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Lloyd J. Old discovers the first linkage between the major histocompatibility complex (MHC) and disease—mouse leukemia—opening the way for the recognition of the importance of the MHC in the immune response.

Historical image related to Lloyd J. Old discovers the first linkage between the major histocompatibility complex (MHC) and disease—mouse leukemia—opening the way for the recognition of the importance of the MHC in the immune response. from December 5, 1964

Lloyd J. Old

20th-century American immunology researcher

Lloyd John Old was an American medical researcher, and one of the founders of the field of cancer immunology. When Old began his career in 1958, tumor immunology was in its infancy. Today, cancer immunotherapies are a significant advance in cancer therapy.
Source: Wikipedia (CC BY-SA)

Major histocompatibility complex

Cell surface proteins, part of the acquired immune system

The major histocompatibility complex (MHC) is a large locus on vertebrate DNA containing a set of closely linked polymorphic genes that code for cell surface proteins essential for the adaptive immune system. These cell surface proteins are called MHC molecules.
Source: Wikipedia (CC BY-SA)