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Figure 4 | Reproductive Biology and Endocrinology

Figure 4

From: The interleukin 1 (IL-1) system in the uteroplacental complex of a cartilaginous fish, the smoothhound shark, Mustelus canis

Figure 4

(A and B). Immunohistochemistry of the uterus and placenta for IL-1R tI shows the leucocytes (leu) of both mother and fetus positive, uterine epithelium (ut) intensely positive, egg envelope (ee) negative, yolk sac ectoderm (ec) negative and endoderm (en) modestly positive. (C) Immunohistochemistry of paraplacental cells for IL-1R tI shows the same staining pattern as for both IL-1 α and β with the apical aspect of the epithelium (e) positive and the mucous (m) component negative. (D) Staining of the umbilical cord for IL-1R tI illustrates positive staining of apical vesicles in the epithelium (e) while the microvilli (mv) are intensely positive.

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