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Isosorbide di-(linoleate/oleate) stimulates pro-differentiation gene expression to restore the epidermal barrier and improve skin hydration

ABSTRACT: Isosorbide di-(linoleate/oleate) stimulates pro-differentiation gene expression to restore the epidermal barrier and improve skin hydration

PROVIDER: PRJNA663361 | ENA |

REPOSITORIES: ENA

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Isosorbide di-(linoleate/oleate) stimulates pro-differentiation gene expression to restore the epidermal barrier and improve skin hydration

Project description:The breakdown of epidermal barrier and consequent loss of skin hydration is a feature of skin aging and eczematous dermatitis. Few treatments, however, resolve these underlying processes to provide full symptomatic relief. In this study, we generated a novel compound, isosorbide di-(linoleate/oleate) (IDL), by esterifying isosorbide with sunflower fatty acids. Topical effects of IDL in skin were compared to those of ethyl linoleate/oleate (EL), which has previously been shown to improve skin barrier function. Both IDL and EL down-regulated inflammatory gene expression, but IDL more effectively up-regulated the expression of genes associated with keratinocyte differentiation (e.g., KRT1, GRHL2, SPRR4). Consistent with this, IDL increased abundance of epidermal barrier proteins (filaggrin and involucrin) and prevented cytokine-mediated stratum corneum degradation. IDL also down-regulated expression of “unhealthy skin signature” genes linked to loss of epidermal homeostasis and uniquely repressed an interferon-inducible co-expression module activated in multiple skin diseases including psoriasis. In a double-blind placebo-controlled trial enrolling females with dry skin, 2% IDL lotion applied over 2 weeks significantly improved skin hydration and decreased transepidermal water loss (NCT04253704). These results demonstrate mechanisms by which IDL improves skin hydration and epidermal barrier function, supporting IDL as an effective intervention for treatment of xerotic pruritic skin.

2020-11-16 | GSE157932 | GEO

Isosorbide fatty acid diesters have synergistic anti-inflammatory effects in cytokine-induced tissue culture models of atopic dermatitis

Project description:Atopic dermatitis (AD) is a chronic disease in which epidermal barrier disruption triggers Th2-mediated eruption of eczematous lesions. Topical emollients are a cornerstone of chronic management. This study evaluated efficacy of two plant-derived oil derivatives, isosorbide di-(linoleate/oleate) (IDL) and isosorbide dicaprylate (IDC), using AD-like tissue culture models. Treatment of reconstituted human epidermis with cytokine cocktail (IL-4 + IL-13 + TNF-α + IL-31) compromised the epidermal barrier, but this was prevented by co-treatment with IDL and IDC. Cytokine stimulation also dysregulated expression of keratinocyte (KC) differentiation genes whereas treatment with IDC or IDL+IDC up-regulated genes associated with early (but not late) KC differentiation. Although neither IDL nor IDC inhibited Th2 cytokine responses, both compounds repressed TNF-α-induced genes and IDL+IDC led to synergistic down-regulation of inflammatory (IL1B, ITGA5) and neurogenic pruritus (TRPA1) mediators. Treatment of cytokine-stimulated skin explants with IDC decreased lactate dehydrogenase (LDH) secretion by more than 50% (more than observed with cyclosporine) and in vitro LDH activity was inhibited by IDL and IDC. These results demonstrate anti-inflammatory mechanisms of isosorbide fatty acid diesters in AD-like skin models. Our findings highlight the multifunctional potential of plant oil derivatives as topical ingredients and support studies of IDL and IDC as therapeutic candidates.

2022-11-21 | GSE217468 | GEO

A sensitization-free dimethyl fumarate (DMF) pro-drug, isosorbide di-(methyl fumarate) (IDMF), provides a topical treatment candidate for psoriasis [microarray]

Project description:Dimethyl fumarate (DMF) is an effective oral treatment for psoriasis administered in Europe for nearly 60 years. Its potential, however, has been limited by contact dermatitis that prohibits topical application. This paper characterizes a DMF derivative, isosorbide di-(methyl fumarate) (IDMF), which was designed to have anti-psoriatic effects without skin-sensitizing properties. We show that IDMF exhibits neither genotoxicity nor radiation sensitivity in skin fibroblasts and is non-irritating and non-sensitizing in animal models (rat, rabbit, guinea pig). Microarray analysis of cytokine-stimulated keratinocytes showed that IDMF represses the expression of genes specifically up-regulated in psoriatic skin lesions but not those of other skin diseases. IDMF also down-regulated genes induced by IL-17A and TNF in keratinocytes, as well as predicted targets of NF-κB and the anti-differentiation ncRNA (ANCR). IDMF further stimulated transcription of oxidative stress response genes (NQO1, GPX2, GSR) with stronger Nrf2/ARE activation compared to DMF. Finally, IDMF reduced erythema and scaling while repressing expression of immune response genes in psoriasiform lesions elicited by topical application of imiquimod in mice. These data demonstrate that IDMF exbibits anti-psoriatic activity that is similar or improved compared to DMF, without the harsh skin-sensitizing effects that have prevented topical delivery of the parent molecule.

2021-08-22 | GSE175473 | GEO

Transcriptomic analysis of fumarate compounds identifies unique effects of isosorbide di-(methyl fumarate) on NRF2, NF-kappaB and IRF1 pathway genes

Project description:Dimethyl fumarate (DMF) has emerged as first-line therapy for relapsing-remitting multiple scle-rosis (RRMS). This treatment, however, has been limited by adverse effects, which has prompted development of novel derivatives with improved tolerability. We compared effects of fumarates on gene expression in astrocytes. Our analysis included diroximel fumarate (DRF) and its metabolite monomethyl fumarate (MMF), along with a novel compound isosorbide di-(methyl fumarate) (IDMF). Treatment with IDMF resulted in the largest number of differentially expressed genes. The effects of DRF and MMF were consistent with NRF2 activation and NF-kappaB inhibition, respectively. IDMF responses, however, were concordant with both NRF2 activation and NF-kappaB inhibition, and we confirmed IDMF-mediated NF-kappaB inhibition using a reporter assay. IDMF also down-regulated IRF1 expression and IDMF-decreased gene promoters were enriched with IRF1 recognition se-quences. Genes altered by each fumarate overlapped significantly with those near loci from MS genetic association studies, but IDMF had the strongest overall effect on MS-associated genes. These results show that next-generation fumarates such as DRF and IDMF have effects differing from those of the MMF metabolite. Our findings support a model in which IDMF attenuates oxidative stress via NRF2 activation, with suppression of NF-kappaB and IRF1 contributing to mitigation of in-flammation and pyroptosis.

2022-04-27 | GSE200539 | GEO

A sensitization-free dimethyl fumarate (DMF) pro-drug, isosorbide di-(methyl fumarate) (IDMF), provides a topical treatment candidate for psoriasis [RNA-seq]

2021-08-22 | GSE175471 | GEO

Gene regulation by elevated c-di-AMP levels in Streptococcus pneumoniae

Project description:Streptococcus pneumoniae harbors two cyclic di-AMP (c-di-AMP) phosphodiesterases Pde1 and Pde2. Previously, we demonstrated that deletion of one or both of these proteins leads to growth retardation in culture media, defects in the bacterial stress response, and attenuation in mouse models of disease. All of these phenotypes are due to increased levels of c-di-AMP, since the nature and break down products of each protein are different, and mutations that lower c-di-AMP levels partially restore growth and stress tolerance in these mutants. However, how c-di-AMP mediates pneumococcal stress resistance and virulence is unknown. To establish how c-di-AMP affects the transcriptome, RNA-Seq analysis was employed to compare gene expression between wild-type and Δpde1Δpde2 (ST2734) pneumococci. Overall, the competence regulon was upregulated in the Δpde1Δpde2 mutant.

2018-04-18 | GSE113231 | GEO

A sensitization-free dimethyl fumarate (DMF) pro-drug, isosorbide di-(methyl fumarate) (IDMF), provides a topical treatment candidate for psoriasis

Project description:A sensitization-free dimethyl fumarate (DMF) pro-drug, isosorbide di-(methyl fumarate) (IDMF), provides a topical treatment candidate for psoriasis

| PRJNA732447 | ENA

Transcriptomic analysis of fumarate compounds identifies unique effects of isosorbide di-(methyl fumarate) on NRF2, NF-kappaB and IRF1 pathway genes

Project description:Transcriptomic analysis of fumarate compounds identifies unique effects of isosorbide di-(methyl fumarate) on NRF2, NF-kappaB and IRF1 pathway genes

| PRJNA825247 | ENA

A sensitization-free dimethyl fumarate (DMF) pro-drug, isosorbide di-(methyl fumarate) (IDMF), provides a topical treatment candidate for psoriasis [microarray]

Project description:A sensitization-free dimethyl fumarate (DMF) pro-drug, isosorbide di-(methyl fumarate) (IDMF), provides a topical treatment candidate for psoriasis [microarray]

| PRJNA732450 | ENA

A sensitization-free dimethyl fumarate (DMF) pro-drug, isosorbide di-(methyl fumarate) (IDMF), provides a topical treatment candidate for psoriasis [RNA-seq]

Project description:A sensitization-free dimethyl fumarate (DMF) pro-drug, isosorbide di-(methyl fumarate) (IDMF), provides a topical treatment candidate for psoriasis [RNA-seq]

| PRJNA732445 | ENA

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