Persistence of long-lived plasma cells and humoral immunity in individuals responding to CD19-directed CAR T-cell therapy

Author:

Bhoj Vijay G.1ORCID,Arhontoulis Dimitrios1,Wertheim Gerald2,Capobianchi James3,Callahan Colleen A.4,Ellebrecht Christoph T.5,Obstfeld Amrom E.1,Lacey Simon F.1,Melenhorst Jan J.1,Nazimuddin Farzana1,Hwang Wei-Ting6,Maude Shannon L.4,Wasik Mariusz A.1ORCID,Bagg Adam1,Schuster Stephen3,Feldman Michael D.1,Porter David L.3,Grupp Stephen A.4,June Carl H.1,Milone Michael C.1ORCID

Affiliation:

1. Department of Pathology and Laboratory Medicine, Perelman School of Medicine of the University of Pennsylvania, Philadelphia, PA;

2. Department of Pathology and Laboratory Medicine, Children’s Hospital of Philadelphia, Philadelphia, PA;

3. Department of Medicine, Perelman School of Medicine of the University of Pennsylvania, Philadelphia, PA;

4. Division of Bone Marrow Transplantation, Children’s Hospital of Philadelphia, Philadelphia, PA; and

5. Department of Dermatology and

6. Department of Biostatistics and Epidemiology, University of Pennsylvania, Philadelphia, PA

Abstract

Key PointsCD19-targeted T-cell immunotherapy reveals that a population of PCs lacking CD19 expression survives long-term, independent of B cells. Preexisting humoral immunity to vaccine-related antigens can persist in patients despite marked B-cell aplasia after CTL019 immunotherapy.

Publisher

American Society of Hematology

Subject

Cell Biology,Hematology,Immunology,Biochemistry

Reference45 articles.

1. Duration of humoral immunity to common viral and vaccine antigens.;Amanna;N Engl J Med,2007

2. An autoradiographic study of the stability of plasma cell ribonucleic acid in rats.;Miller;J Immunol,1964

3. Lifetime of plasma cells in the bone marrow.;Manz;Nature,1997

4. Humoral immunity due to long-lived plasma cells.;Slifka;Immunity,1998

5. Maintenance of long-lived plasma cells and serological memory despite mature and memory B cell depletion during CD20 immunotherapy in mice.;DiLillo;J Immunol,2008

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