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. 2021 Jul 12;10:e66396. doi: 10.7554/eLife.66396

Figure 1. Cholinergic auditory efferent neurons identified with the retrograde tracer CTB were tdTomato-positive in ChAT-Cre/tdTomato mice.

Figure 1.

(A) ChAT-Cre/tdTomato-positive neurons in the LSO and VNTB of the superior olivary complex co-labeled with anti-ChAT antibody (B) confirming they are cholinergic neurons (C). ChAT-Cre/tdTomato-positive neurons in the ipsilateral LSO (D) and contralateral VNTB (E) were retrogradely labeled by cochlear CTB injections. (F) Contralateral to cochlear CTB injections, 66.1% of ChAT-Cre/tdTomato-positive VNTB neurons were labeled. In ipsilateral VNTB, 28.9% of ChAT-Cre/tdTomato=positive neurons were labeled (N = 3 mice, 205 cells). Abbreviations: LNTB, lateral nucleus of the trapezoid body; LSO, lateral superior olive; VNTB, ventral nucleus of the trapezoid body; CTB, cholera toxin subunit B.