sentence: This approach could therefore be used to identify novel cargo for other endosomal sorting complexes , such as the retromer complexes ( Arighi et al ., 2004 ; Carlton et al ., 2004 ; Seaman , 2004 ; Wassmer et al ., 2007 , 2009 ; Harterink et al ., 2011 ; Cullen and Korswagen , 2012 ) , further sorting nexins , or other endosomal proteins that are involved in the retrieval of cargo away from the lysosomal pathway .