ALS lymphoblastoid cell lines as a considerable model to understand disease mechanisms

New evidences switch the hypothesis of amyotrophic lateral sclerosis (ALS) from a “neurocentric” to a “multisystemic” or “non-neurocentric” point of view. From 2006, we focused on the study of non-neural cells, patients’ peripheral blood mononuclear cells (PMBCs) and lymphoblastoid cell lines (LCLs)...

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Veröffentlicht in:Disease models & mechanisms 2018-01
Hauptverfasser: Pansarasa, O., Bordoni, M., Dufruca, L., Diamanti, L., Sproviero, D., Trotti, R., Bernuzzi, S., La Salvia, S., Gagliardi, S., Ceroni, M., Cereda, C.
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container_title Disease models & mechanisms
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creator Pansarasa, O.
Bordoni, M.
Dufruca, L.
Diamanti, L.
Sproviero, D.
Trotti, R.
Bernuzzi, S.
La Salvia, S.
Gagliardi, S.
Ceroni, M.
Cereda, C.
description New evidences switch the hypothesis of amyotrophic lateral sclerosis (ALS) from a “neurocentric” to a “multisystemic” or “non-neurocentric” point of view. From 2006, we focused on the study of non-neural cells, patients’ peripheral blood mononuclear cells (PMBCs) and lymphoblastoid cell lines (LCLs). Here, we characterized LCLs of sporadic ALS and patients carrying SOD1, TARDBP and FUS mutations to identify ALS biologically relevant signature, and whether and how mutations differentially affect ALS-linked pathways. Although LCLs are different from motor neurons (MNs), in LCLs we find out some features typical of degenerating MNs in ALS, i.e. protein aggregation and mitochondrial dysfunction. Moreover, different gene mutations otherwise affect ALS cellular mechanisms. TARDBP and FUS mutations imbalance mitochondrial dynamism toward an increased fusion, while sALS and SOD1 mutations mainly affect fission. As regard protein aggregation and/or mislocalization, TARDBP and SOD1 mutations show the presence of aggregates, while FUS mutation does not induce protein aggregation and/or mislocalization. Finally, all LCLs, independently from mutation, are not able to work in a condition of excessive energy request, suggesting that mitochondria from ALS patients are characterized by a significant metabolic defect. Taken together these data indicate that LCLs could be indicated as a valid cellular model in ALS research to study specific pathological pathways or to identify new ones.
doi_str_mv 10.1242/dmm.031625
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title ALS lymphoblastoid cell lines as a considerable model to understand disease mechanisms
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