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Topic Review
AHR and NRF2 in Atopic Dermatitis
Skin is constantly exposed to environmental insults, including toxic chemicals and oxidative stress. These insults often provoke perturbation of epidermal homeostasis and lead to characteristic skin diseases. AHR (aryl hydrocarbon receptor) and NRF2 (nuclear factor erythroid 2-related factor 2) are transcription factors that induce a battery of cytoprotective genes encoding detoxication and antioxidant enzymes in response to environmental insults. In addition to their basic functions as key regulators of xenobiotic and oxidant detoxification, it has been revealed that AHR and NRF2 also play critical roles in the maintenance of skin homeostasis. In fact, specific disruption of AHR function in the skin has been found to be associated with the pathogenesis of various skin diseases, most prevalently atopic dermatitis (AD).
  • 1.3K
  • 19 Apr 2022
Topic Review
Mechanotransduction in Skin and Wounds
Skin injury is a common occurrence and mechanical forces are known to significantly impact the biological processes of skin regeneration and wound healing. Immediately following the disruption of the skin, the process of wound healing begins, bringing together numerous cell types to collaborate in several sequential phases. These cells produce a multitude of molecules and initiate multiple signaling pathways that are associated with skin disorders and abnormal wound healing, including hypertrophic scars, keloids, and chronic wounds. Studies have shown that mechanical forces can alter the microenvironment of a healing wound, causing changes in cellular function, motility, and signaling. A better understanding of the mechanobiology of cells in the skin is essential in the development of efficacious therapeutics to reduce skin disorders, normalize abnormal wound healing, and minimize scar formation.
  • 1.3K
  • 30 Oct 2020
Topic Review
Atopic Dermatitis (AD)
The skin harbors a huge number of different microorganisms such as bacteria, fungi and viruses, and it acts as a protective shield to prevent the invasion of pathogens and to maintain the health of the commensal microbiota. Several studies, in fact, have shown the importance of the skin microbiota for healthy skin. This balance can be altered by intrinsic and extrinsic factors, leading to the development of skin disease, such as acne vulgaris (AV), atopic dermatitis (AD) and rosacea (RS).
  • 1.3K
  • 27 Oct 2022
Topic Review
Psoriasis
Psoriasis is a common immune-mediated inflammatory skin disease characterized by well-demarcated scaly raised plaques.
  • 1.3K
  • 22 Apr 2021
Topic Review
Soluble Factors and Receptors in Skin Innate Immunity
The pattern recognition receptors, complement system, inflammasomes, antimicrobial peptides, and cytokines are innate immunity soluble factors. They sense, either directly or indirectly, the potential threats and produce inflammation and cellular death. High interest in their modulation has emerged lately, acknowledging they are involved in many cutaneous inflammatory, infectious, and neoplastic disorders. We extensively reviewed the implication of soluble factors in skin innate immunity. Furthermore, we showed which molecules target these factors, how these molecules work and how they've been used in dermatological practice. Cytokine inhibitors have paved the way to a new era in treating moderate to severe psoriasis and atopic dermatitis. 
  • 1.2K
  • 13 Dec 2021
Topic Review
Acne Inversa
Acne inversa, namely, Hidradenitis suppurativa (HS), is a chronic inflammatory skin disease affecting ~1% of the global population. HS typically occurs after puberty, with the average age of onset in the second or third decades of life and with a female predominance. Approximately one third of patients are genetically predisposed. Moreover, lifestyle factors, such as smoking and obesity, play a crucial role in the clinical course of HS.
  • 1.2K
  • 29 Sep 2021
Topic Review
Chitosan/Graphene Oxide Composite Films
The healing of wounds is still one of the challenging clinical problems for which an efficient and fast treatment is needed. Therefore, recent studies have created a new generation of wound dressings which can accelerate the wound healing process with minimum side effects. Chitosan, a natural biopolymer, is an attractive candidate for preparing biocompatible dressings. The biodegradability, non-toxicity and antibacterial activity of chitosan have made it a promising biopolymer for treating wounds. Graphene oxide has also been considered by researchers as a non-toxic, inexpensive, and biocompatible material for wound healing applications. This review discusses the potential use of chitosan/graphene oxide composite films and their application in wound dressing and drug delivery systems. 
  • 1.2K
  • 02 Sep 2021
Topic Review
Superficial Spindle Cell Mesenchymal Tumors
Superficial spindle cell mesenchymal tumors form a diverse group of lesions with benign and malignant entities that are often very similar clinically and/or histologically. In children, the patient’s age; the lesion site; the presentation as a mass, nodule, or plaque; and the location in the dermis or subcutis are important features that will guide the dermatologist and the pathologist.
  • 1.2K
  • 02 Oct 2021
Topic Review
Asthma
Asthma is an inflammatory condition of the bronchial mucosa affecting 10% of children and 5% of adults in Western countries.
  • 1.2K
  • 25 Apr 2021
Topic Review
Nanotechnology-Based Topical Delivery of Natural Products for AD
Atopic dermatitis (AD) is a chronic eczematous inflammatory disease that may arise from environmental, genetic, and immunological factors. Despite the efficacy of current treatment options such as corticosteroids, such approaches are mainly focused on symptom relief and may present certain undesirable side effects. Isolated natural compounds, oils, mixtures, and/or extracts have gained scientific attention because of their high efficiency and moderate to low toxicity.
  • 1.2K
  • 07 Jul 2023
Topic Review
Pathogenesis, Immunology and Management of Dermatophytosis
Dermatophytic infections of the skin and appendages are common skin diseases. The pathogenesis involves complex interplay of agent (dermatophytes), host (inherent host defense and host immune response) and the environment. Infection management has become an important public health issue, due to increased incidence of recurrent, recalcitrant or extensive infections. Recent years have seen a significant rise in incidence of chronic infections which have been difficult to treat.
  • 1.2K
  • 06 Jan 2022
Topic Review
Wound Healing Material
Dermal wound healing describes the progressive repair and recalcitrant mechanism of damaged skin, and eventually, reformatting and reshaping the skin. Many probiotics, nutritional supplements, metal nanoparticles, composites, skin constructs, polymers, and so forth have been associated with the improved healing process of wounds. The exact mechanism of material-cellular interaction is a point of immense importance, particularly in pathological conditions such as diabetes. Bioengineered alternative agents will likely continue to dominate the outpatient and perioperative management of chronic, recalcitrant wounds as new products continue to cut costs and improve the wound healing process. 
  • 1.2K
  • 22 Sep 2021
Topic Review
Human Skin Microbiome
The skin is the common coat of the body and is the largest organ of the human organism. Its role is to provide an optimal environment for deeper tissues, by separating them from the external environment, and at the same time ensuring contact with it by exchanging substances and receiving stimuli.
  • 1.2K
  • 22 Sep 2021
Topic Review
TRPV1 in Skin Diseases
TRPV1 is a nonspecific ion channel highly expressed by cutaneous sensory nerves and other skin cells, including circulating and skin resident immune cells. Understanding the role of TRPV1 in wound healing may inform future TRPV1-targeted therapies to improve healing in impaired and chronic wounds. Many factors contribute to the polymodal nature of TRPV1 channel activation including tetrameric composition, splice variant, accessory protein sensitization or desensitization, activator concentration/coupling, etc.
  • 1.2K
  • 28 Jun 2021
Topic Review
Mechanisms and Biomarkers of Metal Allergy
Metal allergy is mainly an environmental disorder which can cause allergic contact dermatitis. Environmental metal exposures include jewelry, everyday metal items, mobile phones, leather, metal-rich food and implants, including stents or anchors. While consumer exposure is liable for the majority of metal hypersensitivity cases, the significance of occupational exposure to metals remains relevant. The most common metal allergens are nickel, chromium, and cobalt.
  • 1.1K
  • 08 Jan 2023
Topic Review
The MEK5/ERK5 Pathway
The MEK5/ERK5 mitogen-activated protein kinases (MAPK) cascade is a unique signaling module activated by both mitogens and stress stimuli, including cytokines, fluid shear stress, high osmolarity, and oxidative stress.
  • 1.1K
  • 03 Aug 2021
Topic Review
HA Filler-Induced Vascular Occlusion
Biocompatible hyaluronic acid (HA, hyaluronan) gel implants have altered the therapeutic landscape of surgery and medicine, fostering an array of innovative products that include viscosurgical aids, synovial supplements, and drug-eluting nanomaterials. However, it is perhaps the explosive growth in the cosmetic applications of injectable dermal fillers that has captured the brightest spotlight, emerging as the dominant modality in plastic surgery and aesthetic medicine. The popularity surge with which injectable HA fillers have risen to in vogue status has also brought a concomitant increase in the incidence of once-rare iatrogenic vaso-occlusive injuries ranging from disfiguring facial skin necrosis to disabling neuro-ophthalmological sequelae. As researchers' understanding of the pathophysiology of these injuries has evolved, supplemented by more than a century of astute observations, the formulation of novel therapeutic and preventative strategies has permitted the amelioration of this burdensome complication.
  • 1.1K
  • 07 Sep 2022
Topic Review
Flavonoids in Skin Senescence Prevention
Skin aging is associated with the accumulation of senescent cells and is related to many pathological changes, including decreased protection against pathogens, increased susceptibility to irritation, delayed wound healing, and increased cancer susceptibility. Senescent cells secrete a specific set of pro-inflammatory mediators, referred to as a senescence-associated secretory phenotype (SASP), which can cause profound changes in tissue structure and function. Thus, drugs that selectively eliminate senescent cells (senolytics) or neutralize SASP (senostatics) represent an attractive therapeutic strategy for age-associated skin deterioration. There is growing evidence that plant-derived compounds (flavonoids) can slow down or even prevent aging-associated deterioration of skin appearance and function by targeting cellular pathways crucial for regulating cellular senescence and SASP. This review summarizes the senostatic and senolytic potential of flavonoids in the context of preventing skin aging.
  • 1.1K
  • 22 Sep 2021
Topic Review
Hydroa Vacciniforme, EBV, and Lymphoma
Hydroa vacciniforme (HV) is a rare form of photosensitivity disorder in children or adolescence and is frequently associated with Epstein–Barr virus (EBV) infection, whereas HV-like lymphoproliferative disorders (HVLPD) describe a spectrum of EBV-associated T-cell or natural killer (NK)-cell lymphoproliferations with HV-like cutaneous manifestations, including EBV-positive HV, atypical HV, and HV-like lymphoma. 
  • 1.1K
  • 23 Dec 2020
Topic Review
TNF-α Inhibitors and Vaccinations
This entry is a up-to-dated review of the current indications for vaccination in patients on anti-TNF-a therapy. Live attenuated vaccines are always contraindicated, while inactivated vaccines can be safely administered.
  • 1.1K
  • 15 Apr 2021
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