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Currently, few reports are available on pathophysiological events related to enzyme deficiencies and subsequent sulfatide accumulation. This research aims to examine the use of metformin as an alternative treatment to counteract these effects. This was evaluated in human Schwann cells (HSCs) transfected or non-transfected with CRISPR-Cas9, and later treated with sulfatides and metformin. This resulted in transfected HSCs showing a significant increase in cell reactive oxygen species (ROS) production when exposed to 100 \u00b5M sulfatides (\n                    <jats:italic>p<\/jats:italic>\n                    = 0.0007), compared to non-transfected HSCs. Sulfatides at concentrations of 10 to 100 \u00b5M affected mitochondrial bioenergetics in transfected HSCs. Moreover, these analyses showed that transfected cells showed a decrease in basal and maximal respiration rates after exposure to 100 \u00b5M sulfatide. However, maximal and normal mitochondrial respiratory capacity decreased in cells treated with both sulfatide and metformin. This study has provided valuable insights into bioenergetic and mitochondrial effects of sulfatides in HSCs for the first time. Treatment with metformin (500 \u00b5M) restored the metabolic activity of these cells and decreased ROS production.\n                  <\/jats:p>","DOI":"10.1098\/rsob.210371","type":"journal-article","created":{"date-parts":[[2022,7,5]],"date-time":"2022-07-05T19:05:19Z","timestamp":1657047919000},"update-policy":"https:\/\/doi.org\/10.1098\/crossmark-policy","source":"Crossref","is-referenced-by-count":3,"title":["A model of metformin mitochondrial metabolism in metachromatic leukodystrophy: first description of human Schwann cells transfected with CRISPR-Cas9"],"prefix":"10.1098","volume":"12","author":[{"ORCID":"https:\/\/orcid.org\/0000-0001-8517-8331","authenticated-orcid":false,"given":"Nayibe Tatiana","family":"Sanchez-\u00c1lvarez","sequence":"first","affiliation":[{"name":"Faculty of Medical and Health Sciences, Masira Institute for Biomedical Research, Universidad de Santander, Bucaramanga, Colombia"},{"name":"Faculty of Health, Phd in Biomedical Sciences, Universidad del Valle, Cali, Colombia"},{"name":"Research Center Floridablanca, Colombian Cardiovascular Foundation, FL, Colombia"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-1206-324X","authenticated-orcid":false,"given":"Paula Katherine","family":"Bautista-Ni\u00f1o","sequence":"additional","affiliation":[{"name":"Research Center Floridablanca, Colombian Cardiovascular Foundation, FL, Colombia"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-0697-3386","authenticated-orcid":false,"given":"Juanita","family":"Trejos-Su\u00e1rez","sequence":"additional","affiliation":[{"name":"Faculty of Medical and Health Sciences, Masira Institute for Biomedical Research, Universidad de Santander, Bucaramanga, Colombia"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-3532-2002","authenticated-orcid":false,"given":"Norma Cecilia","family":"Serrano-D\u00edaz","sequence":"additional","affiliation":[{"name":"Research Center Floridablanca, Colombian Cardiovascular Foundation, FL, Colombia"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"175","published-online":{"date-parts":[[2022,7,6]]},"reference":[{"key":"e_1_3_7_2_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.ymgmr.2019.100460"},{"key":"e_1_3_7_3_2","doi-asserted-by":"publisher","DOI":"10.21931\/RB\/2021.06.03.32"},{"key":"e_1_3_7_4_2","doi-asserted-by":"publisher","DOI":"10.1001\/jamanetworkopen.2018.5031"},{"key":"e_1_3_7_5_2","doi-asserted-by":"publisher","DOI":"10.5582\/irdr.2016.01085"},{"key":"e_1_3_7_6_2","doi-asserted-by":"publisher","DOI":"10.1038\/jhg.2012.97"},{"key":"e_1_3_7_7_2","unstructured":"The Human Gene Mutation Database. 2021 HGMD gene ARSA. 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