Topical Polypeptide Formulations for Scar Reduction and Skin Repair

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Solution Overview

Problem

Current treatments for burns and deep wounds, such as those caused by scalds or cuts, often result in scar hyperplasia and require surgical interventions, lacking effective topical drugs that can inhibit scar formation and promote healing without significant side effects.

Innovation Solution

A polypeptide with a specific 15-amino acid sequence (SEQ ID No:1) is used in topical formulations, including liquid, ointment, and gel forms, at a concentration of 0.01% to 0.1% wt, to inhibit scar hyperplasia and promote skin repair.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If growth factor gel (rh-EGF, rh-bFGF) is used to treat burns and deep wounds, then wound healing is promoted, but scar hyperplasia occurs

Engineering Contradiction:
Improvewound healing rateVSAvoidscar hyperplasia
Core Design Contradiction:
ProductivityVSObject-generated harmful factors

Solution Approach 1:

The patent uses a different type of polypeptide (15-amino acid sequence) with modified molecular parameters compared to conventional growth factors like rh-EGF and rh-bFGF. This parameter change in the therapeutic agent's structure enables promotion of wound healing while reducing scar hyperplasia formation.

Inventive Principle:
Principle #35Parameter changes

Solution Approach 2:

The invention combines the 15-amino acid polypeptide with gel base materials to create a composite topical preparation. This composite formulation delivers the active polypeptide effectively to the wound site while maintaining stability and controlled release, achieving both healing promotion and scar reduction.

Inventive Principle:
Principle #40Composite materials

2Reliability

If surgical skin grafting is used for third and fourth degree burns, then wound repair is achieved, but treatment complexity and patient suffering increase

Engineering Contradiction:
Improvewound repair effectivenessVSAvoidtreatment procedure complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent extracts and utilizes only the essential 15-amino acid sequence from larger polypeptide structures, creating a minimized active fragment. This extracted core sequence maintains therapeutic effectiveness for wound repair while eliminating the need for complex surgical procedures like skin grafting.

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The topical polypeptide preparation enables the wound to heal through its own regenerative capabilities without requiring external skin grafts or flaps. The polypeptide stimulates the body's natural healing processes, allowing the tissue to repair itself topically rather than requiring surgical intervention.

Inventive Principle:
Principle #25Self-service

3Productivity

If polypeptide content is increased in topical formulation, then therapeutic effect is improved, but cost and potential side effects increase

Engineering Contradiction:
Improvetherapeutic effectVSAvoidtoxicity and side effects
Core Design Contradiction:
ProductivityVSObject-affected harmful factors

Solution Approach 1:

The patent optimizes the polypeptide concentration parameter to achieve maximum therapeutic effect at minimal effective doses (0.1-10 μg/mL). This parameter optimization ensures high productivity in wound healing while maintaining safety by avoiding excessive concentrations that could cause toxicity or side effects.

Inventive Principle:
Principle #35Parameter changes

Data Source

PatentUS12447191B2Topical application of polypeptide in the treatment of skin damage
Publication Date: 2025.10.21 WUHAN YICHENG BIOTECH CO LTD
  • US12447191B2 patent drawing
  • US12447191B2 patent drawing
  • US12447191B2 patent drawing

AI summary

The invention discloses a polypeptide for topical treatment on skin damages resulting from various causes such as burns, wounds or cuts. The polypeptide topical drugs in different dosage forms have good therapeutic effect on scald models and trauma models of animals with little toxic and side effects, and is an innovative drug with good development prospects, and is effective in topical application in treating skin damages resulting from various causes such as burns, wounds or cuts; safe; low toxic and quality controllable.