Publications by Sachiko Hirosue

Coupled As and Mn Redox Transformations in an Fe(0) Electrocoagulation System: Competition for Reactive Oxidants and Sorption Sites

Sachiko Hirosue, Jasquelin Peña, Nathalie Manetti, Victor Carle Adrien Boureau

Iron electrocoagulation (EC) can be used for the decentralized treatment of arsenic(As)-contaminated groundwater. Iron EC involves the electrolytic dissolution of an Fe(0) electrode to Fe(II). This process produces reactive oxidants, which oxidize As(III) ...

AMER CHEMICAL SOC2020

Adjuvant-free immunization with infective filarial larvae as lymphatic homing antigen carriers

Melody Swartz, Alexandre de Titta, Witold Waldemar Kilarski, Sachiko Hirosue, Marcela Rincón-Restrepo, Esra Güç, David Scott Wilson

Controlled infection with intestinal nematodes has therapeutic potential for preventing the symptoms of allergic and autoimmune diseases. Here, we engineered larvae of the filarial nematode Litomosoides sigmodontis as a vaccine strategy to induce adaptive ...

Nature Research2020

Antigens reversibly conjugated to a polymeric glyco-adjuvant induce protective humoral and cellular immunity

Jeffrey Alan Hubbell, Melody Swartz, Sachiko Hirosue, Laura Jeanbart, Xavier Fredy René Quaglia-Thermes, David Scott Wilson, Giacomo Olimpio Diaceri, Maria Anna Sofia Broggi, Michal Mateusz Raczy, Ruyi Wang

Fully effective vaccines for complex infections must elicit a diverse repertoire of antibodies (humoral immunity) and CD8+ T-cell responses (cellular immunity). Here, we present a synthetic glyco-adjuvant named p(Man-TLR7), which, when conjugated to antige ...

NATURE PUBLISHING GROUP2019

Synthetically glycosylated antigens induce antigen-specific tolerance and prevent the onset of diabetes

Jeffrey Alan Hubbell, Sachiko Hirosue, Xavier Fredy René Quaglia-Thermes, Martina Damo, David Scott Wilson, Giacomo Olimpio Diaceri, Michal Mateusz Raczy

Homeostatic antigen presentation by hepatic antigen-presenting cells, which results in tolerogenic T-cell education, could be exploited to induce antigen-specific immunological tolerance. Here we show that antigens modified with polymeric forms of either N ...

2019

Toll-like receptor 8 agonist nanoparticles mimic immunomodulating effects of the live BCG vaccine and enhance neonatal innate and adaptive immune responses

Jeffrey Alan Hubbell, Melody Swartz, Alexandre de Titta, Sachiko Hirosue, Daniel Kenneth Bonner

Background: Newborns display distinct immune responses, leaving them vulnerable to infections and impairing immunization. Targeting newborn dendritic cells (DCs), which integrate vaccine signals into adaptive immune responses, might enable development of a ...

2017

Oxidation-sensitive polymersomes as vaccine nanocarriers enhance humoral responses against Lassa virus envelope glycoprotein

Jeffrey Alan Hubbell, Melody Swartz, Sachiko Hirosue, Marcela Rincón-Restrepo, Clara Galan Navarro, Stefan Kunz

Lassa virus (LASV) causes severe hemorrhagic fever with high mortality, yet no vaccine currently exists. Antibodies targeting viral attachment proteins are crucial for protection against many viral infections. However, the envelope glycoprotein (GP) 1 of L ...

Academic Press Inc Elsevier Science2017

Vaccine nanocarriers: Coupling intracellular pathways and cellular biodistribution to control CD4 vs CD8 T cell responses

Jeffrey Alan Hubbell, Melody Swartz, Sachiko Hirosue, Marcela Rincón-Restrepo, Sylvie Hauert, Daniel Kenneth Bonner, Edward Allen Phelps, Aaron Mayer

Nanoparticle delivery systems are known to enhance the immune response to soluble antigens (Ags) and are thus a promising tool for the development of new vaccines. Our laboratory has engineered two different nanoparticulate systems in which Ag is either en ...

Elsevier Sci Ltd2017

Primary human and rat beta cells release the intracellular autoantigens GAD65, IA-2 and proinsulin in exosomes together with cytokine-induced enhancers of immunity

Jeffrey Alan Hubbell, Melody Swartz, Miriella Carmela Pasquier, Davide Demurtas, Sachiko Hirosue, Romain Hamelin, Steinunn Baekkeskov Hanahan, Michele De Palma, Edward Allen Phelps, Chiara Cianciaruso

The target autoantigens in several organ-specific autoimmune diseases, including type 1 diabetes (T1D), are intracellular membrane proteins, whose initial encounter with the immune system is poorly understood. Here we propose a new model for how these prot ...

American Diabetes Association2017

Modes of antigen presentation by lymph node stromal cells and their immunological implications

Sachiko Hirosue

Antigen presentation is no longer the exclusive domain of cells of hematopoietic origin. Recent works have demonstrated that lymph node stromal cell (LNSC) populations, such as fibroblastic reticular cells, lymphatic and blood endothelial cells, not only p ...

Frontiers Media Sa2015

Steady-State Antigen Scavenging, Cross-Presentation, and CD8(+) T Cell Priming: A New Role for Lymphatic Endothelial Cells

Melody Swartz, Patricia Corthésy Henrioud, Sachiko Hirosue, Marcela Rincón-Restrepo, Amanda Waite Lund, Efthymia Vokali, Vidya Raghavan

Until recently, the known roles of lymphatic endothelial cells (LECs) in immune modulation were limited to directing immune cell trafficking and passively transporting peripheral Ags to lymph nodes. Recent studies demonstrated that LECs can directly suppre ...

American Association of Immunologists ; Oxford University Press2014

Peripherally Administered Nanoparticles Target Monocytic Myeloid Cells, Secondary Lymphoid Organs and Tumors in Mice

Jeffrey Alan Hubbell, Melody Swartz, Alexandre de Titta, Stephane Kontos, Iraklis Kourtis, Sachiko Hirosue

Nanoparticles have been extensively developed for therapeutic and diagnostic applications. While the focus of nanoparticle trafficking in vivo has traditionally been on drug delivery and organ-level biodistribution and clearance, recent work in cancer biol ...

Public Library of Science2013

Nanpoarticle based intradermal formulation targeting DC skin subsets to increase vaccine potency against HIV-1

Jeffrey Alan Hubbell, Sachiko Hirosue

Nature Publishing Group2013

Polymer micelles with pyridyl disulfide-coupled antigen travel through lymphatics and show enhanced cellular responses following immunization

Jeffrey Alan Hubbell, Melody Swartz, Conlin O'Neil, Jackson Eby, Sachiko Hirosue, Karen Dane

Poly(ethylene glycol)-stabilized poly(propylene sulfide) core (PEG-PPS) nanoparticles (NPs) smaller than 50 nm efficiently travel to draining lymph nodes and interact with antigen-presenting cells (APCs) to induce potent immune responses following intrader ...

Elsevier Sci Ltd2012

VEGF-C Promotes Immune Tolerance in B16 Melanomas and Cross-Presentation of Tumor Antigen by Lymph Node Lymphatics

Amine Issa, Melody Swartz, Sachiko Hirosue, Susan Thomas, Amanda Waite Lund, Vidya Raghavan

Tumor expression of the lymphangiogenic factor VEGF-C is correlated with metastasis and poor prognosis, and although VEGF-C enhances transport to the draining lymph node (dLN) and antigen exposure to the adaptive immune system, its role in tumor immunity r ...

Elsevier2012

Engineering Approaches to Immunotherapy

Jeffrey Alan Hubbell, Melody Swartz, Sachiko Hirosue

As the science of immunology grows increasingly mechanistic, motivation for developing quantitative, design-based engineering approaches has also evolved, both for therapeutic interventions and for elucidating immunological pathways in human disease. This ...

American Association for the Advancement of Science2012

Altered immune responses in mice without initial dermal lymphatics

Melody Swartz, Joseph Rutkowski, Sachiko Hirosue, Susan Thomas

Karger2009