Polymeric complexes of isonicotinic acid hydrazide with antituberculosis effects

Area of Science:

• Microbiology
• Immunology
• Materials Science

Background:

• Tuberculosis (TB) remains a significant global health challenge, necessitating innovative treatment approaches.
• Isonicotinic acid hydrazide (isoniazid) is a cornerstone of TB therapy, but drug resistance and side effects are concerns.
• Developing novel drug delivery systems can enhance therapeutic efficacy and patient outcomes.

Purpose of the Study:

• To evaluate the efficacy of an immobilized analogue of isonicotinic acid hydrazide in treating experimental tuberculosis.
• To investigate the therapeutic potential of a polymeric metal complex comprising N-chlorohydroxypropyl chitosan and cobalt ions.
• To explore the immunostimulating activity of the developed complex.

Main Methods:

• Experimental tuberculosis model in animals.
• Synthesis and characterization of N-chlorohydroxypropyl chitosan.
• Immobilization of isonicotinic acid hydrazide analogue onto the chitosan carrier.
• Formation of a polymeric metal complex with cobalt ions.
• Assessment of therapeutic efficacy and immunostimulating effects.

Main Results:

• The immobilized isonicotinic acid hydrazide analogue, complexed with cobalt and chitosan, demonstrated significant efficacy in the treatment of experimental tuberculosis.
• The polymeric metal complex exhibited notable immunostimulating activity, suggesting a dual mechanism of action.
• The carrier system effectively delivered the active compound, potentially improving pharmacokinetic properties and reducing toxicity.

Conclusions:

• Immobilized isonicotinic acid hydrazide on a chitosan-cobalt complex represents a promising strategy for enhanced tuberculosis therapy.
• The observed immunostimulating effects warrant further investigation for their role in combating tuberculosis.
• This approach holds potential for the development of highly effective and novel methods for tuberculosis treatment.