[Characteristics of tissue basophils associated with the structures of the general immune system of mucous membranes].

By means of a complex histochemical staining methods human and rat mast cells (MC) have been studied in the organs, where lymphoid tissue makes the common immune system of mucous membranes. The mucous membranes of the stomach body (its glandular part in rats), intestine, bronchi, renal pelvis and calyces, uterine tubes, as well as intralobular ducts of the parotid and mammary glands have been studied in men and rats. As a control--lip, tongue and esophagus have been taken. In the man and rat MC, associated with structures of the common immune system, possess atypical cytochemical characteristics: in their cytoplasm (unlike in MC of the control organs) only sulfated glycosaminoglycans are revealed, while histochemically detected protein, neutral and sialic acid carbohydrate components are not revealed. MC are absent in single lymphoid follicles and in cupola-follicular complexes of grouped lymphoid nodules++ and they are found in all other areas of the objects investigated, interfollicular zones including.