Role of macrophage NOX2 in alveolar homeostasis, hydroxyurea versus peginterferon alfa-2a in high-risk PV and ET, and the emerging PV treatment landscape

In this week’s episode we’ll discuss an undescribed role for NOX2 in maintaining lung homeostasis through suppression of alveolar macrophage activation. We’ll also cover results of a phase 3 randomized trial that compares the safety and efficacy of hydroxyurea and peginterferon alfa-2a in patients with high-risk polycythemia vera and essential thrombocythemia (or PV and ET, respectively). Finally, we’ll go more in depth on the emerging treatment landscape for PV, and the limits of current clinical trial endpoints.

Released May 12, 2022

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The articles highlighted in this episode are listed below:

• Macrophage NOX2 NADPH oxidase maintains alveolar homeostasis in mice

  Authors: Sourav Bhattacharya, Rachel A. Idol, Wei Yang, Jorge David Rojas Márquez, Yanan Li, Guangming Huang, Wandy L. Beatty, Jeffrey J. Atkinson, John H. Brumell, Juhi Bagaitkar, Jeffrey A. Magee, Mary C. Dinauer

• NOX2: is the best defense a good offense?

  Authors : Wen Xuan Zhang,Paul Kubes

• A randomized phase 3 trial of interferon-α vs hydroxyurea in polycythemia vera and essential thrombocythemia

  Authors: John Mascarenhas, Heidi E. Kosiorek, Josef T. Prchal, Alessandro Rambaldi, Dmitriy Berenzon, Abdulraheem Yacoub, Claire N. Harrison, Mary Frances McMullin, Alessandro M. Vannucchi, Joanne Ewing, Casey L. O'Connell, Jean-Jacques Kiladjian, Adam J. Mead, Elliott F. Winton, David S. Leibowitz, Valerio De Stefano, Murat O. Arcasoy, Craig M. Kessler, Rosalind Catchatourian, Damiano Rondelli, Richard T. Silver, Andrea Bacigalupo, Arnon Nagler, Marina Kremyanskaya, Max F. Levine, Juan E. Arango Ossa, Erin McGovern, Lonette Sandy, Mohamad E. Salama, Vesna Najfeld, Joseph Tripodi, Noushin Farnoud, Alexander V. Penson, Rona Singer Weinberg, Leah Price, Judith D. Goldberg, Tiziano Barbui, Roberto Marchioli, Gianni Tognoni, Raajit K. Rampal, Ruben A. Mesa, Amylou C. Dueck, Ronald Hoffman

• Treatment and clinical endpoints in polycythemia vera: seeking the best obtainable version of the truth

  Author: Jason Gotlib