28.02.2013 Views

autologous blood and marrow transplantation - Blog Science ...

autologous blood and marrow transplantation - Blog Science ...

autologous blood and marrow transplantation - Blog Science ...

SHOW MORE
SHOW LESS

Create successful ePaper yourself

Turn your PDF publications into a flip-book with our unique Google optimized e-Paper software.

Kvalheim et al. 249<br />

Table 1. Immunocytochemical detection of breast cancer cells in bone <strong>marrow</strong><br />

Marker Patients (n) Detection ratio (LN+:LN-) Prognostic value<br />

EMA13 350 33:19% +<br />

2E1112 727 59:31% +<br />

CK-214 95 11.9:7.5% ND<br />

C26,T16,AE115 51 41:27% +<br />

AE1,AE35 124 29%:— ND<br />

EMA, epithelial membrane antigen; 2E11, breast mucin antigen; CK-2,CK-8,18,19AE1AE2<br />

mAbs against different cytokeratin antigens; C26, T16, mAbs reacting with distinct epith<br />

specific antigens; ND, not determined.<br />

granulocyte colony-stimulating factor (G-CSF) (filgrastim 5 ug/kg; Amgen/Roche)<br />

or three cycles of FEC plus high-dose therapy followed by stem cell support.<br />

Mobilization <strong>and</strong> collection of PBPC was done by combining the third cycle of FEC<br />

plus G-CSF. Three days after the end of chemotherapy treatment, the patients were<br />

given daily s.c. G-CSF (filgrastim 5 ug/kg). When a peak of CD34-positive cells<br />

appeared in the <strong>blood</strong>, usually at day 11 to 12 after initiating the chemotherapy,<br />

leukapheresis was performed with a CS 3000 Fenwal Cell Separator with a flow rate<br />

of 70 mL/min. Ten liters of <strong>blood</strong> were processed. CD34 +<br />

cell numbers were<br />

calculated, <strong>and</strong> the cells were frozen until use. CD34 +<br />

cell enrichment was<br />

performed in 30 patients using the ISOLEX 300 procedure as reported previously. 17<br />

The mean purity of CD34 +<br />

cells after positive selection was 98% (91.5-99.7%) with<br />

a mean yield of 48 (35—81). High-dose chemotherapy for breast cancer patients<br />

consisted of daily administration for 4 days with cyclophosphamide 1.5 g/m 2<br />

,<br />

carboplatin 200 mg/m 2<br />

, thiotepa 125 mg/m 2<br />

, <strong>and</strong> uromitexan 15 mg/kg every 4 h.<br />

Three days after finishing the chemotherapy, the cells were reinfused. From day 2<br />

after reinfusion of PBPC or CD34 +<br />

cells, G-CSF (filgrastim 5 ug/kg s.c.) was<br />

administered daily until reconstitution. After high-dose therapy, all patients were<br />

given irradiation to the chest wall plus tamoxifen 20 mg/d for 5 years.<br />

Immunocvtochemistry<br />

Sensitive immunocytochemical methods have been developed using tumorassociated<br />

mAbs <strong>and</strong> alkaline phosphatase anti-alkaline phosphatase (APAAP)staining<br />

techniques to detect occult micrometastatic tumor cells in <strong>blood</strong> <strong>and</strong> bone<br />

<strong>marrow</strong>. In most reports, cytospins containing a total number of 0.5-1 X10 5<br />

mononuclear bone <strong>marrow</strong> cells were tested. Recently, a new cytocentrifuge<br />

method has been developed making it possible to test 0.5 X10 6<br />

cells on each slide. 11<br />

A bilateral bone <strong>marrow</strong> aspiration from posterior iliac crest <strong>and</strong> <strong>blood</strong> were taken<br />

before <strong>and</strong> 6-12 months after therapy from 124 patients entering the r<strong>and</strong>omized

Hooray! Your file is uploaded and ready to be published.

Saved successfully!

Ooh no, something went wrong!