Immunoreactive luteinizing hormone (ir-LH) cells in the lung and stomach of chick embryos

Cell and Tissue Research
N ShirasawaS Ishii

Abstract

Luteinizing hormone (LH) immunoreactivity was detected in the lung and stomach of chick embryos by the immunoperoxidase staining technique using specific antiserum to chicken LH. Immunoreactive LH (ir-LH) cells first appeared in the primordial cells of the epithelial layer of lung bud and foregut as well as of Rathke s pouch in the 3-day-old embryo, Hamburger and Hamilton stage 21. Ir-LH cells increased in number with advancing age of embryos in the lung, stomach, and pituitary gland. In the lung of 7-day-old embryos, stage 31, the ir-LH cells were distributed in the epithelium of primary, secondary, and tertiary bronchi, and their shapes were pseudostratified columnar, simple columnar, and simple cuboidal, depending on their sites in the intrapulmonary airway. Ir-LH cells were more numerous in the median part than in the lateral part of the lung, and the population in the epithelial layer of entobronchi of the secondary bronchi was 4 times higher than that in ectobronchi and laterobronchi of the secondary bronchi and in the primary bronchi. The immunoreactive products were found, either in the entire cell or in the apical part, facing the lumina of bronchi. In the stomach, ir-LH cells were found in the epithelial layer of gast...Continue Reading

Citations

Dec 12, 2001·Molecular and Cellular Endocrinology·A E Murphy, S Harvey
Nov 25, 1998·Comparative Biochemistry and Physiology. Part C, Pharmacology, Toxicology & Endocrinology·S HarveyK L Hull
Apr 20, 1999·General and Comparative Endocrinology·W AllaertsS H Jeurissen

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