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: ["AnatomicalEntity"].

Please return the output as a JSON object of the format: {"AnatomicalEntity": ["tumor cells", ...]}. 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:

Western blots showing C/EBPalpha (top), adiponectin (middle), and GAPDH (bottom) protein bands in confluent GO orbital fibroblast cultures exposed throughout 10 days in culture to the indicated treatments. Lane 1) no treatment; 2) LY294002 (10 muM); 3) M22 (10 ng/ml); 4) M22 plus LY294002.
{"AnatomicalEntity": ["GO orbital fibroblast cultures"]}