Related Experiment Video
Updated: May 23, 2025
03:10
Author Spotlight: Development and Evaluation of a Compound Acne Rodent Model Using C. acnes and Oleic Acid
Published on: November 1, 2024
2.2K
Insights into early acne pathogenesis: Exploring intercellular dynamics and key dysregulated genes.
Min Deng1, Kiana Farahani1, George W Agak1
1Division of Dermatology, David Geffen School of Medicine, University of California (UCLA), Los Angeles, CA 90095, USA.
Cell Signaling
|May 22, 2025
Summary
Researchers analyzed early-stage acne using single-cell RNA sequencing and spatial transcriptomics. They found key gene changes in skin cells, revealing new therapeutic targets for acne treatment.
Area of Science:
- Dermatology
- Molecular Biology
- Genomics
Background:
- Early-stage acne pathogenesis and associated signaling pathways are not fully understood.
- Intracellular communication in acne development requires further investigation.
Purpose of the Study:
- To analyze cell communication and identify dysregulated genes in early-stage acne.
- To explore potential therapeutic targets for acne based on identified gene changes.
Main Methods:
- Utilized single-cell RNA sequencing and spatial transcriptomics on acne patient datasets.
- Analyzed cell communication patterns and gene expression profiles.
Main Results:
- Identified dysregulated genes associated with inflammatory responses and hyperkeratinization in acne skin.
- Highlighted key genes and pathways involved in the interplay between inflammation and hyperkeratinization.
- Proposed potential new markers across various skin cell types.
Conclusions:
- Findings reveal consistent gene changes and dysregulated pathways in early-stage acne.
- Identified potential FDA-approved treatments targeting key acne pathogenesis pathways.
- Offers novel therapeutic targets for effective acne treatment.
Related Concept Videos
01:24Overview of Cell-Matrix Interactions
6.9K
The extracellular matrix or ECM holds cells together to form a tissue and allows the cells within the tissue to communicate. ECM comprises proteins such as fibronectin, collagen, laminin, etc. The most abundant protein in this space is collagen. Collagen fibers are interwoven with carbohydrate-containing protein molecules called proteoglycans. ECM allows cell migration and provides a structural scaffold at cell adhesion that anchors the cell when the extracellular matrix proteins interact with...
6.9K
01:16Cytoplasm
78.7K
The cytoplasm consists of organelles and a framework of protein scaffolds called the cytoskeleton suspended in an aqueous solution, the cytosol. The cytosol is a rich broth of water, ions, salts, and various organic molecules.
Protein Folding and Misfolding
The cytoplasm is the location for several cellular processes, including protein synthesis and folding. The aqueous nature of the cytosol promotes protein folding such that the hydrophobic amino acid side chains are buried in the protein...
Protein Folding and Misfolding
The cytoplasm is the location for several cellular processes, including protein synthesis and folding. The aqueous nature of the cytosol promotes protein folding such that the hydrophobic amino acid side chains are buried in the protein...
78.7K
01:17Intracellular Signaling Affects Focal Adhesions
2.5K
Integrins act both as extracellular input receivers and as intracellular processing activators. As their name suggests, integrins are entirely integrated into the membrane structure. Their hydrophobic membrane-spanning regions interact with the phospholipid bilayer's hydrophobic region. These membrane receptors provide extracellular attachment sites for effectors like hormones and growth factors. They activate intracellular response cascades when their effectors are bound and active.
Some...
Some...
2.5K
01:15Activation of Integrins
3.2K
Integrins bind ligands and transmit information from outside the cell to inside or vice-versa through an "outside-in signaling" or "inside-out signaling."
In "outside-in signaling," external factors in the extracellular space bind to exposed ligand binding sites on integrins. This causes the inactive protein to undergo a conformational change to become active. Integrins are often clustered on the cell membrane. Repetitive and regularly spaced ligand binding...
In "outside-in signaling," external factors in the extracellular space bind to exposed ligand binding sites on integrins. This causes the inactive protein to undergo a conformational change to become active. Integrins are often clustered on the cell membrane. Repetitive and regularly spaced ligand binding...
3.2K
01:12Renewal of Skin Epidermal Stem Cells
2.4K
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...
2.4K
01:31The Intrinsic Apoptotic Pathway
5.9K
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...
5.9K