Applicability of different cell line-derived dendritic cell-like cells in autophagy research.

Background And Aims: Immortalized cell lines have been long used as substitute for ex vivo murine and human material, but exhibit features that are not found in healthy tissue. True human dendritic cells (DC) cannot be cultured or passaged as opposed to immortalized cell lines. Research in the fields of immunogenic responses and immunotolerance in DCs has increased over the last decade.

Crosstalk between keratinocytes and T cells in a 3D microenvironment: a model to study inflammatory skin diseases.

The interaction between keratinocytes and immune cells plays a major role in the development of inflammatory skin diseases like psoriasis and atopic dermatitis. Pharmacological intervention to inhibit T cell-derived proinflammatory mediators is an effective therapy in the treatment of psoriasis. Here, we present a model to study the interaction between keratinocytes and T cells in a three-dimensional (3D) microenvironment, based on human skin equivalents populated with CD4+ T cells.

APR-246/PRIMA-1(MET) rescues epidermal differentiation in skin keratinocytes derived from EEC syndrome patients with p63 mutations.

p53 and p63 share extensive sequence and structure homology. p53 is frequently mutated in cancer, whereas mutations in p63 cause developmental disorders manifested in ectodermal dysplasia, limb defects, and orofacial clefting. We have established primary adult skin keratinocytes from ectrodactyly, ectodermal dysplasia, and cleft lip/palate (EEC) syndrome patients with p63 mutations as an in vitro human model to study the disease mechanism in the skin of EEC patients.

Co-culture of healthy human keratinocytes and T-cells promotes keratinocyte chemokine production and RORγt-positive IL-17 producing T-cell populations.

Background: Both keratinocytes and T-cells are crucial players in cutaneous immune responses. We hypothesized that direct interactions between keratinocytes and T-cell subsets could shape the nature or strength of the local immune response.

Objective: We investigated direct interactions between keratinocytes and T-cell subsets, focused on keratinocyte chemokine production and T-cell phenotype and cytokine production.

Construction of a microstructured collagen membrane mimicking the papillary dermis architecture and guiding keratinocyte morphology and gene expression.

A papillary-structured collagen fibril membrane is created, mimicking the 3D-architecture of the human papillary dermis. Primary human keratinocytes cultured to confluency on papillar-structured films are compared to keratinocytes cultured on flat membranes. Microscopical evaluation reveals the presence of morphologically distinct cells at the base of the papillar structures that are not observed on flat membranes.