scholarly journals Heme-Oxygenase and Kidney Transplantation: A Potential for Target Therapy?

Biomolecules ◽  
2020 ◽  
Vol 10 (6) ◽  
pp. 840
Author(s):  
Daniela Corona ◽  
Burcin Ekser ◽  
Rossella Gioco ◽  
Massimo Caruso ◽  
Chiara Schipa ◽  
...  

Kidney transplantation is a well-established therapy for patients with end-stage renal disease. While a significant improvement of short-term results has been achieved in the short-term, similar results were not reported in the long-term. Heme-oxygenase (HO) is the rate-limiting enzyme in heme catabolism, converting heme to iron, carbon monoxide, and biliverdin. Heme-oxygenase overexpression may be observed in all phases of transplant processes, including brain death, recipient management, and acute and chronic rejection. HO induction has been proved to provide a significant reduction of inflammatory response and a reduction of ischemia and reperfusion injury in organ transplantation, as well as providing a reduction of incidence of acute rejection. In this review, we will summarize data on HO and kidney transplantation, suggesting possible clinical applications in the near future to improve the long-term outcomes.

Author(s):  
A. I. Sushkov

Nowadays, kidney transplantation is the best approach of renal replacement therapy for the majority of patients with end-stage renal disease that significantly improves the quality and length of life. Advances in the field of organ donation, immunosuppression, transplant surgery and immunology have improved short-term graft and patient survival. But the long-term graft survival remains static over last two decades. The disparity between low graft and high patient long-term survival led to increasing number of transplant recipients with failed grafts. Repeat renal transplant is presumed to be a good option for many patients losing their grafts, but it is associated with higher complication rates. Unfortunately, there are no evidence-based recommendations or guidelines for renal retransplantation procedure. This review is based on 100 scientifi c publications related to various aspects of the kidney retransplantation and provides the recent data on this matter.


2020 ◽  
Vol 95 (1) ◽  
pp. 18-26
Author(s):  
Myung-Gyu Kim

Kidney transplantation (KT) is the best way to improve the quality of life and survival of patients with end-stage renal disease. However, after KT the adaptive immune system plays important roles in the development of rejection via multiple pathways. Accordingly, the suppression or modulation of these pathways is key to allograft survival. Advances in our understanding of the immunology related to KT with the development of immunosuppressants have reduced the rate of acute rejection and improved short-term transplant outcomes. Nonetheless, <i>de novo</i> donor-specific antibodies and subsequent chronic rejection continue to be responsible for the poor long-term survival of transplanted patients. In addition, the morbidity and mortality rates in patients returning to dialysis after graft failure are high. Better long-term outcomes following KT require innovative treatment strategies that include a focus on de novo antibodies. Here, we review basic transplant immunology as well as the diagnostic tools and medications that contribute to successful KT. We also provide an update on newly developed immunosuppressants.


2017 ◽  
Vol 37 (5) ◽  
pp. 535-541 ◽  
Author(s):  
Youn Kyung Kee ◽  
Jung Tak Park ◽  
Chang-Yun Yoon ◽  
Hyoungnae Kim ◽  
Seohyun Park ◽  
...  

Background Maintaining peritoneal dialysis (PD) for a long time is problematic owing to a number of factors. This study aimed to clarify the characteristics and examine the clinical outcomes of patients who received PD as a long-term dialysis modality. Methods All end-stage renal disease (ESRD) patients who initiated PD at Yonsei University Health System between 1987 and 2000 were screened. Patients who maintained PD for over 15 years were classified as the long-term PD group and those who were treated with PD for less than 5 years were included in the short-term PD group. Demographic and biochemical data and clinical outcomes were compared between the groups. Independent factors associated with long-term PD maintenance were ascertained using multivariate logistic regression analysis. Results Among 1,116 study patients, 87 (7.8%) were included in the long-term group and 293 (26.3%) were included in the short-term group. In the long-term group, the mean patient age at PD initiation was 39.6 ± 11.5 years, 35 patients (40.2%) were male, and the mean PD duration was 205.3 ± 32.7 months. Patients were younger, body weight was lower, the proportion of patients with diabetes or cardiovascular diseases was lower, and the proportion of low to low-average transporters was higher in the long-term group than in the short-term group ( p < 0.001). Multiple logistic regression analysis revealed that age, body mass index (BMI), serum creatinine, type of PD solution, and diabetes were significant independent factors associated with long-term PD maintenance. Conclusion Peritoneal dialysis can be considered as a long-term renal replacement therapy option, especially in non-diabetic, not overweight, and young ESRD patients.


Nephron ◽  
2020 ◽  
pp. 1-6
Author(s):  
Jun Shoji ◽  
Akiko Mii ◽  
Mika Terasaki ◽  
Akira Shimizu

<b><i>Background:</i></b> Focal segmental glomerulosclerosis (FSGS) is a clinicopathological syndrome characterized by nephrotic-range proteinuria with high incidence of progression to end-stage renal disease (ESRD). In primary FSGS, 40–60% of patients develop ESRD within 10–20 years. <b><i>Summary:</i></b> Recurrence of FSGS after kidney transplantation is frequent and is associated with poor allograft survival. The risk factors for recurrent FSGS include onset of FSGS during childhood, rapid progression of primary FSGS to ESRD, history of recurrent FSGS in previous allograft, and diffuse mesangial hypercellularity or collapsing variant of FSGS in the native kidney. The early histological findings of recurrent FSGS consist of unremarkable glomerular changes on light microscopy but significant podocyte effacement on electron microscopy; the loss of foot processes with eventual dropout of podocytes leads to the development of segmental lesions in the glomerulus. Experimental and clinical data suggest the existence of circulating permeability factors, such as soluble urokinase-type plasminogen activator receptor (suPAR), cardiotrophin-like cytokine factor-1 (CLCF-1), CD40 axis, and apolipoprotein A-Ib (ApoA-Ib), in the pathogenesis of recurrent FSGS. These biomarkers including circulating permeability factors may facilitate earlier diagnosis of FSGS posttransplant and may guide in the development of novel therapies that may be more effective and improve long-term outcomes in kidney transplantation. <b><i>Key Messages:</i></b> Several studies have suggested the possible circulating permeability factors, such as suPAR, CLCF-1, CD40 axis, and ApoA-Ib, in the pathogenesis and disease progression of FSGS and recurrent FSGS. Further studies should be performed to elucidate the true essential biomarker(s) associated with the onset and progression of FSGS as well as recurrent FSGS.


Kidney transplantation is the optimal treatment for end stage renal disease. However, there are risks both from early complications directly related to the surgical procedure, and from longer-term complications resulting from the effects of immunosuppression. This chapter describes the transplant process from the evaluation of patients with renal failure for suitability for transplantation, through the surgical procedure itself, the early and late management of recipients, and the management of the complications that can arise, including acute and chronic graft dysfunction, infection, malignancy, and cardiovascular disease. It also covers the short- and long-term outcomes of kidney transplantation. Since live kidney donors have become an increasingly important source of kidneys for renal transplantation, it also describes the work-up process for potential live donors and the long-term outcomes following donation. Finally, combined kidney/pancreas transplantation is included separately and includes a discussion around the selection and evaluation recipients, the surgical procedure, short- and long-term complications, and the outcomes.


2021 ◽  
Vol 8 (11) ◽  
pp. 1761
Author(s):  
Sharad Sheth ◽  
Abi Abraham ◽  
Georgi Abraham ◽  
Sampath Kumar

Renal diseases like chronic kidney disease (CKD) and end-stage renal disease (ESRD) are a major healthcare burden in developing countries like India. Kidney transplantation is considered to be the most viable treatment option for such patients. In comparison to dialysis, renal transplantation is associated with reduced mortality and improved quality of life. However, a major challenge experienced in transplant procedures is transplant rejection. Four virtual advisory board meetings involving 30 nephrology experts were conducted to discuss the current therapeutic landscape of kidney transplant rejection in India and subsequent practice-based insights of the experts were garnered. The experts concurred on the need for appropriate screening including immunological profiling, diagnosis, and management of candidates for transplantation. While immunosuppressive therapy and strategies like plasmapheresis, intravenous immunoglobulin, corticosteroids, and rituximab have been well established in the treatment of transplant rejection, novel and emerging treatment modalities like interleukin-6 antagonists, imlifidase or complement inhibitors have shown promise and should be considered. Increased awareness among physicians about the development of newer immunosuppressive regimens with lower side effects that may improve long-term outcomes of kidney transplantation is warranted.


2018 ◽  
Vol 2 (2) ◽  
pp. 105-112
Author(s):  
Lutfi Zylbeari ◽  
Zamira Bexheti ◽  
Gazmend Zylbeari ◽  
Ferizate Haxhirexha ◽  
Kastriot Haxhirexha

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