Exhibit 23.1

KPMG LLP

Two Financial Center

60 South Street

Boston, MA 02111

Consent of Independent Registered Public Accounting Firm

We consent to the use of our report dated March 23, 2023, with respect to the consolidated financial statements of Magenta Therapeutics, Inc., incorporated herein by reference.

/s/ KPMG LLP

Boston, Massachusetts

October 3, 2023

KPMG LLP, a Delaware limited liability partnership and a member firm of

the KPMG global organization of independent member firms affiliated with

KPMG International Limited, a private English company limited by guarantee.