Pacer-Overexpressing Mesenchymal Stem Cells for Inflammatory Disease Treatment
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Solution Overview
Problem
Current mesenchymal stem cell (MSC) therapies for inflammatory and immune-related disorders face challenges in maintaining cellular viability and immunomodulatory function due to host microenvironment modulation, leading to rapid differentiation and reduced therapeutic efficacy.
Innovation Solution
Genetically modifying MSCs to overexpress Pacer, a protein associated with autophagy and proteostasis, enhances their immunosuppressive properties and survival, thereby improving their therapeutic effects in inflammatory conditions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Duration of action of moving object
If MSCs are administered for tissue repair, then regenerative medicine benefits are achieved, but immunomodulatory function is reduced due to rapid differentiation
Solution Approach 1:
The patent changes the molecular parameter of MSCs by introducing overexpression of Pacer protein through genetic modification. This parameter change enables MSCs to maintain autophagy activation and immunomodulatory function while surviving longer in the host microenvironment, directly resolving the contradiction between survival duration and functional reliability.
Solution Approach 2:
Pacer acts as an intermediary protein that mediates between autophagy activation and immunomodulatory function. By overexpressing Pacer, MSCs can maintain the autophagy-IMC axis that is crucial for both survival and immunomodulatory activity, thus resolving the trade-off between these functions.
2Reliability
If MSCs are used to modulate immune response, then immunosuppressive effects are achieved, but cellular viability is reduced due to host microenvironment modulation
Solution Approach 1:
The patent modifies the molecular parameter of MSCs by overexpressing Pacer, which activates autophagy and protects cells from apoptosis induced by host microenvironment factors. This parameter change maintains both immunosuppressive function and cellular viability simultaneously.
Solution Approach 2:
Pacer overexpression provides beforehand protection against apoptotic signals from the host microenvironment by activating autophagy before cellular damage occurs. This cushioning effect preserves both viability and immunosuppressive function.
3Reliability
If MSCs are administered for inflammatory disease treatment, then therapeutic effects are achieved, but differentiation into specialized cells occurs rapidly
Solution Approach 1:
The patent changes the molecular parameter of MSCs by introducing Pacer overexpression, which maintains stemness and prevents premature differentiation. This parameter change ensures prolonged therapeutic activity while preserving the stem cell characteristics necessary for sustained immunomodulation.
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
Overexpression of Pacer in MSCs significantly enhances their ability to suppress T-cell proliferation and improve symptoms in inflammatory models, such as DSS-induced colitis, by increasing their immunosuppressive and therapeutic functions.
Implementation Method 1
Pacer is a new component of the autophagy pathway. Pacer gain-of function in Mesenchymal Stem Cells enhances its immunosuppressive function by suppressing the proliferation of T cells
Implementation Method 2
Pacer is a new component of the autophagy pathway and proteostasis
Implementation Method 3
MSC have been shown to suppress the immune system, through two principal mechanisms: i) secretion of different growth factors, cytokines and chemokines, and ii) immunosuppression by cell contact
Implementation Method 4
MSC secrete a great diversity of immunosuppressive factors, chemokines, and adhesion molecules, which are responsible for effective T cell suppression
Implementation Method 5
Pacer gain-of function in Mesenchymal Stem Cells enhances its immunosuppressive function by suppressing the proliferation of T cells, and the loss of its function generates the opposite effect, negatively modulating its immunosuppressive capacity. Interestingly, in cell death trials performed during the development of the invention, it was determined that Pacer overexpression protects these cells from cell death induced by Tumor necrosis factor α (TNFα)
Data Source
AI summary
The present invention provides Mesenchymal Stem Cells (MSC) genetically modified for overexpressing Pacer—a newly described autophagy protein—where these MSC have immunomodulatory effects. The invention also provides the method for obtaining the MSC overexpressing Pacer and pharmaceutical formulations comprising said cells.The MSC according to the invention are useful in the treatment of diseases with inflammatory origin and/or component.