Table 2

List of published iPSC-derived lines modelling CMT

CMT subtypeNew classificationGenetic mutationStarting materialCell line typeMode of generationPhenotypesMechanismsReferences
CMT1A AD-CMTde-PMP22 PMP22 duplication FibroblastiPSC, pN, NCSC, Schwann cellsRetroviral vectors expressing OCT4, SOX2, KFL4 and C-MYCSchwann cell developmental defectDevelopmental disabilities of Schwann cells,
RNA sequencing hinting towards dysregulation of cholesterol synthesis, autophagy, PTEN,ERK/MAPK and EPHRIN receptor signalling
s28
CMT1A AD-CMTde-PMP22 PMP22 duplication naiPSC, NCSCnanaGlobal gene expression analysiss27
CMT2A AD-CMTax-MFN2 R364W_
MFN2
FibroblastiPSC, sMNRetroviral vectors expressing SOX2, OCT3/4, KFL4 and C-MYCMitochondria moved at slower anterograde and retrograde velocities, hyperexcitable motor neurons and altered sodium and calcium channel dynamicsIncreased neuronal firing possibly due to Na+/K+pump failures21
CMT2E AD-CMTax-NEFL N98S_NEFL FibroblastiPSC, sMNRetroviral vectors expressing SOX2, OCT3/4, KFL4 and C-MYCIncreased accumulation of NEFL in the perikarya of neurons, mitochondria travelled shorter distances at slower velocities, hyperexcitable motor neurons and altered sodium and calcium channel dynamicsImpaired mitochondrial trafficking, increased neuronal firing possibly due to Na+/K+pump failures21
CMT2F and dHMN-IIB AD-CMTax-HSPB1 S135F, P182L_HSPB1 FibroblastiPSC, MNSendai virus- vectors, expressing SOX2, OCT4,KLF4, and c-MYCLess moving mitochondria, Reduced absolute velocity of mitochondriaDefects in mitochondrial transport, reduced α-tubulin acetylations25
CMT2A,CMT2E,
CMT2F,
CMT2L
AD-CMTax-MFN2, AD-CMTax-NEFL, AD-CMTax/dHMNax-HSPB1, AD-CMTax-HSPB8 R94Q_MFN2, P8R_NEFL, K141N_HSPB8_and G84R_HSPB1 FibroblastiPSC, sMNSendai virus- vectors, expressing SOX2, OCT3/4,KLF4and c-MYCReduced PFN2 expression in R94Q_MFN2, P8R_NEFL sMN liness22
Demyelinating neuropathies: (CMT1A, CMT1B and CMT1D) AD-CMTde-PMP22, AD-CMTde-MPZ, AD-CMTde-EGR2 PMP22
Duplication, R98C_ MPZ, R353G_ EGR2
PBMCiPSCs, NCSCEpisomal vectors encoding OCT3/4, SOX2, KLF4, L-MYC, LIN28 and p53Global gene expression, analysis of NCSC- glutathione-mediated detoxification pathway as common pathway behind demyelinating neuropathiess29
CMTXXL-CMTin-GJB V139M_GJB1 FibroblastiPSCEpisomal vectors encoding OCT4, SOX2, KLF4, L-MYC, LIN28 and shRNA-p53s95
CMT1F AR-CMTde-NEFL A367*_NEFL FibroblastiPSCEpisomal, retroviral and Sendai viral vectors encoding
OCT4, SOX2, KLF4 and MYC
Complete absence of NEFL proteinAltered Intermediate filament transcript dynamicss96
  • *Nonsense mutation.

  • iPSCs, induced pluripotent stem cells; MN, motor neuron; na, not available; NCSC, neural crest stem cells, progenitor of Schwann cells; PBMCs, peripheral blood mononuclear cells; pN, peripheral neurons; sMN, spinal motor neurons.

  • NCSC, neuronal crest stem cells.