Institute Mar for Medical Research, Parc de Salut Mar, Barcelona, Spain
| | - Uwe Heemann
- Department of Nephrology, Klinikum rechts der Isar, Technical University of Munich, Munich, Germany
| | - Luuk Hilbrands
- Department of Nephrology, Radboud University Medical Center, Nijmegen, The Netherlands
| | - Umberto Maggiore
- Department of Nephrology, Azienda Ospedaliero-Universitaria di Parma, Parma, Italy
| | - Christophe Mariat
- Department of Nephrology, Dialysis, and Renal Transplantation, University North Hospital, Saint Etienne, France
| | - Rainer Oberbauer
- Department of Nephrology, Medical University of Vienna, Vienna, Austria
| | | | - Licia Peruzzi
- Pediatric Nephrology Unit, Regina Margherita Children's Hospital, Turin, Italy
| | - Søren S Sorensen
- Department of Nephrology, Rigshospitalet, University of Copenhagen, Copenhagen, Denmark
| | - Ondrej Viklicky
- Department of Nephrology, Institute for Clinical and Experimental Medicine, Prague, Czech Republic
| | - Daniel Abramowicz
- Department of Nephrology, Antwerp University Hospital, Antwerp University, Antwerp, Belgium
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Li Y, Li J, Bian N. DNILMF-LDA: Prediction of lncRNA-Disease Associations by Dual-Network Integrated Logistic Matrix Factorization and Bayesian Optimization. Genes (Basel) 2019; 10:E608. [PMID: 31409034 PMCID: PMC6722840 DOI: 10.3390/genes10080608] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2019] [Revised: 07/22/2019] [Accepted: 08/07/2019] [Indexed: 12/15/2022] Open
Abstract
Identifying associations between lncRNAs and diseases can help understand disease-related lncRNAs and facilitate disease diagnosis and treatment. The dual-network integrated logistic matrix factorization (DNILMF) model has been used for drug-target interaction prediction, and good results have been achieved. We firstly applied DNILMF to lncRNA-disease association prediction (DNILMF-LDA). We combined different similarity kernel matrices of lncRNAs and diseases by using nonlinear fusion to extract the most important information in fused matrices. Then, lncRNA-disease association networks and similarity networks were built simultaneously. Finally, the Gaussian process mutual information (GP-MI) algorithm of Bayesian optimization was adopted to optimize the model parameters. The 10-fold cross-validation result showed that the area under receiving operating characteristic (ROC) curve (AUC) value of DNILMF-LDA was 0.9202, and the area under precision-recall (PR) curve (AUPR) was 0.5610. Compared with LRLSLDA, SIMCLDA, BiwalkLDA, and TPGLDA, the AUC value of our method increased by 38.81%, 13.07%, 8.35%, and 6.75%, respectively. The AUPR value of our method increased by 52.66%, 40.05%, 37.01%, and 44.25%. These results indicate that DNILMF-LDA is an effective method for predicting the associations between lncRNAs and diseases.
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Affiliation(s)
- Yan Li
- College of Computer Science and Electronic Engineering, Hunan University, Changsha 410082, China
| | - Junyi Li
- College of Computer Science and Electronic Engineering, Hunan University, Changsha 410082, China
| | - Naizheng Bian
- College of Computer Science and Electronic Engineering, Hunan University, Changsha 410082, China.
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Abstract
The average age of liver transplant donors and recipients has increased over the years. Independent of the cause of liver disease, older candidates have more comorbidities, higher waitlist mortality and higher post-transplant mortality than younger patients. However, transplant benefit may be similar in older and younger recipients, provided older recipients are carefully selected. The cohort of elderly patients transplanted decades ago is also increasingly raising issues concerning long-term exposure to immunosuppression and aging of the transplanted liver. Excellent results can be achieved with elderly donors and there is virtually no upper age limit for donors after brain death liver transplantation. The issue is how to optimise selection, procurement and matching to ensure good results with elderly donors. The impact of old donor age is more pronounced in younger recipients and patients with a high model for end-stage liver disease score. Age matching between the donor and the recipient should be incorporated into allocation policies with a multistep approach. However, age matching may vary depending on the objectives of different allocation policies. In addition, age matching must be revisited in the era of direct-acting antivirals. More restrictive limits have been adopted in donation after circulatory death. Perfusion machines which are currently under investigation may help expand these limits. In living donor liver transplantation, donor age limit is essentially guided by morbidity related to procurement. In this review we summarise changing trends in recipient and donor age. We discuss the implications of older age donors and recipients. We also consider different options for age matching in liver transplantation that could improve outcomes.
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19
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Ping P, Wang L, Kuang L, Ye S, Iqbal MFB, Pei T. A Novel Method for LncRNA-Disease Association Prediction Based on an lncRNA-Disease Association Network. IEEE/ACM TRANSACTIONS ON COMPUTATIONAL BIOLOGY AND BIOINFORMATICS 2019; 16:688-693. [PMID: 29993639 DOI: 10.1109/tcbb.2018.2827373] [Citation(s) in RCA: 61] [Impact Index Per Article: 12.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
An increasing number of studies have indicated that long-non-coding RNAs (lncRNAs) play critical roles in many important biological processes. Predicting potential lncRNA-disease associations can improve our understanding of the molecular mechanisms of human diseases and aid in finding biomarkers for disease diagnosis, treatment, and prevention. In this paper, we constructed a bipartite network based on known lncRNA-disease associations; based on this work, we proposed a novel model for inferring potential lncRNA-disease associations. Specifically, we analyzed the properties of the bipartite network and found that it closely followed a power-law distribution. Moreover, to evaluate the performance of our model, a leave-one-out cross-validation (LOOCV) framework was implemented, and the simulation results showed that our computational model significantly outperformed previous state-of-the-art models, with AUCs of 0.8825, 0.9004, and 0.9292 for known lncRNA-disease associations obtained from the LncRNADisease database, Lnc2Cancer database, and MNDR database, respectively. Thus, our approach may be an excellent addition to the biomedical research field in the future.
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