Kun Ping Lu, MD, PhD

Beth Israel Deaconess Medical Center

Beth Israel Deaconess Medical Center
Phone: (617) 667-4143
Fax: (617) 667-0610


Kun Ping Lu, MD, PhD

Beth Israel Deaconess Medical Center


  • Professor, Medicine, Harvard Medical School
  • Associate Physician, Medicine, Beth Israel Deaconess Medical Center


Research Abstract

The laboratory is interested in elucidating molecular mechanisms of the cell cycle and telomere maintenance, as well as in determining how aberrations in these mechanisms leads to cancer and Alzheimer's disease. Phosphorylation of proteins on serines or threonines preceding a proline (pSer/Thr-Pro) is a major regulatory mechanism and its deregulation can lead to cancer and Alzheimer’s disease (AD). Although Ser/Thr phosphorylation is proposed to regulate protein function by inducing conformational changes, little is known about the conformational changes and their significance. Our identification of the peptidyl-prolyl isomerase (PPIase) Pin1 that specifically isomerizes only pSer/Thr-Pro bonds in certain proteins led us to identify a new signaling mechanism, whereby prolyl isomerization catalytically induces conformational changes after phosphorylation to regulate their function. Pin1 function is normally tightly regulated and its overexpression plays a pivotal role during oncogenesis. Furthermore, inhibition of Pin1 suppresses cell transformation in vitro and deletion of Pin1 in mice prevents oncogenesis induced by other oncogenes such as Ras, or Neu. Interestingly, Pin1 expression inversely correlates with the predicted neuronal vulnerability and actual neurofibrillary degeneration in AD. Moreover, Pin1 is the first gene whose knockout in mice causes progressive age-dependent neurodegeneration and tauopathies. These results open a new idea for understanding the pathogenesis of cancer and Alzheimer's disease and designing their therapies.

Telomeres are critical for maintaining genomic stability and allowing cells escaping from crisis, and their deregulation has been implicated in cancer and premature aging. We have identified the telomeric protein Pin2/TRF1 and its interacting proteins, PinX1-4. PinX1 is the first endogenous telomerase catalytic inhibitor and is a putative tumor suppressor. These studies should yield new insights into telomere maintenance, cell growth control and oncogenesis, and may lead to the development of new anticancer therapy.

Our future directions are to elucidate how protein phosphorylation regulates cell growth, how deregulation of Pin1 leads to cell transformation and Alzheimer’s disease, how telomerase and telomerase inhibitors are regulated, how deregulation of telomerase and telomerase inhibitors contributes to cancer and aging, and how to use our new insights into the pathogenesis of cancer and Alzheimer’s disease to design more effective therapies.


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  • Wei S, Kozono S, Kats L, Nechama M, Li W, Guarnerio J, Luo M, You MH, Yao Y, Kondo A, Hu H, Bozkurt G, Moerke NJ, Cao S, Reschke M, Chen CH, Rego EM, Lo-Coco F, Cantley LC, Lee TH, Wu H, Zhang Y, Pandolfi PP, Zhou XZ, Lu KP. Active Pin1 is a key target of all-trans retinoic acid in acute promyelocytic leukemia and breast cancer. Nat Med 2015; 21:457-66. PubMed
  • Luo ML, Gong C, Chen CH, Hu H, Huang P, Zheng M, Yao Y, Wei S, Wulf G, Lieberman J, Zhou XZ, Song E, Lu KP. The Rab2A GTPase Promotes Breast Cancer Stem Cells and Tumorigenesis via Erk Signaling Activation. Cell Rep 2015. PubMed
  • Luo ML, Gong C, Chen CH, Lee DY, Hu H, Huang P, Yao Y, Guo W, Reinhardt F, Wulf G, Lieberman J, Zhou XZ, Song E, Lu KP. Prolyl Isomerase Pin1 Acts Downstream of miR200c to Promote Cancer Stem-like Cell Traits in Breast Cancer. Cancer Res 2014. PubMed
  • Liu P, Begley M, Michowski W, Inuzuka H, Ginzberg M, Gao D, Tsou P, Gan W, Papa A, Kim BM, Wan L, Singh A, Zhai B, Yuan M, Wang Z, Gygi SP, Lee TH, Lu KP, Toker A, Pandolfi PP, Asara JM, Kirschner MW, Sicinski P, Cantley L, Wei W. Cell-cycle-regulated activation of Akt kinase by phosphorylation at its carboxyl terminus. Nature 2014; 508:541-5. PubMed
  • Jalouli M, Déry MA, Lafleur VN, Lamalice L, Zhou XZ, Lu KP, Richard DE. The prolyl isomerase Pin1 regulates hypoxia-inducible transcription factor (HIF) activity. Cell Signal 2014. PubMed
  • De S, Greenwood AI, Rogals MJ, Kovrigin EL, Lu KP, Nicholson LK. Complete Thermodynamic and Kinetic Characterization of the Isomer-Specific Interaction between Pin1-WW Domain and the Amyloid Precursor Protein Cytoplasmic Tail Phosphorylated at Thr668. Biochemistry 2012. PubMed
  • Nakamura K, Kosugi I, Lee DY, Hafner A, Sinclair DA, Ryo A, Lu KP. Prolyl isomerase Pin1 regulates neuronal differentiation via 硫-catenin. Mol Cell Biol 2012; 32:2966-78. PubMed
  • Min SH, Lau AW, Lee TH, Inuzuka H, Wei S, Huang P, Shaik S, Lee DY, Finn G, Balastik M, Chen CH, Luo M, Tron AE, Decaprio JA, Zhou XZ, Wei W, Lu KP. Negative regulation of the stability and tumor suppressor function of Fbw7 by the Pin1 prolyl isomerase. Mol Cell 2012; 46:771-83. PubMed
  • Luo T, Yu J, Nguyen J, Wang CR, Bristow RG, Jaffray DA, Zhou XZ, Lu KP, Lu QB. Electron transfer-based combination therapy of cisplatin with tetramethyl-p-phenylenediamine for ovarian, cervical, and lung cancers. Proc Natl Acad Sci U S A 2012; 109:10175-80. PubMed
  • Zhou XZ, Huang P, Shi R, Lee TH, Lu G, Zhang Z, Bronson R, Lu KP. The telomerase inhibitor PinX1 is a major haploinsufficient tumor suppressor essential for chromosome stability in mice. J Clin Invest 2011. PubMed
  • Soohoo CY, Shi R, Lee TH, Huang P, Lu KP, Zhou XZ. Telomerase inhibitor PinX1 provides a link between TRF1 and telomerase to prevent telomere elongation. J Biol Chem 2011; 286:3894-906. PubMed
  • Driver JA, Lu KP. Pin1: A New Genetic Link between Alzheimer's Disease, Cancer and Aging. 2010; 3:158-65. PubMed
  • Fan G,Fan Y,Gupta N,Matsuura I,Liu F,Zhou XZ,Lu KP,Gelinas C. Peptidyl-prolyl isomerase Pin1 markedly enhances the oncogenic activity of the rel proteins in the nuclear factor-kappaB family. Cancer Res 2009; 69:4589-97. PubMed
  • Ryo A,Wulf G,Lee TH,Lu KP. Pinning down HER2-ER crosstalk in SMRT regulation. Trends Biochem Sci 2009; 34:162-5. PubMed
  • Cole AR, Soutar MP, Rembutsu M, Van Aalten L, Hastie CJ, McLauchlan H, Peggie M, Balastik M, Lu KP, Sutherland C. Relative resistance of Cdk5-phosphorylated CRMP2 to dephosphorylation. J Biol Chem 2008; 283:18227-37. PubMed
  • Liao WL, Tsai HC, Wang HF, Chang J, Lu KM, Wu HL, Lee YC, Tsai TF, Takahashi H, Wagner M, Ghyselinck NB, Chambon P, Liu FC. Modular patterning of structure and function of the striatum by retinoid receptor signaling. Proc Natl Acad Sci U S A 2008; 105:6765-70. PubMed
  • Lu KH, Wu W, Dave B, Slomovitz BM, Burke TW, Munsell MF, Broaddus RR, Walker CL. Loss of tuberous sclerosis complex-2 function and activation of Mammalian target of rapamycin signaling in endometrial carcinoma. Clin Cancer Res 2008; 14:2543-50. PubMed
  • Lim J, Balastik M, Lee TH, Nakamura K, Liou YC, Sun A, Finn G, Pastorino L, Lee VM, Lu KP. Pin1 has opposite effects on wild-type and P301L tau stability and tauopathy. J Clin Invest 2008; 118:1877-1889. PubMed
  • Dehart WK, Gilliam AC, Lu KQ, Brell J. A rare case of melanoma recurring as subcutaneous metastatic melanoma with overlying ecchymoses. Arch Dermatol 2008; 144:561-2. PubMed
  • Lu HF, Chen YS, Yang JS, Chen JC, Lu KW, Chiu TH, Liu KC, Yeh CC, Chen GW, Lin HJ, Chung JG. Gypenosides induced G0/G1 arrest via inhibition of cyclin E and induction of apoptosis via activation of caspases-3 and -9 in human lung cancer A-549 cells. In Vivo 2008; 22:215-21. PubMed
  • Lam PB,Burga LN,Wu BP,Hofstatter EW,Lu KP,Wulf GM. Prolyl isomerase Pin1 is highly expressed in Her2-positive breast cancer and regulates erbB2 protein stability. Mol Cancer 2008; 7:91. PubMed
  • Lu KP, Finn G, Lee TH, Nicholson LK. Prolyl cis-trans isomerization as a molecular timer. Nat Chem Biol 2007; 3:619-29. PubMed
  • Wildemann D, Hernandez Alvarez B, Stoller G, Zhou XZ, Lu KP, Erdmann F, Ferrari D, Fischer G. An essential role for Pin1 in Xenopus laevis embryonic development revealed by specific inhibitors. Biol Chem 2007; 388:1103-11. PubMed
  • Li QM, Tep C, Yune TY, Zhou XZ, Uchida T, Lu KP, Yoon SO. Opposite regulation of oligodendrocyte apoptosis by JNK3 and Pin1 after spinal cord injury. J Neurosci 2007; 27:8395-404. PubMed
  • Balastik M, Lim J, Pastorino L, Lu KP. Pin1 in Alzheimer's disease: multiple substrates, one regulatory mechanism? Biochim Biophys Acta 2007; 1772:422-9. PubMed
  • Nicholson LK, Lu KP. Prolyl cis-trans Isomerization as a molecular timer in Crk signaling. Mol Cell 2007; 25:483-5. PubMed
  • Lu KP, Suizu F, Zhou XZ, Finn G, Lam P, Wulf G. Targeting carcinogenesis: a role for the prolyl isomerase Pin1? Mol Carcinog 2006; 45:397-402. PubMed
  • Pastorino L, Sun A, Lu PJ, Zhou XZ, Balastik M, Finn G, Wulf G, Lim J, Li SH, Li X, Xia W, Nicholson LK, Lu KP. The prolyl isomerase Pin1 regulates amyloid precursor protein processing and amyloid-beta production. Nature 2006; 440:528-34. PubMed