The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Oct. 29, 2024

Filed:

Mar. 26, 2018
Applicants:

Inserm (Institute National DE LA Santé ET DE LA Recherche Médicale), Paris, FR;

Université Paris-sud, Orsay, FR;

Inventors:

Karl Balabanian, Clamart, FR;

Christelle Freitas, Clamart, FR;

Vincent Rondeau, Clamart, FR;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C12N 5/0789 (2010.01); C12N 5/00 (2006.01);
U.S. Cl.
CPC ...
C12N 5/0647 (2013.01); C12N 5/0018 (2013.01); C12N 2501/21 (2013.01); C12N 2501/2303 (2013.01); C12N 2501/2306 (2013.01); C12N 2501/2307 (2013.01); C12N 2501/26 (2013.01);
Abstract

The present invention relates to a method for preparing lymphoid progenitors. The inventors took advantage of their original and relevant Warts, Hypogammaglobulinemia, Infections and Myelokathexis (WHIM) Syndrome (WS) model and the access to blood samples from five WS patients to investigate the impact of CXCR4 desensitization on BM and extra-medullary (i.e. splenic) hematopoiesis and hematopoietic stem and progenitor cells (HSPCs) recirculation. They developed, for the first time, an original in vitro system permitting to selectively expand HSPCs to obtain lymphoid progenitors by using an original cocktail of cytokines. In particular, the present invention relates to an in vitro method for preparing lymphoid progenitors by culturing HSPCs in an appropriate culture medium comprising an effective amount of a cocktail of cytokines consisting in SCF, IL-3, IL-6, IL-7, Flt-3, and CXCL12.


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