RESUMEN
Cytomegalovirus (CMV) infection detrimentally influences graft survival in kidney transplant recipients, with the risk primarily determined by recipient and donor serostatus. However, recipient CD8+ T cells play a crucial role in CMV control. The optimal preventive strategy (prophylaxis vs. pre-emptive treatment), particularly for seropositive (intermediate risk) recipients, remains uncertain. We investigated CD8+ T cell subpopulation dynamics and CMV occurrence (DNAemia ≥ 100 IU/mL) in 65 kidney transplant recipients, collecting peripheral blood mononuclear cells before (T1) and 1 year after transplantation (T2). Comparing the two timepoints, we found an increase in granulocyte, monocyte and CD3+CD8+ T cells numbers, while FoxP3+CD25+, LAG-3+ and PD-1+ frequencies were reduced at T2. CMV DNAemia occurred in 33 recipients (55.8%) during the first year. Intermediate risk patients were disproportionally affected by posttransplant CMV (N = 29/45, 64.4%). Intermediate risk recipients developing CMV after transplantation exhibited lower leukocyte, monocyte, and granulocyte counts and higher FoxP3+CD25+ frequencies in CD3+CD8+ T cells pre-transplantation compared to patients staying CMV negative. Pre-transplant FoxP3+CD25+ in CD3+CD8+ T cells had the best discriminatory potential for CMV infection prediction within the first year after transplantation (AUC: 0.746). The FoxP3+CD25+ CD3+CD8+ T cell subset may aid in selecting intermediate risk kidney transplant recipients for CMV prophylaxis.
Asunto(s)
Linfocitos T CD8-positivos , Infecciones por Citomegalovirus , Factores de Transcripción Forkhead , Subunidad alfa del Receptor de Interleucina-2 , Trasplante de Riñón , Humanos , Trasplante de Riñón/efectos adversos , Infecciones por Citomegalovirus/inmunología , Infecciones por Citomegalovirus/prevención & control , Femenino , Masculino , Linfocitos T CD8-positivos/inmunología , Persona de Mediana Edad , Factores de Transcripción Forkhead/metabolismo , Adulto , Subunidad alfa del Receptor de Interleucina-2/metabolismo , Anciano , Complejo CD3/metabolismo , Citomegalovirus/inmunología , Factores de Riesgo , Receptores de Trasplantes , Supervivencia de Injerto/inmunologíaRESUMEN
Chronic kidney disease (CKD) poses a substantial global health burden. It is classified according to estimated glomerular filtration rate (eGFR) (G1-G5) and albuminuria (A1-A3). In recent years the clinicians' therapeutic options for slowing CKD progression and mitigating cardiovascular disease has been significantly expanded:For CKD with albuminuria, concomitant cardiovascular disease or diabetes mellitus, a target blood pressure <130/80mmHg should be aspired. Apart from the geriatric population and those with a life expectancy below one year a blood pressure <140/90mmHg should be targeted. Renin-angiotensin-system inhibitors (RASi) and sodium-glucose-cotransporter 2 inhibitors (SGLT2i) are the basis of CKD therapy. SGLT2i can be prescribed in most cases of CKD with an eGFR >20ml/min/1.73m2 apart from a few exceptions. Once started, patients should stay on SGLT2i until dialysis. Finerenon is a novel option for diabetic nephropathy with an ACR >30mg/g [3mg/mmol] and an eGFR >25ml/min/1.73m2. Finerenon slows CKD progression and reduces cardiovascular events.