Clinical Significance of Structural Variations in Breast Vasculature Evaluated via Three-Dimensional Computed Tomography Imaging.

Background: While alterations in the vasculature supplying the breast have been extensively recorded, there is no information on the direct breast branches of the axillary artery (AA). An elucidation of the direct breast branches may prove beneficial during mammoplasty.

Objective: This study sought to investigate the anatomical characterization of breast vasculature utilizing three-dimensional (3D) technology to establish an anatomical foundation for therapeutic operations.

Enhancing neurite growth and neural functions on polymeric nerve conduit with BMSC-derived ECM coating.

The therapy of large defects in peripheral nerve injury (PNI) suffers from several drawbacks, especially the lack of autologous nerve donors. Nerve conduits are considered as a solution for nerve injury treatment, but biocompatibility improvements is still required for conduits prepared with synthetic materials. Cell-derived extracellular matrix (ECM) has drawn attention due to its lower risk of immunogenic response and independence from donor availability.

A bioactive xyloglucan polysaccharide hydrogel mechanically enhanced by Pluronic F127 micelles for promoting chronic wound healing.

Chronic wounds represent a formidable global healthcare challenge due to the bacteria infections and uncontrollable inflammation responses, while developing wound healing materials capable of resolving these issues remains a challenge. In this study, we integrated xyloglucan (XG) with Pluronic F127 diacrylate (F127DA)to develop a composite hydrogel for wound healing, where the XG introduced anti-inflammation and anti-bacterial properties to the construct, and F127DA provides the photocurable properties essential for hydrogel formation and robust mechanical characteristics to achieve physical strength that matches tissue regeneration. The material characterizations suggested that XG/F127DA hydrogels had great biostability, blood compatibility and antibacterial effects, which was suitable to be used as a wound healing material.

Dual-layer conduit containing VEGF-A - Transfected Schwann cells promotes peripheral nerve regeneration via angiogenesis.

Peripheral nerve injuries (PNIs) can cause neuropathies and significantly affect the patient's quality of life. Autograft transplantation is the gold standard for conventional treatment; however, its application is limited by nerve unavailability, size mismatch, and local tissue adhesion. Tissue engineering, such as nerve guidance conduits, is an alternative and promising strategy to guide nerve regeneration for peripheral nerve repair; however, only a few conduits could reach the high repair efficiency of autografts.

A grooved conduit combined with decellularized tissues for peripheral nerve regeneration.

Peripheral nerve injury (PNI) is a common and severe clinical disease worldwide, which leads to a poor prognosis because of the complicated treatments and high morbidity. Autologous nerve grafting as the gold standard still cannot meet the needs of clinical nerve transplantation because of its low availability and limited size. The development of artificial nerve conduits was led to a novel direction for PNI treatment, while most of the currently developed artificial nerve conduits was lack biochemical cues to promote nerve regeneration.

3D bioprinting of multi-cellular tumor microenvironment for prostate cancer metastasis.

Prostate cancer (PCa) is one of the most lethal cancers in men worldwide. The tumor microenvironment (TME) plays an important role in PCa development, which consists of tumor cells, fibroblasts, endothelial cells, and extracellular matrix (ECM). Hyaluronic acid (HA) and cancer-associated fibroblasts (CAFs) are the major components in the TME and are correlated with PCa proliferation and metastasis, while the underlying mechanism is still not fully understood due to the lack of biomimetic ECM components and coculture models.

Evaluation of the Effect of Fibroblasts on Melanoma Metastasis Using a Biomimetic Co-Culture Model.

Melanoma is a highly malignant tumor originating from melanocytes. The 5-year survival rate of primary melanoma is 98%, whereas the survival rate of metastatic melanoma is only 10%, which can be attributed to the insensitivity to existing treatments. Fibroblasts are the primary cells in the dermis that promote melanoma metastasis; however, the molecular mechanism underlying the fibroblast-melanoma interaction is yet to be completely understood.

Cells, growth factors and biomaterials used in tissue engineering for hair follicles regeneration.

Alopecia is a common and distressing medical condition that has affected a majority of people worldwide, which leads to great effects on the quality of life and self-esteem. Numerous treatments had been used to cure alopecia, including hair growth stimulants, herbal products, and hair transplantation. However, these treatments have their side effects, such as hypertrichosis, edema, and even cardiovascular adverse effects, which lead to the urgent requirement to explore a new hair-follicle (HF) regeneration approach.

study of decellularized rat tissues for nerve regeneration.

Peripheral nerve injuries cause an absence or destruction of nerves. Decellularized nerves, acting as a replacement for autografts, have been investigated in the promotion of nerve repair and regeneration, always being incorporated with stem cells or growth factors. However, such a strategy is limited by size availability.