Abstract
The localization of alpha-naphthyl acid esterase (ANAE) activity in T lymphocytes with receptors for IgM (T(M) cells) have been studied at the electron microsope. The electron-opaque product of the cytochemical reaction was detected around, but never inside, single (or groups of) vesicles, which suggested a possible membrane localization of the enzyme activity. These same vesicles were found to contain acid phosphatase by both light- and electron-microscopic examination and were bound by unit membranes; this data indicates that they likely represent primary lysosomes. The presence of such lysosomes in a restricted paranuclear area is a distinctive feature of T(M) cells.
Original language | English |
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Pages (from-to) | 40-46 |
Number of pages | 7 |
Journal | American Journal of Pathology |
Volume | 105 |
Issue number | 1 |
Publication status | Published - 1981 |
ASJC Scopus subject areas
- Pathology and Forensic Medicine