PD-ECGF Biomarker for Renal Cell Carcinoma Diagnosis

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Solution Overview

Problem

Current methods for diagnosing and prognosing renal cell carcinoma (RCC) lack effective biomarkers, leading to inadequate treatment responses and potential toxicity from therapies with unknown effectiveness.

Innovation Solution

The use of PD-ECGF as a biomarker for diagnosing cancer and predicting the response to anti-angiogenic therapies, determined through methods such as immunohistochemistry, ELISA, and western blotting, to assess PD-ECGF levels in tissue and plasma samples.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If current diagnostic methods are used for renal cell carcinoma, then existing biomarkers can be measured, but the diagnostic precision and treatment prediction capability are insufficient

Engineering Contradiction:
Improvediagnostic precisionVSAvoidtreatment prediction reliability
Core Design Contradiction:
Measurement precisionVSReliability

Solution Approach 1:

The patent identifies and measures PD-ECGF protein levels as a new biomarker parameter, changing from traditional biomarkers to this specific parameter that provides both diagnostic precision and treatment prediction capability for renal cell carcinoma

Inventive Principle:
Principle #35Parameter changes

Solution Approach 2:

The patent replaces traditional histology-based classification and existing biomarker systems with PD-ECGF protein measurement, substituting the old diagnostic mechanism with a more precise molecular marker system

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

2Ease of operation

If therapies are administered without reliable biomarker guidance, then treatment can be provided, but potential toxicity occurs with unknown effectiveness

Engineering Contradiction:
Improvetreatment accessibilityVSAvoidtherapy toxicity
Core Design Contradiction:
Ease of operationVSObject-affected harmful factors

Solution Approach 1:

The patent performs preliminary measurement of PD-ECGF protein levels before initiating anti-angiogenic therapy, enabling advance identification of patients who are likely to respond to treatment and those who may experience toxicity, allowing pre-treatment risk assessment

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The patent establishes a feedback mechanism where PD-ECGF levels are measured to guide treatment decisions, creating a closed-loop system where biomarker information continuously informs therapy selection and monitoring to minimize toxicity

Inventive Principle:
Principle #23Feedback

3Measurement precision

If PD-ECGF levels are measured in cancer patients, then diagnostic accuracy improves, but the complexity of the diagnostic process increases

Engineering Contradiction:
Improvecancer detection accuracyVSAvoiddiagnostic process complexity
Core Design Contradiction:
Measurement precisionVSDevice complexity

Solution Approach 1:

The patent uses PD-ECGF protein as an intermediary biomarker that bridges the gap between traditional diagnostic methods and treatment prediction, serving as a measurable mediator that provides information about both disease presence and treatment response likelihood

Inventive Principle:
Principle #24Intermediary (Mediator)

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

PD-ECGF has been shown to be highly expressed in RCC and breast cancer tissues, and elevated plasma levels correlate with early progression in colorectal and RCC patients, indicating its potential as a novel biomarker for cancer detection, diagnosis, and prediction of treatment response.

Implementation Method 1

determining the levels of PD-ECGF in a sample from the subject

Methodology Applied
Scientific EffectAntibody-antigen binding:

Data Source

PatentUS12298307B2PD-ECGF as biomarker of cancer
Publication Date: 2025.05.13 FUNDACIO INSTITUT D INVESTIGACIO BIOMEDICA DE BELLVITGE (IDIBELL)
  • US12298307B2 patent drawing
  • US12298307B2 patent drawing
  • US12298307B2 patent drawing

AI summary

The present invention corresponds to the field of cancer and is related to predicting cancer detection, diagnosis, monitoring and prediction of response to treatment, in particular platelet derived-endothelial cell growth factor (PD-ECGF) levels for their use as a potential value in monitoring disease evolution and predicting response to anti-angiogenic treatment.