John A. D’Orazio

ORCID: 0000-0003-1008-6234
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About
Contact & Profiles
Research Areas
  • melanin and skin pigmentation
  • Skin Protection and Aging
  • Biochemical Analysis and Sensing Techniques
  • DNA Repair Mechanisms
  • CRISPR and Genetic Engineering
  • Cancer-related Molecular Pathways
  • Olfactory and Sensory Function Studies
  • Melanoma and MAPK Pathways
  • Economic and Financial Impacts of Cancer
  • Neuroblastoma Research and Treatments
  • Immune Cell Function and Interaction
  • Sarcoma Diagnosis and Treatment
  • Immunotherapy and Immune Responses
  • Cell Adhesion Molecules Research
  • Acute Lymphoblastic Leukemia research
  • Renal and related cancers
  • Childhood Cancer Survivors' Quality of Life
  • Hematological disorders and diagnostics
  • Computational Drug Discovery Methods
  • Cardiac tumors and thrombi
  • Antimicrobial Peptides and Activities
  • Dye analysis and toxicity
  • Extracellular vesicles in disease
  • Sirtuins and Resveratrol in Medicine
  • Plant Gene Expression Analysis

University of Kentucky
2016-2025

Markey Cancer Center
2015-2025

University of Kentucky HealthCare
2024

Mary Kay (United States)
2024

University of California, Merced
2018

The Graduate Center, CUNY
2009-2015

Molecular Oncology (United States)
2013

University of Cape Town
2013

Charles University
2013

Dana-Farber Cancer Institute
2007

We tested whether novel CYP11A1-derived vitamin D3- and lumisterol-hydroxyderivatives, including 1,25(OH)2D3, 20(OH)D3, 1,20(OH)2D3, 20,23(OH)2D3, 1,20,23(OH)3D3, lumisterol, 20(OH)L3, 22(OH)L3, 20,22(OH)2L3, 24(OH)L3, can protect against UVB-induced damage in human epidermal keratinocytes. Cells were treated with above compounds for 24 h, then subjected to UVB irradiation at doses of 25, 50, 75, or 200 mJ/cm2, examined oxidant formation, proliferation, DNA damage, the expression genes mRNA...

10.1016/j.redox.2019.101206 article EN cc-by-nc-nd Redox Biology 2019-04-20

Abstract Background Pediatric, adolescent, and young adult patients with cancer their caregivers are at high risk of financial toxicity, few evidence-based oncology legal navigation programs exist to address it. We tested the feasibility, acceptability, preliminary effectiveness Financial Insurance Navigation Assistance, a novel interdisciplinary intervention for pediatric, adolescent caregivers. Methods used single-arm feasibility acceptability trial design in pediatric hematology clinic...

10.1093/jncics/pkae025 article EN cc-by JNCI Cancer Spectrum 2024-03-27

Abstract The epidermis increases pigmentation and epidermal thickness in response to ultraviolet exposure protect against UV ‐associated carcinogenesis; however, the contribution of has been debated. In a humanized skin mouse model that maintains interfollicular melanocytes, we found forskolin, small molecule directly activates adenylyl cyclase promotes cAMP generation, up‐regulated eumelanin accumulation fair‐skinned melanocortin‐1‐receptor ( M c1r)‐defective animals. Forskolin‐induced was...

10.1111/exd.12012 article EN Experimental Dermatology 2012-08-20

Hull blackberries were purified using solid phase extraction to obtain anthocyanin-rich methanol fractions. This method concentrated phenolics and anthocyanins, recovering 97% 76% of the total yield in puree or powder extracts, respectively, which represented a 24-63 fold increase antioxidant capacity when compared with either water fraction original extract. The ability these fractions protect primary keratinocytes against UV-induced oxidative damage was assessed. Anthocyanin-rich derived...

10.1002/ptr.3510 article EN Phytotherapy Research 2011-05-12

Few evidence-based trainings exist on how to equip healthcare providers, particularly nurses, with the skills engage in cost of care conversations patients/caregivers mitigate impact cancer-related financial toxicity. This study evaluated a pilot training developed collaboration Triage Cancer® prepare oncology nurses identify and assist facing and/or legal barriers care. Ten pediatric completed pre/post-surveys behaviors related need screening, frequency comfort level answering questions,...

10.3390/curroncol32010033 article EN cc-by Current Oncology 2025-01-08

We identified a germline TP53 c.758C>T (p.T253I) mutation in the tumor suppressor gene pediatric adrenocortical carcinoma (ACC) patient. Characteristic to pathogenic p53 mutations, we observed upregulation of total protein levels patient’s ACC and concurrent suppression wild-type (WT) allele. As can be associated with Li-Fraumeni Syndrome (LFS) has not yet been linked LFS, sought characterize functionality T253I mutation. acquired p53-/- HEK293 cells stably transduced them GFP-tagged wild...

10.1101/2025.02.26.25322616 preprint EN cc-by medRxiv (Cold Spring Harbor Laboratory) 2025-02-27

Background: Malignant Ectomesenchymoma (MEM) is a rare, aggressive soft tissue neoplasm with both neuroectodermal and mesenchymal differentiation. Congenital cases are extremely uncommon, posing significant diagnostic therapeutic challenges. Case Presentation: We report case of full-term male neonate presenting large congenital neck mass respiratory distress at birth. Imaging revealed lobulated, heterogeneously enhancing in the left submandibular region effect on airway. Open biopsy gross...

10.3390/children12040480 article EN cc-by Children 2025-04-08

Introduction: Adolescent and young adult cancer survivors, especially racial/ethnic minorities rural residents are particularly vulnerable to financial toxicity due limited healthcare access, socioeconomic disparities, cultural/language barriers. These social determinants of health compound hardship contribute poor transitions from pediatric care, leading worse outcomes higher mortality rates.Methods: Our cross-sectional survey study examined racial (Black vs White) geographic (rural urban)...

10.1177/10732748251339251 article EN PubMed 2025-05-06

Blunted melanocortin 1 receptor (MC1R) signaling promotes melanocyte genomic instability in part by attenuating cAMP-mediated DNA repair responses, particularly nucleotide excision (NER), which recognizes and clears mutagenic photodamage. cAMP-enhanced NER is mediated interactions between the ataxia telangiectasia-mutated Rad3-related (ATR) xeroderma pigmentosum complementation group A (XPA) proteins. We now report a critical role for sirtuin (SIRT1) regulating ATR-mediated phosphorylation...

10.1074/jbc.ra118.003940 article EN cc-by Journal of Biological Chemistry 2018-10-16

We previously reported that topical application of forskolin to the skin fair-skinned MC1R-defective mice with epidermal melanocytes resulted in accumulation eumelanin epidermis and was highly protective against UV-mediated cutaneous injury. In this report, we describe long-term effects chronic treatment animal model. Forskolin-induced production persisted through 3 months daily applications, forskolin-induced remained UV damage as assessed by minimal erythematous dose (MED). No obvious...

10.1111/j.1755-148x.2008.00536.x article EN Pigment Cell & Melanoma Research 2008-12-12

Staphylococcal enterotoxin B (SEB) is known for its effects on T lymphocytes; the mechanism of this activation well studied. Although it anticipated that there would be other cells in milieu, mechanisms non-T immune are not understood. This report examines SEB human NK cells. Incubation PBMC with augmented cytotoxicity against NK-sensitive targets K562 and Molt-4 induced activity NK-resistant targets, Mel-30 Raji. The degree superantigen-augmented killer (SAK) by treatment correlated...

10.4049/jimmunol.154.3.1014 article EN The Journal of Immunology 1995-02-01
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