Table 1. Appearance of Tryptase Cells... | American Society of Hematology

Table 1.

Appearance of Tryptase⁺ Cells and Chymase⁺ Cells in Culture With CD34⁺ Cord Blood Cells and SCF

Weeks in Culture	Tryptase⁺ Cells (%)	Chymase⁺ Cells (%)
1	7 ± 2	0
2	78 ± 4	0
3	96 ± 3	0
4	100	0
7	100	0
10	100	2 ± 1
14	100	8 ± 1
22	100	40 ± 3
32	100	91 ± 4
36	100	100
40	100	100
48	100	100
60	100	100

Weeks in Culture	Tryptase⁺ Cells (%)	Chymase⁺ Cells (%)
1	7 ± 2	0
2	78 ± 4	0
3	96 ± 3	0
4	100	0
7	100	0
10	100	2 ± 1
14	100	8 ± 1
22	100	40 ± 3
32	100	91 ± 4
36	100	100
40	100	100
48	100	100
60	100	100

The cultured cells shown in Fig 2A were processed for immunocytochemical staining with an MoAb against tryptase or chymase. The results shown are from one representative experiment of three. Similar results were obtained in the other two experiments. Values are expressed as the mean ± SD.

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