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[Phagocytic lymphocyte-like elements (PLLE) and irradiation in vitro]
Minerva Medica
|November 14, 1978
Summary
Peripheral blood contains radioresistant phagocytes, distinct from lymphocytes, after India ink injection in rats. These findings suggest phagocytes may originate from the mononucleate phagocyte system, not T4 lymphocytes.
Area of Science:
- Hematology
- Immunology
- Cell Biology
Context:
- Peripheral blood analysis in rats post-India ink injection.
- Investigating cellular responses to India ink and radiation exposure.
- Differentiating phagocytic cells from lymphocytes in rat blood.
Purpose:
- To identify and characterize lymphocyte-like phagocytes in rat peripheral blood.
- To assess the radioresistance of these phagocytes compared to lymphocytes.
- To determine the potential origin of these phagocytic cells.
Summary:
- Intracardial India ink injection in rats revealed lymphocyte-like phagocytes in peripheral blood.
- In vitro irradiation (1000 r - 60Co) significantly reduced lymphocytes but preserved phagocyte number and morphology.
- The radioresistance of these phagocytes suggests they belong to the mononucleate phagocyte system rather than T4 lymphocytes, which lack phagocytic capabilities.
Impact:
- Highlights the radioresistance of specific phagocytic cells within the peripheral blood.
- Provides evidence supporting the mononucleate phagocyte system as the origin of these cells.
- Contributes to understanding cellular differentiation and function in hematological and immunological contexts.