Enhanced Cancer Therapeutic Methods Utilizing Modified OPCML Fragments

Publication ID: 24-11857624_0006_PTD
Published: October 28, 2025
Category:Direct Improvements & Enhancements

Legal Citation

pr1or.art Inc., “Enhanced Cancer Therapeutic Methods Utilizing Modified OPCML Fragments,” Published Technical Disclosure No. 24-11857624_0006_PTD, Published October 28, 2025, available at https://archive.pr1or.art/24-11857624_0006_PTD
This technical disclosure describes improvements that would be readily apparent to a Person Having Ordinary Skill In The Art (PHOSITA) when considered in combination with the foundational architecture disclosed in U.S. Patent No. 11,857,624.

Summary of the Inventive Concept

The present inventive concept relates to improved cancer therapeutic methods utilizing modified OPCML fragments with enhanced tumor suppressor activity, targeted delivery, and personalized treatment approaches.

Background and Problem Solved

The original patent disclosed the role of OPCML in cancer prognosis, theragnosis, treatment, and research, but had limitations in terms of efficacy, delivery, and patient selection. The present inventive concept addresses these limitations by introducing modified OPCML fragments with improved tumor suppressor activity, conjugated to nanoparticles for targeted delivery, and personalized treatment approaches based on patient genetic profiles and tumor characteristics.

Detailed Description of the Inventive Concept

The inventive concept comprises a system for cancer treatment utilizing a polypeptide comprising a modified fragment of OPCML, which exhibits improved tumor suppressor activity compared to the unmodified fragment. Additionally, the inventive concept includes methods for enhancing the efficacy of OPCML-based cancer therapy by administering the modified fragment in combination with a chemotherapeutic agent. Furthermore, the inventive concept encompasses compositions for treating cancer, wherein the modified fragment is conjugated to a nanoparticle for targeted delivery to cancer cells. The inventive concept also includes methods for identifying patients likely to respond to OPCML-based cancer therapy by analyzing biological samples for expression levels of OPCML and/or its downstream targets. Moreover, the inventive concept comprises a system for personalized cancer treatment, wherein the modified fragment is selected based on the patient's genetic profile and/or tumor characteristics.

Novelty and Inventive Step

The novelty of the present inventive concept lies in the modification of the OPCML fragment to enhance its tumor suppressor activity, the conjugation of the modified fragment to nanoparticles for targeted delivery, and the personalized treatment approaches based on patient genetic profiles and tumor characteristics. The inventive step is the combination of these features, which provides a significant improvement over the original patent.

Alternative Embodiments and Variations

Alternative embodiments of the inventive concept could include the use of different types of nanoparticles, varying the conjugation methods, or utilizing different chemotherapeutic agents. Variations of the inventive concept could also include the use of different genetic profiles or tumor characteristics for personalized treatment approaches.

Potential Commercial Applications and Market

The present inventive concept has significant commercial potential in the cancer therapeutic market, with potential applications in treating various types of cancer, including HER2-positive and HER2-negative cancer tumors. The targeted delivery and personalized treatment approaches could provide a competitive advantage in the market, with potential partnerships with pharmaceutical companies, research institutions, and hospitals.

CPC Classifications

SectionClassGroup
A A61 A61K39/39558
A A61 A61K31/404
A A61 A61K31/506
A A61 A61K31/517
A A61 A61K31/555
A A61 A61K31/7064
A A61 A61K38/1774
A A61 A61K45/06
C C07 C07K16/28
C C07 C07K16/2863
C C07 C07K16/32
C C12 C12Q1/6886
C C12 C12Q2600/118
C C12 C12Q2600/156
C C12 C12Q2600/158

Field of Art

Oncology, molecular biology, and cancer therapeutics, with expertise in protein fragment design, targeted drug delivery, and personalized medicine approaches involving tumor suppressor proteins

Person of Ordinary Skill (PHOSITA) Profile

A researcher or medical scientist with advanced degrees in molecular biology or oncology, familiar with protein engineering techniques, cancer treatment strategies, and current approaches to targeted therapeutic interventions

Obviousness Rationale

A person having ordinary skill in the art would recognize that modifying OPCML fragments to enhance tumor suppressor activity, combining with chemotherapeutic agents, and developing targeted delivery mechanisms are predictable extensions of the source patent's core teachings about OPCML cancer therapy. The modifications represent standard approaches in protein therapeutic design that would be apparent to a skilled practitioner seeking to optimize the original invention's therapeutic potential.

Obvious Combinations & Variations

Source Patent Element
OPCML fragment therapy for cancer treatment (claims 1-3)
PTD Variation
Modified OPCML fragment with enhanced tumor suppressor activity
Obviousness Reasoning
Protein engineering to improve therapeutic efficacy is a routine practice in biotechnology, with predictable outcomes for skilled practitioners seeking to optimize protein function
Source Patent Element
Fusion of OPCML fragment to non-OPCML polypeptide (claim 5)
PTD Variation
Conjugation of OPCML fragment to nanoparticles for targeted delivery
Obviousness Reasoning
Targeted drug delivery using nanoparticle conjugation is a well-established technique in cancer therapeutics, representing an obvious extension of existing fusion protein strategies
Source Patent Element
Cancer treatment method using OPCML fragment
PTD Variation
Personalized treatment approach based on genetic profile and tumor characteristics
Obviousness Reasoning
Precision medicine approaches that tailor treatment to individual patient characteristics are a standard evolution in cancer therapeutic strategies
Source Patent Element
OPCML fragment as cancer therapeutic
PTD Variation
Combination of OPCML fragment with chemotherapeutic agents
Obviousness Reasoning
Combination therapy is a standard approach in oncology for enhancing treatment efficacy, representing a predictable optimization of existing therapeutic methods
Source Patent Element
Cancer treatment using OPCML fragment
PTD Variation
Method for identifying patient response through biomarker analysis
Obviousness Reasoning
Biomarker-based patient selection is a routine technique in developing targeted therapies, representing an obvious approach to improving treatment outcomes
35 U.S.C. § 103 Summary: Based on the teachings of US Patent 11857624, a person having ordinary skill in the art would find the variations disclosed herein to be obvious extensions of the prior art. The modifications represent predictable variations in protein therapeutic design, targeted delivery, and personalized medicine approaches that would be apparent to a skilled practitioner seeking to optimize cancer treatment strategies.

Original Patent Information

Patent NumberUS 11,857,624
TitleCancer therapeutic methods utilizing OPCML fragment
Assignee(s)PAPYRUS THERAPEUTICS, INC.