HK2 and idiopathic pulmonary fibrosis: Expression of both the lactate transporter monocarboxylate transporter 1 (MCT1) and the key glycolytic protein hexokinase II (HKII) was increased in IPF MPCs in response to hypoxia (Supplemental Figure 1; supplemental material available online with this article; https://doi.org/10.1172/jci.insight.163820DS1).