Photo of John W. Chen, MD, PhD

John W. Chen, MD, PhD

Massachusetts General Hospital

Massachusetts General Hospital
Phone: (617) 726-8320


chenjo@helix.mgh.harvard.edu

Photo of John W. Chen, MD, PhD

Massachusetts General Hospital
Phone: (617) 726-8320


chenjo@helix.mgh.harvard.edu

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John W. Chen, MD, PhD

Massachusetts General Hospital

EDUCATIONAL TITLES

  • Associate Professor, Radiology, Harvard Medical School

HCC PROGRAM AFFILIATION

Research Abstract

My primary research focus is on the molecular imaging of neurological diseases. We have developed the first small-chelate MR agent targeting myeloperoxidase, an enzyme secreted by neutrophils and macrophages in cancers and other inflammatory diseases. By imaging the inflammatory response surrounding tumors, we may be able to increase our diagnostic sensitivity in detection and in evaluating treatment response. In addition to small-chelate agents, we also employ novel iron-oxide nanoparticle MR agents and optical methods to improve the imaging of oncological diseases.

Publications from Harvard Catalyst Profiles

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  • Yin Z, Wu L, Zhang Y, Sun Y, Lee GY, Lu S, Gao X, Chen JW, Subudhi S, Ho W, Zhu C, Ren J, Ferraro GB, Muzikansky A, Stemmer-Rachamimov A, Mao J, Plotkin SR, Xu L. Deciphering and Targeting the Schwannoma-Neuron-Macrophage Crosstalk for the Treatment of Schwannomatosis and Associated Pain. Adv Sci (Weinh) 2026. PubMed
  • Abou Haidar E, Prabhakar S, Geffrey AL, Mahamdeh M, Tomeh T, Breyne K, Roumieh E, Gurevich M, Soberman RJ, Wojtkiewicz GR, Chen JW, Han JS, Stemmer-Rachamimov A, Breakefield XO. AAV hamartin gene therapy in a stochastic, cerebral mouse model of tuberous sclerosis type 1. Mol Ther Methods Clin Dev 2025; 33:101556. PubMed
  • Wang C, Jalali Motlagh N, Wojtkiewicz GR, Yang H, Kim HH, Chen JW. A specific and adaptable approach to track CD206 macrophages by molecular MRI and fluorescence imaging. Theranostics 2025; 15:1094-1109. PubMed
  • Parsi S, Zhu C, Motlagh NJ, Kim D, Küllenberg EG, Kim HH, Gillani RL, Chen JW. Basic Science of Neuroinflammation and Involvement of the Inflammatory Response in Disorders of the Nervous System. Magn Reson Imaging Clin N Am 2024; 32:375-384. PubMed
  • Li JH, Forghani R, Bure L, Wojtkiewicz GR, Wu Y, Iwamoto Y, Ali M, Li A, Wang C, Jalali Motlagh N, Papadakis AI, Pusztaszeri MP, Spatz A, Curtin H, Cheng YS, Chen JW. Molecular immuno-imaging improves tumor detection in head and neck cancer. FASEB J. 2022; 36:e22092. PubMed
  • Ali M, Fulci G, Grigalavicius M, Pulli B, Li A, Wojtkiewicz GR, Wang C, Hsieh KL, Linnoila JJ, Theodossiou TA, Chen JW. Myeloperoxidase exerts anti-tumor activity in glioma after radiotherapy. Neoplasia 2022; 26:100779. PubMed
  • Jalali Motlagh N, Wang C, Kuellenberg EG, Wojtkiewicz GR, Schmidt S, Chen JW. D-Mannose Slows Glioma Growth by Modulating Myeloperoxidase Activity. Cancers (Basel) 2021. PubMed
  • Badr CE, da Hora CC, Kirov AB, Tabet E, Amante R, Maksoud S, Nibbs AE, Fitzsimons E, Boukhali M, Chen JW, Chiu NHL, Nakano I, Haas W, Mazitschek R, Tannous BA. Obtusaquinone: A Cysteine-Modifying Compound That Targets Keap1 for Degradation. ACS Chem Biol 2020; 15:1445-1454. PubMed
  • Chen J, Landegger LD, Sun Y, Ren J, Maimon N, Wu L, Ng MR, Chen JW, Zhang N, Zhao Y, Gao X, Fujita T, Roberge S, Huang P, Jain RK, Plotkin SR, Stankovic KM, Xu L. A cerebellopontine angle mouse model for the investigation of tumor biology, hearing, and neurological function in NF2-related vestibular schwannoma. Nat Protoc 2019; 14:541-555. PubMed
  • Li A, Wu Y, Linnoila J, Pulli B, Wang C, Zeller M, Ali M, Lewandrowski GK, Li J, Tricot B, Keliher E, Wojtkiewicz GR, Fulci G, Feng X, Tannous BA, Yao Z, Chen JW. Surface biotinylation of cytotoxic T lymphocytes for in vivo tracking of tumor immunotherapy in murine models. Cancer Immunol Immunother 2016. PubMed
  • Tong T, Yang Z, Chen JW, Zhu J, Yao Z. Dynamic 1H-MRS assessment of brain tumors: a novel approach for differential diagnosis of glioma. 2015. PubMed
  • Kuijten MM, Hannah Degeling M, Chen JW, Wojtkiewicz G, Waterman P, Weissleder R, Azzi J, Nicolay K, Tannous BA. Multimodal targeted high relaxivity thermosensitive liposome for in vivo imaging. Sci Rep 2015; 5:17220. PubMed
  • Lartey FM, Ahn GO, Ali R, Rosenblum S, Miao Z, Arksey N, Shen B, Colomer MV, Rafat M, Liu H, Alejandre-Alcazar MA, Chen JW, Palmer T, Chin FT, Guzman R, Loo BW, Graves E. The relationship between serial [(18) F]PBR06 PET imaging of microglial activation and motor function following stroke in mice. Mol Imaging Biol 2014. PubMed
  • Oklu R, Deipolyi AR, Wicky S, Ergul E, Deik AA, Chen JW, Hirsch JA, Wojtkiewicz GR, Clish CB. Identification of small compound biomarkers of pituitary adenoma: a bilateral inferior petrosal sinus sampling study. 2014. PubMed
  • Weber GF, Chousterman BG, Hilgendorf I, Robbins CS, Theurl I, Gerhardt LM, Iwamoto Y, Quach TD, Ali M, Chen JW, Rothstein TL, Nahrendorf M, Weissleder R, Swirski FK. Pleural innate response activator B cells protect against pneumonia via a GM-CSF-IgM axis. J Exp Med 2014; 211:1243-56. PubMed
  • Katsimpardi L, Litterman NK, Schein PA, Miller CM, Loffredo FS, Wojtkiewicz GR, Chen JW, Lee RT, Wagers AJ, Rubin LL. Vascular and neurogenic rejuvenation of the aging mouse brain by young systemic factors. Science 2014; 344:630-4. PubMed
  • Ali M, Pulli B, Chen JW. Molecular imaging of macrophage enzyme activity in cardiac inflammation. Curr Cardiovasc Imaging Rep 2014; 7:9258. PubMed
  • Lartey FM, Ahn GO, Shen B, Cord KT, Smith T, Chua JY, Rosenblum S, Liu H, James ML, Chernikova S, Lee SW, Pisani LJ, Tirouvanziam R, Chen JW, Palmer TD, Chin FT, Guzman R, Graves EE, Loo BW. PET imaging of stroke-induced neuroinflammation in mice using [18F]PBR06. Mol Imaging Biol 2014; 16:109-17. PubMed
  • Lai CP, Mardini O, Ericsson M, Prabhakar S, Maguire CA, Chen JW, Tannous BA, Breakefield XO. Dynamic biodistribution of extracellular vesicles in vivo using a multimodal imaging reporter. ACS Nano 2014; 8:483-94. PubMed
  • Hsieh LC, Chen JW, Wang LY, Tsang YM, Shueng PW, Liao LJ, Lo WC, Lin YC, Tseng CF, Kuo YS, Jhuang JY, Tien HJ, Juan HF, Hsieh CH. Predicting the severity and prognosis of trismus after intensity-modulated radiation therapy for oral cancer patients by magnetic resonance imaging. PLoS ONE 2014; 9:e92561. PubMed
  • Majmudar MD, Keliher EJ, Heidt T, Leuschner F, Truelove J, Sena BF, Gorbatov R, Iwamoto Y, Dutta P, Wojtkiewicz G, Courties G, Sebas M, Borodovsky A, Fitzgerald K, Nolte MW, Dickneite G, Chen JW, Anderson DG, Swirski FK, Weissleder R, Nahrendorf M. Monocyte-directed RNAi targeting CCR2 improves infarct healing in atherosclerosis-prone mice. Circulation 2013. PubMed
  • González RG, Copen WA, Schaefer PW, Lev MH, Pomerantz SR, Rapalino O, Chen JW, Hunter GJ, Romero JM, Buchbinder BR, Larvie M, Hirsch JA, Gupta R. The Massachusetts General Hospital acute stroke imaging algorithm: an experience and evidence based approach. 2013; 5 Suppl 1:i7-12. PubMed
  • Cortez-Retamozo V, Etzrodt M, Newton A, Ryan R, Pucci F, Sio SW, Kuswanto W, Rauch PJ, Chudnovskiy A, Iwamoto Y, Kohler R, Marinelli B, Gorbatov R, Wojtkiewicz G, Panizzi P, Mino-Kenudson M, Forghani R, Figueiredo JL, Chen JW, Xavier R, Swirski FK, Nahrendorf M, Weissleder R, Pittet MJ. Angiotensin II drives the production of tumor-promoting macrophages. Immunity 2013; 38:296-308. PubMed
  • Pulli B, Ali M, Forghani R, Schob S, Hsieh KL, Wojtkiewicz G, Linnoila JJ, Chen JW. Measuring myeloperoxidase activity in biological samples. PLoS ONE 2013; 8:e67976. PubMed
  • Prabhakar S, Goto J, Zhang X, Zuang X, Sena-Esteves M, Bronson R, Brockmann J, Gianni D, Wojtkiewicz GR, Chen JW, Stemmer-Rachamimov A, Kwiatkowski DJ, Breakefield XO. Stochastic model of Tsc1 lesions in mouse brain. PLoS ONE 2013; 8:e64224. PubMed
  • Prabhakar S, Goto J, Zhang X, Sena-Esteves M, Bronson R, Brockmann J, Gianni D, Wojtkiewicz GR, Chen JW, Stemmer-Rachamimov A, Kwiatkowski DJ, Breakefield XO. Correction: Stochastic Model of Tsc1 Lesions in Mouse Brain. PLoS ONE 2013. PubMed
  • Chen JW, Figueiredo JL, Wojtkiewicz GR, Siegel C, Iwamoto Y, Kim DE, Nolte MW, Dickneite G, Weissleder R, Nahrendorf M. Selective factor XIIa inhibition attenuates silent brain ischemia: application of molecular imaging targeting coagulation pathway. JACC Cardiovasc Imaging 2012; 5:1127-38. PubMed
  • Forghani R, Wojtkiewicz GR, Zhang Y, Seeburg D, Bautz BR, Pulli B, Milewski AR, Atkinson WL, Iwamoto Y, Zhang ER, Etzrodt M, Rodriguez E, Robbins CS, Swirski FK, Weissleder R, Chen JW. Demyelinating diseases: myeloperoxidase as an imaging biomarker and therapeutic target. Radiology 2012. PubMed
  • Niers JM, Chen JW, Lewandrowski G, Kerami M, Garanger E, Wojtkiewicz G, Waterman P, Keliher E, Weissleder R, Tannous BA. Single reporter for targeted multimodal in vivo imaging. J Am Chem Soc 2012; 134:5149-56. PubMed
  • Cortez-Retamozo V, Etzrodt M, Newton A, Rauch PJ, Chudnovskiy A, Berger C, Ryan RJ, Iwamoto Y, Marinelli B, Gorbatov R, Forghani R, Novobrantseva TI, Koteliansky V, Figueiredo JL, Chen JW, Anderson DG, Nahrendorf M, Swirski FK, Weissleder R, Pittet MJ. Origins of tumor-associated macrophages and neutrophils. Proc Natl Acad Sci U S A 2012; 109:2491-6. PubMed
  • Atkinson W, Forghani R, Wojtkiewicz GR, Pulli B, Iwamoto Y, Ueno T, Waterman P, Truelove J, Oklu R, Chen JW. Ligation of the jugular veins does not result in brain inflammation or demyelination in mice. PLoS ONE 2012; 7:e33671. PubMed
  • Zhang W, Fulci G, Buhrman JS, Stemmer-Rachamimov AO, Chen JW, Wojtkiewicz GR, Weissleder R, Rabkin SD, Martuza RL. Bevacizumab with angiostatin-armed oHSV increases antiangiogenesis and decreases bevacizumab-induced invasion in U87 glioma. Mol Ther 2012. PubMed
  • Su HS, Nahrendorf M, Panizzi P, Breckwoldt MO, Rodriguez E, Iwamoto Y, Aikawa E, Weissleder R, Chen JW. Vasculitis: molecular imaging by targeting the inflammatory enzyme myeloperoxidase. Radiology 2012; 262:181-90. PubMed
  • Kleijn A, Chen JW, Buhrman JS, Wojtkiewicz GR, Iwamoto Y, Lamfers ML, Stemmer-Rachamimov AO, Rabkin SD, Weissleder R, Martuza RL, Fulci G. Distinguishing inflammation from tumor and peritumoral edema by myeloperoxidase magnetic resonance imaging. Clin Cancer Res 2011; 17:4484-93. PubMed
  • Niers JM, Chen JW, Weissleder R, Tannous BA. Enhanced in vivo imaging of metabolically biotinylated cell surface reporters. Anal Chem 2011; 83:994-9. PubMed
  • Swirski FK, Wildgruber M, Ueno T, Figueiredo JL, Panizzi P, Iwamoto Y, Zhang E, Stone JR, Rodriguez E, Chen JW, Pittet MJ, Weissleder R, Nahrendorf M. Myeloperoxidase-rich Ly-6C+ myeloid cells infiltrate allografts and contribute to an imaging signature of organ rejection in mice. J Clin Invest 2010; 120:2627-34. PubMed
  • Rodríguez E, Nilges M, Weissleder R, Chen JW. Activatable magnetic resonance imaging agents for myeloperoxidase sensing: mechanism of activation, stability, and toxicity. J Am Chem Soc 2010; 132:168-77. PubMed
  • Ronald JA, Chen JW, Chen Y, Hamilton AM, Rodriguez E, Reynolds F, Hegele RA, Rogers KA, Querol M, Bogdanov A, Weissleder R, Rutt BK. Enzyme-sensitive magnetic resonance imaging targeting myeloperoxidase identifies active inflammation in experimental rabbit atherosclerotic plaques. Circulation 2009; 120:592-9. PubMed
  • Rajendran R, Ronald JA, Ye T, Minqin R, Chen JW, Weissleder R, Rutt BK, Halliwell B, Watt F. Nuclear microscopy: a novel technique for quantitative imaging of gadolinium distribution within tissue sections. Microsc. Microanal. 2009; 15:338-44. PubMed
  • McCann CM,Waterman P,Figueiredo JL,Aikawa E,Weissleder R,Chen JW. Combined magnetic resonance and fluorescence imaging of the living mouse brain reveals glioma response to chemotherapy. Neuroimage 2009; 45:360-9. PubMed
  • Zhu H,Acquaviva J,Ramachandran P,Boskovitz A,Woolfenden S,Pfannl R,Bronson RT,Chen JW,Weissleder R,Housman DE,Charest A. Oncogenic EGFR signaling cooperates with loss of tumor suppressor gene functions in gliomagenesis. Proc Natl Acad Sci U S A 2009; 106:2712-6. PubMed
  • Breckwoldt MO,Chen JW,Stangenberg L,Aikawa E,Rodriguez E,Qiu S,Moskowitz MA,Weissleder R. Tracking the inflammatory response in stroke in vivo by sensing the enzyme myeloperoxidase. Proc Natl Acad Sci U S A 2008; 105:18584-9. PubMed
  • Brass SD,Durand ML,Stone JH,Chen JW,Stone JR. Case records of the Massachusetts General Hospital. Case 36-2008. A 59-year-old man with chronic daily headache. N Engl J Med 2008; 359:2267-78. PubMed
  • Chen JW,Breckwoldt MO,Aikawa E,Chiang G,Weissleder R. Myeloperoxidase-targeted imaging of active inflammatory lesions in murine experimental autoimmune encephalomyelitis. Brain 2008; 131:1123-33. PubMed
  • Nahrendorf M,Sosnovik D,Chen JW,Panizzi P,Figueiredo JL,Aikawa E,Libby P,Swirski FK,Weissleder R. Activatable magnetic resonance imaging agent reports myeloperoxidase activity in healing infarcts and noninvasively detects the antiinflammatory effects of atorvastatin on ischemia-reperfusion injury. Circulation 2008; 117:1153-60. PubMed
  • Chen JW, Querol Sans M, Bogdanov A, Weissleder R. Imaging of myeloperoxidase in mice by using novel amplifiable paramagnetic substrates. Radiology 2006; 240:473-81. PubMed
  • Querol M, Chen JW, Bogdanov AA. A paramagnetic contrast agent with myeloperoxidase-sensing properties. Org Biomol Chem 2006; 4:1887-95. PubMed
  • Tannous BA, Grimm J, Perry KF, Chen JW, Weissleder R, Breakefield XO. Metabolic biotinylation of cell surface receptors for in vivo imaging. Nat Methods 2006; 3:391-6. PubMed
  • Querol Sans M, Chen JW, Weissleder R, Bogdanov AA. Myeloperoxidase activity imaging using (67)Ga labeled substrate. Mol Imaging Biol 2005; 7:403-10. PubMed
  • Chen JW, Wasserman BA. Vulnerable plaque imaging. Neuroimaging Clin N Am 2005; 15:609-21, xi. PubMed
  • Querol M, Chen JW, Weissleder R, Bogdanov A. DTPA-bisamide-based MR sensor agents for peroxidase imaging. Org Lett 2005; 7:1719-22. PubMed
  • Chen JW, Pham W, Weissleder R, Bogdanov A. Human myeloperoxidase: a potential target for molecular MR imaging in atherosclerosis. Magn Reson Med 2004; 52:1021-8. PubMed
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* Concepts are MeSH terms, automatically derived from member publications

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