Publications by authors named "Xinzhu Shan"

Article Synopsis
  • - The study focuses on improving the inhaled delivery of mRNA using lipid nanoparticles (LNP), which face challenges like disintegration and aggregation during nebulization, hindering treatment effectiveness for lung diseases and mucosal vaccines.
  • - A new strategy called charge-assisted stabilization (CAS) enhances LNP stability by creating electrostatic repulsions, leading to better mRNA delivery in animal models (mouse, dog, and pig).
  • - The effective delivery of inhaled CAS-LNP triggers strong immune responses and shows potential as a vaccine against the SARS-CoV-2 Omicron variant, as well as for cancer treatment to reduce lung metastasis.
View Article and Find Full Text PDF
Article Synopsis
  • Metabolic dysfunction-associated steatohepatitis (MASH) complicates the delivery of therapeutic proteins due to excess extracellular matrix (ECM), leading to the development of a new treatment strategy called "Fibrosis overexpression and retention (FORT)."
  • FORT utilizes specially designed retinoid-derivative lipid nanoparticles (LNPs) that enhance mRNA expression in fibrotic areas and include modifications to promote protein anchoring in the ECM.
  • The approach has shown a tenfold increase in protein expression and improved retention of engineered therapeutic proteins in fibrotic lesions, proving effective in various animal models of MASH while reducing toxicity.
View Article and Find Full Text PDF

Tapping into the innate immune system's power, nanovaccines can induce tumor-specific immune responses, which is a promising strategy in cancer immunotherapy. However, traditional vaccine design, requiring simultaneous loading of antigens and adjuvants, is complex and poses challenges for mass production. Here, we developed a tumor nanovaccine platform that integrates adjuvant functions into the delivery vehicle, using branched polyguanidine (PolyGu) nanovaccines.

View Article and Find Full Text PDF

Nitric oxide (NO) is a gaseous molecule endowed with diverse biological functions, offering vast potential in the realm of cancer treatment. Considerable efforts have been dedicated to NO-based cancer therapy owing to its good biosafety and high antitumor activity, as well as its efficient synergistic therapy with other antitumor modalities. However, delivering this gaseous molecule effectively into tumor tissues poses a significant challenge.

View Article and Find Full Text PDF

Thrombotic cardio-cerebrovascular diseases seriously threaten human health. Currently, conventional thrombolytic treatments are challenged by the low utilization, inferior thrombus penetration, and high off-target bleeding risks of most thrombolytic drugs, resulting in unsatisfactory treatment outcomes. Herein, it is proposed that these challenges can be overcome by precisely integrating the conventional thrombolytic strategy with photothermal therapy.

View Article and Find Full Text PDF

Background: Photothermal therapy (PTT) has been extensively investigated as a tumor-localizing therapeutic modality for neoplastic disorders. However, the hyperthermia effect of PTT is greatly restricted by the thermoresistance of tumor cells. Particularly, the compensatory expression of heat shock protein 90 (HSP90) has been found to significantly accelerate the thermal tolerance of tumor cells.

View Article and Find Full Text PDF

With the rapid development of conjugation chemistry and biomedical nanotechnology, prodrug-based nanosystems (PNS) have emerged as promising drug delivery nanoplatforms. Dimeric prodrug, as an emerging branch of prodrug, has been widely investigated by covalently conjugating two same or different drug molecules. In recent years, great progress has been made in dimeric prodrug-based nanosystems (DPNS) for cancer therapy.

View Article and Find Full Text PDF

The clinical efficacy of existing cancer therapies is still far from satisfactory. There is an urgent need to integrate the emerging biomedical discovery and technological innovation with traditional therapies. Ferroptosis, a non-apoptotic programmed cell death modality, has attracted remarkable attention as an emerging therapeutic target for cancer treatment, especially with the burgeoning bionanotechnology.

View Article and Find Full Text PDF