Source 1primary paper2022Nature Communications
Toolkit/thermal gene switch
thermal gene switch
Also known as: tunable thermal bioswitches
Taxonomy: Mechanism Branch / Architecture. Workflows sit above the mechanism and technique branches rather than replacing them.
Summary
The paper describes focused-ultrasound (FUS) activation of engineered Escherichia coli Nissle 1917 (EcN) using a thermal gene switch for localized tumor immunotherapy.
Usefulness & Problems
Why this is useful
The thermal gene switch is the genetic control component that makes the engineered bacteria responsive to ultrasound-induced heating. It connects the external physical stimulus to bacterial gene-expression control.; temperature-responsive control of engineered bacterial gene expression; linking ultrasound-induced heating to bacterial therapeutic activation
Source:
The thermal gene switch is the genetic control component that makes the engineered bacteria responsive to ultrasound-induced heating. It connects the external physical stimulus to bacterial gene-expression control.
Source:
temperature-responsive control of engineered bacterial gene expression
Source:
linking ultrasound-induced heating to bacterial therapeutic activation
Problem solved
It solves the control-interface problem between an external stimulus and a microbial therapeutic program.; converts thermal input into controllable bacterial gene activation
Source:
It solves the control-interface problem between an external stimulus and a microbial therapeutic program.
Source:
converts thermal input into controllable bacterial gene activation
Problem links
converts thermal input into controllable bacterial gene activation
LiteratureIt solves the control-interface problem between an external stimulus and a microbial therapeutic program.
Source:
It solves the control-interface problem between an external stimulus and a microbial therapeutic program.
Published Workflows
Objective: Engineer a bacterial cancer immunotherapy platform that can be locally activated in tumors by ultrasound.
Why it works: The described control logic uses focused ultrasound to provide a local thermal input that activates a thermal gene switch in engineered bacteria, enabling localized tumor immunotherapy.
thermal gene-switch-mediated activationfocused ultrasound activationbacterial chassis engineering
Taxonomy & Function
Primary hierarchy
Mechanism Branch
Architecture: A reusable architecture pattern for arranging parts into an engineered system.
Mechanisms
thermal activation of gene expressionTechniques
No technique tags yet.
Target processes
No target processes tagged yet.
Input: Thermal
Implementation Constraints
cofactor dependency: cofactor requirement unknownencoding mode: genetically encodedimplementation constraint: context specific validationoperating role: actuator
It requires incorporation into engineered bacteria and a heating input such as focused ultrasound.; requires thermal stimulation compatible with the switch response range
Independent follow-up evidence is still limited. Validation breadth across biological contexts is still narrow. Independent reuse still looks limited, so the evidence base may be fragile. No canonical validation observations are stored yet, so context-specific performance remains under-specified.
Validation
Cell-freeBacteriaMammalianMouseHumanTherapeuticIndep. Replication
Supporting Sources
Ranked Claims
Focused ultrasound activates engineered Escherichia coli Nissle 1917 through a thermal gene switch for localized tumor immunotherapy.
The paper reports engineered bacteria that are controllable by ultrasound for cancer immunotherapy.
Approval Evidence
1 source1 linked approval claimfirst-pass slug thermal-gene-switch
The paper describes focused-ultrasound (FUS) activation of engineered Escherichia coli Nissle 1917 (EcN) using a thermal gene switch for localized tumor immunotherapy.
Source:
mechanism of controlsupports
Focused ultrasound activates engineered Escherichia coli Nissle 1917 through a thermal gene switch for localized tumor immunotherapy.
Source:
Comparisons
Source-stated alternatives
The summary identifies tunable thermal bioswitches as the directly enabling precursor technology for this control strategy.
Source:
The summary identifies tunable thermal bioswitches as the directly enabling precursor technology for this control strategy.
Source-backed strengths
enables external control logic compatible with focused ultrasound
Source:
enables external control logic compatible with focused ultrasound
Compared with GI norovirus VP1 virus-like particles
thermal gene switch and GI norovirus VP1 virus-like particles address a similar problem space.
Shared frame: same top-level item type; same primary input modality: thermal
Compared with PRS promoter-driven channelrhodopsin-2 lentiviral vector
thermal gene switch and PRS promoter-driven channelrhodopsin-2 lentiviral vector address a similar problem space.
Shared frame: same top-level item type; same primary input modality: thermal
Compared with sono-thermal promoter switch
thermal gene switch and sono-thermal promoter switch address a similar problem space.
Shared frame: same top-level item type; same primary input modality: thermal
Ranked Citations
- 1.