Custom Cough Model Development Services for Preclinical Research
Ace Therapeutics understands that a successful journey from drug discovery to clinical application begins with a robust and predictive preclinical foundation. Chronic cough, including refractory or unexplained chronic cough, represents a significant unmet medical need, driving the demand for translational research models. We specialize in providing custom cough model development services tailored to the specific mechanisms of your drug candidate.
Standardized models are useful for screening, but they often fail to capture the nuances of specific disease endotypes. A custom approach ensures that your efficacy data is relevant to your target patient population, whether that involves neurogenic inflammation, airway hyperresponsiveness, or cough hypersensitivity syndrome.
We offer a diverse range of established and customizable cough models to suit various research objectives. Our models are characterized using state-of-the-art techniques to ensure reproducibility and translational relevance.
| Model Type | Induction Method | Typical Readouts & Applications |
| Guinea Pig Cough Model | Inhalation of tussive agents (e.g., citric acid, capsaicin, bradykinin) | The gold standard for cough research. We assess cough frequency, latency, and expiratory parameters. Ideal for testing antitussives targeting peripheral or central pathways. |
| Guinea Pig Chronic Cough Model | Combination of allergen sensitization (e.g., ovalbumin) or pollutant exposure (e.g., cigarette smoke) with tussive challenges | Models cough hypersensitivity associated with inflammatory conditions. Allows for longitudinal assessment of airway inflammation and cough sensitivity. |
| Murine Cough Reflex Model | Conscious or anesthetized challenges with agents like capsaicin or ATP | While mice do not cough as readily as guinea pigs, we utilize refined techniques to assess respiratory reflexes and sensory nerve activation, suitable for early target validation. |
| In Vitro Vagal Nerve & Sensory Neuron Models | Primary culture of jugular/nodose ganglia neurons from rodents | High-throughput screening compatible. We measure calcium influx, action potential firing, and neurotransmitter release to assess direct effects on the cough reflex arc. |
A model is only as valuable as the data it produces. To maximize the insights from your study, we offer a suite of integrated downstream services that can be layered onto any of our model platforms. This creates a complete, end-to-end solution for your preclinical needs.
| Service Category | Description & Key Endpoints |
| Pharmacodynamic (PD) Assessment | Quantification of drug exposure and target engagement in plasma and lung tissue. |
| Airway Inflammation Profiling | Bronchoalveolar Lavage Fluid (BALF) Analysis: Total and differential cell counts (macrophages, neutrophils, eosinophils, lymphocytes). Cytokine/Chemokine Multiplex Assays: Measurement of key inflammatory mediators in BALF and serum. |
| Histopathology & Immunohistochemistry | H&E and PAS staining for general morphology and goblet cell hyperplasia. Immunostaining for nerve fiber density (e.g., PGP9.5) and neuropeptides (e.g., Substance P, CGRP). |
| Lung Function Testing | Assessment of airway hyperresponsiveness (AHR) via whole-body plethysmography (e.g., PenH) or invasive resistance/compliance measurements. |
The "one-size-fits-all" approach is often insufficient in respiratory research. Our core strength lies in our ability to adapt. We invite you to discuss the following aspects of your project:
Effective preclinical modeling is the cornerstone of successful respiratory drug development. At Ace Therapeutics, we are committed to providing the scientific excellence, operational flexibility, and collaborative spirit required to tackle the toughest challenges in cough research.
What is the primary species used for cough model development, and why?
The guinea pig is the most widely accepted and utilized species for cough research. Their cough reflex physiology, including the sensitivity of vagal nerve fibers to tussive agents, closely resembles that of humans. While other species can exhibit cough-like reflexes, guinea pigs provide the most reliable and quantifiable cough response for efficacy testing.
Can you develop a model for refractory chronic cough specifically?
Yes. We are actively developing models that explore the concept of cough hypersensitivity syndrome (CHS). By using chronic challenge protocols or combining low-grade inflammation with sensory nerve stimulants, we can induce a state of heightened cough sensitivity that is not easily reversed by standard therapies, allowing for the evaluation of novel agents targeting neuronal dysfunction.
How do you measure cough in conscious animals?
We utilize a combination of validated methods. This primarily involves specialized, sound-attenuated chambers connected to a bias flow ventilator. A microphone and pressure transducer detect the unique sound and pressure changes associated with a cough. These signals are then analyzed by specialized software and, crucially, are manually verified by trained observers to distinguish coughs from sneezes or other movements, ensuring high-fidelity data.
Can you assess the effect of a drug on the central nervous system pathways of cough?
Absolutely. Our in vitro models using primary vagal sensory neurons allow us to directly assess the effects of a compound on neuronal excitability and neurotransmitter release. For in vivo work, we can also collect and analyze specific brainstem regions (nTS) for target engagement or downstream signaling changes.
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Ace Therapeutics is a preclinical research organization focused on respiratory diseases. We provide validated models and rigorous analysis services to support the development of novel therapeutics, from concept to preclinical insight.