Figure 4: Keratin 9 in Alzheimer’s disease pathology.
From: Rationalising the role of Keratin 9 as a biomarker for Alzheimer’s disease

The diagram illustrates how Keratin 9 may interact with some of the major known factors in Alzheimer’s disease including those pathways which implicate ApoE, APP, Clusterin and Tau. Dotted lines indicate unknown mechanisms.