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Nicholas Chiorazzi

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Nicholas Chiorazzi
NationalityAmerican
EducationGeorgetown University School of Medicine
Occupation(s)Physician, Scientist
EmployerThe Feinstein Institute for Medical Research
Known forMedical Research
Website[1]

Nicholas Chiorazzi, physician and researcher, is Head of the Karches Center for Chronic Lymphocytic Leukemia Research at The Feinstein Institute for Medical Research in Manhasset, NY.[1]

Education

Dr. Nicholas Chiorazzi received his M.D. from Georgetown University School of Medicine and completed 4 years of internal medicine training in the Cornell Cooperating Hospitals program at North Shore University Hospital and Memorial Sloan-Kettering Cancer Center. He is also trained in Rheumatology and in Allergy-Clinical Immunology.

Academic Appointments

Dr. Chiorazzi was a research fellow in immunology at Harvard University in the department of Baruj Benacerraf, M.D., who a few years later shared the Nobel Prize in Physiology or Medicine. Dr. Chiorazzi was then worked with Henry G. Kunkel at The Rockefeller University. At Rockefeller, his time was spent studying human B cells in normal and disease settings. In 1987, Dr. Chiorazzi was appointed Chief of the then newly created Division of Rheumatology & Allergy-Clinical Immunology at North Shore University Hospital. In 2000, he was appointed the first Director and CEO of the Feinstein Institute for Medical Research, a position he held until January 2006. Dr. Chiorazzi is currently Professor of Medicine and of Cell Biology in the Albert Einstein College of Medicine[2] and Head of the the Karches Center for Chronic Lymphocytic Leukemia Research at The Feinstein Institute for Medical Research.[1]

Principal Scientific Contributions

Dr. Chiorazzi's research interests revolve around understanding the activation and maturation of B-lymphocytes in health and disease, in particular chronic lymphocytic leukemia (CLL). Dr. Chiorazzi and his colleagues have demonstrated that: CLL cells are responsive to signals from the internal microenvironment, in particular those delivered by the B-cell antigen receptor (BCR) leading to leukemic cell proliferation and maturation or death; BCR-induced signals are likely delivered by common self antigens and are mediated through sets of BCRs of remarkably similar amino acid structure[3]; patients with CLL segregate into two subgroups based on BCR structure that differ dramatically in clinical outcome[4]; CLL cells proliferate and die in vivo at rates higher than originally appreciated. These findings have led to the view that (auto)antigen drive is a promoting factor in the development and evolution of CLL and have been a pivotal in refining patient prognosis.

Awards and Honors

Selected Publications

[To view all PubMed publications by Dr. Nicholas Chiorazzi go to: http://www.ncbi.nlm.nih.gov/pubmed?term=%22Chiorazzi%20N%22]

  • Bagnara D, Kaufman M, Calissano C, Marsilio S, Patten P, Chum P, Yan X-J, Allen SL, Lee A, Gregersen PK, Rai KR, Chiorazzi N. (2011) A novel adoptive transfer model of chronic lymphocytic leukemia suggests a key role for T lymphocytes in the disease. Blood 117: 5463-5472
  • Chiorazzi N, Ferrarini M. (2011) Cellular origin(s) of chronic lymphocytic leukemia: cautionary notes and additional considerations and possibilities. Blood. 117: 1781-1791
  • Chu CC, Catera R, Zhang L, Didier S, Agagnina BM, Damle RN, Kaufman MS, Kolitz JE, Allen SL, Rai KR, Chiorazzi N. (2010) Many chronic lymphocytic leukemia antibodies recognize apoptotic cells with exposed non-muscle myosin heavy chain IIA: Implications for patient outcome and cell of origin. Blood 115: 3907-3915
  • Calissano C, Damle RN, Hayes G, Murphy EJ, Hellerstein MK, Sison C, Kaufman MS, Kolitz JE, Allen SL, Rai KR, Chiorazzi N. (2009) In vivo intraclonal and interclonal kinetic heterogeneity in B-cell chronic lymphocytic leukemia. Blood 2009; 114: 4832-4942
  • Seiler T, Woelfle M, Yancopoulos Y, Catera R, Li W, Hatzi K, Moreno C, Torres M, Paul S, Dohner H, Stilgenbauer S, Kaufman MS, Kolitz JE, Allen SL, Rai KR, Chu CC, Chiorazzi N. (2009) Characterization of structurally-defined epitopes recognized by monoclonal antibodies produced by chronic lymphocytic leukemia B cells. Blood 114: 3615-3624
  • Grubor VD, Krasnitz A, Troge JE, Meth JL, Lakshmi B, Kendall JT, Yamrom B, Alex G, Pai D, Navin N, Hufnagel LA, Lee Y-H, Cook K, Allen SL, Rai KR, Damle RN, Calissano C, Chiorazzi N, Wigler MH, Esposito D. (2009) Novel genomic alterations and clonal evolution in Chronic Lymphocytic Leukemia revealed by Representational Oligonucleotide Microarray Analysis (ROMA). Blood. 113: 1294-303
  • Chu CC, Catera R, Hatzi K, Yan X-J, Zhang l, Wang XB, Fales HM, Allen SL, Kolitz JE, Rai KR, Chiorazzi N. (2008) Chronic lymphocytic leukemia antibodies with a common stereotypic rearrangement recognize non-muscle myosin heavy chain IIA. Blood. 112:5122-5129.
  • Catera R, Silverman GJ, Hatzi K, Seiler TM, Didier S, Zhang L, Herve M, Meffre E, Oscier DG, Vlassara H, Chen Y, Allen SL, Rai KR, Chu CC, Chiorazzi N. (2008) Chronic lymphocytic leukemia cells recognize conserved epitopes associated with apoptosis and chemical modifications. Mol Med. 14: 665-674.
  • Li F-J, Ding S, Pan J, Shakhmatov MA, Kashentseva E, Wu J, Li Y, Soong S-J, Chiorazzi N, Davis RS. (2008) FCRL2 expression predicts IgVH mutation status and clinical progression in chronic lymphocytic leukemia. Blood. 112:179-187.
  • Damle RN, Temburni S, Calissano C, Yancopoulos S, Banapour T, Sison C, Allen SL, Rai KR, Chiorazzi N. (2007) CD38 expression labels an activated subset within chronic lymphocytic leukemia clones enriched in proliferating B cells. Blood. 110: 3352-3359.
  • Chiorazzi N, Ferrarini M. (2006) Evolving view of the in-vivo kinetics of chronic lymphocytic leukemia B cells. Hematology (Am Soc Hematol Educ Program). 273-278.
  • Ghiotto F, Fais F, Albesiano E, Sison C, Valetto A, Gaidano G, Reinhardt J, Kolitz JE, Rai KR, Allen SL, Ferrarini M, Chiorazzi N. (2006) Similarities and differences between the light and heavy chain Ig variable region gene repertoires in chronic lymphocytic leukemia. Mol Med. 12: 300-308.
  • Yan X-J, Albesiano E, Zanesi N, Yancopoulos S, Sawyer A, Romano E, Petlickovski A, Efremov DG, Croce CM, Chiorazzi N. (2006) B cell receptors in TCL1 transgenic mice resemble those of aggressive, treatment-resistant human chronic lymphocytic leukemia. Proc Natl Acad Sci USA. 103:11713-11718.
  • Herve M, Xu K, Ng Y-S, Wardemann H, Albesiano E, Messmer BT, Chiorazzi N, Meffre E. (2005) Unmutated and mutated chronic lymphocytic leukemia derive from self-reactive B cell precursors despite expressing different antibody reactivity. J Clin Invest. 115: 1636-1643.
  • Messmer BT, Messmer D, Allen SL, Kolitz JE, Kudalkar P, Cesar D, Murphy EJ, Koduru P, Ferrarini M, Zupo S, Cutrona G, Damle RN, Wasil T, Rai KR, Hellerstein MK, Chiorazzi N. (2005) In vivo measurements document the dynamic cellular kinetics of chronic lymphocytic leukemia B cells. J Clin Invest. 115: 755-764.
  • Chiorazzi N, Rai KR, Ferrarini M. (2005) Mechanisms of Disease. Chronic Lymphocytic Leukemia. N Engl J Med. 352: 804-815.
  • Messmer BT, Albesiano E, Efremov DG, Ghiotto F, Allen SL, Kolitz J, Damle R, Fais F, Messmer D, Rai KR, Ferrarini M, Chiorazzi N. (2004) Distinct sets of stereotyped antigen receptors indicate the limited primary structural diversity in antigen-binding sites of CLL B cells. J Exp Med. 200: 519-525.
  • Messmer BT, Albesiano E, Messmer D, Chiorazzi N. (2003) The pattern and distribution of immunoglobulin VH gene mutations in chronic lymphocytic leukemia B cells are consistent with the canonical somatic hypermutation process. Blood. 103: 3490-3495.
  • Ghiotto F, Fais F, Valetto A, Albesiano E, Hashimoto S, Dono M, Ikematsu H, Allen SL, Kolitz J, Rai KR, Nardini M, Tramontano A, Ferrarini M, Chiorazzi N. (2004) Remarkably similar antigen receptors among a subset of patients with chronic lymphocytic leukemia. J Clin Invest. 113: 1008-1016.
  • Damle RN, Batliwalla FM, Ghiotto F, Valetto A, Albesiano E, Sison C, Allen SL, Kolitz J, Vinciguerra VP, Kudalkar P, Wasil T, Rai KR, Ferrarini M, Gregersen PK, Chiorazzi N. (2004) Telomere length and telomerase activity delineate distinctive replicative features of the B-CLL subgroups defined by Ig V gene mutations. Blood. 103: 375-382.
  • Chiorazzi N, Messmer BT, Damle RN, Alllen SL, Rai KR, Ferrarini M. (2003) Unraveling the biology of chronic lymphocytic leukemia. Hematology (Am Soc Hematol Educ Program). 153-159.
  • Albesiano E, Messmer BT, Damle RN, Allen SL, Rai KR, Chiorazzi N. (2003) Activation-induced cytidine deaminase in chronic lymphocytic leukemia B cells: expression as multiple forms in a dynamic, variably sized fraction of the clone. Blood. 102: 3333-3339.
  • Chiorazzi N, Ferrarini M. (2003) B Cell Chronic Lymphocytic Leukemia: Lessons learned from studies of the B cell antigen receptor. Annu Rev Immunol. 21: 841-894.
  • Damle RN, Ghiotto F, Valetto A, Albesiano E, Fais F, Yan X-J, Sison CP, Allen SL, Kolitz J, Schulman P, Vinciguerra VP, Budde P, Frey J, Rai KR, Ferrarini M, Chiorazzi N. (2002) B-cell chronic lymphocytic leukemia cells express a surface membrane phenotype of activated, antigen-experienced B lymphocytes. Blood. 99: 4087-4093.
  • Gurrieri C, McGuire P, Zan H, Yan X-J, Cerutti A, Albesiano E, Allen SL, Vinciguerra V, Rai KR, Ferrarini M, Casali P, Chiorazzi N. (2002) Chronic lymphocytic leukemia B cells can undergo somatic hypermutation and intraclonal Ig VHDJH gene diversification. J Exp Med. 196:629-639.
  • Damle RN, Wasil T, Fais F, Ghiotto F, Valetto A, Allen SL, Buchbinder A, Budman D, Dittmar K, Kolitz J, Lichtman SM, Schulman P, Vinciguerra VP, Rai KR, Ferrarini M, Chiorazzi N. (1999) Ig V gene mutation status and CD38 expression as novel prognostic indicators in chronic lymphocytic leukemia. Blood. 94: 1840-1847.
  • Fais F, Ghiotto F, Hashimoto S, Sellars B, Allen SL, Schulman P, Vinciguerra VP, Rai K, Rassenti LZ, Kipps TJ, Dighiero G, Schroeder HW, Jr., Ferrarini M, Chiorazzi N. (1998) Chronic lymphocytic leukemia B cells express restricted sets of mutated and unmutated antigen receptors. J Clin Invest. 102: 1515-1525.
  • Fais F, Sellars B, Ghiotto F, Yan X-J, Dono M, Allen SL, Budman D, Dittmar K, Kolitz J, Lichtman SM, Schulman P, Schuster M, Vinciguerra VP, Rai K, Stevenson F, Gregersen PK, Ferrarini M, Chiorazzi N. (1996) Molecular examples of in vivo isotype class switching in IgM+ chronic lymphocytic leukemia B cells. J Clin Invest. 98: 1659-1666.
  • Hashimoto S, Wakai M, Allen SL, Lichtman SM, Schulman P, Vinciguerra VP, Ferrarini M, Silver J, Chiorazzi N. (1995) Somatic diversification and selection of immunoglobulin heavy and light chain variable region genes in IgG+, CD5+ chronic lymphocytic leukemia B cells. J Exp Med. 181: 1507-1517.
  • Sthoeger ZM, Wakai M, Tse DB, Vinciguerra VP, Allen SL, Budman DR, Lichtman SM, Schulman P, Weiselberg LR, Chiorazzi N. (1989) Production of autoantibodies by CD5-expressing B lymphocytes from patients with chronic lymphocytic leukemia. J Exp Med. 169: 255-268.

References

  1. ^ a b "Centers of Excellence". Feinstein Institute for Medical Research. Retrieved 1 August 2011.
  2. ^ "Faculty Profile: Nicholas Chi orazzi". Albert Einstein College of Medicine Directory. Retrieved 1 August 2011.
  3. ^ "B-cell chronic lymphocytic leukemia cells express a surface membrane phenotype of activated, antigen-experienced B lymphocytes". Blood. 99: 4087–4093. 2002. PMID 12010811. {{cite journal}}: |access-date= requires |url= (help)
  4. ^ Blood. 103: 375–382. 2004. PMID 14504108. {{cite journal}}: |access-date= requires |url= (help); Missing or empty |title= (help)
  5. ^ "Membership Lists". The American Society for Clinical Investigation. Retrieved 1 August 2011.
  6. ^ "Membership Directory". Association of American Physicians. Retrieved 1 August 2011.
  7. ^ "Annual Report 2000" (PDF). Lupus NY. Retrieved 1 August 2011.
  8. ^ "Founding Members Page". Association for Patient Oriented Research. Retrieved 1 August 2011.
  9. ^ "Editorial Board". Molecular Medicine. Retrieved 1 August 2011.

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