Revolutionizing Tumor Infiltrating Lymphocyte Restimulation for Enhanced Anti-Tumor Efficacy

Publication ID: 24-11857573_0010_PTD
Published: October 28, 2025
Category:Future Evolutions & Paradigm Shifts

Legal Citation

pr1or.art Inc., “Revolutionizing Tumor Infiltrating Lymphocyte Restimulation for Enhanced Anti-Tumor Efficacy,” Published Technical Disclosure No. 24-11857573_0010_PTD, Published October 28, 2025, available at https://archive.pr1or.art/24-11857573_0010_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. 11,857,573.

Summary of the Inventive Concept

A next-generation approach to restimulating cryopreserved tumor infiltrating lymphocytes, leveraging metabolic reconditioning, personalized neoantigen-based vaccines, and advanced monitoring and prediction tools to unlock unprecedented anti-tumor potency and patient outcomes.

Background and Problem Solved

The original patent, 'Restimulation of cryopreserved tumor infiltrating lymphocytes,' demonstrated the potential of adoptive transfer of tumor infiltrating lymphocytes (TILs) for treating bulky, refractory cancers. However, the current approach has limitations, including suboptimal TIL viability, anti-tumor efficacy, and patient-specific variability. The new inventive concept addresses these limitations by introducing a paradigm shift in TIL restimulation, enabling more effective and personalized cancer therapies.

Detailed Description of the Inventive Concept

The inventive concept encompasses a system for rejuvenating cryopreserved TILs, comprising a metabolic reconditioning module that adjusts glycolytic and mitochondrial metabolic pathways to optimize T cell viability and anti-tumor efficacy. Additionally, the concept includes a method for generating personalized neoantigen-based vaccines, wherein cryopreserved TILs are restimulated with patient-specific neoantigen libraries to induce robust and durable anti-tumor immune responses. Furthermore, the concept involves a composition of matter comprising cryopreserved TIL products restimulated with small molecule inhibitors of glycolysis and activators of mitochondrial biogenesis, resulting in enhanced anti-tumor potency. The concept also includes a device for real-time monitoring of TIL metabolism during restimulation, featuring a microfluidic chamber and sensor array for detecting changes in glycolytic flux, mitochondrial membrane potential, and ATP production. Finally, the concept incorporates a computer-implemented method for predicting TIL restimulation outcomes, utilizing machine learning algorithms that integrate genomic, transcriptomic, and metabolomic data from cryopreserved TILs to identify optimal restimulation protocols for individual patients.

Novelty and Inventive Step

The new claims introduce a novel, non-obvious approach to TIL restimulation, leveraging metabolic reconditioning, personalized neoantigen-based vaccines, and advanced monitoring and prediction tools. These innovations overcome the limitations of the original patent, enabling more effective, personalized, and adaptive cancer therapies.

Alternative Embodiments and Variations

Alternative embodiments of the inventive concept could include variations in the metabolic reconditioning module, such as using different small molecule inhibitors or activators, or incorporating additional signaling pathways. Additionally, the personalized neoantigen-based vaccine approach could be adapted for use with other types of immune cells or cancer therapies. The real-time monitoring device could be modified to detect different metabolic parameters or integrated with other analytical tools. The computer-implemented prediction method could be expanded to incorporate additional data sources or machine learning algorithms.

Potential Commercial Applications and Market

The inventive concept has significant commercial potential in the cancer immunotherapy market, with applications in adoptive T cell therapy, personalized neoantigen-based vaccines, and companion diagnostics. The market for cancer immunotherapies is rapidly growing, with projected values exceeding $100 billion by 2025. The inventive concept's ability to enhance anti-tumor efficacy, improve patient outcomes, and provide personalized treatment options positions it for significant market share and revenue potential.

Field of Art

Immunotherapy, cellular oncology, and tumor infiltrating lymphocyte (TIL) manipulation techniques, requiring advanced knowledge in cellular biology, immunology, and cancer treatment methodologies

Person of Ordinary Skill (PHOSITA) Profile

A PhD-level researcher with expertise in immunology, cell culture techniques, cancer immunotherapy, and experience in TIL expansion, cryopreservation, and restimulation protocols

Obviousness Rationale

A PHOSITA would recognize that the PTD's metabolic reconditioning and personalized neoantigen approaches represent predictable extensions of existing TIL restimulation techniques. The proposed innovations leverage well-established principles of cellular metabolism and immunological targeting, applying known scientific strategies to enhance the existing TIL expansion methodology. The technical variations represent incremental improvements that would be obvious to a skilled practitioner seeking to optimize TIL-based cancer therapies.

Obvious Combinations & Variations

Source Patent Element
Cryopreservation and expansion of tumor infiltrating lymphocytes from dissociated tumor materials
PTD Variation
Metabolic reconditioning module adjusting glycolytic and mitochondrial metabolic pathways to optimize T cell viability
Obviousness Reasoning
Metabolic manipulation of immune cells is a known technique in cellular immunology, representing a predictable approach to enhancing cell performance and survival
Source Patent Element
Thawing and expanding TIL populations from cryopreserved tumor materials
PTD Variation
Personalized neoantigen-based vaccine approach using patient-specific neoantigen libraries for TIL restimulation
Obviousness Reasoning
Targeted immunotherapy using patient-specific antigens is a well-established strategy in cancer treatment, representing an obvious extension of existing TIL manipulation techniques
Source Patent Element
Multiple expansion cycles of TIL populations
PTD Variation
Real-time monitoring device with microfluidic chamber and sensor array for detecting metabolic changes during TIL restimulation
Obviousness Reasoning
Implementing advanced monitoring techniques for cellular processes is a predictable technological progression in biomedical research
Source Patent Element
Cryopreservation of TIL populations for potential future use
PTD Variation
Machine learning algorithm integrating genomic, transcriptomic, and metabolomic data to predict optimal restimulation protocols
Obviousness Reasoning
Computational prediction of cellular behavior using multi-omics data is a standard approach in contemporary biomedical research
Source Patent Element
Expansion and transfer of TIL populations for potential therapeutic use
PTD Variation
Composition of TILs restimulated with small molecule inhibitors of glycolysis and mitochondrial biogenesis activators
Obviousness Reasoning
Pharmacological modulation of cellular metabolism represents a known strategy for enhancing immune cell performance
35 U.S.C. § 103 Summary: Based on the teachings of US Patent 11857573 and the published technical disclosure, a person of ordinary skill in the art would find the claimed variations obvious, as they represent predictable extensions of existing TIL restimulation methodologies. The proposed innovations constitute obvious combinations of known techniques in cellular immunology, metabolic engineering, and personalized cancer therapy, rendering subsequent claims of novelty invalid under 35 U.S.C. Section 103.

Original Patent Information

Patent NumberUS 11,857,573
TitleRestimulation of cryopreserved tumor infiltrating lymphocytes
Assignee(s)Iovance Biotherapeutics, Inc.