Organisms

Spleen Focus-Forming Viruses

Strains of MURINE LEUKEMIA VIRUS that are replication-defective and rapidly transforming. The envelope gene plays an essential role in initiating erythroleukemia (LEUKEMIA, ERYTHROBLASTIC, ACUTE), manifested by splenic foci, SPLENOMEGALY, and POLYCYTHEMIA. Spleen focus-forming viruses are generated by recombination with endogenous retroviral sequences.

National Library of MedicineMedical Subject Headings2026

Structured Summary

Abstract

Strains of MURINE LEUKEMIA VIRUS that are replication-defective and rapidly transforming. The envelope gene plays an essential role in initiating erythroleukemia (LEUKEMIA, ERYTHROBLASTIC, ACUTE), manifested by splenic foci, SPLENOMEGALY, and POLYCYTHEMIA. Spleen focus-forming viruses are generated by recombination with endogenous retroviral sequences.

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Synonyms

8 entry terms
  • SFFV
  • Focus-Forming Virus, Spleen
  • Focus-Forming Viruses, Spleen
  • Spleen Focus Forming Viruses
  • Spleen Focus-Forming Virus
  • Friend spleen focus-forming virus
  • Rauscher Spleen Focus-Forming Virus
  • Friend spleen focus forming virus

MeSH Record

Aspects Covered

13 allowable subheadings

Indexed with the subheadings chemistry, classification, drug effects, enzymology, genetics, growth & development, immunology, isolation & purification, metabolism, pathogenicity, physiology, radiation effects, ultrastructure.

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Indexing Annotation

infection: coordinate IM with RETROVIRIDAE INFECTIONS (IM) + TUMOR VIRUS INFECTIONS (IM) + LEUKEMIA, EXPERIMENTAL (IM) or LEUKEMIA, ERYTHROBLASTIC, ACUTE (IM) (for spontaneous erythroleukemia)

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History Note

91(86); was see under MOUSE LEUKEMIA VIRUSES 1986-90

MeSH Record

Previous Indexing

  • Friend Virus (1966-1985)
  • Leukemia, Experimental (1966-1985)
  • Mouse Leukemia Viruses (1966-1985)

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References

  1. National Library of Medicine. Spleen Focus-Forming Viruses. Medical Subject Headings (MeSH). 2026. Unique ID D013155. http://id.nlm.nih.gov/mesh/2026/D013155
  2. Spleen Focus-Forming Viruses. In: Wikidata. https://www.wikidata.org/wiki/Q68760472