38-LB: Ex Vivo Immune Cell Function Analysis in Patients with CKD Undergoing Dialysis Treatment Monitors Exercise Treatment Effects on Immunosurveillance
Bibliographic record
Abstract
Chronic kidney disease (CKD) is marked by a pre-aging and dysfunctional immune system and chronic inflammation. Recent research indicates that chronic physical exercise training (ET) increases regulatory monocytes and T-cells thus modulating the inflammatory status associated with cardio-metabolic diseases. In particular, ET primes monocytes and T-cells towards a less inflammatory phenotype. We hypothesized that intradialytic ET is beneficial to patients with CKD by improving certain immune cell features and decreasing systemic inflammation. We isolated PBMCs from a subset of 18 patients with CKD (58-90 years, 38 % females) enrolled in the prospective intervention trial DiaTT (Dialysis Training Therapy; ClinicalTrials.gov: NCT03885102) at the beginning and after a 12-months intradialytic ET intervention (aerobic endurance + resistance training). Circulating immune cell populations were characterized by FACS. Ex-vivo basal and PMA-induced T-cell activation was determined by cell surface expression analysis of CD69. We found that ET reversed the shift towards intermediate monocytes, a known marker for CKD morbidity and mortality, and nonclassical monocytes in patients with CKD undergoing dialysis treatment. We observed an increase in naïve T-cells and Recent Thymic Emigrants (RTE) indicating an improvement of T-cell function. On T-cells, basal CD69 expression was significantly enhanced and PMA-induced CD69 expression was severely impaired in patients with CKD compared to healthy control subjects (n= 7). When patients with CKD underwent ET this specific T-cell function was restored to normal levels. Here, we show that even in these severely sick patients certain circulating immune cell functions can be regained potentially leading to an enhanced immunosurveillance. Our ex-vivo immune cell characterization and function analysis can be used to monitor exercise treatment effects on systemic inflammation. Disclosure S. M. Hofmann: None. S. M. Dinges: None. M. Walter: None. P. Vonkorn: None. G. D. Vongersdorff: None. K. Anding-rost: None. M. Halle: Advisory Panel; Abbott, Speaker's Bureau; Boehringer Ingelheim (Canada) Ltd., Daiichi Sankyo, Amgen Inc., BMS.
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How this classification was reachedexpand
Full frame machine prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. The Gemma side is a direct model label for every work in the frame, read from the title-only record. The Codex side is a classifier learned from the 10,348 direct Codex labels and calibrated to design-weighted sample rates; fields without enough sample support carry no Codex call. Candidate is the union of the two sides; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels.
Distilled classifier scores by category (both heads)
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.000 | 0.000 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.000 | 0.000 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.002 | 0.000 |
Machine scores (provisional)
The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.
Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from itClassification
machine, unvalidatedMachine predicted; a candidate call from one source (direct Gemma or distilled Codex), not a consensus.
How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".