Experimental design and optimization of a novel dual-release drug delivery system with therapeutic potential against infection with Helicobacter pylori

Application of a Two-Phase Experiment Design and Optimization Method to Formulate Ciprofloxacin-Loaded Bovine Serum Albumin Nanoparticles with High-Entrapment Efficiency for Targeting Urinary Tract Infections

Urinary tract infections (UTIs), predominantly caused by uropathogenic Escherichia coli (UPEC), pose a global health concern due to rising antibiotic resistance and biofilm formation. Albumin nanoparticles (NPs) offer a promising strategy for UTI treatment, with site-specific selectivity, improved bioavailability, and sustained drug release. This study focused on developing an optimized method for formulating ciprofloxacin-loaded albumin nanoparticles (CPF-loaded BSA NPs) to treat UPEC and its biofilms effectively. A desolvation method was used to synthesize the nanoparticles, and a two-phase experimental design was used for optimization. Evaluation parameters included size, polydispersity index, zeta potential, morphology, encapsulation efficiency, drug release, storage stability, cytotoxicity, and effectiveness against UPEC. The optimized CPF-loaded BSA NPs exhibited desirable characteristics such as small particle size (123 nm), low polydispersity index (0.178), optimum zeta potential (-31.8), and high encapsulation efficiency (> 80%). They also exhibited low cytotoxicity, high stability, and sustained drug release, making them an ideal drug delivery system. Critically, they demonstrated effectiveness against UPEC and its biofilm. This study suggests that the optimized CPF-loaded BSA NPs, synthesized using our optimized desolvation technique, hold the potential for effectively treating UTIs caused by UPEC.

Unveiling the potential role of micro/nano biomaterials in the treatment of Helicobacter pylori infection

INTRODUCTION

Helicobacter pylori causes stubborn infections and leads to a variety of stomach disorders, such as peptic ulcer, chronic atrophic gastritis, and gastric cancer. Although antibiotic-based approaches have been widely used against H. pylori, some challenges such as antibiotic resistance are increasing in severity. Therefore, simpler but more effective strategies are needed.

AREAS COVERED

In this review, basic information on functionalized and non-functionalized micro/nano biomaterials and routes of administration for H. pylori inhibition are provided in an easy-to-understand format. Afterward, in vitro and in vivo studies of some promising bio-platforms including metal-based biomaterials, biopolymers, small-molecule saccharides, and vaccines for H. pylori inhibition are discussed in a holistic manner.

EXPERT OPINION

Functionalized or non-functionalized micro/nano biomaterials loaded with anti-H. pylori agents can show efficient bactericidal activity with no/slight negative influence on the host gastrointestinal microbiota. However, this claim needs to be substantiated with hard data such as assessment of the biopharmaceutical parameters of anti-H. pylori systems and the measurement of diversity/abundance of bacterial genera in the host gastric/gut microbiota before and after H. pylori eradication.

Scope and Limitations of Current Antibiotic Therapies against Helicobacter pylori: Reviewing Amoxicillin Gastroretentive Formulations

Even though general improvement of quality of life has happened around the globe, statistics show that gastric cancer is still a very serious medical concern in some regions of the world. A big portion of malignant neoplasms that develop inside the stomach are linked to an infection of Helicobacter pylori; in fact, this pathogen has already been categorized as a group 1 carcinogen by the World Health Organization (WHO). Still, the efficacy of current anti-H. pylori therapeutic approaches is insufficient and follows a worrying decreasing trend, mainly due to an exponential increase in resistance to key antibiotics. This work analyzes the clinical and biological characteristics of this pathogen, especially its link to gastric cancer, and provides a comprehensive review of current formulation trends for H. pylori eradication. Research effort has focused both on the discovery of new combinations of chemicals that function as optimized antibiotic regimens, and on the preparation of gastroretentive drug delivery systems (GRDDSs) to improve overall pharmacokinetics. Regarding the last topic, this review aims to summarize the latest trend in amoxicillin-loaded GRDDS, since this is the antibiotic that has shown the least bacterial resistance worldwide. It is expected that the current work could provide some insight into the importance of innovative options to combat this microorganism. Therefore, this review can inspire new research strategies in the development of efficient formulations for the treatment of this infection and the consequent prevention of gastric cancer.