Viral determinants of HIV-1 sufficient to extend tropism to macrophages are distinct from the determinants that control the cytopathic phenotype in HL-60 cells.

Abstract excerpt

DESIGN: Infection of the human promyelocytic cell line HL-60 with NL4-3, a molecularly cloned HIV-1 strain that productively infects T cells, results in adaptation of the virus and production of a variant, NL4-3(M). Unlike NL4-3, NL4-3(M) has a rapid cytopathic effect in HL-60 and other myeloid cell lines. OBJECTIVE: To demonstrate that the tropism of NL4-3(M) is extended to primary monocyte-derived macrophages...

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