期刊
JOURNAL OF HISTOCHEMISTRY & CYTOCHEMISTRY
卷 48, 期 4, 页码 569-577出版社
SAGE PUBLICATIONS LTD
DOI: 10.1177/002215540004800414
关键词
3D analysis; microvessel environments; hormone-secreting endocrine cells; ACTH; pituitary gland; confocal laser scanning microscopy; FITC-conjugated gelatin injection; histochemistry; immunohistochemistry
类别
There has been considerable interest in the relationship between hormone-secreting endocrine cells and their microvessels in human pituitary gland. However, microcirculatory networks have rarely been studied in three dimensions (3D). This study was designed to visualize and to reveal the relationship between hormone-secreting endocrine cells and their microvessel environment in 3D, using rat pituitary glands under various (hyper/hypo) experimental conditions by confocal laser scanning microscopy (CLSM). Female adult Wistar rats were used after bilateral adrenalectomy or ACTH administration for 2 weeks. Clear 3D reconstructed images of ACTH cells, the microvessel network and counterstained nuclei were obtained at a maximal focus depth of 1 mm by CLSM without any background noise. In the hyperfunctional state, slender cytoplasmic processes of hypertrophic stellate ACTH cells frequently extended to the microvessels. In the hypofunctional state, ACTH cells appeared atrophic and round with scanty cytoplasm, and cytoplasmic adhesions to microvessel network patterns were inconspicuous. Therefore, 3D reconstructed imaging by CLSM is a useful technique with which to investigate the microvessel environment of hormone-secreting cells and has the potential to reveal dynamic hormone-secreting pathways.
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