The RAGE Pathway in Skin Pathology Development: A Comprehensive Review of Its Role and Therapeutic Potential

Marcin Radziszewski1,2, Ryszard Galus1, Krzysztof Łuszczyński1,3

  • 1Department of Histology and Embryology, Medical University of Warsaw, 02-004 Warsaw, Poland.

Insights

The receptor for advanced glycation end-products (RAGE) plays a key role in skin diseases by driving inflammation and tissue remodeling. Targeting RAGE pathways offers potential new treatments for conditions like psoriasis and atopic dermatitis.

Area of Science:

  • Dermatology
  • Immunology
  • Molecular Biology

Background:

  • The receptor for advanced glycation end-products (RAGE) is an immunoglobulin superfamily member involved in cellular responses.
  • RAGE activation triggers signaling pathways linked to inflammation, oxidative stress, and proliferation.
  • Its role in skin pathologies is less understood compared to its involvement in diabetes and cancer.

Purpose of the Study:

  • To review the current understanding of RAGE's involvement in skin disease pathophysiology.
  • To focus on RAGE's roles in inflammatory signaling, tissue remodeling, and skin cancer progression in dermatological conditions.
  • To examine RAGE-modulating treatments for skin diseases.

Main Methods:

  • Literature review synthesizing existing research on RAGE in skin diseases.
  • Analysis of RAGE's contribution to the pathogenesis of specific conditions like psoriasis, atopic dermatitis, and lichen planus.
  • Evaluation of therapeutic strategies targeting RAGE in dermatological contexts.

Main Results:

  • RAGE is implicated in the pathogenesis of various skin diseases, including psoriasis, atopic dermatitis, and lichen planus.
  • RAGE activation contributes to inflammatory signaling, abnormal tissue remodeling, and skin cancer progression.
  • Several RAGE-modulating treatments have shown potential in dermatological research.

Conclusions:

  • RAGE is a significant factor in the pathophysiology of diverse skin conditions.
  • Understanding RAGE-mediated pathways is crucial for developing targeted dermatological therapies.
  • Further research into skin-specific RAGE signaling may reveal novel therapeutic opportunities.

Related Concept Videos

Clinical Applications of Epidermal Stem Cells01:19

Clinical Applications of Epidermal Stem Cells

Epidermal stem cells (EpiSCs) are mainly located at the basal layer of the epidermis. These cells repair minor injuries of the skin and replace dead skin cells. However, EpiSCs’ cannot heal severe wounds such as major burns or those from diabetes or hereditary disorders. In such cases, culturing the epidermal stem cells from the patient is possible and has yielded successful treatment options, such as laboratory-grown skin grafts. These grafts are synthesized using a patient’s own...
2.7K
T Cell Types and Functions01:24

T Cell Types and Functions

When T cells with CD4 markers are activated, they give rise to two types of effector cells: helper T cells and regulatory T cells. Meanwhile, T cells with CD8 markers differentiate into effector cytotoxic T cells. The differentiation of CD4 T cells into helper T cell subsets, such as Th1, Th2, and Th17 cells, is dependent on the antigen type, antigen-presenting cell, and regulatory cytokines.
Th1 cells stimulate dendritic cells to express necessary co-stimulatory molecules on their surfaces for...
946
The Intrinsic Apoptotic Pathway01:31

The Intrinsic Apoptotic Pathway

Internal cellular stress, such as cellular injury or hypoxia, triggers intrinsic apoptosis. The B-cell lymphoma 2 (Bcl-2) family of proteins are the primary regulators of the intrinsic apoptotic pathway. For example, during DNA damage, checkpoint proteins, such as Ataxia Telangiectasia Mutated (ATM protein) and Checkpoints Factor-2 (Chk2) proteins, are activated. These proteins phosphorylate p53 which further activates pro-apoptotic proteins, such as Bax, Bak, PUMA, and Noxa, and inhibits...
6.4K
Renewal of Skin Epidermal Stem Cells01:12

Renewal of Skin Epidermal Stem Cells

The skin is divided into epidermis, dermis, and hypodermis, the skin's outermost, middle, and inner layers. The human epidermal layer regularly undergoes renewal, where old, dead cells are replaced by new cells. Epidermal stem cells or EpiSCs divide and differentiate to restore the lost cells. For the renewal process, some EpiSCs continuously self-renew. In contrast, few others differentiate into transit-amplifying cells, which later form prickle or spinous cells, followed by granular...
2.5K
MAPK Signaling Cascades01:07

MAPK Signaling Cascades

Mitogen-activated protein kinase, or MAPK pathway, activates three sequential kinases to regulate cellular responses such as proliferation, differentiation, survival, and apoptosis. The canonical MAPK pathway starts with a mitogen or growth factor binding to an RTK. The activated RTKs stimulate Ras, which recruits Raf or MAP3 Kinase (MAPKKK), the first kinase of the MAPK signaling cascade. Raf further phosphorylates and activates MEK or MAP2 Kinases (MAPKK), which in turn phosphorylates MAP...
5.2K
The JAK-STAT Signaling Pathway01:20

The JAK-STAT Signaling Pathway

Several cytokine receptors have tightly bound Janus kinase or JAK proteins attached at their cytosolic tail. Small signaling molecules such as cytokines, growth hormones, or prolactins bind to the cytokine receptors and initiate their dimerization. The dimerization brings the cytosolic JAKs together that trans-phosphorylate and activates each other. The activated JAKs now phosphorylate cytosolic tails of the cytokine receptors, which serve as binding sites for adaptor proteins such as  SH2...
8.7K