Selective or targeted gene/drug delivery for liver tumors: advantages and current status of local delivery

Young Il Kim1, Jin Wook Chung

  • 1Division of Interventional Radiology, Stanford University Medical Center, 300 Pasteur Drive, Stanford, CA 94305-5642, USA. yikim@stanford.edu

Insights

Targeted therapies for liver cancer improve treatment efficacy. This study explores localized drug delivery using image-guided procedures to enhance therapeutic effects and minimize toxicity in liver cancer treatment.

Area of Science:

  • Hepatology
  • Oncology
  • Medical Imaging

Background:

  • Liver disorders encompass metabolic diseases, hepatitis, cirrhosis, and cancer.
  • Effective treatment requires targeted delivery of therapeutic agents to specific liver cells.
  • Minimizing systemic toxicity and off-target effects is crucial for maximizing therapeutic outcomes.

Purpose of the Study:

  • To present novel therapeutic strategies for liver cancer.
  • To highlight clinical developments in localized drug and gene delivery for liver cancer.
  • To focus on advancements in image-guided procedures for targeted liver cancer therapy.

Main Methods:

  • Review of current literature on liver cancer therapeutics.
  • Analysis of strategies for targeted delivery to hepatocytes, Kupffer cells, and tumor endothelial cells.
  • Exploration of image-guided procedures for localized therapeutic agent administration.

Main Results:

  • Diverse strategies exist to improve the selectivity and efficiency of therapeutic delivery.
  • Localized delivery using image-guided procedures shows promise for enhanced liver cancer treatment.
  • Targeting specific liver cells can optimize therapeutic effects and reduce systemic toxicity.

Conclusions:

  • Image-guided localized delivery represents a significant advancement in liver cancer therapy.
  • Targeted approaches are essential for maximizing treatment efficacy while minimizing adverse effects.
  • Continued research into these strategies holds potential for improved patient outcomes in liver cancer.

Related Concept Videos

Modified-Release Drug Delivery Systems: Site-Targeted01:24

Modified-Release Drug Delivery Systems: Site-Targeted

Site-targeted drug delivery systems enhance therapeutic efficacy while minimizing systemic toxicity and treatment costs. Unlike conventional methods, these systems ensure precise drug delivery, improving bioavailability and reducing side effects. Targeted drug delivery is classified into three levels. First-order targeting directs drugs to the capillary beds of specific organs or tissues. Second-order targets specific cell types, such as tumor cells, using receptor-mediated interactions.
Targeted Cancer Therapies02:57

Targeted Cancer Therapies

The targeted cancer therapies, also known as “molecular targeted therapies,” take advantage of the molecular and genetic differences between the cancer cells and the normal cells. It needs a thorough understanding of the cancer cells to develop drugs that can target specific molecular aspects that drive the growth, progression, and spread of cancer cells without affecting the growth and survival of other normal cells in the body.
There are several types of targeted therapies against specific...
Targeted Cancer Therapies02:57

Targeted Cancer Therapies

The targeted cancer therapies, also known as “molecular targeted therapies,” take advantage of the molecular and genetic differences between the cancer cells and the normal cells. It needs a thorough understanding of the cancer cells to develop drugs that can target specific molecular aspects that drive the growth, progression, and spread of cancer cells without affecting the growth and survival of other normal cells in the body.
There are several types of targeted therapies against specific...
Site-Targeted Drug Delivery Systems: Polymeric Carriers01:24

Site-Targeted Drug Delivery Systems: Polymeric Carriers

Polymeric carriers enhance targeted drug delivery by increasing efficacy while minimizing off-target effects. These carriers comprise a biodegradable polymeric backbone integrated with functional elements that enable targeting, improve physicochemical properties, and regulate drug release.Targeting MechanismsThe targeting ability of polymeric carriers is mediated by a homing device, which is a molecular recognition component designed to selectively bind to specific tissues or cells. Monoclonal...
Gene Therapy00:59

Gene Therapy

Gene therapy is a technique where a gene is inserted into a person’s cells to prevent or treat a serious disease. The added gene may be a healthy version of the gene that is mutated in the patient, or it could be a different gene that inactivates or compensates for the patient’s disease-causing gene. For example, in patients with severe combined immunodeficiency (SCID) due to a mutation in the gene for the enzyme adenosine deaminase, a functioning version of the gene can be inserted. The...
Tissue-Drug Binding: Localization of Drugs and its Significance01:24

Tissue-Drug Binding: Localization of Drugs and its Significance

Body tissues, comprising approximately 40% of the body weight, are crucial in drug distribution and localization. These tissues can serve as drug storage sites, competing with plasma binding sites for drug molecules.
Drugs can bind to different tissue components, enhancing their distribution and localization. The factors influencing drug localization in tissues include the drug's lipophilicity, structural characteristics, tissue perfusion rate, and pH differences. These factors determine the...