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ProTide generated long-acting abacavir nanoformulations.

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Novel abacavir pronucleotide nanoformulations (NM3ABC) offer sustained antiretroviral therapy. A single dose maintained drug activity in macrophages for 30 days, indicating potential for long-acting treatment.

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Area of Science:

  • Pharmacology
  • Nanotechnology
  • Virology

Background:

  • Abacavir is a crucial antiretroviral drug.
  • Current therapies require frequent dosing.
  • Developing long-acting formulations is a key goal in HIV treatment.

Purpose of the Study:

  • To develop and evaluate novel abacavir pronucleotide nanoformulations (NM3ABC).
  • To assess the sustained release and antiviral activity of NM3ABC.
  • To investigate NM3ABC as a potential long-acting antiretroviral therapy.

Main Methods:

  • Preparation of abacavir pronucleotide nanoformulations (NM3ABC).
  • Treatment of human monocyte-derived macrophages with NM3ABC.
  • Measurement of intracellular carbovir-triphosphate levels.
  • Assessment of sustained antiretroviral activity over 30 days.

Main Results:

  • Successful preparation of NM3ABC.
  • Sustained intracellular carbovir-triphosphate was observed for up to 30 days post-treatment.
  • Antiretroviral activity was maintained for the 30-day period.

Conclusions:

  • NM3ABC represents a promising long-acting, slow-release antiretroviral formulation.
  • Single NM3ABC administration can provide sustained therapeutic drug levels and antiviral effects.
  • This nanoformulation could potentially reduce dosing frequency for HIV treatment.