Poor harvest of peripheral blood stem cell in donors with microcytic red blood cells

Tso Fu Wang, Shu Huey Chen, Shang Hsien Yang, Yu Chieh Su, Sung Chao Chu, Dian Kun Li

Research output: Contribution to journalArticle

7 Citations (Scopus)

Abstract

BACKGROUND: The outcome of peripheral blood stem cell (PBSC) harvest depends on mobilization and leukapheresis. Some poor harvests might not be directly related to poor mobilizations. STUDY DESIGN AND METHODS: We retrospectively analyzed the results of 793 consecutive healthy donors who underwent PBSC donation to evaluate the impact of low mean corpuscular volume (MCV) of red blood cells on the outcomes of hematopoietic stem cell mobilization and leukapheresis. RESULTS: The circulating CD34+ cells in peripheral blood after five doses of granulocyte-colony-stimulating factor injection were similar in donors with low MCV and those with normal MCV (68.0 × 106/L vs. 69.2 × 106/L, p = 0.38). The procedural settings were not different between the two groups. However, the apheresis outcome of donors with low MCV was significantly lower in total CD34+ cells, cell dose, apheresis yield, and collection efficiency than those with normal MCV (277.6 × 106 vs. 455.0 × 106; 4.9 × 106/kg vs. 8.2 × 106/kg; 16.9 × 106/L vs. 27.3 × 106/L; 0.285 vs. 0.388; all p <0.0001). Similar results were noticed in subgroup analysis using the severity of microcytosis and Mentzer index for the donors with MCV of less than 80 fL. The collection efficiency was significantly correlated with the MCV (r = 0.30, p <0.0001). CONCLUSION: Low MCV was associated with poor apheresis outcomes in PBSC donors. This effect is not related to poor mobilization of CD34+ cells into the peripheral blood. Further studies to elucidate the detailed mechanism and develop strategy to avoid poor harvest are necessary.

Original languageEnglish
Pages (from-to)91-95
Number of pages5
JournalTransfusion
Volume53
Issue number1
DOIs
Publication statusPublished - Jan 2013
Externally publishedYes

Fingerprint

Erythrocyte Indices
Erythrocytes
Blood Component Removal
Leukapheresis
Hematopoietic Stem Cell Mobilization
Peripheral Blood Stem Cells
Granulocyte Colony-Stimulating Factor
Injections

ASJC Scopus subject areas

  • Hematology
  • Immunology
  • Immunology and Allergy

Cite this

Poor harvest of peripheral blood stem cell in donors with microcytic red blood cells. / Wang, Tso Fu; Chen, Shu Huey; Yang, Shang Hsien; Su, Yu Chieh; Chu, Sung Chao; Li, Dian Kun.

In: Transfusion, Vol. 53, No. 1, 01.2013, p. 91-95.

Research output: Contribution to journalArticle

Wang, Tso Fu ; Chen, Shu Huey ; Yang, Shang Hsien ; Su, Yu Chieh ; Chu, Sung Chao ; Li, Dian Kun. / Poor harvest of peripheral blood stem cell in donors with microcytic red blood cells. In: Transfusion. 2013 ; Vol. 53, No. 1. pp. 91-95.
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abstract = "BACKGROUND: The outcome of peripheral blood stem cell (PBSC) harvest depends on mobilization and leukapheresis. Some poor harvests might not be directly related to poor mobilizations. STUDY DESIGN AND METHODS: We retrospectively analyzed the results of 793 consecutive healthy donors who underwent PBSC donation to evaluate the impact of low mean corpuscular volume (MCV) of red blood cells on the outcomes of hematopoietic stem cell mobilization and leukapheresis. RESULTS: The circulating CD34+ cells in peripheral blood after five doses of granulocyte-colony-stimulating factor injection were similar in donors with low MCV and those with normal MCV (68.0 × 106/L vs. 69.2 × 106/L, p = 0.38). The procedural settings were not different between the two groups. However, the apheresis outcome of donors with low MCV was significantly lower in total CD34+ cells, cell dose, apheresis yield, and collection efficiency than those with normal MCV (277.6 × 106 vs. 455.0 × 106; 4.9 × 106/kg vs. 8.2 × 106/kg; 16.9 × 106/L vs. 27.3 × 106/L; 0.285 vs. 0.388; all p <0.0001). Similar results were noticed in subgroup analysis using the severity of microcytosis and Mentzer index for the donors with MCV of less than 80 fL. The collection efficiency was significantly correlated with the MCV (r = 0.30, p <0.0001). CONCLUSION: Low MCV was associated with poor apheresis outcomes in PBSC donors. This effect is not related to poor mobilization of CD34+ cells into the peripheral blood. Further studies to elucidate the detailed mechanism and develop strategy to avoid poor harvest are necessary.",
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