Histological and lectin histochemical studies on the olfactory and respiratory mucosae of the sheep.
J Vet Med Sci 2013;
76:339-46. [PMID:
24200894 PMCID:
PMC4013359 DOI:
10.1292/jvms.13-0436]
[Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
Abstract
The olfactory and respiratory mucosae of the Corriedale sheep were examined
using lectin histochemistry in order to clarify the histochemical and glycohistochemical
differences between these two tissues. The olfactory epithelium was stained with 13
lectins out of 21 lectins examined, while the respiratory epithelium was positive to 16
lectins. The free border of both of the olfactory and respiratory epithelia was stained
with 12 lectins: Wheat germ agglutinin (WGA), succinylated-wheat germ agglutinin (s-WGA),
Lycopersicon esculentum lectin (LEL), Solanum
tuberosum lectin (STL), Datura stramonium lectin (DSL),
Soybean agglutinin (SBA), Bandeiraea simplicifolia lectin-I (BSL-I),
Ricinus communis agglutinin-I (RCA-120), Erythrina
cristagalli lectin (ECL), Concanavalin A (Con A), Phaseolus
vulgaris agglutinin-E (PHA-E) and Phaseolus vulgaris
agglutinin-L (PHA-L). The associated glands of the olfactory mucosa, Bowman’s glands, were
stained with 13 lectins. While both the goblet cells and mucous nasal glands were stained
with 8 lectins; five of them (WGA, s-WGA, STL, Vicia villosa agglutinin
(VVA) and ECL) were mutually positive among the Bowman’s glands, mucous nasal glands and
the goblet cells. These findings indicate that the glycohistochemical characteristics of
the free borders of both olfactory and respiratory epithelia are similar to each other,
suggesting that secretions from the Bowman’s glands and those of the goblet cells and
mucous nasal glands are partially exchanged between the surface of two epithelia to
contribute the functions of the respiratory epithelium and the olfactory receptor cells,
respectively.
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