About

Weissleder, Ralph, MD, PhD

Ralph_weissleder
Phone: 617-726-8226
Email: rweissleder@mgh.harvard.edu
Lab: Weissleder

Research

Ralph Weissleder serves as the Director of the Center for Systems Biology at MGH. He is a Professor at Harvard Medical School, Director of the Center for Molecular Imaging Research, and Attending Clinician (Interventional Radiology) at MGH. Dr. Weissleder is also a member of the Dana Farber Harvard Cancer Center, an Associate Member of the Broad Institute (Chemical Biology Program) and a member of the Harvard Stem Cell Institute (HSCI). He is a world leader in applying molecular imaging tools to the study of complex human diseases. He has made fundamental discoveries in early disease detection, development of nanomaterials for sensing and systems analysis. His research has been translational and several of his developments have led to advanced clinical trials.

Dr. Weissleder is currently the principal investigator of several RO1 NIH grants, a P50 Center grant, a U24 grant, and a UO1 consortium focusing on nanotechnology. He has published over 500 publications in peer reviewed journals. His work has been honored with numerous awards including the J. Taylor International Prize in Medicine, the Millenium Pharmaceuticals Innovator Award, the AUR Memorial Award, the ARRS President's Award, The Society for Molecular Imaging Lifetime Achievement Award and the Academy of Molecular Imaging 2006 Distinguished Basic Scientist Award.

Publications

Weissleder R
Scaling down imaging: molecular mapping of cancer in mice
Nat Rev Cancer. 2002;2:1-8 - PMID: 11902581
Ntziachristos V, Tung CH, Bremer C, Weissleder R
Fluorescence molecular tomography resolves protease activity in vivo
Nat Med. 2002;8:757-60 - PMID: 12091907
Bachoo RM, Maher EA, Ligon KL, Sharpless NE, Chan SS, You MJ, Tang Y, DeFrances J, Stover E, Weissleder R, Rowitch DH, Louis DN, DePinho RA
Epidermal growth factor receptor and Ink4a/Arf: convergent mechanisms governing terminal differentiation and transformation along the neural stem cell to astrocyte axis
Cancer Cell. 2002;1:269-77 - PMID: 12086863
Perez JM, Josephson L, O'Loughlin T, Hogemann D, Weissleder R
Magnetic relaxation switches capable of sensing molecular interactions
Nat Biotechnol. 2002;20:816-20 - PMID: 12134166
Ji H, Ohmura K, Mahmood U, Lee DM, Hofhuis FM, Boackle SA, Takahashi K, Holers VM, Walport M, Gerard C, Ezekowitz A, Carroll MC, Brenner M, Weissleder R, Verbeek JS, Duchatelle V, Degott C, Benoist C, Mathis D
Arthritis critically dependent on innate immune system players
Immunity. 2002;16:157-68 - PMID: 11869678
Chen J, Tung CH, Mahmood U, Ntziachristos V, Gyurko R, Fishman MC, Huang PL, Weissleder R
In vivo imaging of proteolytic activity in atherosclerosis
Circulation. 2002;105:2766-71 - PMID: 12057992
Marten K, Bremer C, Khazaie K, Sameni M, Sloane B, Tung CH, Weissleder R
Detection of dysplastic intestinal adenomas using enzyme-sensing molecular beacons in mice
Gastroenterology. 2002;122:406-14 - PMID: 11832455
Pham W, Weissleder R, Tung CH
An azulene dimer as a near-infrared quencher
Angew Chem Int Edit. 2002;41:3659-62, 3519 - PMID: 12370922
Perez JM, O'Loughin T, Simeone F J, Weissleder R, Josephson L
DNA-based magnetic nanoparticle assembly acts as a magnetic relaxation nanoswitch allowing screening of DNA-cleaving agents
J Am Chem Soc. 2002;124:2856-7 - PMID: 11902860
Jaffer FA, Tung CH, Gerszten RE, Weissleder R
In vivo imaging of thrombin activity in experimental thrombi with thrombin-sensitive near-infrared molecular probe
Arterioscler Thromb Vasc Biol. 2002;22:1929-35 - PMID: 12426227
Melder RJ, Munn LL, Stoll BR, Marecos EM, Baxter LT, Weissleder R, Jain RK
Systemic distribution and tumor localization of adoptively transferred lymphocytes in mice: comparison with physiologically based pharmacokinetic model
Neoplasia. 2002;4:3-8 - PMID: 11922388 - PMCID: PMC1503314
Ichikawa T, Hogemann D, Saeki Y, Tyminski E, Terada K, Weissleder R, Chiocca EA, Basilion JP
MRI of transgene expression: correlation to therapeutic gene expression
Neoplasia. 2002;4:523-30 - PMID: 12407446 - PMCID: PMC1503666
Bogdanov AA Jr, Lin CP, Simonova M, Matuszewski L, Weissleder R
Cellular activation of the self-quenched fluorescent reporter probe in tumor microenvironment
Neoplasia. 2002;4:228-36 - PMID: 11988842 - PMCID: PMC1531696
Messerli SM, Tang Y, Giovannini M, Bronson R, Weissleder R, Breakefield XO
Detection of spontaneous schwannomas by MRI in a transgenic murine model of neurofibromatosis type 2
Neoplasia. 2002;4:501-9 - PMID: 12407444 - PMCID: PMC1503664
Bremer C, Tung CH, Bogdanov A Jr, Weissleder R
Imaging of differential protease expression in breast cancers for detection of aggressive tumor phenotypes
Radiology. 2002;222:814-8 - PMID: 11867806
Mahmood U, Tung CH, Tang Y, Weissleder R
Feasibility of in vivo multichannel optical imaging of gene expression: experimental study in mice
Radiology. 2002;224:446-51 - PMID: 12147841
Zhao M, Kircher MF, Josephson L, Weissleder R
Differential conjugation of tat peptide to superparamagnetic nanoparticles and its effect on cellular uptake
Bioconjugate Chem. 2002;13:840-4 - PMID: 12121140
Hogemann D, Ntziachristos V, Josephson L, Weissleder R
High throughput magnetic resonance imaging for evaluating targeted nanoparticle probes
Bioconjugate Chem. 2002;13:116-21 - PMID: 11792186
Wunderbaldinger P, Josephson L, Weissleder R
Tat peptide directs enhanced clearance and hepatic permeability of magnetic nanoparticles
Bioconjugate Chem. 2002;13:264-8 - PMID: 11906263
Josephson L, Kircher MF, Mahmood U, Tang Y, Weissleder R
Near-infrared fluorescent nanoparticles as combined MR/optical imaging probes
Bioconjugate Chem. 2002;13:554-60 - PMID: 12009946
Kang HW, Josephson L, Petrovsky A, Weissleder R, Bogdanov A Jr
Magnetic resonance imaging of inducible E-selectin expression in human endothelial cell culture
Bioconjugate Chem. 2002;13:122-7 - PMID: 11792187
Lin Y, Weissleder R, Tung CH
Novel near-infrared cyanine fluorochromes: synthesis, properties, and bioconjugation
Bioconjugate Chem. 2002;13:605-10 - PMID: 12009952
Tung CH, Gerszten RE, Jaffer FA, Weissleder R
A novel near-infrared fluorescence sensor for detection of thrombin activation in blood
Chembiochem. 2002;3:207-11 - PMID: 11921399
Tung CH, Lin Y, Moon WK, Weissleder R
A receptor-targeted near-infrared fluorescence probe for in vivo tumor imaging
Chembiochem. 2002;3:784-6 - PMID: 12203978
Kircher MF, Josephson L, Weissleder R
Ratio imaging of enzyme activity using dual wavelength optical reporters
Mol Imaging. 2002;1:89-95 - PMID: 12920849
Schellingerhout D, Accorsi R, Mahmood U, Idoine J, Lanza RC, Weissleder R
Coded aperture nuclear scintigraphy: a novel small animal imaging technique
Mol Imaging. 2002;1:344-53 - PMID: 12926230
Bogdanov A Jr, Matuszewski L, Bremer C, Petrovsky A, Weissleder R
Oligomerization of paramagnetic substrates result in signal amplification and can be used for MR imaging of molecular targets
Mol Imaging. 2002;1:16-23 - PMID: 12920857
Schellenberger EA, Bogdanov A Jr, Hogemann D, Tait J, Weissleder R, Josephson L
Annexin V-CLIO: a nanoparticle for detecting apoptosis by MRI
Mol Imaging. 2002;1:102-7 - PMID: 12920851
Ntziachristos, V, Bremer C, Graves EE, Ripoll J, Weissleder R
In vivo tomographic imaging of near-infrared fluorescent probes
Mol Imaging. 2002;1:82-8 - PMID: 12920848
Ntziachristos V, Weissleder R
Charge-coupled-device based scanner for tomography of fluorescent near-infrared probes in turbid media
Med Phys. 2002;29:803-9 - PMID: 12033576
Wunderbaldinger P, Josephson L, Bremer C, Moore A, Weissleder R
Detection of lymph node metastases by contrast-enhanced MRI in an experimental model
Magn Reson Med. 2002;47:292-7 - PMID: 11810672
Moore, A, Sun PZ, Cory D, Hogemann D, Weissleder R, Lipes MA
MRI of insulitis in autoimmune diabetes
Magn Reson Med. 2002;47:751-8 - PMID: 11948737
Kang HW, Weissleder R, Bogdanov A Jr
Targeting of MPEG-protected polyamino acid carrier to human E-selectin in vitro
Amino Acids. 2002;23:301-8 - PMID: 12373551
Tung CH, Mueller S, Weissleder R
Novel branching membrane translocational peptide as gene delivery vector
Bioorg Med Chem. 2002;10:3609-14 - PMID: 12213476
Kim YR, Savellano MD, Weissleder R, Bogdanov A Jr
Steady-state and dynamic contrast MR imaging of human prostate cancer xenograft tumors: a comparative study
Technol Cancer Res T. 2002;1:489-95 - PMID: 12625776
Harisinghani MG, Barentsz JO, Hahn PF, Deserno W, de la Rosette J, Saini S, Marten K, Weissleder R
MR lymphangiography for detection of minimal nodal disease in patients with prostate cancer
Acad Radiol. 2002;9 Suppl 2:S312-3 - PMID: 12188258
Schellenberger EA, Hogemann D, Josephson L, Weissleder R
Annexin V-CLIO: a nanoparticle for detecting apoptosis by MRI
Acad Radiol. 2002;9 Suppl 2:S310-1 - PMID: 12188257
Wunderbaldinger P, Josephson L, Weissleder R
Crosslinked iron oxides (CLIO): a new platform for the development of targeted MR contrast agents
Acad Radiol. 2002;9 Suppl 2:S304-6 - PMID: 12188255
Mahmood U, Weissleder R
Some tools for molecular imaging
Acad Radiol. 2002;9:629-31 - PMID: 12061735
Ntziachristos, V, Bremer C, Tung C, Weissleder R
Imaging cathepsin B up-regulation in HT-1080 tumor models using fluorescence-mediated molecular tomography (FMT)
Acad Radiol. 2002;9 Suppl 2:S323-5 - PMID: 12188262
Bremer C, Tung CH, Weissleder R
Molecular imaging of MMP expression and therapeutic MMP inhibition
Acad Radiol. 2002;9 Suppl 2:S314-5 - PMID: 12188259

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