Shouldn't the phrase "commit to" be followed by a present participle or a noun? I wonder whether the word "differentiate" is wrong in its form.
These studies provide further insights into how hematopoietic progenitors commit to differentiate into basophils or mast cells.
Source: Science E-cadherin is regulated by GATA-2 and marks the early commitment of mouse hematopoietic progenitors to the basophil and mast cell fates
As this NGram graph shows, commit to only started being used in this way in about 1980. to is actually a preposition, so it requires a noun, however it does look like an infinitive marker, and there was a significant peak in usage followed by a bare infinitive in about 2000. Since then, it seems to be more normal to follow it by a noun or by a gerund- which is actually a noun form of a verb. The examples in the Cambridge dictionary only include noun and gerund forms.
From a theoretical perspective, I think that you are right and this sentence should use a gerund:
These studies provide further insights into how hematopoietic progenitors commit to differentiating into basophils or mast cells.
The bare infinitive does, however, still represent about a third of actual usages in all of the examples that I have checked.
