Table 3 Molecular characteristics of HPV DNA+ L-SCC patients

From: Biological evidence for a causal role of HPV16 in a small fraction of laryngeal squamous cell carcinoma

Patient number

Tissue biopsy

HPV DNA

HPV16 DNA copies/cell

Final HPV DNA and VL

HPV RNA

p16 high

pRb low

CyD1 low

p53 low

HPV-driven L-SCC

1

FFPE1

16

6769

16 H

16

+

+

+

+

+

 

FFPE2

16

Invalid

       
 

DFT

16

227

       

2

FFPE1

16

15

16 H

16

+

+

+

+

 

FFPE2

16

18

       
 

DFT

         

3

FFPE1

Invalid

Invalid

16 L

16

+

+

+

+

+

 

FFPE2

Invalid

Invalid

       
 

DFT

16

<0.001

       

4

FFPE1

 

16 L

+

+

 

FFPE2

16

0.07

       
 

DFT

16

0.004

       

5

FFPE1

Invalid

0

16 L

+

+

 

FFPE2

16

0

       
 

DFT

16

0

       

6

FFPE1

16

0

16 L

NA

NA

NA

NA

 

FFPE2

Invalid

0

       
 

DFT

16

<0.001

       

7

FFPE1

16

0

16 L

+

+

 

FFPE2

Invalid

0

       
 

DFT

16

<0.001

       

8

FFPE1

16

0

16 L

+

+

 

FFPE2

        
 

DFT

        

9

FFPE1

 

16 L

+

 

FFPE2

16

0

       
 

DFT

        

10

FFPE1

16

0

16 L

 

FFPE2

Invalid

0

       
 

DFT

        

11

FFPE1

Invalid

0

16 L

+

 

FFPE2

        
 

DFT

16

<0.001

       

12

FFPE1

 

16 L

+

+

 

FFPE2

        
 

DFT

16

0

       

13

FFPE1

 

16 L

16

 

FFPE2

        
 

DFT

16

0

       

14

FFPE1

 

16 L

+

+

+

 

FFPE2

        
 

DFT

16

0

       

15

FFPE1

 

16 L

+

+

 

FFPE2

        
 

DFT

16

<0.001

       

16

FFPE1

16

NQ

16 L

+

+

 

FFPE2

16

Invalid

       
 

DFT

         

17

FFPE1

16

0

16 L

+

 

FFPE2

        
 

DFT

         

18

FFPE1

16

0

16 L

+

 

FFPE2

        
 

DFT

         

19

FFPE1

16

<0.001

16 L

+

+

 

FFPE2

16

0

       
 

DFT

         

20

FFPE1

16

0

16 L

 

FFPE2

        
 

DFT

         

21

FFPE1

16

0

16 L

+

+

+

 

FFPE2

        
 

DFT

         

22

FFPE1

16

0

16 L

NA

NA

NA

NA

 

FFPE2

        
 

DFT

         

23

FFPE1

16 45

0.20

16 L

16

NA

NA

NA

NA

 

FFPE2

16

0

       
 

DFT

         

24

FFPE1

16 33

0

16 L

+

+

 

FFPE2

        
 

DFT

         

25

FFPE1

16

NQ

16 L, 33

 

FFPE2

33

        
 

DFT

         

26

FFPE1

45

 

45

NA

NA

NA

NA

 

FFPE2

        
 

DFT

         

27

FFPE1

56

 

56

Invalid

+

+

 

FFPE2

56

        
 

DFT

        

28

FFPE1

56

 

56

+

 

FFPE2

        
 

DFT

        

29

FFPE1

53

 

53

 

FFPE2

        
 

DFT

         

30

FFPE1

70

 

70

70

+

 

FFPE2

70

        
 

DFT

         

31

FFPE1

11

 

11

+

+

 

FFPE2

        
 

DFT

         

32

FFPE1

42

 

42

Invalid

+

 

FFPE2

Invalid

        
 

DFT

        
  1. Abbreviations: NQ=not quantifiable owing to β-globin-negative results in qPCR; NA=tested but not analysable; VL=viral load that can be high (H, 0.5 copies per cell) or low (L, <0.5 copies per cell); proteinhigh=high protein expression; proteinlow=low protein expression (see algorithm in Table 1).
  2. ‘–’ in HPV DNA column means HPV DNA-negative finding; invalid, HPV and β-globin DNA-negative, or HPV and ubiquitin C RNA-negative; ‘empty field’ indicates not available (e.g. DFT biopsy) or not tested (e.g. non-HPV16+ samples were not analysed with HPV16 qPCR). HPV-driven L-SCC are defined by HPV DNA+/RNA+/p16high/pRblow pattern in the tumour cells. For protein expression, ‘–’ in column means the expected protein expression for p16high, pRblow, CyD1low, and p53low was not found, or ‘+’, was found, respectively. The ‘Patient number’ in this table does not correspond to the ‘Patient number’ in the Supplementary Table S1.