These receptors direct the homing of primary cancer cells to a metastatic site and can also alter cellular adhesion.
Homing studies with primary BCCs also demonstrate that E-selectin regulates their entry into bone through the sinusoidal niche, and immunohistochemical staining of patient BMs shows dormant micrometastatic disease adjacent to SDF-1 vasculature.
Homing studies with primary BCCs also demonstrate that E-selectin regulates their entry into bone through the sinusoidal niche, and immunohistochemical staining of patient BMs shows dormant micrometastatic disease adjacent to SDF-1+ vasculature.
This interaction increases migration from primary sites as well as homing at distant sites.
Furthermore, selectins are primary adhesion molecules for the homing of circulating HSPCs to the bone marrow during natural haematopoiesis (Schweitzer et al, 1996; Frenette et al, 1998; Peeled et al, 2000).
However, the trend towards more visible, and hence larger, nodules on the lungs of EO771LMB-bearing mice might be due to earlier release of tumour cells from the primary tumour, resulting in earlier homing of tumour cells to lung and larger metastatic nodules.
Recent studies have shown that myeloid cells are involved in primary tumor directed metastatic tumor cell homing to target organs through the creation of preferred sites known as pre-metastatic niches [19], [20].
Several primary tumor proteins were associated with homing of breast cancer cells.
Taking advantage of homing capacities to the primary tumor site, MSCs have been used for the targeted delivery of immunostimulatory cytokines and chemokines, suicide genes, growth-factor antagonists, and oncolytic viruses after systemic administration [ 49].
Ronchetti et al. [ 44] reported that miR-335 was recurrently overexpressed in a fraction of primary tumors, possibly influencing plasma cell homing and/or interactions with the bone marrow microenvironment.
