Clinical spectrum in patients diagnosed with FERMT3 mutations
Family* . | Hematology . | Detachment of umbilical cord . | Recurrent infection . | Wound-healing defect . | Bleeding . | HSCT . | Death . | Mutation CALDAGGEF1 . | Mutation FERMT3 . |
---|---|---|---|---|---|---|---|---|---|
1 | TF-dependent anemia (> 7 y) | Late | + | ++ | +++ | + | Post-HSCT | Yes† | Arg509X |
2 | − | Normal | + | − | +++ | − | − | Yes | Arg509X |
3 | − | Normal | +++ | + | +++ | + | Post-HSCT | Yes | Arg509X |
4 (1) | − | Late | +++ | ++ | ++ | − | Infection | Yes | Arg509X |
4 (2) | − | Normal | + | + | + | − | Hemorrhage | Yes | Arg509X |
5 | − | Late | + | − | ++ | + | − | Yes | Arg509X |
6 (1) | Anemia (early, transient) | Normal | + | + | + | − | − | Yes | Arg509X |
6 (2) | − | Normal | + | + | + | − | − | Yes | Arg509X |
7 | − | Late | − | − | + | − | − | Yes | Arg509X |
8 | − | Normal | − | − | ++ | − | − | No | Arg573X |
9 | − | Normal | ++ | ++ | +++ | + | Post-HSCT | No | Trp229X |
Family* . | Hematology . | Detachment of umbilical cord . | Recurrent infection . | Wound-healing defect . | Bleeding . | HSCT . | Death . | Mutation CALDAGGEF1 . | Mutation FERMT3 . |
---|---|---|---|---|---|---|---|---|---|
1 | TF-dependent anemia (> 7 y) | Late | + | ++ | +++ | + | Post-HSCT | Yes† | Arg509X |
2 | − | Normal | + | − | +++ | − | − | Yes | Arg509X |
3 | − | Normal | +++ | + | +++ | + | Post-HSCT | Yes | Arg509X |
4 (1) | − | Late | +++ | ++ | ++ | − | Infection | Yes | Arg509X |
4 (2) | − | Normal | + | + | + | − | Hemorrhage | Yes | Arg509X |
5 | − | Late | + | − | ++ | + | − | Yes | Arg509X |
6 (1) | Anemia (early, transient) | Normal | + | + | + | − | − | Yes | Arg509X |
6 (2) | − | Normal | + | + | + | − | − | Yes | Arg509X |
7 | − | Late | − | − | + | − | − | Yes | Arg509X |
8 | − | Normal | − | − | ++ | − | − | No | Arg573X |
9 | − | Normal | ++ | ++ | +++ | + | Post-HSCT | No | Trp229X |
TF indicates transfusion (of erythrocytes); HSCT, hematopoietic stem cell transplantation; and +, mild; ++, moderate; +++, severe; −, absent or negative.
Families 1 through 7 have been described in more detail by Kuijpers et al.2
Intronic sequence variant c.1592-3C>A linked to an intronic deletion in the NRXN2 gene.