PMID- 35454103 OWN - NLM STAT- MEDLINE DCOM- 20220426 LR - 20220716 IS - 2218-273X (Electronic) IS - 2218-273X (Linking) VI - 12 IP - 4 DP - 2022 Mar 29 TI - Curcumin and Ethanol Effects in Trembler-J Schwann Cell Culture. LID - 10.3390/biom12040515 [doi] LID - 515 AB - Charcot-Marie-Tooth (CMT) syndrome is the most common progressive human motor and sensory peripheral neuropathy. CMT type 1E is a demyelinating neuropathy affecting Schwann cells due to peripheral-myelin-protein-22 (PMP22) mutations, modelized by Trembler-J mice. Curcumin, a natural polyphenol compound obtained from turmeric (Curcuma longa), exhibits dose- and time-varying antitumor, antioxidant and neuroprotective properties, however, the neurotherapeutic actions of curcumin remain elusive. Here, we propose curcumin as a possible natural treatment capable of enhancing cellular detoxification mechanisms, resulting in an improvement of the neurodegenerative Trembler-J phenotype. Using a refined method for obtaining enriched Schwann cell cultures, we evaluated the neurotherapeutic action of low dose curcumin treatment on the PMP22 expression, and on the chaperones and autophagy/mammalian target of rapamycin (mTOR) pathways in Trembler-J and wild-type genotypes. In wild-type Schwann cells, the action of curcumin resulted in strong stimulation of the chaperone and macroautophagy pathway, whereas the modulation of ribophagy showed a mild effect. However, despite the promising neuroprotective effects for the treatment of neurological diseases, we demonstrate that the action of curcumin in Trembler-J Schwann cells could be impaired due to the irreversible impact of ethanol used as a common curcumin vehicle necessary for administration. These results contribute to expanding our still limited understanding of PMP22 biology in neurobiology and expose the intrinsic lability of the neurodegenerative Trembler-J genotype. Furthermore, they unravel interesting physiological mechanisms of cellular resilience relevant to the pharmacological treatment of the neurodegenerative Tremble J phenotype with curcumin and ethanol. We conclude that the analysis of the effects of the vehicle itself is an essential and inescapable step to comprehensibly assess the effects and full potential of curcumin treatment for therapeutic purposes. FAU - Vazquez Alberdi, Lucia AU - Vazquez Alberdi L AUID- ORCID: 0000-0002-3398-4961 AD - Laboratorio de Biologia Celular del Sistema Nervioso Periferico, Departamento de Proteinas y Acidos Nucleicos, Instituto de Investigaciones Biologicas Clemente Estable, Montevideo 11600, Uruguay. FAU - Rosso, Gonzalo AU - Rosso G AUID- ORCID: 0000-0003-4847-9850 AD - Max-Planck-Institute for the Science of Light, 91058 Erlangen, Germany. AD - Max-Planck-Zentrum fur Physik und Medizin, 91058 Erlangen, Germany. AD - Institute of Physiology II, University of Munster, 48149 Munster, Germany. FAU - Veloz, Lucia AU - Veloz L AD - Seccion Biologia Celular, Facultad de Ciencias, Universidad de la Republica, Montevideo 11400, Uruguay. FAU - Romeo, Carlos AU - Romeo C AD - Departamento de Proteinas y Acidos Nucleicos, Instituto de Investigaciones Biologicas Clemente Estable, Montevideo 11600, Uruguay. FAU - Farias, Joaquina AU - Farias J AUID- ORCID: 0000-0003-2167-9123 AD - Espacio de Biologia Vegetal del Noreste, Centro Universitario de Tacuarembo, CENUR Noreste, Universidad de la Republica, Tacuarembo 45000, Uruguay. FAU - Di Tomaso, Maria Vittoria AU - Di Tomaso MV AD - Departamento de Genetica, Instituto de Investigaciones Biologicas Clemente Estable, Montevideo 11600, Uruguay. FAU - Calero, Miguel AU - Calero M AUID- ORCID: 0000-0001-5366-3324 AD - Unidad de Encefalopatias Espongiformes, UFIEC, CIBERNED, Instituto de Salud Carlos III, 28029 Madrid, Spain. AD - Queen Sofia Foundation Alzheimer Center, CIEN Foundation, 28031 Madrid, Spain. FAU - Kun, Alejandra AU - Kun A AUID- ORCID: 0000-0002-7070-0171 AD - Laboratorio de Biologia Celular del Sistema Nervioso Periferico, Departamento de Proteinas y Acidos Nucleicos, Instituto de Investigaciones Biologicas Clemente Estable, Montevideo 11600, Uruguay. AD - Seccion Bioquimica, Facultad de Ciencias, Universidad de la Republica, Montevideo 11400, Uruguay. LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20220329 PL - Switzerland TA - Biomolecules JT - Biomolecules JID - 101596414 RN - 0 (Myelin Proteins) RN - 3K9958V90M (Ethanol) RN - IT942ZTH98 (Curcumin) SB - IM MH - Animals MH - Cell Culture Techniques MH - *Charcot-Marie-Tooth Disease/drug therapy/genetics/metabolism MH - *Curcumin/pharmacology MH - Ethanol/pharmacology MH - Mammals/metabolism MH - Mice MH - Myelin Proteins/genetics/metabolism PMC - PMC9025918 OTO - NOTNLM OT - CMT1E OT - Hsps OT - Trembler-J OT - autophagy OT - curcumin OT - ethanol COIS- The authors declare no conflict of interest. EDAT- 2022/04/24 06:00 MHDA- 2022/04/27 06:00 PMCR- 2022/03/29 CRDT- 2022/04/23 01:03 PHST- 2022/02/26 00:00 [received] PHST- 2022/03/15 00:00 [revised] PHST- 2022/03/17 00:00 [accepted] PHST- 2022/04/23 01:03 [entrez] PHST- 2022/04/24 06:00 [pubmed] PHST- 2022/04/27 06:00 [medline] PHST- 2022/03/29 00:00 [pmc-release] AID - biom12040515 [pii] AID - biomolecules-12-00515 [pii] AID - 10.3390/biom12040515 [doi] PST - epublish SO - Biomolecules. 2022 Mar 29;12(4):515. doi: 10.3390/biom12040515.