Table 2 Intracellular detection of TRAIL death receptors in cultured cell lines and primary cells

From: Compartmentalization of TNF-related apoptosis-inducing ligand (TRAIL) death receptor functions: emerging role of nuclear TRAIL-R2

Cell line / cells;origin

Cell compartment a

TRAIL-R

Proposed function

Reference

HCT116;

Cytoplasm

1

ND

16

colorectal carcinoma

Nucleus

1

ND

 
 

Cytoplasm

2

ND

 
 

Nucleus

2

Inhibition of let-7 maturation

 

MDA-MB-231;

Cytoplasm

1

ND

16

breast cancer

Nucleus

1

ND

 
 

Cytoplasm

2

ND

 
 

Nucleus

2

Inhibition of let-7 maturation

 

Panc1, BxPC3,

Cytoplasm

1

ND

16

Panc89, Colo357, A818-6;

Nucleus

1

ND

 

pancreatic cancer

    
 

Cytoplasm

2

ND

 
 

Nucleus

2

Inhibition of let-7 maturation

 

AU565, BT474, HCC1428,

Cytoplasm

1, 2

Correlation with resistance to TRAIL-

59

MDA-MB-453, MDA-MB-361; breast cancer

Nucleus

 

mediated apoptosis

 

BT474, AU565; breast cancer

Autophagosomes

1, 2

Resistance to TRAIL-mediated apoptosis

66

Placental primary cytotrophoblast cells

Nucleus

2

Correlates with apoptosis resistance

67

Huh-7; hepatocellular carcinoma

Lysosomes

2

TRAIL-R2-dependent lysosomal permeabilization promotes apoptosis

38

HepG2; hepatocellular carcinoma

Nucleus

2

Resistance to TRAIL-mediated apoptosis

69

HeLa; cervix carcinoma

Nucleus

2

Resistance to TRAIL-mediated apoptosis

69

Mel-FH; melanoma

Nucleus

1

ND

65

  1. Abbreviation: ND, not determined
  2. Only intracellular compartments are listed. In many cases, TRAIL death receptors were also observed at the plasma membrane. ‘Cytoplasm’ may comprise all intracellular localizations except the nucleus, as immunodetection normally does not discriminate between membranous cytoplasmic compartments and cytosol