Research on murine leukemia virus established the concept that virus variants, distinguished by different in vitro infectivity patterns, are related to distinct pathological forms of leukemia induced.

The Vth International Symposium On Compartive Leukemia Research, Padova, Italy, 1971.

In the foreground from left Peter Gunvén, Eva Maria Fenyö and Eva Klein.

List of eight key publications:

1: Fenyö EM, Klein E, Klein G, Swiech K. Selection of an immunoresistant Moloney lymphoma subline with decreased concentration of tumor-specific surface antigens. J Natl Cancer Inst. 1968 Jan;40(1):69-89. PubMed PMID: 4864597.

2: Fenyö EM, Biberfeld P, Klein E. Studies on the relations between virus release and cellular immunosensitivity in Moloney lymphomas. J Natl Cancer Inst. 1969 May;42(5):837-55. PubMed PMID: 5785011.

3: Wiener F, Fenyö EM, Klein G, Harris H. Fusion of tumour cells with host cells. Nat New Biol. 1972 Aug 2;238(83):155-9. PubMed PMID: 4506195.

4: Fenyö EM, Grundner G. Characteristics of murine C-type viruses. I. Independent assortment of infectivity in one in vivo and four in vitro assays. Int J Cancer. 1973 Sep 15;12(2):452-62. PubMed PMID: 4365461.

5: Fenyö EM, Grundner G, Wiener F, Klein E, Klein G, Harris H. The influence of the partner cell on the production of L virus and the expression of viral surface antigen in hybrid cells, J Exp Med. 1973 May 1;137(5):1240-55. PMID: 4349752.

6: Fenyö EM, Nazerian K, Klein E. Characteristics of murine C-type viruses. II. The behavior of viruses resident in various cell lines and their hybrids on BALB-3T3 and mouse embryo fibroblast cultures" Virology. 1974 Jun;59(2):574-9. PubMed PMID: 4364828.

7: Fenyo EM, Yefenof E, Klein E, Klein G. Immunization of mice with syngeneic Moloney lymphoma cells induces separate antibodies against virion envelope glycoprotein and virus-induced cell surface antigens, J Exp Med. 1977 Dec 1;146(6):1521-33. PMID: 925612

8: Fenyö EM, Klein G. Independence of Moloney virus-induced cell-surface antigen and membrane-associated virion antigens in immunoselected lymphoma sublines. Nature. 1976 Mar 25;260(5549):355-7. PubMed PMID: 1256579.