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Transplantology, Volume 6, Issue 2 (June 2025) – 8 articles

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25 pages, 345 KiB  
Review
Oncological Complications of Liver Transplantation: A Narrative Review on De Novo and Donor-Transmitted Cancers
by Tancredi Vincenzo Li Cavoli, Armando Curto, Erica Nicola Lynch and Andrea Galli
Transplantology 2025, 6(2), 15; https://doi.org/10.3390/transplantology6020015 - 16 May 2025
Abstract
Liver transplantation (LT) has deeply transformed the treatment of end-stage liver disease and hepatocellular carcinoma, offering the most effective therapy for many liver conditions. However, LT carries inherent risks, including the development of cancers, which can arise from the transmission of neoplastic cells [...] Read more.
Liver transplantation (LT) has deeply transformed the treatment of end-stage liver disease and hepatocellular carcinoma, offering the most effective therapy for many liver conditions. However, LT carries inherent risks, including the development of cancers, which can arise from the transmission of neoplastic cells from the donor, the recurrence of pre-existing cancers, or as a long-term effect of the transplant, originating from the recipient’s own cells. The development of cancer in LT recipients is influenced by a variety of factors, such as age, gender, race, the underlying cause of liver disease, lifestyle factors (like alcohol use and smoking), and the use of immunosuppressive therapy. These combined factors increase the susceptibility of LT recipients to several types of cancer, including skin cancers, gastrointestinal malignancies, and lymphoproliferative disorders. While long-term survival after LT has significantly improved, there has been a notable increase in the incidence of de novo malignancies, which underscores the importance of diligent cancer screening and monitoring in transplant recipients, especially as they age. To manage this increased risk, various screening programs are recommended, including annual skin exams, colonoscopies for patients with primary sclerosing cholangitis (PSC) or inflammatory bowel disease (IBD), and lung cancer screening with low-dose CT for former smokers. When cancer is detected in LT recipients, reducing immunosuppression is a crucial strategy. Decreasing calcineurin inhibitors (CNIs) and integrating mTOR inhibitors (mTORis) provide promising avenues for balancing immunological control with oncological risk. Understanding these risk factors and adjusting immunosuppression appropriately is vital for improving cancer outcomes in LT recipients. Although evidence from LT-specific studies remains limited, insights from other solid organ transplant (SOT) settings, especially kidney transplants, offer valuable guidance in managing cancer risks in LT recipients. This narrative review focuses on the prevention and management of de novo and donor-transmitted malignancies. Full article
(This article belongs to the Section Solid Organ Transplantation)
16 pages, 1253 KiB  
Review
Recurrence of Primary Glomerular Diseases After Kidney Transplantation: Incidence, Predictors, Characteristics and Treatment
by Maurizio Salvadori and Giuseppina Rosso
Transplantology 2025, 6(2), 14; https://doi.org/10.3390/transplantology6020014 - 15 May 2025
Viewed by 141
Abstract
Background. Recurrent primary glomerulonephritis is a frequent and severe disease that represents the second or third leading cause of graft loss. Objective. The purpose of this study is to address the rates of recurrence for all types of glomerulonephritis, detailing their characteristics and [...] Read more.
Background. Recurrent primary glomerulonephritis is a frequent and severe disease that represents the second or third leading cause of graft loss. Objective. The purpose of this study is to address the rates of recurrence for all types of glomerulonephritis, detailing their characteristics and the treatments adopted. Methods: The authors collected the main studies and meta-analyses published on PubMed. In addition, the main clinical trials ongoing on the topic were collected. The results highlighted the different frequency of recurrence in relation to the glomerulonephritis considered, assessing the different characteristics and the different treatments adopted. In conclusion, this review confirms the severity of this disease. The treatment possibilities differ among glomerulonephritis variants. Frequently, a pre-transplant period should be distinguished from a peri-transplant period and a post-transplant period. Finally, new drugs are being discovered to treat recurrent glomerulonephritis and several ongoing trials are also discussed. Some of them have shown important results already. Full article
(This article belongs to the Section Solid Organ Transplantation)
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12 pages, 646 KiB  
Article
Examination of Long-Term Diseases, Conditions, Self-Control, and Self-Management in Kidney Transplant Recipients
by Zuleyha Simsek Yaban and Semra Bulbuloglu
Transplantology 2025, 6(2), 13; https://doi.org/10.3390/transplantology6020013 - 8 May 2025
Viewed by 198
Abstract
Objective: This study aims to examine long-term diseases, conditions, self-control, and self-management in kidney transplant recipients. Method: This is a descriptive correlational study, including a total of n = 130 kidney transplant recipients. The data were collected using a demographic information form, the [...] Read more.
Objective: This study aims to examine long-term diseases, conditions, self-control, and self-management in kidney transplant recipients. Method: This is a descriptive correlational study, including a total of n = 130 kidney transplant recipients. The data were collected using a demographic information form, the Post-Kidney Transplant Diseases and Conditions Assessment Form, and the Self-Control and Self-Management Scale. Data analysis was conducted using descriptive statistical methods and one-way ANOVA, and paired sample t-tests. Results: Of the kidney transplant recipients, 40% were aged between 31 and 45 years, and 54.6% were male. The long-term diseases and conditions they developed after kidney transplantation were hypertension (46.2%), heart failure (26.2%), diabetes mellitus (10.8%), heartburn (35.4%), acute kidney failure (26.2%), urinary tract infection (39.2%), sleep disorders (23.1%), and chronic pain (50%). In addition, 31.5% of the kidney transplant recipients had poor self-control and self-management. Conclusions: Long-term postoperative mortality in kidney transplant recipients is mostly caused by diseases developing in vital organs. Therefore, it is crucial to recognize these diseases and conditions for their diagnosis. This study found various diseases and conditions in almost all body systems of kidney transplant recipients. Additionally, there were patients with poor self-control and self-management. We consider that the results of our study will increase awareness among clinicians. Full article
(This article belongs to the Section Solid Organ Transplantation)
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11 pages, 985 KiB  
Article
Impact of Hematopoietic Stem Cell Transplantation on PD-1 Blockade Efficacy in Relapsed/Refractory Hodgkin’s Lymphoma
by Filomena Emanuela Laddaga, Pierluigi Masciopinto, Valentina Bozzoli, Domenico Pastore, Vincenzo Pavone, Angelo Michele Carella, Nicola Di Renzo, Attilio Guarini, Pellegrino Musto and Francesco Gaudio
Transplantology 2025, 6(2), 12; https://doi.org/10.3390/transplantology6020012 - 24 Apr 2025
Viewed by 203
Abstract
Background: Classical Hodgkin lymphoma (cHL) is a treatable malignancy; however, relapsed or refractory (R/R) cases pose significant challenges. PD-1 inhibitors have shown efficacy, but the role of hematopoietic stem cell transplantation (HSCT) following PD-1 blockade remains uncertain. This study aims to evaluate the [...] Read more.
Background: Classical Hodgkin lymphoma (cHL) is a treatable malignancy; however, relapsed or refractory (R/R) cases pose significant challenges. PD-1 inhibitors have shown efficacy, but the role of hematopoietic stem cell transplantation (HSCT) following PD-1 blockade remains uncertain. This study aims to evaluate the impact of HSCT after PD-1 blockade on progression-free survival (PFS) and overall survival (OS) in patients with R/R cHL. Methods: We conducted a multicenter, retrospective study involving 42 patients with R/R cHL who received PD-1 inhibitors between 2016 and 2021. Patients were categorized into two groups: those who underwent HSCT after PD-1 therapy (n = 19) and those who continued PD-1 inhibitors without HSCT (n = 23). Results: Among the 42 patients, 27 achieved complete remission (CR) and 15 achieved partial remission (PR) following PD-1 blockade. In the HSCT group, 92% of patients remained progression-free at 3 years, compared to 65% in the non-HSCT group (p = 0.021). OS rates were similar between groups (100% vs. 96%, p = ns). Notably, 80% of PR patients in the HSCT group converted to CR. Relapse rates were significantly lower in the HSCT group (5%) compared to the non-HSCT group (43%, p = 0.005). Conclusions: HSCT following PD-1 blockade enhances PFS in patients with R/R cHL, particularly among those with PR, without offering a significant OS benefit. Further research is warranted to optimize treatment strategies for this patient population strategies. Full article
(This article belongs to the Section Artificial Organs, Stem Cells and Xenotransplantation)
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12 pages, 533 KiB  
Review
The Current Landscape of Donation After Circulatory Death Heart Transplantation—Where Do We Stand?
by Albert Dweck, Korri S. Hershenhouse, Mayuko Uehara, Tadahisa Sugiura and Brandon E. Ferrell
Transplantology 2025, 6(2), 11; https://doi.org/10.3390/transplantology6020011 - 17 Apr 2025
Viewed by 335
Abstract
The growing disparity between the demand for donor hearts and their availability has reignited interest in donation after circulatory death (DCD) heart transplantation. Historically, DCD heart transplantation has been overshadowed by donation after brain death (DBD) due to ethical and preservation challenges. However, [...] Read more.
The growing disparity between the demand for donor hearts and their availability has reignited interest in donation after circulatory death (DCD) heart transplantation. Historically, DCD heart transplantation has been overshadowed by donation after brain death (DBD) due to ethical and preservation challenges. However, recent advancements in procurement techniques allow for evaluation of the donor heart and enable the broader utilization of DCD donors. While challenges remain, early outcomes suggest comparable survival rates between DCD and DBD heart transplantation. This review provides a comprehensive overview of the historical evolution, current practices, and future directions of DCD heart transplantation. Here, we emphasize its potential to expand the heart donor pool and alleviate the organ shortage crisis. Full article
(This article belongs to the Section Organ and Tissue Donation and Preservation)
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14 pages, 225 KiB  
Review
Optimizing Organ Donation After Euthanasia: A Critical Appraisal
by E. A. J. Alkemade, H. D. Lam, B. J. C. Hendriks, A. E. Braat, I. P. J. Alwayn, M. J. Coenraad and A. G. Baranski
Transplantology 2025, 6(2), 10; https://doi.org/10.3390/transplantology6020010 - 7 Apr 2025
Viewed by 251
Abstract
This Critical Appraisal aims to explore the pharmacokinetics and pharmacodynamics of medications used in organ donors after euthanasia (ODE) and their impact on abdominal organ quality. With the legalization of ODE, the donor pool has expanded, but it has introduced complexities regarding organ [...] Read more.
This Critical Appraisal aims to explore the pharmacokinetics and pharmacodynamics of medications used in organ donors after euthanasia (ODE) and their impact on abdominal organ quality. With the legalization of ODE, the donor pool has expanded, but it has introduced complexities regarding organ quality. This study evaluates existing euthanasia protocols in the Netherlands, Belgium, Spain, and Canada, focusing on differences in the medication types and dosages. Additionally, a literature review assessed the potential hepatotoxic effects of high-dose medications like thiopental, propofol, and non-depolarizing neuromuscular blocking agents. High doses of non-depolarizing neuromuscular blocking agents, particularly rocuronium, are associated with hepatotoxic effects in vitro. Furthermore, thiopental doses exceeding 750 mg significantly increase the risk of liver dysfunction. Recent findings also indicate that high-dose propofol and lidocaine can slightly prolong the time to death, which is crucial for optimizing organ viability in ODE. This study highlights the need to optimize organ donation procedures after euthanasia. Further research is needed to achieve this balance, maintaining the integrity and ethical standards of the euthanasia process while enhancing the outcomes of organ donation. Full article
(This article belongs to the Section Organ and Tissue Donation and Preservation)
12 pages, 235 KiB  
Review
Non-HLA Antibodies in Kidney Transplantation: Pathogenesis, Clinical Impact, and Management Approaches
by Vikash Chandra Mishra, Dinesh Chandra and Vimarsh Raina
Transplantology 2025, 6(2), 9; https://doi.org/10.3390/transplantology6020009 - 1 Apr 2025
Viewed by 419
Abstract
Antibody-mediated rejection is a critical factor in acute and chronic allograft rejection, with Human Leukocyte Antigen as the primary target of the humoral immune response in kidney transplants. In addition to HLA antibodies, non-HLA Abs also play a significant role in AMR. These [...] Read more.
Antibody-mediated rejection is a critical factor in acute and chronic allograft rejection, with Human Leukocyte Antigen as the primary target of the humoral immune response in kidney transplants. In addition to HLA antibodies, non-HLA Abs also play a significant role in AMR. These non-HLA Abs, which can target either autoantigens or alloantigens, may be present pre-transplantation or develop post-transplant. They are associated with various types of allograft injury. The major non-HLA Abs include those directed against the angiotensin II type 1 receptor, endothelin type A receptor, and MICA, as well as other antigens such as vimentin, collagens, and anti-endothelial cell antibodies. Factors such as ischemia, reperfusion injury, and calcineurin inhibitor toxicity can trigger the pathogenic activity of these Abs. The mechanisms underlying non-HLA Ab production are not yet fully understood but are thought to involve endothelial injury and the exposure of neoantigens. Research indicates that these non-HLA Abs can cause graft injury through both complement-dependent and complement-independent pathways. However, detecting non-HLA Abs remains a challenge due to the lack of reliable diagnostic tools. Current treatment strategies for managing the effects of pathogenic non-HLA Abs include intravenous immunoglobulin, plasmapheresis, rituximab, and bortezomib. Early identification of high-risk patients and timely intervention are crucial to preventing graft failure. This review examines the development, mechanisms, and clinical significance of non-HLA Abs in kidney transplantation, highlighting the need for improved diagnostic methods and tailored therapeutic approaches. Full article
(This article belongs to the Section Solid Organ Transplantation)
14 pages, 2670 KiB  
Article
Absence of Exogenous Glucose in the Perfusate During Kidney Hypothermic Machine Perfusion Does Not Affect Mitochondrial Function
by Dafni Efraimoglou, L. Annick van Furth, Albert Gerding, Barbara M. Bakker, Jan-Luuk Hillebrands, Henri G. D. Leuvenink and Leonie H. Venema
Transplantology 2025, 6(2), 8; https://doi.org/10.3390/transplantology6020008 - 22 Mar 2025
Viewed by 319
Abstract
Background: Optimizing organ preservation techniques is imperative in the face of donor kidney shortage and high waiting list mortality. Hypothermic machine perfusion (HMP) has emerged as an effective method to improve graft function post-transplantation, particularly for deceased donor kidneys, prone to ischemia reperfusion [...] Read more.
Background: Optimizing organ preservation techniques is imperative in the face of donor kidney shortage and high waiting list mortality. Hypothermic machine perfusion (HMP) has emerged as an effective method to improve graft function post-transplantation, particularly for deceased donor kidneys, prone to ischemia reperfusion injury (IRI). The perfusion solution includes glucose to support kidney metabolism; however, its effect on mitochondrial function remains unclear. The present study investigated the effect of glucose supplementation during 24 h of oxygenated HMP on mitochondrial function in porcine kidneys. Methods: After 30 min of warm ischemia, porcine slaughterhouse kidneys were preserved for 24 h using HMP with one of the following three solutions: the standard HMP preservation solution, University of Wisconsin machine perfusion (UW-MP) solution, which contains glucose; the solution used for static cold storage, University of Wisconsin cold storage (UW-CS) solution, which lacks glucose; or the UW-CS supplemented with 10 mmol/L glucose. Tissue and perfusate samples were collected before, during, and after perfusion for further analysis. Results: ATP production, mitochondrial respiration, and oxidative stress markers were not significantly different between groups. Glucose was released into the perfusion solution even from kidneys without exogenous glucose supplementation in the perfusate. Conclusions: These results suggest that kidney mitochondrial respiration does not depend on the presence of glucose in the HMP perfusion solution at the start of perfusion, underscoring the need for further exploration of nutrient supplementation and mitochondrial function in organ preservation strategies. Full article
(This article belongs to the Section Organ and Tissue Donation and Preservation)
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