Shedding and reappearance of Fc, C3 and SRBC receptors on peripheral lymphocytes from normal donors and chronic lymphatic leukaemia (CLL) patients

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Abstract

The shedding and resynthesis of Fc, C3 receptors, and receptors binding SRBC has been studied in normal peripheral lymphocytes, in lymphocytes from CLL patients and in a Raji cell line during 4 h incubation at 37°. During the first part of the incubation, an increased release of receptors was observed. The shed, functionally active, receptors were detectable in the incubating medium on the basis of their ability to inhibit rosette formation specifically. After 4 h incubation the original ratios of the different rosette forming cells were observed, showing that the cells were capable of resynthesizing their shed receptors. This later phenomenon may be the result of an active metabolic process. The shedding was not detectable on Raji cells. Different patterns of receptor shedding and resynthesis were demonstrated by the lymphocytes of CLL patients. The correlations between the reappearance of the receptors on the cells, and the metabolism of the lymphocytes, is discussed.

Original languageEnglish
Pages (from-to)315-321
Number of pages7
JournalImmunology
Volume34
Issue number2
Publication statusPublished - 1978

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B-Cell Chronic Lymphocytic Leukemia
Tissue Donors
Lymphocytes
Rosette Formation
Fc Receptors
Cell Line

ASJC Scopus subject areas

  • Immunology

Cite this

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title = "Shedding and reappearance of Fc, C3 and SRBC receptors on peripheral lymphocytes from normal donors and chronic lymphatic leukaemia (CLL) patients",
abstract = "The shedding and resynthesis of Fc, C3 receptors, and receptors binding SRBC has been studied in normal peripheral lymphocytes, in lymphocytes from CLL patients and in a Raji cell line during 4 h incubation at 37°. During the first part of the incubation, an increased release of receptors was observed. The shed, functionally active, receptors were detectable in the incubating medium on the basis of their ability to inhibit rosette formation specifically. After 4 h incubation the original ratios of the different rosette forming cells were observed, showing that the cells were capable of resynthesizing their shed receptors. This later phenomenon may be the result of an active metabolic process. The shedding was not detectable on Raji cells. Different patterns of receptor shedding and resynthesis were demonstrated by the lymphocytes of CLL patients. The correlations between the reappearance of the receptors on the cells, and the metabolism of the lymphocytes, is discussed.",
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T1 - Shedding and reappearance of Fc, C3 and SRBC receptors on peripheral lymphocytes from normal donors and chronic lymphatic leukaemia (CLL) patients

AU - Sármay, G.

AU - Istvan, L.

AU - Gergely, J.

PY - 1978

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N2 - The shedding and resynthesis of Fc, C3 receptors, and receptors binding SRBC has been studied in normal peripheral lymphocytes, in lymphocytes from CLL patients and in a Raji cell line during 4 h incubation at 37°. During the first part of the incubation, an increased release of receptors was observed. The shed, functionally active, receptors were detectable in the incubating medium on the basis of their ability to inhibit rosette formation specifically. After 4 h incubation the original ratios of the different rosette forming cells were observed, showing that the cells were capable of resynthesizing their shed receptors. This later phenomenon may be the result of an active metabolic process. The shedding was not detectable on Raji cells. Different patterns of receptor shedding and resynthesis were demonstrated by the lymphocytes of CLL patients. The correlations between the reappearance of the receptors on the cells, and the metabolism of the lymphocytes, is discussed.

AB - The shedding and resynthesis of Fc, C3 receptors, and receptors binding SRBC has been studied in normal peripheral lymphocytes, in lymphocytes from CLL patients and in a Raji cell line during 4 h incubation at 37°. During the first part of the incubation, an increased release of receptors was observed. The shed, functionally active, receptors were detectable in the incubating medium on the basis of their ability to inhibit rosette formation specifically. After 4 h incubation the original ratios of the different rosette forming cells were observed, showing that the cells were capable of resynthesizing their shed receptors. This later phenomenon may be the result of an active metabolic process. The shedding was not detectable on Raji cells. Different patterns of receptor shedding and resynthesis were demonstrated by the lymphocytes of CLL patients. The correlations between the reappearance of the receptors on the cells, and the metabolism of the lymphocytes, is discussed.

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