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Biology

CD4 + T-linfocitos capturar usando un chip de microfluidos desechables para el VIH

Published: October 1, 2007 doi: 10.3791/315

Summary

Protocol

  1. Prepare canal de microfluidos con anti-CD4 + biotinlayted superficie.
  2. Inyectar 10 ml de muestra de sangre a 5 ml / min en el canal de microfluidos con bomba de jeringa.
  3. Expulsar la sangre a 20 ml / min durante 20 minutos con PBS.
  4. Inyectar la solución diluida FACS lisis (diluido al 10% de la solución madre con PBS) a 5ul/min durante 15 minutos.
  5. Incubar durante 15 min.
  6. Inyectar primaria CD3 + solución de anticuerpos (diluido al 10% de la solución madre con PBS) a 5 ml / min durante 20 min.
  7. Incubar durante 2 horas.
  8. Enjuague con canal PBS a 5 ml / min durante 15 min.
  9. Inyectar 20% AF488 anticuerpos CD4 +, 0,2% de solución madre DAPI, y el 10% CD3 + secundaria de anticuerpos en 5 ml / min durante 20 minutos a la vez.
  10. Incubar durante 20 min.
  11. Limpiar los canales de PBS a 5 ml / min durante 15 min.
  12. Recuento de células bajo microscopio de fluorescencia:
    1. Blanco (óptico) - Negro y blanco: la célula y el polvo
    2. UV (DAPI) - Azul: células sólo
    3. Azul (CD4 +) - Verde: los linfocitos T y monocitos
    4. Verde (CD3 +) - Red: los linfocitos T sólo

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Materials

Name Type Company Catalog Number Comments
PDMS microchannel Fabricated by SU-8 mold
Blood Donated blood from normal human subject. Mass General Hospital, 10 X high density WBC or Brigham and Women’s Hospital.
PBS Buffer Invitrogen 14190 1x Dulbecco’s Phosphated Buffered Saline.
FACS lysing solution BD Biosciences 349202 Diluted to 10% from stock solution with PBS.
Anti-CD4+ biotinlayted Ab Beckman Coulter Inc. IM0704 Surface prepared with Anti-CD4+ biotinlayted Ab, diluted to 10% from stock solution with PBS/BSA after mixing with 0.2mg stock and 1ml deionized water.
goat anti-hCD3delta pAB Santa Cruz Biotechnology, Inc. sc-1128 Diluted to 10% from stock solution with PBS
rabbit anti-goat IgG PE Santa Cruz Biotechnology, Inc. sc-3755 Secondary Ab fro anti-CD3 Ab, diluted to 10% from stock solution with PBS
anti-human CD4+ BD Biosciences 557695 Alexa Fluor 488 labeled, diluted to 20% from stock solution with PBS.
DAPI Invitrogen D1306 4’,6-dianidino-2-phenylindole, dihydrochloride solution, diluted to 0.2% from stock solution with PBS.

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Tags

Biología Celular número 8 de microfluidos la sangre el diagnóstico la bioingeniería el VIH la investigación traslacional
CD4 + T-linfocitos capturar usando un chip de microfluidos desechables para el VIH
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Cite this Article

Moon, S. J., Lin, R., Demirci, U.More

Moon, S. J., Lin, R., Demirci, U. CD4+ T-Lymphocyte Capture Using a Disposable Microfluidic Chip for HIV. J. Vis. Exp. (8), e315, doi:10.3791/315 (2007).

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