Allogeneic Mesenchymal Stem Cells for Treatment of Experimental Autoimmune Encephalomyelitis
Why this work is in the frame
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Bibliographic record
Abstract
The use of allogeneic “universal donor” mesenchymal stromal cells (MSCs) may be a substantial clinical convenience for treatment of autoimmune ailments such as multiple sclerosis. We therefore tested whether allogeneic MSCs can be exploited for treatment of experimental autoimmune encephalomyelitis (EAE) in mice with otherwise intact immune system. Administration of allogeneic Balb/c-derived MSCs to C57Bl/6 mice with pre-established EAE led to a significant decrease in disease score over time comparable to that achieved with syngeneic MSCs, and was correlated with a significant blunting of immune cell infiltration to the spinal cord and reduced circulating levels of interferon-γ (IFN-γ) and interleukin-17. Pretreatment of allogeneic MSCs with IFN-γ increased the expression levels of CCL2 as well as major histocompatibility complex I (MHCI) and MHCII, but also led to complete loss of suppressive activity in vivo that correlated with immune rejection. In conclusion, allogeneic MSCs can suppress the manifestations of EAE, yet retain the potential for alloimmunization. The use of allogeneic “universal donor” mesenchymal stromal cells (MSCs) may be a substantial clinical convenience for treatment of autoimmune ailments such as multiple sclerosis. We therefore tested whether allogeneic MSCs can be exploited for treatment of experimental autoimmune encephalomyelitis (EAE) in mice with otherwise intact immune system. Administration of allogeneic Balb/c-derived MSCs to C57Bl/6 mice with pre-established EAE led to a significant decrease in disease score over time comparable to that achieved with syngeneic MSCs, and was correlated with a significant blunting of immune cell infiltration to the spinal cord and reduced circulating levels of interferon-γ (IFN-γ) and interleukin-17. Pretreatment of allogeneic MSCs with IFN-γ increased the expression levels of CCL2 as well as major histocompatibility complex I (MHCI) and MHCII, but also led to complete loss of suppressive activity in vivo that correlated with immune rejection. In conclusion, allogeneic MSCs can suppress the manifestations of EAE, yet retain the potential for alloimmunization.
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Full frame distilled prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.
Codex and Gemma teacher scores by category
| 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) | 0.000 | 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 it