Table 2.

PCR and sequence analysis of V gene rearrangements of single B cells from individual follicles of three follicular lymphomas

SamplesV geneNo. of cells positive/cells analyzedClonal rearrangements*
TotalPer follicle
Case      
 1 FL cells VH 33/150 1:12/50 30 × VH3-23  
    2:14/50 2 × VH3-23 
    3:7/50 1 × VH3-11 
 FL cells Vκ 27/150 1:7/50 25 × VκB3 
    2:12/50 2 × VκB3 
    3:8/50  
 2 FL cells VH 71/150 1:30/50 71 × VH3-23 
    2:23/50  
    3:18/50  
 FL cells Vκ 55/150 1:20/50 55 × VκL2 
    2:15/50  
    3:20/50  
 3 FL cells VH 37/150 1:8/50 37 × VH3-49 
    2:12/50  
    3:17/49  
 FL cells Vλ 30/150 1:8/50 30 × Vλ3r 
    2:10/50  
    3:12/50  
Controls      
 1 T cells VH 0/60   
  Vκ 0/60   
 buffer VH 0/60   
  Vκ 0/60   
 2 T cells VH 3/60   
  Vκ 4/60   
 buffer VH 1/60   
  Vκ 0/60   
 3 T cells VH 1/60   
  Vλ 1/60   
 buffer VH 1/60   
  Vλ 1/60   
SamplesV geneNo. of cells positive/cells analyzedClonal rearrangements*
TotalPer follicle
Case      
 1 FL cells VH 33/150 1:12/50 30 × VH3-23  
    2:14/50 2 × VH3-23 
    3:7/50 1 × VH3-11 
 FL cells Vκ 27/150 1:7/50 25 × VκB3 
    2:12/50 2 × VκB3 
    3:8/50  
 2 FL cells VH 71/150 1:30/50 71 × VH3-23 
    2:23/50  
    3:18/50  
 FL cells Vκ 55/150 1:20/50 55 × VκL2 
    2:15/50  
    3:20/50  
 3 FL cells VH 37/150 1:8/50 37 × VH3-49 
    2:12/50  
    3:17/49  
 FL cells Vλ 30/150 1:8/50 30 × Vλ3r 
    2:10/50  
    3:12/50  
Controls      
 1 T cells VH 0/60   
  Vκ 0/60   
 buffer VH 0/60   
  Vκ 0/60   
 2 T cells VH 3/60   
  Vκ 4/60   
 buffer VH 1/60   
  Vκ 0/60   
 3 T cells VH 1/60   
  Vλ 1/60   
 buffer VH 1/60   
  Vλ 1/60   
*

V genes unrelated to the tumor clones are shown in italics. There were 2 cells that harbored a VH3-23 and VκB3 rearrangement that were clonally related to each other.

Summary of controls with samples of buffer covering the sections. T cells were micromanipulated from adjacent tissue sections of the same cases as additional negative controls.

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