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Figure 2 | Respiratory Research

Figure 2

From: Nicotine signals through muscle-type and neuronal nicotinic acetylcholine receptors in both human bronchial epithelial cells and airway fibroblasts

Figure 2

HBE and airway fibroblasts immunoblotting for nAChR subunits. Whole brain tissue lysate was used as a positive control. A) nAChR in HBE cells from never smokers; B) nAChR in HBE cells from ex-smokers; C) nAChR in airway fibroblast cells from one ex-smoker (1089), two never smokers (1133,1190), and three active smokers (1215, 1225, 1233). For each subunit, the positive control band was seen at the following size: α1 55 kD, α3 60 kD, α4 70 kD, α5 53 kD, α7 56 kD, β1 59 kD, β2 57 kD, and δ 55 kD.

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