Langerhans Cells (LC) are members of the dendritic cell family of professional antigen presenting cells, and play a key role in T-cell mediated immune responses in the skin. The principal investigator has developed a series of long term cultured cell lines (designated XS series) derived from neonatal mouse skin, which have characteristics suggesting they may be a useful model to study LC maturation that occurs in vitro as well as in vivo. During antigen-dependent interactions with T-helper cells, their XS cell lines undergo a number of phenotypic and functional changes such as the secretion of IL-1-beta, up regulation of B7-1 and B7-2 molecules, and lose their expression of growth factor receptors, lose their ability to proliferate, adhere to plastic and phagocytose microscopic particles. All of these changes may reflect some of the changes that LC undergo in culture during their maturation. The investigators' central hypothesis is that T-cell activation in vitro and in vivo can be regulated by modulating the terminal maturation of LC. They propose that such studies may reveal strategies to manipulate T-cell inflammatory responses. Their proposed aims are to delineate the important steps of LC maturation during antigen-dependent T-cell maturation.
The specific aims are:
Aim 1. To characterize the events that occur in LC upon antigen-dependent, T-cell induced maturation. XS cells and FACS purified LC will be co-cultured with antigen specific T-lymphocytes in the presence of appropriate antigen. The XS and LC will then be studied for change in cell surface phenotype, cytokine production (ELISA, RT-PCR and Northern blotting). Reversibility of maturation as well as ultimate fate (apoptosis). They will also study LC terminal maturation during contact hypersensitivity;
Aim 2. To study the molecular mechanisms of T-cell dependent terminal maturation. The investigators will study the mechanisms that trigger B7-1 and B7-2 expression, using antibodies to crosslink class II MHC and cytokines. They will also study the relationship between fibronectin metabolism and adhesive and phagocytic capacities;
Aim 3. To identify cytokines that prevent or promote the terminal differentiation of LC. An extensive panel of 24 cytokines will be tested for the ability to modulate the terminal differentiation of LC. The investigators will attempt to clone (expression cDNA cloning), the gene encoding the DC maturation inhibitory factors derived from stromal cells (designated NS cells;
and Aim 4. To regulate T-cell mediated skin disease by modulating the terminal differentiation of LC. They will attempt to modulate LC terminal maturation in vivo and their capacity to induce allergic contact dermatitis and to produce long term immunologic tolerance.

National Institute of Health (NIH)
National Institute of Arthritis and Musculoskeletal and Skin Diseases (NIAMS)
Research Project (R01)
Project #
Application #
Study Section
Special Emphasis Panel (ZRG4-OBM-1 (01))
Program Officer
Moshell, Alan N
Project Start
Project End
Budget Start
Budget End
Support Year
Fiscal Year
Total Cost
Indirect Cost
University of Texas Sw Medical Center Dallas
Schools of Medicine
United States
Zip Code
Geng, Shuo; Matsushima, Hironori; Okamoto, Takashi et al. (2013) Emergence, origin, and function of neutrophil-dendritic cell hybrids in experimentally induced inflammatory lesions in mice. Blood 121:1690-700
Frugé, Rachel E; Krout, Colleen; Lu, Ran et al. (2012) Real-time visualization of macromolecule uptake by epidermal Langerhans cells in living animals. J Invest Dermatol 132:609-14
Matsushima, Hironori; Ogawa, Yasushi; Miyazaki, Toru et al. (2010) Intravital imaging of IL-1beta production in skin. J Invest Dermatol 130:1571-80
Matsushima, Hironori; Takashima, Akira (2010) Bidirectional homing of Tregs between the skin and lymph nodes. J Clin Invest 120:653-6
Mayuzumi, Nobuyasu; Matsushima, Hironori; Takashima, Akira (2009) IL-33 promotes DC development in BM culture by triggering GM-CSF production. Eur J Immunol 39:3331-42
Matsushima, Hironori; Tanaka, Hiroaki; Mizumoto, Norikatsu et al. (2009) Identification of crassin acetate as a new immunosuppressant triggering heme oxygenase-1 expression in dendritic cells. Blood 114:64-73
Tanaka, Hiroaki; Matsushima, Hironori; Nishibu, Akiko et al. (2009) Dual therapeutic efficacy of vinblastine as a unique chemotherapeutic agent capable of inducing dendritic cell maturation. Cancer Res 69:6987-94
Mizumoto, Norikatsu; Tanaka, Hiroaki; Matsushima, Hironori et al. (2007) Colchicine promotes antigen cross-presentation by murine dendritic cells. J Invest Dermatol 127:1543-6
Ward, Brant R; Jester, James V; Nishibu, Akiko et al. (2007) Local thermal injury elicits immediate dynamic behavioural responses by corneal Langerhans cells. Immunology 120:556-72
Ogawa, Yasushi; Mizumoto, Norikatsu; Tanaka, Hiroaki et al. (2006) Identification of novel pharmacological activities of an antifungal agent, nystatin, to promote dendritic cell maturation. J Invest Dermatol 126:349-53

Showing the most recent 10 out of 27 publications