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USPTO Patent Application for Generating CD4 T Cells

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Published March 26th, 2026
Detected March 26th, 2026
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Summary

The USPTO has published a patent application (US20260083778A1) for methods of generating CD4 T cells from progenitor cells. The application, assigned to Boston Medical Center Corporation, describes a specific differentiation process for therapeutic use.

What changed

This document is a publication of a United States Patent Application (US20260083778A1) filed by Boston Medical Center Corporation. The application details methods for generating specific types of T cells (CD4+CD8− single-positive T cells) from progenitor cells using a defined process involving interleukin-7 (IL-7) and an anti-CD3 agent, while excluding a Notch ligand and an anti-CD28 agent. The described cells and methods are intended for therapeutic applications.

As this is a patent application publication, it does not impose direct compliance obligations on regulated entities. However, it signals potential future developments in cell therapy and immunotherapy. Companies involved in biotechnology, pharmaceutical research, and cell-based therapeutics should monitor patent filings in this area for insights into emerging technologies and potential intellectual property landscapes. No immediate actions or deadlines are associated with this publication.

Source document (simplified)

← USPTO Patent Applications

GENERATION OF CD4 T CELLS

Application US20260083778A1 Kind: A1 Mar 26, 2026

Assignee

BOSTON MEDICAL CENTER CORPORATION

Inventors

Gustavo MOSTOSLAVSKY, Julian AMIRAULT

Abstract

The technology described herein is directed to methods of generating CD4+CD8− single-positive T cells from CD4+CD8+ double positive T progenitor cells using differentiation in the presence of interleukin-7 (IL-7) and an anti-CD3 agent and in absence of Notch ligand and an anti-CD28 agent. Also described herein are CD4+CD8− single-positive T cells made by the methods described herein, which can be used for therapeutic applications.

CPC Classifications

A61K 35/17 A61K 40/11 A61K 40/31 A61K 40/421 A61P 37/04 C07K 14/70514 C12N 5/0018 C12N 5/0636 C12N 2501/155 C12N 2501/165 C12N 2501/2302 C12N 2501/2307 C12N 2501/51 C12N 2501/515 C12N 2501/727 C12N 2506/1369 C12N 2510/00 C12N 2533/52

Filing Date

2025-09-19

Application No.

19334256

View original document →

Named provisions

GENERATION OF CD4 T CELLS

Classification

Agency
USPTO
Published
March 26th, 2026
Instrument
Notice
Legal weight
Non-binding
Stage
Final
Change scope
Minor
Document ID
US20260083778A1

Who this affects

Applies to
Drug manufacturers Healthcare providers Medical device makers
Industry sector
3254 Pharmaceutical Manufacturing 3345 Medical Device Manufacturing
Activity scope
Cell Therapy Development
Geographic scope
United States US

Taxonomy

Primary area
Healthcare
Operational domain
R&D
Topics
Biotechnology Medical Research

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