Rachael Lorenzo
VerifiedColumbia University · Nursing
Active 1998–2026
Research topics
- Immunology
- Pharmacology
- Cancer research
- Biology
- Medicine
Selected publications
Journal of the American Academy of Dermatology · 2026-04-01
articleSenior authorRacial and ethnic representation across acral lentiginous melanoma clinical trials
Research Square · 2025-11-28
preprintOpen accessSenior authorJournal of Investigative Dermatology · 2025-07-21
articleSenior authorCell Reports · 2025-06-17 · 5 citations
articleOpen access<h2>Summary</h2> Alopecia areata (AA) is an immune-mediated hair loss disorder characterized by the infiltration of immune cells, including clonally expanded CD8<sup>+</sup> T cells into lesional skin. To explore the link between CD8<sup>+</sup> T cell clonality and disease pathogenicity, we conducted single-cell RNA and T cell receptor (TCR) sequencing in the C3H/HeJ mouse model of AA. We analyzed T cells derived from skin and skin-draining lymph nodes to capture both the end-organ and the site of antigen priming and found striking hyper-expansion of T cell clones associated with disease onset. Using the hyperexpanded CD8<sup>+</sup> TCR sequences, we generated TCR retrogenic mice engineered to express a single clonotypic T cell population, applied CRISPR-Cas9 to engineer these TCR sequences within CD8<sup>+</sup> T cells, and performed depletion experiments to demonstrate that expanded CD8<sup>+</sup> T cell clones are sufficient to initiate disease, establishing a causal relationship between CD8<sup>+</sup> T cell clonality and pathogenicity in disease.
0799 Targeting UV-induced senescence in the skin microenvironment to prevent melanomagenesis
Journal of Investigative Dermatology · 2025-07-21
articleSenior authorTissue Procurement SOP - Discarded Human Skin v1
2024-03-05
preprintOpen accessThe purpose of this procedure is to provide instructions to clinicians, researchers and support staff for the collection and handling of human skin tissue. Specifically, this document describes the proper sample storage, delivery, de-identification, processing, and data collection of discarded human skin from human subjects during tissue procurement for the project 5UG3CA275686.
Journal of Investigative Dermatology · 2024-07-19
articleOpen accessSenior author10 X Visium Spatial Gene Expression - Fixed Frozen Tissue Processing with CytAssist v1
2024-03-18
preprintOpen accessHere we summarize the reccomendation released by 10X Genomics for processing fixed-frozen tissue sections while performing 10X Visium Spatial Gene Expression assay using the Visium CytAssist device. Please follow the link for the detailed official protocol on 10X Genomics website. https://cdn.10xgenomics.com/image/upload/v1680564483/support-documents/CG000662_Demonstrated_Protocol_VisiumCytAssist_FixedFrozen_H_E_RevA.pdf
525 Targeting CK2 activation as a therapeutic approach in acral melanoma
Journal of Investigative Dermatology · 2024-07-19
article1st authorCorresponding620 Elimination of therapy-induced senescent cells improves therapeutic outcomes in melanoma
Journal of Investigative Dermatology · 2024-07-19
article1st authorCorresponding
Frequent coauthors
- 23 shared
Angela M. Christiano
Columbia University Irving Medical Center
- 21 shared
Bin Zheng
South China Normal University
- 12 shared
Ping Yuan
Sun Yat-sen University
- 11 shared
Basil A. Horst
University of British Columbia
- 9 shared
Adam B. Glick
Pennsylvania State University
- 9 shared
Peter Canoll
Columbia University
- 9 shared
Chiaki Tsuge Ishida
University of Maryland, Baltimore County
- 9 shared
Georg Karpel‐Massler
Universität Ulm
Education
- 2000
Ph. D., Clinical Biology
Instituto Politécnico Nacional
- 1995
M.Sc., Immunology
Instituto Politécnico Nacional
- 1991
B.Sc., Facultad de Bioanalisis
Universidad Veracruzana
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