Related Experiment Video
Updated: Jul 3, 2026
11:56
Nanomechanics of Drug-target Interactions and Antibacterial Resistance Detection
Published on: October 25, 2013
A new lipoglycopeptide: telavancin.
Esteban C Nannini1, Martin E Stryjewski
1Sanatorio Parque, Division of Infectious Diseases, Argentina.
Expert Opinion on Pharmacotherapy
|August 2, 2008
Summary
Telavancin is a new antibiotic effective against resistant Gram-positive bacteria, including MRSA. Clinical studies show its efficacy and safety for skin infections and pneumonia, with no detected resistance development.
Area of Science:
- Pharmacology
- Infectious Diseases
- Microbiology
Background:
- Rising infections from antibiotic-resistant Gram-positive organisms necessitate novel treatments.
- Telavancin, a lipoglycopeptide, offers a new therapeutic avenue.
Purpose of the Study:
- To evaluate the efficacy and safety of telavancin.
- To assess telavancin's activity against resistant Gram-positive pathogens.
Main Methods:
- Clinical trials involving patients with complicated skin and skin structure infections.
- Phase III studies in patients with healthcare-associated pneumonia.
Main Results:
- Telavancin demonstrated efficacy and safety in treating skin infections.
- No development of resistance in clinical strains was observed.
- Two Phase III studies for pneumonia were successfully completed.
Conclusions:
- Telavancin is a potent option against resistant Gram-positive cocci, including methicillin-resistant Staphylococcus aureus (MRSA).
- Its pharmacokinetic profile supports once-daily dosing.
- Potential for treating serious Gram-positive infections is significant.
Related Concept Videos
01:23Inhibitors of Gram-positive Cell Wall Synthesis
Bacterial cell walls are typically rigid structures composed mainly of peptidoglycan, a mesh-like polymer that provides mechanical strength and maintains cell shape. The synthesis of peptidoglycan is a crucial process in bacterial growth and serves as a primary target for many antibiotics.Mechanism of Action of Beta-Lactam AntibioticsBeta-lactam antibiotics, such as penicillin, inhibit peptidoglycan synthesis in actively growing cells. These antibiotics share a characteristic four-membered...
01:28Antimicrobial Effectiveness
The effectiveness of antimicrobial agents depends on various factors influencing their ability to eliminate microbial populations. Larger microbial populations require more time for complete eradication, emphasizing the importance of population size analysis when evaluating antimicrobial efficacy.Microbial resistance to antimicrobial agents varies significantly. Highly resilient microorganisms include endospores, gram-negative bacteria, and non-enveloped viruses, while prions are exceptionally...
01:29Staphylococcal Skin Infections
Staphylococcus aureus is a Gram-positive coccus that resides harmlessly on the skin and mucous membranes of healthy individuals. When the skin barrier is breached, it can shift from a commensal to an opportunistic pathogen. This transition is facilitated by surface adhesins, such as clumping factor B and S. aureus surface protein G (SasG), which bind to structural proteins, including loricrin and cytokeratin, in the damaged epidermis. Protein A, another key factor, binds the Fc region of...
01:23Antimicrobial Proteins
Antimicrobial proteins are important components of the immune system. They aid the body in combating pathogens by either killing them directly or hindering their replication processes. Four main types of antimicrobial substances are interferons, the complement system, iron-binding proteins, and antimicrobial proteins.
Interferons
Interferons (IFNs) are proteins produced by lymphocytes, macrophages, and fibroblasts infected with viruses. While IFNs cannot prevent viruses from entering and...
Interferons
Interferons (IFNs) are proteins produced by lymphocytes, macrophages, and fibroblasts infected with viruses. While IFNs cannot prevent viruses from entering and...
01:22Antiviral Nucleoside Inhibitors
Antiviral Nucleoside InhibitorsAntiviral nucleoside inhibitors are structural analogs of natural nucleosides that interfere with viral DNA or RNA synthesis. These compounds selectively target viral polymerases due to their resemblance to host nucleosides, thereby disrupting viral genome replication.Mechanism of Acyclovir ActionAcyclovir is a guanosine analog with a three-carbon acyclic side chain. It selectively targets herpes simplex virus type 1 (HSV-1), herpes simplex virus type 2 (HSV-2),...
01:25Inhibitors of Bacterial Protein Synthesis
Aminoglycosides constitute a highly potent class of bactericidal antibiotics that exert their antimicrobial effects by targeting the bacterial ribosome, specifically disrupting protein synthesis. These polycationic molecules consist of amino-modified sugars linked via glycosidic bonds to an aminocyclitol core such as 2-deoxystreptamine or streptamine. Their strong positive charges facilitate tight binding to the negatively charged phosphate backbone of ribosomal RNA (rRNA), primarily at the 16S...