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Lipid Remodeling and Metabolic Adaptation in Cancer Cell Membranes: A Platform for Membrane-Targeted Nanotherapy
Adriana Cruz1, Vasco D B Bonifácio2,3
1iBB-Institute for Bioengineering and Biosciences, and Associate Laboratory i4HB-Institute for Health and Bioeconomy, Instituto Superior Técnico, Lisbon, Portugal. adriana.b.cruz@tecnico.ulisboa.pt.
Abstract:
Metabolic reprogramming in cancer cells induces profound alterations in membrane lipid organization, affecting phospholipid distribution, surface charge, and overall lipid composition. These modifications contribute to key oncogenic processes, including tumor progression, immune evasion, and resistance to therapy. Importantly, they also give rise to distinct biophysical features that may serve as selective targets for therapeutic intervention. Among these, the externalization of anionic phospholipids and the overexpression of negatively charged glycoconjugates render cancer cell membranes particularly susceptible to cationic membrane-active agents. Cationic anticancer peptides (ACPs) and their synthetic mimics (SMACPs) have emerged as promising candidates for selectively disrupting malignant membranes; however, limitations related to stability, bioavailability, and toxicity have restricted their clinical utility. To address these challenges, nanotherapeutic platforms-particularly dendrimers-have emerged as promising tools to enhance peptide delivery, enable precise targeting, and support multifunctional therapeutic strategies. Dendrimers, including the most recent class of polyurea (PURE) dendrimers, feature modular and biodegradable architectures that enable concurrent drug delivery, gene silencing, and imaging functionalities. This chapter examines how membrane lipid remodeling contributes to cancer pathophysiology and highlights recent advances in dendrimer-based nanocarriers as precision tools for exploiting membrane-associated vulnerabilities in oncology.
Insights
Cancer cells reprogram metabolism, altering cell membranes for tumor growth and therapy resistance. Dendrimer nanocarriers offer precision targeting to exploit these membrane vulnerabilities for novel cancer treatments.
Area of Science:
- Oncology
- Biophysics
- Nanotechnology
Background:
- Metabolic reprogramming in cancer cells significantly alters membrane lipid organization, affecting phospholipid distribution, surface charge, and composition.
- These membrane modifications are crucial for oncogenic processes like tumor progression, immune evasion, and therapeutic resistance.
- The altered membrane biophysical features, such as externalized anionic phospholipids, present unique targets for therapeutic intervention.
Purpose of the Study:
- To examine how membrane lipid remodeling contributes to cancer pathophysiology.
- To highlight advances in dendrimer-based nanocarriers for exploiting cancer cell membrane vulnerabilities.
- To explore the potential of dendrimers in precision oncology.
Main Methods:
- Review of literature on cancer cell membrane alterations due to metabolic reprogramming.
- Analysis of the properties of cationic anticancer peptides (ACPs) and synthetic mimics (SMACPs).
- Investigation of nanotherapeutic platforms, specifically dendrimers (including polyurea dendrimers), for drug delivery, gene silencing, and imaging.
Main Results:
- Cancer cell membranes exhibit distinct biophysical features, including externalized anionic phospholipids and charged glycoconjugates, making them susceptible to cationic agents.
- Dendrimers, with their modular and biodegradable architectures, can enhance the delivery, targeting, and functionality of therapeutic agents like ACPs.
- Polyurea (PURE) dendrimers offer multifunctional capabilities for concurrent drug delivery, gene silencing, and imaging.
Conclusions:
- Membrane lipid remodeling is a critical aspect of cancer pathophysiology with implications for treatment resistance.
- Dendrimer-based nanocarriers represent promising precision tools for targeting cancer cell membrane vulnerabilities.
- Further development of dendrimer-based nanotherapeutics holds potential for advancing oncology treatments.
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