Table 2.

Persistent Microchimerism in Peripheral Blood Mononuclear cell Subsets in Healthy Women and Women With Scleroderma

CD3 CD56/16 CD14 CD19
NL2  −  +  − + 
NL4  −  + +* +* 
NL44  + − +  * 
NL45  nd  nd  −  
NL47   + −  −  
NL52  +  − −  −  
NL56  −  * * + 
NL61 −  −  −  −  
NL67  +  +  +  
Sister SSc8   nd    
Sister SSc27  −   +  
SSc8  nd  −  −  
SSc11  −  + − −  
SSc20  −  −  + −  
SSc26  + * −  + 
SSc27  −  +* +  * 
SSc29   +  nd  
SSc32  +  −  −  
SSc4  −  +  −  −  
SSc33 −  −  −  
CD3 CD56/16 CD14 CD19
NL2  −  +  − + 
NL4  −  + +* +* 
NL44  + − +  * 
NL45  nd  nd  −  
NL47   + −  −  
NL52  +  − −  −  
NL56  −  * * + 
NL61 −  −  −  −  
NL67  +  +  +  
Sister SSc8   nd    
Sister SSc27  −   +  
SSc8  nd  −  −  
SSc11  −  + − −  
SSc20  −  −  + −  
SSc26  + * −  + 
SSc27  −  +* +  * 
SSc29   +  nd  
SSc32  +  −  −  
SSc4  −  +  −  −  
SSc33 −  −  −  

DNA extracted from 0.5 × 105 sorted cells was tested unless otherwise noted. The distribution of Y chromosome PCR-positive and -negative PBMC subsets for 18 women who previously gave birth to at least one son. Two patients (SSc33 and SSc4) had not given birth to a son, but had a history of prior pregnancy loss and/or blood transfusion. All women were positive for Y chromosome–specific DNA upon analysis of PBMC.

Abbreviation: nd = not done.

*

0.2 to less than 0.5 × 105 cells were tested.

Greater than 0.5 × 105 to less than 0.9 × 105 were tested.

Between 0.9 × 105 and 1.8 × 105 cells were tested.

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