Journal: Acta histochemica
Article Title: Immunohistochemical distribution of cannabinoid receptor type 1 (CB1) and type 2 (CB2) in the rat carotid body.
doi: 10.1016/j.acthis.2024.152205
Figure Lengend Snippet: Fig. 1. Immunohistochemistry for CB1 and CB2 in the carotid body. (A) Dot-like CB1 immunoreactivity is observed throughout the carotid body. Intense immu- noreactivity is shown in nerve fibers and/or endings (arrows). (B) A higher magnification view of the rectangle in panel A. Dot-like CB1 immunoreactivity is observed in the perinuclear cytoplasm of chemoreceptor cells (arrows). Intense immunoreactivity for CB1 is also present in nerve endings (arrowheads). (C) Dot-like CB2 immunoreactivity is noted throughout the carotid body. (D) A higher magnification view (rectangle in panel C) shows small dots of CB2 immunoreactivity in the perinuclear region of chemoreceptor cells (arrow). (E-G) Double immunofluorescence for CB1 and CB2 shows CB1-immunoreactive (arrows) and CB2- immunoreactive dots (arrow heads) in the same chemoreceptor cell; however, they are not colocalized.
Article Snippet: CB2: A rabbit polyclonal anti-CB2 antibody (NB300–606, Novus Biologicals, Centennial, CO, U.S.A.) was raised from a fusion protein that contained the first 33 amino acid residues of human CB2.
Techniques: Immunohistochemistry, Immunofluorescence