A Fragment of Adhesion Molecule L1 Binds to Nuclear Receptors to Regulate Synaptic Plasticity and Motor Coordination
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A Fragment of Adhesion Molecule L1 Binds to Nuclear Receptors to Regulate Synaptic Plasticity and Motor Coordination. / Kraus, Kristina; Kleene, Ralf; Henis, Melad; Braren, Ingke; Kataria, Hardeep; Sharaf, Ahmed; Loers, Gabriele; Schachner, Melitta; Lutz, David.
In: MOL NEUROBIOL, Vol. 55, No. 9, 09.2018, p. 7164-7178.Research output: SCORING: Contribution to journal › SCORING: Journal article › Research › peer-review
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T1 - A Fragment of Adhesion Molecule L1 Binds to Nuclear Receptors to Regulate Synaptic Plasticity and Motor Coordination
AU - Kraus, Kristina
AU - Kleene, Ralf
AU - Henis, Melad
AU - Braren, Ingke
AU - Kataria, Hardeep
AU - Sharaf, Ahmed
AU - Loers, Gabriele
AU - Schachner, Melitta
AU - Lutz, David
PY - 2018/9
Y1 - 2018/9
N2 - Proteolytic cleavage of the neuronal isoform of the murine cell adhesion molecule L1, triggered by stimulation of the cognate L1-dependent signaling pathways, results in the generation and nuclear import of an L1 fragment that contains the intracellular domain, the transmembrane domain, and part of the extracellular domain. Here, we show that the LXXLL and FXXLF motifs in the extracellular and transmembrane domain of this L1 fragment mediate the interaction with the nuclear estrogen receptors α (ERα) and β (ERβ), peroxisome proliferator-activated receptor γ (PPARγ), and retinoid X receptor β (RXRβ). Mutations of the LXXLL motif in the transmembrane domain and of the FXXLF motif in the extracellular domain disturb the interaction of the L1 fragment with these nuclear receptors and, when introduced by viral transduction into mouse embryos in utero, result in impaired motor coordination, learning and memory, as well as synaptic connectivity in the cerebellum, in adulthood. These impairments are similar to those observed in the L1-deficient mouse. Our findings suggest that the interplay of nuclear L1 and distinct nuclear receptors is associated with synaptic contact formation and plasticity.
AB - Proteolytic cleavage of the neuronal isoform of the murine cell adhesion molecule L1, triggered by stimulation of the cognate L1-dependent signaling pathways, results in the generation and nuclear import of an L1 fragment that contains the intracellular domain, the transmembrane domain, and part of the extracellular domain. Here, we show that the LXXLL and FXXLF motifs in the extracellular and transmembrane domain of this L1 fragment mediate the interaction with the nuclear estrogen receptors α (ERα) and β (ERβ), peroxisome proliferator-activated receptor γ (PPARγ), and retinoid X receptor β (RXRβ). Mutations of the LXXLL motif in the transmembrane domain and of the FXXLF motif in the extracellular domain disturb the interaction of the L1 fragment with these nuclear receptors and, when introduced by viral transduction into mouse embryos in utero, result in impaired motor coordination, learning and memory, as well as synaptic connectivity in the cerebellum, in adulthood. These impairments are similar to those observed in the L1-deficient mouse. Our findings suggest that the interplay of nuclear L1 and distinct nuclear receptors is associated with synaptic contact formation and plasticity.
U2 - 10.1007/s12035-018-0901-7
DO - 10.1007/s12035-018-0901-7
M3 - SCORING: Journal article
VL - 55
SP - 7164
EP - 7178
JO - MOL NEUROBIOL
JF - MOL NEUROBIOL
SN - 0893-7648
IS - 9
ER -