You will be shown an abstract from a biomedical research paper. Given this abstract, your task is to extract all unique entities of the following types: ["RNA", "CellLine", "Protein", "DNA", "CellType"].

Please return the output as a JSON object of the format: {"DNA" : ["TAL1", ...], "RNA": ["mRNAs", ...], "CellLine": ["T cells", ...], "CellType": ["monocytes", ...], "Protein": ["IL-2", ...]}. The keys should be entity types and values should be lists of extracted entities belonging to the corresponding type. If you cannot find entities belonging to a specific type, the value should be [].

Only output the JSON object and do not include any additional text.

Abstract:

Enhancement of human immunodeficiency virus 1 replication in monocytes by 1, 25-dihydroxycholecalciferol. Human immunodeficiency virus (HIV) expression and replication are under tight regulatory control. We demonstrate that 1, 25-dihydroxycholecalciferol [ 1, 25- (OH) 2D3 ] enhances the replication of monocyte-and lymphocyte-tropic strains of HIV-1 up to 10, 000-fold in monocyte cell lines, peripheral blood monocytes, and unfractionated peripheral blood mononuclear cells. 1, 25 (OH) 2D3 is therefore one of the most potent regulators of HIV-1 replication described to date. Precursors of 1, 25 (OH) 2D3 enhance HIV-1 replication in proportion to their affinity for the 1, 25 (OH) 2D3 intracellular receptor, suggesting that 1, 25 (OH) 2D3 influences HIV-1 replication by mechanisms involving this receptor. These studies may have important implications for the design of effective therapy of HIV-1 infection.
{"CellLine": ["monocyte cell lines"], "CellType": ["peripheral blood monocytes", "monocytes", "unfractionated peripheral blood mononuclear cells"], "DNA": [], "Protein": ["1 , 25 (OH) 2D3 intracellular receptor"], "RNA": []}