Browsing by Author "Bell, Maria C."

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    Ex vivo culture of mouse skin activates an interleukin 1 alpha-dependent inflammatory response
    (Wiley, 2020-01) Zhou, Hong-Ming; Slominski, Radomir M.; Seymour, Leroy J.; Bell, Maria C.; Dave, Priya; Atumonye, Joseph; Wright, William, III.; Dawes, Avery; Griesenauer, Brad; Paczesny, Sophie; Kaplan, Mark H.; Spandau, Dan F.; Turner, Matthew J.; Dermatology, School of Medicine
    Ex vivo culture of mouse and human skin causes an inflammatory response characterized by production of multiple cytokines. We used ex vivo culture of mouse tail skin specimens to investigate mechanisms of this skin culture-induced inflammatory response. Multiplex assays revealed production of interleukin 1 alpha (IL-1α), interleukin 1 beta (IL-1β), interleukin 6 (IL-6), chemokine C-X-C motif ligand 1 (CXCL1), granulocyte colony-stimulating factor (G-CSF) and granulocyte-macrophage colony-stimulating factor (GM-CSF) during skin culture, and quantitative PCR revealed transcripts for these proteins were also increased. Ex vivo cultures of skin from myeloid differentiation primary response 88 deficient mice (Myd88-/- ) demonstrated significantly reduced expression of transcripts for the aforementioned cytokines. The same result was observed with skin from interleukin 1 receptor type 1 deficient mice (Il1r1-/- ). These data suggested the IL-1R1/MyD88 axis is required for the skin culture-induced inflammatory response and led us to investigate the role of IL-1α and IL-1β (the ligands for IL-1R1) in this process. Addition of IL-1α neutralizing antibody to skin cultures significantly reduced expression of Cxcl1, Il6 and Csf3. IL-1β neutralization did not reduce levels of these transcripts. These studies suggest that IL-1α promotes the skin the culture-induced inflammatory response.
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    The effect of tumor mitotic rate on melanoma-specific survival: An analysis of 54,598 cases
    (Elsevier BV, 2023-07) Iqbal, Arslan; Bell, Maria C.; Merkel, Emily A.; Somani, Ally-Khan; Slaven, James E.; Que, Syril Keena T.; Dermatology, School of Medicine
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    Treatment of estrogen-induced dermatitis with omalizumab
    (Elsevier, 2019-05-25) Ocana, Jesus A.; Bell, Maria C.; Heskett, Jordan B.; Baker, William H.; Mousdicas, Nico; Turner, Matthew J.; Dermatology, IU School of Medicine
    In 1945, Drs Bernhard Zondek and Yehuda Bromberg demonstrated intradermal treatment with estrone and estradiol benzoate induced urticarial lesions in some patients.1 Fifty years later, Shelley et al,2 who introduced the concept of progesterone dermatitis several decades prior, defined estrogen dermatitis based on studies of 7 women with premenstrual flares of skin eruptions including papulovesicular, urticarial, or eczematous lesions or generalized pruritus. Previously described therapies for estrogen dermatitis include estrogen desensitization, tamoxifen, leuprolide, and oophorectomy.3 Here we report a case of estrogen-induced dermatitis successfully treated with omalizumab.