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. 1970 Jul 1;132(1):148–162. doi: 10.1084/jem.132.1.148

SYNTHESIS AND ASSEMBLY OF IMMUNOGLOBULINS BY MALIGNANT HUMAN PLASMACYTES

I. MYELOMAS PRODUCINGγ-CHAINS AND LIGHT CHAINS

Susan Zolla 1, Joel Buxbaum 1, E C Franklin 1, M D Scharff 1
PMCID: PMC2138755  PMID: 5508244

Abstract

Three basic patterns of γ-globulin synthesis are described in malignant human plasmacytes: extreme unbalanced synthesis where only L chains are synthesized; unbalanced synthesis in which intact γG globulin and an excess of free L chains are synthesized and secreted; and balanced synthesis where H and L chains appear to be synthesized in equimolar amounts. Studies of the cellular products appear to reflect the biosynthetic processes of the cells in a more reliable fashion than does analysis of serum or urinary proteins. The absence of Bence Jones proteins from the urine does not necessarily indicate that free L chains are not being synthesized and secreted at the cellular level. Similarly, the completed globulin molecule secreted by malignant plasma cells may not be demonstrable by examination of serum. Patterns of globulin synthesis in human myelomatous tissues vary as do patterns of globulin synthesis in mouse plasmacytomas. Pulse-chase studies of the cells from one patient showed that a γG myeloma protein was assembled via an HL (half molecule) intermediate.

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Selected References

These references are in PubMed. This may not be the complete list of references from this article.

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