MS carried out the electron microscopy studies (EDX and colloidal gold studies), participated in the immunohistochemistry and drafted the manuscript.
MN conceived of the study, obtained funding for the study, participated in design and implementation, performed confocal microscopy analysis, prepared final figures and co-drafted the manuscript.
FB and CLB conceived the study, participated in the immunohistochemical staining and light microscopy, and drafted the first version of the manuscript.
DMC conceived of the study, participated in its design and coordination, wrote the manuscript, and carried out part of the microscopy studies on living cells.
ARH conceived of the study, participated in its design and execution, and drafted the manuscript; DT contributed to the conception and planning of the study; RW participated in design of the study and performed the micromanipulation and microscopy.
HS participated in the immunofluorescence and electron microscopy studies.
GT and DW conceived of the study; GT performed the experiments and participated in study design; NR and GM performed the electron microscopy studies; WS and DW designed experiments; and NR, DW, WS, and DBM helped to draft the manuscript.
Research technicians MRL, DWB, LLF, AK and XW participated in animal and Percoll gradient studies and performed Western blot studies and MRL performed the confocal microscopy studies.
CKS assisted in microscopy studies.
SD carried out electron microscopy studies.
