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| image_size =
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| caption =
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| birth_date = July 31, 1988
| birth_date = July 31, 1961
| birth_place = St. Louis, Missouri, U.S.
| birth_place = St. Louis, Missouri, U.S.
| fields = Neuroscience
| fields = Neuroscience
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== Awards and honors ==
== Awards and honors ==

* 1995 Paul Beeson Physician Faculty Scholar Award ([[American Federation for Aging Research]])<ref>{{Cite web|last=|first=|date=1994|url=https://cspcs.sanford.duke.edu/sites/default/files/descriptive/aging_research_program.pdf|url-status=live|archive-url=https://web.archive.org/web/20110809113323/http://cspcs.sanford.duke.edu/sites/default/files/descriptive/aging_research_program.pdf |archive-date=2011-08-09 |access-date=December 30, 2020|website=cspcs.sanford.duke.edu/}}</ref>
* 1995 Paul Beeson Physician Faculty Scholar Award ([[American Federation for Aging Research]])<ref>{{Cite web|last=|first=|date=1994|url=https://cspcs.sanford.duke.edu/sites/default/files/descriptive/aging_research_program.pdf|url-status=live|archive-url=https://web.archive.org/web/20110809113323/http://cspcs.sanford.duke.edu/sites/default/files/descriptive/aging_research_program.pdf |archive-date=2011-08-09 |access-date=December 30, 2020|website=cspcs.sanford.duke.edu/}}</ref>
* 2001 Charlotte and Paul Hagemann endowed Professorship, Dept. Neurology, Washington University <ref>{{Cite web|last=|first=|date=2001|title=Holtzman named the Hagemann Professor of neurology|url=https://adrcpress.wustl.edu/UNDATED/WU%20REC%20HAGEMANN%20PROFESS%20OF%20NEURO%20&%20AAAB.pdf|archive-url=|archive-date=|access-date=December 30, 2020|website=adrcpress.wustl.edu/}}</ref>
* 2001 Charlotte and Paul Hagemann endowed Professorship, Dept. Neurology, Washington University <ref>{{Cite web|last=|first=|date=2001|title=Holtzman named the Hagemann Professor of neurology|url=https://adrcpress.wustl.edu/UNDATED/WU%20REC%20HAGEMANN%20PROFESS%20OF%20NEURO%20&%20AAAB.pdf|archive-url=|archive-date=|access-date=December 30, 2020|website=adrcpress.wustl.edu/}}</ref>
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* Yanamandra K, Kfoury N, Jiang H, Mahan TE, Ma S, Maloney SE, Wozniak DF, Marc, Diamond MI, '''Holtzman DM'''. Anti-tau antibodies that block tau aggregate seeding in vitro markedly decrease pathology and improve cognition in vivo. Neuron 2013 Oct 16;80(2):402-14. PMCID: PMC3924573<ref>{{Cite journal|last1=Yanamandra|first1=Kiran|last2=Kfoury|first2=Najla|last3=Jiang|first3=Hong|last4=Mahan|first4=Thomas E.|last5=Ma|first5=Shengmei|last6=Maloney|first6=Susan E.|last7=Wozniak|first7=David F.|last8=Diamond|first8=Marc I.|last9=Holtzman|first9=David M.|date=2013-10-16|title=Anti-tau antibodies that block tau aggregate seeding in vitro markedly decrease pathology and improve cognition in vivo|journal=Neuron|volume=80|issue=2|pages=402–414|doi=10.1016/j.neuron.2013.07.046|issn=1097-4199|pmc=3924573|pmid=24075978}}</ref>
* Yanamandra K, Kfoury N, Jiang H, Mahan TE, Ma S, Maloney SE, Wozniak DF, Marc, Diamond MI, '''Holtzman DM'''. Anti-tau antibodies that block tau aggregate seeding in vitro markedly decrease pathology and improve cognition in vivo. Neuron 2013 Oct 16;80(2):402-14. PMCID: PMC3924573<ref>{{Cite journal|last1=Yanamandra|first1=Kiran|last2=Kfoury|first2=Najla|last3=Jiang|first3=Hong|last4=Mahan|first4=Thomas E.|last5=Ma|first5=Shengmei|last6=Maloney|first6=Susan E.|last7=Wozniak|first7=David F.|last8=Diamond|first8=Marc I.|last9=Holtzman|first9=David M.|date=2013-10-16|title=Anti-tau antibodies that block tau aggregate seeding in vitro markedly decrease pathology and improve cognition in vivo|journal=Neuron|volume=80|issue=2|pages=402–414|doi=10.1016/j.neuron.2013.07.046|issn=1097-4199|pmc=3924573|pmid=24075978}}</ref>
* Kang JE, Lim MM, Bateman RJ, Lee JJ, Smyth LP, Cirrito JR, Fujiki N, Nishino S, '''Holtzman DM'''. (2009) Amyloid- β  Dynamics Are Regulated by Orexin and the Sleep-Wake Cycle. Science. 326:1005-1008. PMCID:PMC2789838<ref>{{Cite journal|last1=Kang|first1=Jae-Eun|last2=Lim|first2=Miranda M.|last3=Bateman|first3=Randall J.|last4=Lee|first4=James J.|last5=Smyth|first5=Liam P.|last6=Cirrito|first6=John R.|last7=Fujiki|first7=Nobuhiro|last8=Nishino|first8=Seiji|last9=Holtzman|first9=David M.|date=2009-11-13|title=Amyloid-beta dynamics are regulated by orexin and the sleep-wake cycle|journal=Science|volume=326|issue=5955|pages=1005–1007|doi=10.1126/science.1180962|issn=1095-9203|pmc=2789838|pmid=19779148|bibcode=2009Sci...326.1005K}}</ref>
* Kang JE, Lim MM, Bateman RJ, Lee JJ, Smyth LP, Cirrito JR, Fujiki N, Nishino S, '''Holtzman DM'''. (2009) Amyloid- β  Dynamics Are Regulated by Orexin and the Sleep-Wake Cycle. Science. 326:1005-1008. PMCID:PMC2789838<ref>{{Cite journal|last1=Kang|first1=Jae-Eun|last2=Lim|first2=Miranda M.|last3=Bateman|first3=Randall J.|last4=Lee|first4=James J.|last5=Smyth|first5=Liam P.|last6=Cirrito|first6=John R.|last7=Fujiki|first7=Nobuhiro|last8=Nishino|first8=Seiji|last9=Holtzman|first9=David M.|date=2009-11-13|title=Amyloid-beta dynamics are regulated by orexin and the sleep-wake cycle|journal=Science|volume=326|issue=5955|pages=1005–1007|doi=10.1126/science.1180962|issn=1095-9203|pmc=2789838|pmid=19779148|bibcode=2009Sci...326.1005K}}</ref>



== References ==
== References ==
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Latest revision as of 22:54, 13 September 2024

David M. Holtzman
BornJuly 31, 1961
St. Louis, Missouri, U.S.
Alma materNorthwestern University
University of California, San Francisco
Known forMechanisms underlying neurodegeneration, including role of apoE, amyloid beta, tau, and TREM2 in pathogenesis of Alzheimer’s disease
AwardsPaul Beeson Physician Faculty Scholar Award, Potamkin Award for Alzheimer’s Disease Research, MetLife Award for Alzheimer’s Disease, Elected Fellow of AAAS, Member, National Academy of Medicine
Scientific career
FieldsNeuroscience
InstitutionsWashington University School of Medicine

David M. Holtzman is an American physician-scientist known for his work exploring the biological mechanisms underlying neurodegeneration, with a focus on Alzheimer's disease. Holtzman is former Chair of the Department of Neurology, Scientific Director of the Hope Center for Neurological Disorders, and associate director of the Knight Alzheimer's Disease Research Center at Washington University School of Medicine in St. Louis, Missouri. Holtzman's lab is known for examining how apoE4 contributes to Alzheimer's disease as well as how sleep modulates amyloid beta in the brain. His work has also examined the contributions of microglia to AD pathology.

Early life and education

[edit]

Holtzman was born in St. Louis, Missouri.[1] Holtzman pursued a six-year combined Bachelor's and Medical Degree at Northwestern University in Evanston, Illinois. He obtained his Bachelors of Science in Medical Education in 1983 and his Medical Degree in 1985.[1]

After completing his MD, Holtzman pursued a residency in Neurology at the University of California, San Francisco (UCSF) from 1985 to 1989.[2] Following his residency, he completed his postdoctoral research under the mentorship of William C. Mobley at UCSF from 1989 to 1994.[2] His postdoctoral research focused on developing mouse models of neonatal stroke and neurodegeneration as well as elucidating the role neurotrophins play in modulating neuronal activity.[3][4]

Career and research

[edit]

In 1994, Holtzman became an assistant professor at Washington University in St. Louis. By 2002, Holtzman was promoted to Associate Professor of Neurology, and by 2003, he was promoted to Full Professor in the Departments of Neurology and Developmental Biology at Washington University.[5] In 2003, he also became the Chairman of the Department of Neurology, and in 2015 he became the Scientific Director of the Hope Center for Neurological Disorders.[5]

Holtzman is currently Professor of Neurology, scientific director of the Hope Center for Neurological Disorders, and director of the Knight Alzheimer's Disease Research Center at Washington University School of Medicine. He stepped down from his position as department chairman in 2021.[6]  The Holtzman Lab is dedicated to exploring the biological mechanisms underlying neurodegeneration.[7] Holtzman's work has studied mechanisms by which apoE, amyloid beta, and tau metabolism are implicated in neurodegeneration in the context of Alzheimer's disease.[7] Holtzman is also a co-founder of C2N Diagnostics, LLC. Holtzman and his former trainee, Randall Bateman, developed C2N Diagnostics in 2007 with the goal of increasing the understanding the molecular mechanisms underlying neurological diseases through measurements of concentration and metabolism of CNS-derived biomolecules.[8][9]

Apolipoprotein E and Alzheimer's disease

[edit]

Holtzman and his lab have examined the role of apoE in AD pathogenesis.[10] Both the ε4 and ε2 APOE alleles increase the risk of developing AD, with an approximately 12-fold AD risk for those with two copies of ε4 allele.[7] Holtzman's Lab has shown that apoE contributes to AD susceptibility and pathogenesis by its modulation of Aβ clearance and aggregation. Specifically, they have found that different isoforms of apoE have differential effects on soluble Aβ clearance.[11]

Immunotherapeutic approaches for Alzheimer's disease

[edit]

In 2001, Holtzman and his team published a paper showing that administration of the anti-Aβ antibody (m266) in mice changes the equilibrium of Aβ across the CNS and blood plasma leading to increased Aβ sequestration in plasma which reduces the burden of Aβ in the brain.[12] This antibody, m266, was licensed to Eli Lilly and humanized.  Using the humanized anti-Aβ antibody, Solanezumab, Eli Lilly began a series of clinical trials to discern the therapeutic potential of anti-Aβ immunotherapy in humans with AD. Results of these trials were disappointing. Solanezunmab treatment did not meet the primary endpoint of the clinical trials in mild AD, however, a clinical trial known as A4 in “presymptomatic” AD is still ongoing.[13] Holtzman's lab has also focused on anti-tau immunotherapeutic approaches to treating AD, and this approach is now in phase II clinical trials following licensing of an anti-tau antibody his lab developed with AbbVie.[14]

Amyloid and Synaptic Activity

[edit]

Along with other groups, Holtzman and his team were able to discern that synaptic activity influences Aβ levels in the brain.[15] They also found that Aβ deposition is brain region dependent, specifically correlating with regions involved in the default mode network. These findings suggest that increased metabolic demands and activity levels lead to higher soluble Aβ loads in these brain regions involved in the default mode network.[16]

Sleep and Alzheimer’s Disease

[edit]

The Holtzman lab has made important advances in our understanding of how sleep cycles influence Aβ concentrations in the brain interstitial fluid and Cerebrospinal Fluid. They found that Aβ and tau are higher during wakefulness and lower during sleep, and that these differences in Aβ and tau dynamics are driven by synaptic activity differences and orexin signaling.[17][18] Following this work, Holtzman and his team found that once Aβ has been deposited, it results in sleep disruptions and further Aβ aggregation in a positive feedback loop promoting increased pathology.[17] They also found that sleep cycles are implicated in the release of extracellular tau and that less NREM sleep is linked to increased tau pathology.[19]

Awards and honors

[edit]

Select publications

[edit]
  • Holth JK, Fritschi SK, Wang C, Pedersen NP, Cirrito JR, Mahan TE, Finn MB, Manis M, Geerling JC, Fuller PM, Lucey BP, Holtzman DM. The sleep-wake cycle regulates brain interstitial fluid tau in mice and CSF tau in humans. Science. 2019 Feb 22;363(6429):880-884.[18]
  • Leyns CEG, Gratuze M, Narasimhan S, Jain N, Koscal LJ, Jiang H, Manis M, Colonna M, Lee VMY, Ulrich JD, Holtzman DM. TREM2 function impedes tau seeding in neuritic plaques. Nat Neurosci. 2019 Aug;22(8):1217-1222. doi: 10.1038/s41593-019-0433-0. PMCID:PMC6660358[26]
  • Liao F, Li A, Xiong M, Bien-Ly N, Jiang H, Zhang Y, Finn MB, Hoyle R, Keyser J, Lefton KB, Robinson GO, Serrano JR, Silverman AP, Guo JL, Getz J, Henne K, Leyns CE, Gallardo G, Ulrich JD, Sullivan PM, Lerner EP, Hudry E, Sweeney ZK, Dennis MS, Hyman BT, Watts RJ, Holtzman DM. (2018) Targeting of nonlipidated, aggregated apoE with antibodies inhibits amyloid accumulation. J Clin Invest. 209(12):2149-56. PMCID: PMC3501350
  • Yanamandra K, Kfoury N, Jiang H, Mahan TE, Ma S, Maloney SE, Wozniak DF, Marc, Diamond MI, Holtzman DM. Anti-tau antibodies that block tau aggregate seeding in vitro markedly decrease pathology and improve cognition in vivo. Neuron 2013 Oct 16;80(2):402-14. PMCID: PMC3924573[27]
  • Kang JE, Lim MM, Bateman RJ, Lee JJ, Smyth LP, Cirrito JR, Fujiki N, Nishino S, Holtzman DM. (2009) Amyloid- β  Dynamics Are Regulated by Orexin and the Sleep-Wake Cycle. Science. 326:1005-1008. PMCID:PMC2789838[28]

References

[edit]
  1. ^ a b "Featured Researcher: David Michael Holtzman, M.D." Cure Alzheimer's Fund. 2015-11-25. Retrieved 2020-12-30.
  2. ^ a b c "195: Dr. David Holtzman: Untangling the Mechanisms and Mysteries of Alzheimer's Disease". People Behind the Science Podcast. 2014-12-19. Retrieved 2020-12-30.
  3. ^ Holtzman, D. M.; Li, Y. W.; DeArmond, S. J.; McKinley, M. P.; Gage, F. H.; Epstein, C. J.; Mobley, W. C. (1992-02-15). "Mouse model of neurodegeneration: atrophy of basal forebrain cholinergic neurons in trisomy 16 transplants". Proceedings of the National Academy of Sciences of the United States of America. 89 (4): 1383–1387. Bibcode:1992PNAS...89.1383H. doi:10.1073/pnas.89.4.1383. ISSN 0027-8424. PMC 48455. PMID 1741393.
  4. ^ Holtzman, D. M.; Li, Y.; Parada, L. F.; Kinsman, S.; Chen, C. K.; Valletta, J. S.; Zhou, J.; Long, J. B.; Mobley, W. C. (September 1992). "p140trk mRNA marks NGF-responsive forebrain neurons: evidence that trk gene expression is induced by NGF". Neuron. 9 (3): 465–478. doi:10.1016/0896-6273(92)90184-f. ISSN 0896-6273. PMID 1524827. S2CID 25740693.
  5. ^ a b "Scientific Advisors". C2N Diagnostics. Archived from the original on 2021-03-02. Retrieved 2020-12-30.
  6. ^ "Charles F. and Joanne Knight ADRC at Washington University". knightadrc.wustl.edu. Retrieved 2020-12-30.
  7. ^ a b c "About the Lab". neuro.wustl.edu. Retrieved 2020-12-30.
  8. ^ "Our Company". C2N Diagnostics. Archived from the original on 2020-06-13. Retrieved 2020-12-30.
  9. ^ Shi, Yang; Yamada, Kaoru; Liddelow, Shane Antony; Smith, Scott T.; Zhao, Lingzhi; Luo, Wenjie; Tsai, Richard M.; Spina, Salvatore; Grinberg, Lea T.; Rojas, Julio C.; Gallardo, Gilbert (September 28, 2017). "ApoE4 markedly exacerbates tau-mediated neurodegeneration in a mouse model of tauopathy". Nature. 549 (7673): 523–527. Bibcode:2017Natur.549..523S. doi:10.1038/nature24016. hdl:10161/15694. ISSN 1476-4687. PMC 5641217. PMID 28959956.
  10. ^ "David Holtzman, MD | ANA 2019". 2019.myana.org. Archived from the original on 2021-01-17. Retrieved 2020-12-30.
  11. ^ Kim, Jungsu; Castellano, Joseph M.; Jiang, Hong; Basak, Jacob M.; Parsadanian, Maia; Pham, Vi; Mason, Stephanie M.; Paul, Steven M.; Holtzman, David M. (2009-12-10). "Overexpression of low-density lipoprotein receptor in the brain inhibits amyloid deposition and increases extracellular A beta clearance". Neuron. 64 (5): 632–644. doi:10.1016/j.neuron.2009.11.013. ISSN 1097-4199. PMC 2787195. PMID 20005821.
  12. ^ DeMattos, Ronald B.; Bales, Kelly R.; Cummins, David J.; Dodart, Jean-Cosme; Paul, Steven M.; Holtzman, David M. (2001-07-17). "Peripheral anti-Aβ antibody alters CNS and plasma Aβ clearance and decreases brain Aβ burden in a mouse model of Alzheimer's disease". Proceedings of the National Academy of Sciences of the United States of America. 98 (15): 8850–8855. Bibcode:2001PNAS...98.8850D. doi:10.1073/pnas.151261398. ISSN 0027-8424. PMC 37524. PMID 11438712.
  13. ^ "Clinical Trial of Solanezumab for Older Individuals Who May be at Risk for Memory Loss - Full Text View - ClinicalTrials.gov". clinicaltrials.gov. Retrieved 2020-12-30.
  14. ^ Tan, Victoria. "ABBV-8E12 - Alzheimer's News Today". Retrieved 2020-12-30.
  15. ^ Cirrito, John R.; Yamada, Kelvin A.; Finn, Mary Beth; Sloviter, Robert S.; Bales, Kelly R.; May, Patrick C.; Schoepp, Darryle D.; Paul, Steven M.; Mennerick, Steven; Holtzman, David M. (2005-12-22). "Synaptic activity regulates interstitial fluid amyloid-beta levels in vivo". Neuron. 48 (6): 913–922. doi:10.1016/j.neuron.2005.10.028. ISSN 0896-6273. PMID 16364896. S2CID 117506.
  16. ^ Bero, Adam W.; Yan, Ping; Roh, Jee Hoon; Cirrito, John R.; Stewart, Floy R.; Raichle, Marcus E.; Lee, Jin-Moo; Holtzman, David M. (June 2011). "Neuronal activity regulates the regional vulnerability to amyloid-β deposition". Nature Neuroscience. 14 (6): 750–756. doi:10.1038/nn.2801. ISSN 1546-1726. PMC 3102784. PMID 21532579.
  17. ^ a b Kang, Jae-Eun; Lim, Miranda M.; Bateman, Randall J.; Lee, James J.; Smyth, Liam P.; Cirrito, John R.; Fujiki, Nobuhiro; Nishino, Seiji; Holtzman, David M. (2009-11-13). "Amyloid-beta dynamics are regulated by orexin and the sleep-wake cycle". Science. 326 (5955): 1005–1007. Bibcode:2009Sci...326.1005K. doi:10.1126/science.1180962. ISSN 1095-9203. PMC 2789838. PMID 19779148.
  18. ^ a b Holth, Jerrah K.; Fritschi, Sarah K.; Wang, Chanung; Pedersen, Nigel P.; Cirrito, John R.; Mahan, Thomas E.; Finn, Mary Beth; Manis, Melissa; Geerling, Joel C.; Fuller, Patrick M.; Lucey, Brendan P. (February 22, 2019). "The sleep-wake cycle regulates brain interstitial fluid tau in mice and CSF tau in humans". Science. 363 (6429): 880–884. Bibcode:2019Sci...363..880H. doi:10.1126/science.aav2546. ISSN 1095-9203. PMC 6410369. PMID 30679382.
  19. ^ "New Research Shows How Sleep Could Ward Off Alzheimer's Disease". Time. Retrieved 2020-12-30.
  20. ^ cspcs.sanford.duke.edu/. 1994 https://cspcs.sanford.duke.edu/sites/default/files/descriptive/aging_research_program.pdf. Archived (PDF) from the original on 2011-08-09. Retrieved December 30, 2020. {{cite web}}: Missing or empty |title= (help)
  21. ^ "Holtzman named the Hagemann Professor of neurology" (PDF). adrcpress.wustl.edu/. 2001. Retrieved December 30, 2020.
  22. ^ a b "David M. Holtzman, MD". www.cecentral.com. Retrieved 2020-12-30.
  23. ^ "New AAAS Fellows Recognized for Their Contributions to Advancing Science | American Association for the Advancement of Science". www.aaas.org. Retrieved 2020-12-30.
  24. ^ "Message from ANA President Dr. David Holtzman | American Neurological Association (ANA)". myana.org. Retrieved 2020-12-30.
  25. ^ "43 Members of National Academies of Sciences, Engineering, and Medicine Elected to 2017 Class of National Academy of Inventors Fellows". www8.nationalacademies.org. Retrieved 2020-12-30.
  26. ^ Leyns, Cheryl E. G.; Gratuze, Maud; Narasimhan, Sneha; Jain, Nimansha; Koscal, Lauren J.; Jiang, Hong; Manis, Melissa; Colonna, Marco; Lee, Virginia M. Y.; Ulrich, Jason D.; Holtzman, David M. (August 2019). "TREM2 function impedes tau seeding in neuritic plaques". Nature Neuroscience. 22 (8): 1217–1222. doi:10.1038/s41593-019-0433-0. ISSN 1546-1726. PMC 6660358. PMID 31235932.
  27. ^ Yanamandra, Kiran; Kfoury, Najla; Jiang, Hong; Mahan, Thomas E.; Ma, Shengmei; Maloney, Susan E.; Wozniak, David F.; Diamond, Marc I.; Holtzman, David M. (2013-10-16). "Anti-tau antibodies that block tau aggregate seeding in vitro markedly decrease pathology and improve cognition in vivo". Neuron. 80 (2): 402–414. doi:10.1016/j.neuron.2013.07.046. ISSN 1097-4199. PMC 3924573. PMID 24075978.
  28. ^ Kang, Jae-Eun; Lim, Miranda M.; Bateman, Randall J.; Lee, James J.; Smyth, Liam P.; Cirrito, John R.; Fujiki, Nobuhiro; Nishino, Seiji; Holtzman, David M. (2009-11-13). "Amyloid-beta dynamics are regulated by orexin and the sleep-wake cycle". Science. 326 (5955): 1005–1007. Bibcode:2009Sci...326.1005K. doi:10.1126/science.1180962. ISSN 1095-9203. PMC 2789838. PMID 19779148.
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