IP Library Granted Patent US 10,774,343
Granted Patent B2
US 10,774,343 · App. 15/306,724 · Granted Sep 15, 2020

MND promoter chimeric antigen receptors

Inventors: Richard Morgan (Center Harbor, NH); Kevin Friedman (Medford, MA); Byoung Ryu (Lexington, MA)
Assignee: bluebird bio, Inc.
C12N15/86A61K39/0011A61K39/00115A61K39/00117A61K39/00118A61K39/001104A61K39/001106A61K39/001109A61K39/001112A61K39/001113A61K39/001119A61K39/001122A61K39/001124A61K39/001128A61K39/001129A61K39/001138A61K39/001166A61K39/001168A61K39/001171A61K39/001174A61K39/001182A61K39/001184A61K39/001186A61K39/001188A61K39/001189A61K39/001193A61K39/001195C07K14/7051C07K14/70517C07K14/70578C07K16/2803C07K16/30C12N5/0636C12N7/00A61K48/00A61K2039/505A61K2039/5158C07K2317/622C07K2319/00C07K2319/02C07K2319/03C12N2740/15043
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Quick Facts
Patent No.
US 10,774,343
App. No.
15/306,724
Granted
Sep 15, 2020
Kind
B2
Abstract

Vector compositions comprising a myeloproliferative sarcoma virus enhancer, negative control region deleted, dl587rev primer-binding site substituted (MND) promoter operably linked to a chimeric antigen receptor (CAR) are provided.

Claims (26)

1. A lentiviral vector comprising a polynucleotide comprising a myeloproliferative sarcoma virus enhancer, negative control region deleted, dl587rev primer-binding site substituted (MND) promoter operably linked to a nucleic acid encoding a chimeric antigen receptor (CAR), wherein the CAR comprises:

(a) a signal peptide;

(b) an scFv that binds B cell maturation antigen (BCMA);

(c) a CD8α hinge domain as set forth in SEQ ID NO: 28;

(d) a CD8α transmembrane domain;

(e) a CD137 co-stimulatory signaling domain; and

a CD3ζ primary signaling domain.

2. The lentiviral vector of claim 1 , wherein lentiviral vector selected from the group consisting of: human immunodeficiency virus (HIV); visna-maedi virus (VMV) virus; caprine arthritis-encephalitis virus (CAEV); equine infectious anemia virus (EIAV); feline immunodeficiency virus (FIV); bovine immune deficiency virus (BIV); and simian immunodeficiency virus (SIV).

3. The lentiviral vector of claim 1 , comprising a left (5′) retroviral LTR, a Psi (Ψ) packaging signal, a central polypurine tract/DNA flap (cPPT/FLAP), a retroviral export element; the MND promoter operably linked to the CAR of claim 1 ; and a right (3′) retroviral LTR.

4. The lentiviral vector of claim 3 , further comprising:

a) a heterologous polyadenylation sequence;

b) a heterologous polyadenylation sequence that is a bovine growth hormone polyadenylation or signal rabbit β-globin polyadenylation sequence; or

c) a hepatitis B virus posttranscriptional regulatory element (HPRE) or woodchuck post-transcriptional regulatory element (WPRE).

5. The lentiviral vector of claim 3 , wherein:

a) the promoter of the 5′ LTR is replaced with a heterologous promoter;

b) the promoter of the 5′ LTR is replaced with a heterologous promoter selected from the group consisting of: a cytomegalovirus (CMV) promoter, a Rous Sarcoma Virus (RSV) promoter, or a Simian Virus 40 (SV40) promoter.

6. The lentiviral vector of claim 3 , wherein:

a) the 5′ LTR or 3′ LTR is a lentivirus LTR;

b) the 3′ LTR comprises one or more modifications;

c) the 3′ LTR comprises one or more deletions;

d) the 3′ LTR is a self-inactivating (SIN) LTR.

7. An isolated immune effector cell comprising the lentiviral vector of claim 1 .

8. The immune effector cell of claim 7 , wherein the immune effector cell is a T lymphocyte.

9. A composition comprising the immune effector cell of claim 7 and a physiologically acceptable excipient.

10. A composition comprising the immune effector cell of claim 8 and a physiologically acceptable excipient.

11. A method of making an immune effector cell comprising isolating CD34+ cells from bone marrow, cord blood or mobilized peripheral blood from a subject, and introducing the lentiviral vector of claim 1 into the isolated CD34+ cells.

Assignments (2)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Sep 14, 2021
From: BLUEBIRD BIO, INC.
To: 2SEVENTY BIO, INC.
Reel/Frame 057683/0099 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Nov 14, 2017
From: MORGAN, RICHARD; FRIEDMAN, KEVIN; RYU, BYOUNG
To: BLUEBIRD BIO, INC.
Reel/Frame 044123/0565 →
Continuity (2)
Provisional Application 61984561 · Apr 25, 2014
Related Publication 20170051308A1 · Feb 23, 2017
Cited By (3)
US 12,291,722 US 12,540,141 US 12,644,099