4.7 Article

BAD-LAMP is a novel biomarker of nonactivated human plasmacytoid dendritic cells

Journal

BLOOD
Volume 118, Issue 3, Pages 609-617

Publisher

AMER SOC HEMATOLOGY
DOI: 10.1182/blood-2010-11-319699

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Funding

  1. Agence Nationale de la Recherche (BAD-LAMP layers)
  2. La Ligue Nationale Contre le Cancer
  3. Agence Nationale de Recherche sur le Sida
  4. Ministere de l'enseignement superieur et de la recherche (MESR)
  5. Region Provence-Alpes-Cote d'Azur (PACA)
  6. Ligue Nationale Contre le Cancer (LNCC)

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The brain and dendritic cell (BAD)associated lysosome-associated membrane protein (LAMP)-like molecule (BAD-LAMP, c20orf103, UNC-46) is a newly identified member of the family of LAMPs. BAD-LAMP expression in the mouse is confined to neurons. We demonstrate here that in humans, BAD-LAMP can specifically be found in the type I IFN-producing plasmacytoid dendritic cells (pDCs). Human BAD-LAMP is localized in the endoplasmic reticulum-Golgi intermediate compartment (ERGIC) of freshly isolated CD123(+) pDCs and is rapidly lost upon activation by unmethylated cytosine-phosphate-guanine (CpG) oligonucleotides. The restricted pattern of BAD-LAMP expression allows for the rapid identification of normal and leukemic human pDCs in tissues and blood. (Blood. 2011;118(3):609-617)

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