Abstract: Lonidamine derivatives can be useful in methods of treating, inhibiting, and/or preventing polycystic kidney disease (PKD). Accordingly, lonidamine derivatives can be administered in a therapeutically effective amount for inhibiting, and/or preventing polycystic kidney disease (PKD) in the subject. This can include administering a therapeutically effective amount of the lonidamine derivatives for inhibiting CFTR and/or Hsp90 or biological pathway thereof. Also, the method can include administering the lonidamine derivatives in a therapeutically effective amount for inhibiting ErbB2, Src, Raf-1, B-Raf, MEK, Cdk4, NKCC1, or combinations thereof. For example, the therapeutically effective amount of the lonidamine derivatives can be configured so as to provide a concentration in or adjacent to a kidney cell of about 0.25 uM or more or less.

Abstract: Novobiocin analogues are useful in methods of treating, inhibiting, and/or preventing cyst formation in autosomal dominant polycystic kidney disease (ADPKD) in a subject. The disclosure provides methods of treating ADPKD comprising administering a therapeutically effective amount of a coumarin-3-carboxamide novobiocin analogue. Accordingly, the method can include administering a novobiocin analogue in a therapeutically effective amount for reducing levels of mTOR pathway phosphoproteins P-mTOR, P-Akt and P-S6K, or combinations thereof. Further, the method can include administering a novobiocin analogue in a therapeutically effective amount for reducing levels of Hsp-90 client proteins CFTR, ErbB2, c-Raf and Cdk4, or combinations thereof.

Abstract: Lonidamine derivatives can be useful in methods of treating, inhibiting, and/or preventing polycystic kidney disease (PKD). Accordingly, lonidamine derivatives can be administered in a therapeutically effective amount for inhibiting, and/or preventing polycystic kidney disease (PKD) in the subject. This can include administering a therapeutically effective amount of the lonidamine derivatives for inhibiting CFTR and/or Hsp90 or biological pathway thereof. Also, the method can include administering the lonidamine derivatives in a therapeutically effective amount for inhibiting ErbB2, Src, Raf-1, B-Raf, MEK, Cdk4, NKCC1, or combinations thereof. For example, the therapeutically effective amount of the lonidamine derivatives can be configured so as to provide a concentration in or adjacent to a kidney cell of about 0.25 uM or more or less.

Abstract: The present invention provides novel DNA sequences encoding a mouse phosphotriesterase-related protein having the sequence shown in SEQ ID NO. 12. Also provided is a phosphotriesterase-related protein having the sequence shown in SEQ ID NO. 12 and a pharmaceutical composition, comprising the protein of the present invention and a pharmaceutically acceptable carrier.