FF Dipeptide Nanoparticle Conjugates for Targeted Cancer Delivery
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
There is an unmet need for efficient, biocompatible systems capable of targeted delivery of active moieties for therapeutic, imaging, and diagnostic purposes, particularly in cancer therapy, where existing delivery methods face challenges with stability and specificity.
Innovation Solution
Nanoparticle conjugates incorporating the self-assembling diphenylalanine (FF) dipeptide with bioactive moieties, such as somatostatin analogs, that form distinct nanometric structures through self-assembly and supramolecular co-assembly, enabling targeted delivery and binding to cancer cells.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If passive delivery systems are used for tumor targeting, then delivery to tumor tissue is achieved through EPR effect, but specificity and reduced nonspecific side effects are limited
Solution Approach 1:
The patent combines diphenylalanine self-assembling peptides with somatostatin analogs (PTR 3207) to create composite nanoparticle conjugates. This composite structure integrates the structural stability and self-assembly capability of FF peptides with the tumor-targeting specificity of somatostatin analogs, achieving both reliable tumor accumulation through EPR effect and active targeting through receptor binding
Solution Approach 2:
The nanoparticle conjugates perform multiple functions simultaneously: they exploit the EPR effect for passive tumor accumulation, bind to somatostatin receptors for active targeting, and provide a platform for drug delivery. This multi-functionality resolves the contradiction by combining passive and active targeting mechanisms in a single system
2Stability of the object's composition
If self-assembling diphenylalanine peptides are used to form nanoparticle structures, then structural organization and stability are improved, but complexity of conjugate design increases
Solution Approach 1:
The conjugate is divided into distinct functional segments: the diphenylalanine self-assembling module that forms the structural core, the linker that connects to the bioactive moiety, and the somatostatin analog for targeting. This segmentation allows each component to be optimized independently while maintaining overall stability
Solution Approach 2:
A linker molecule serves as an intermediary between the diphenylalanine peptide and the somatostatin analog, facilitating the conjugation while maintaining the self-assembling capability of the FF module and the bioactivity of the targeting agent. This intermediary approach simplifies the overall design by providing a modular connection strategy
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The FF-based nanoparticle conjugates effectively self-assemble into ordered nanostructures that can passively and actively target tumors, enhancing drug delivery and imaging capabilities while reducing nonspecific side effects.
Implementation Method 1
the diphenylalanine peptide (FF) is considered as a key recognition module, as this small elementary unit and its derivatives readily self-assemble to form spherical, fibrillar and tubular nanostructures through π-stacking and additional non-covalent interactions
Implementation Method 2
Self-assembling peptides are valuable building blocks that can be rationally designed to organize into a variety of supramolecular nanostructures
Implementation Method 3
readily self-assemble to form spherical, fibrillar and tubular nanostructures through π-stacking and additional non-covalent interactions
Implementation Method 4
Supramolecular co-assembly of different aromatic self-assembling building blocks allows the variation, complexity and functionality of the nanostructures
Implementation Method 5
The nanostructures formed by short peptides may possess molecular recognition properties
Implementation Method 6
Somatostatin acts on multiple cell targets via a family of five receptors (somatostatin receptors; SSTR1-5)
Data Source
AI summary
The present invention provides nanoparticle conjugates incorporating the self-assembling module diphenylalanine (FF) dipeptide into a bioactive moiety. The conjugate self-assembles to form distinct nanometric structures such as nanospheres. The present invention further provides nanoparticles formed by supramolecular co-assembly of the conjugates with a diphenylalanine (FF) dipeptide or analog thereof, to generate bioactive self-assembled nanostructures.