Daniel Haber, MD, PhD The Haber laboratory focuses on understanding the fundamental genetics of human cancer, from inherited mutations that confer familial predisposition to genetic mutations that are acquired by tumors themselves and may render them susceptible to specific targeted drug therapies. For example, we have identified mutations in the EGFR gene that confer dramatic sensitivity of some lung cancers to drugs that inhibit that pathway, pointing toward ... the importance of genetic classification of common epithelial cancers in Haber Laboratory* bioengineering team led by Dr. Mehmet Toner, the molecular biology group Nicola Aceto, PhD of Dr. Shyamala Maheswaran, and the Massachusetts General Hospital Francesca Bersani, PhD Cancer Center clinical disease centers to develop, characterize and apply a Katherine Broderick microfluidic device capable of isolating rare circulating tumor cells (CTCs) Valentine Comaills, PhD Rushil Desai applying novel targeted therapies. We have also collaborated with the in the blood of patients with cancer. This new technology offers the promise Maria Donaldson of 1) noninvasive monitoring of cancers during their treatment for the Nora Feeney emergence of drug resistance; 2) early detection of invasive cancers; and Douglas Fox ultimately 3) understanding and preventing blood-borne spread of cancer. Daniel Haber, MD, PhD Xin Hong, PhD Sarah Javaid, PhD Our laboratory is interested in the genetics of emergence of drug resistance mutations, we Woo Jae Kim, PhD human cancer. Current projects include the use are now collaborating with the Toner and Laura Libby of a microfluidic device to capture circulating Maheswaran laboratories to characterize Joseph Licausi tumor cells (CTCs) and its application in novel microfluidic devices capable of isolating Robert Maher molecular-directed therapy and in the study of CTCs from the blood of cancer patients. Our David Miyamoto, MD, PhD human cancer metastasis. most advanced version of these CTC-Chips Brian Nahed, MD Circulating Tumor Cells and Molecular Genetics Underlying Targeted Cancer Therapeutics Ryan O’Keefe Shiwei Pan S. Michael Rothenberg, MD, PhD James Sullivan, PhD Tilak Sundaresan, MD Nicole Vincent Jordan, PhD Marissa Wells Kristina Xega Toshifumi Yae, MD, PhD Yu (Eric) Zheng, PhD * co-directed with Shyamala Maheswaran, PhD Activating mutations in the epidermal growth factor receptor (EGFR) were identified in our laboratory in the subset of non-small cell lung cancer (NSCLC) with dramatic responses to the tyrosine kinase inhibitor gefitinib. We have studied mechanisms underlying such oncogene addiction, as well as the pathways that lead to the acquisition of resistance to targeted therapies, including the application of irreversible kinase inhibitors to circumventing mutations that alter drug binding affinity. Following on our efforts to monitor the 30 MGH Center For Cancer Research ANNUAL REPORT 2014 relies upon blood flow through a specialized chamber, which allows the high efficiency separation of antibody-tagged leukocytes, thereby identifying intact CTCs without selection bias. In a series of CTC studies, we have shown that the number of captured CTCs correlates with clinical evidence of tumor response, and that the cells can be used to define molecular markers characteristic of the underlying malignancy, including EGFR mutations and EML4-ALK translocations in lung cancer, and measurements of androgen receptor (AR) activity in prostate cancer. We have applied next generation single-molecule RNA sequencing to identify non-canonical Wnt signaling as a suppressor of anoikis Selected Publications: Aceto N, Bardia A, Miyamoto DT, Donaldson MC, Wittner BS, Spencer JA, Yu M, Pely A, Engstrom A, Zhu H, Brannigan BW, Kapur R, Stott SL, Shioda T, Ramaswamy S, Ting DT, Lin CP, Toner M, Haber DA*, Maheswaran S*. Circulating tumor cell clusters are oligoclonal precursors of breast cancer metastasis. Cell. 158(5):111022, 2014. Circulating prostate tumor cell cluster stained for PSA (green) along with Ki67 (orange) and CD45 (red). pathways in circulating pancreatic cancer combined with detailed genetic analysis of cells, while in melanoma and in glioblastoma, tumor cells sampled noninvasively during the we developed tools to isolate and molecularly course of cancer treatment. characterize CTCs. Current efforts are directed at isolating single Our most recent studies have focused on CTCs to uncover the heterogeneous nature breast cancer, where we demonstrated of these rare metatastic precursors. Further treatment-associated epithelial-to- technological improvements in CTC capture mesenchymal transition (EMT) within CTCs. and detection are under study for potential Using a combination of mouse models and applications in early detection of cancer, patient-derived studies, we observed that monitoring tumor genotypes over the course tumor-derived fragments generate CTC- of treatment, and biological characterization of Clusters, which have greatly enhanced CTCs themselves. metastatic propensity compared with single CTCs. CTC-Clusters are held together by plakoglobin, whose knockdown dramatically suppresses CTC-Cluster formation and metastatic spread of breast cancer cells. Finally, we successfully established long-term in vitro cultures of CTCs from patients with estrogen-receptor positive breast cancer, identifying treatment-associated mutations in the estrogen receptor (ESR1), as well as acquired mutations in drugable therapeutic targets, such as PIK3CA and FGFR. The development of such CTC-derived cultures may enable functional predictive drug testing, Yu M, Bardia A, Aceto N, Bersani F, Madden M, Donaldson MC, Desai R, Comaills V, Zheng Z, Wittner BS, Stojanov P, Brachtel E, Sgroi D, Kapur R, Shioda T, Ting, DT, Ramaswamy S, Getz G, Iafrate AJ, Benes C, Toner, M, Maheswaran S* and Haber DA*. Ex vivo culture of circulating breast tumor cells for individualized testing of drug susceptibility. Science. 346(6193): 216-22, 2014. Luo X, Mitra D, Sullivan RJ, Wittner BS, Kimuar AM, Pan S, Hoang MP, Brannigan BW, Lawrence DP, Flaherty KT, Sequist LV, McMahon M, Bosenberg MW, Stott SL, Ting DT, Ramaswamy S, Toner, M, Fisher DE, Maheswaran S* and Haber DA* Isolation and molecular characcterization of circulating melanoma cells. Cell Reports. 7: 645-653, 2014. Haber DA and Velculescu VE. Blood-based analyses of cancer: Circulating tumor cells and circulating tumor DNA. Cancer Discovery. 4: 650-661, 2014. Yu M*, Bardia A*, Wittner BS, Stott SL, SMas ME, Ting DT, Isakoff SJ, Ciciliano JC, Wells MN, Shah AM, Concannon KE, Donaldson MC, Sequist LV, Bracheter E, Sgroi D, Baselga J, Ramaswamy S, Toner M, Haber DA* and Maheswaran S*. Circulating breast tumor cells exhibit dynamic changes in epithelial and mesenchymal composition. Science 339: 580-4, 2013. Ozkumur E*, Shah AM*, Cicilano JC, Emmink BL, Miyamoto DT, Brachter E, Yu M, Chen PI, Morgan B, Trautwein J, Kimura A, Sengupta S, Stott SL, Karabacak NM, Barber TA, Walsh JR, Smith K, Spuhler PS, Sullivan JP, Lee RJ, Ting DT, Luo X, Shaw AT, Bardia A, Sequist LV, Louis DN, Maheswaran S, Kapur R, Haber DA, Toner M. Inertial focusing for tumor antigen-dependent and –independent sorting of rare circulating tumor cells. Science Transl. Med 3: 179, 2013. *Co-corresponding authors Principal Investigators 31
© Copyright 2024