# Porcine Elastase (Sus scrofa domesticus)

**Canonical URL:** https://ingredients.hermeticasuperfoods.com/ingredients/porcine-elastase
**Data Source:** Hermetica Superfoods Ingredient Encyclopedia
**Updated:** 2026-04-03
**Evidence Score:** 2 / 10
**Category:** Enzyme
**Also Known As:** Sus scrofa domesticus elastase, Porcine pancreatic elastase, Pig elastase, PPE, Swine elastase, Pancreatic elastase (porcine), Elastase (Sus scrofa)

## Overview

Porcine elastase is a serine protease derived from pig pancreas (Sus scrofa domesticus) that cleaves elastin and other extracellular matrix proteins at hydrophobic residue sites. It is not used as a human supplement but serves exclusively as a research enzyme to model emphysema and chronic obstructive pulmonary disease in laboratory animals.

## Health Benefits

• No documented health benefits in humans - exclusively used as a research tool to induce emphysema in animal models (n=6 pigs, n=9 rats)
• Creates experimental lung damage by degrading elastin, increasing lung compliance by 37.6% in pigs
• Reduces alveolar surface area by ~14% in animal models (P<0.05)
• Used to study emphysema progression and test potential treatments in preclinical settings
• No clinical evidence supporting therapeutic use in humans

## Mechanism of Action

Porcine elastase functions as a serine protease that cleaves peptide bonds adjacent to small hydrophobic residues such as alanine and valine within elastin, fibronectin, and collagen IV of the extracellular matrix. By degrading alveolar elastin fibers, it disrupts the elastic recoil of lung tissue, activating downstream [inflammatory](/ingredients/condition/inflammation) cascades including neutrophil recruitment and matrix metalloproteinase (MMP-2, MMP-9) upregulation. This proteolytic activity increases lung static compliance by disrupting alveolar wall integrity, producing a measurable 37.6% increase in lung compliance in porcine models.

## Clinical Summary

No human clinical trials exist for porcine elastase as a therapeutic or supplemental intervention. Available evidence derives entirely from animal research, including studies in small cohorts of pigs (n=6) and rats (n=9) where intratracheal instillation was used to induce experimental emphysema. These studies quantified a roughly 14% reduction in alveolar surface area and a 37.6% increase in lung compliance, confirming reliable emphysema induction as a research model. The evidence base is preclinical only, and no dosage, efficacy, or safety data exist for human application.

## Nutritional Profile

Porcine Elastase is a purified serine protease enzyme protein derived from porcine (Sus scrofa domesticus) pancreatic tissue. As a highly purified enzymatic preparation, its nutritional contribution is negligible and not intended for nutritional use. Protein content: ~95-98% pure enzyme protein by weight in lyophilized form; molecular weight approximately 25.9 kDa (240 amino acid residues). Macronutrient breakdown per typical research-grade preparation: protein constitutes essentially 100% of dry mass with trace stabilizing excipients (e.g., sodium acetate buffer salts). No carbohydrates, lipids, or dietary fiber are present in purified preparations. Micronutrients: contains catalytic calcium ions (Ca²⁺) at approximately 1 binding site per enzyme molecule, essential for structural stability but not nutritionally significant at research doses (typically 0.1–2.0 U/kg in animal studies). Bioactive compounds: the enzyme itself is the sole bioactive component, with specific activity typically ranging from 1–10 units/mg protein (1 unit defined as hydrolysis of 1 µmol N-succinyl-Ala-Ala-Ala-p-nitroanilide per minute at pH 8.0, 25°C). Amino acid composition reflects typical pancreatic serine protease profile, rich in serine, histidine, and aspartate residues forming the catalytic triad. Bioavailability: not applicable for oral nutritional context; administered via intratracheal instillation or intravenous injection in research settings exclusively. Would be fully denatured and digested if ingested orally, yielding standard amino acids with no intact enzymatic activity.

## Dosage & Preparation

No clinically studied dosage ranges exist for human use. In animal research models only: 725-750 U/kg (single intratracheal instillation) in pigs, 400 IU/kg intratracheally in rats. No standardized forms for human supplementation have been developed. Consult a healthcare provider before starting any new supplement.

## Safety & Drug Interactions

Porcine elastase has no established safety profile for human consumption or supplementation, as it is exclusively a laboratory reagent. In animal models, administration causes progressive lung tissue destruction, irreversible alveolar damage, and sustained [inflammatory](/ingredients/condition/inflammation) infiltration, indicating significant pathological potential. No drug interaction data, contraindication profiles, or pregnancy safety assessments exist for human exposure. Any incidental human exposure to this enzyme would represent a biosafety concern rather than a therapeutic event, and it should not be confused with [digestive enzyme](/ingredients/condition/gut-health) supplements derived from porcine pancreatin.

## Scientific Research

No human clinical trials, RCTs, or meta-analyses were identified for porcine elastase as a therapeutic agent. Available research consists solely of animal studies using PPE to induce emphysema models, including a study in 6 Yucatan pigs (725-750 U/kg) and rat studies using 400 IU/kg intratracheal administration. No PMIDs were provided in the source material.

## Historical & Cultural Context

No evidence of traditional use in historical medicine systems was found. Porcine elastase is a modern biochemical tool developed for research purposes, not derived from ethnomedical practices.

## Synergistic Combinations

Alpha-1-antitrypsin (inhibitor), eglin-c (inhibitor), neutrophil elastase, pancreatic enzymes, proteolytic inhibitors

## Frequently Asked Questions

### Can humans take porcine elastase as a supplement?

No. Porcine elastase is a research-grade serine protease with no approved or documented use as a human supplement. Its mechanism of degrading elastin and extracellular matrix proteins means human administration would risk tissue destruction rather than any health benefit.

### What is porcine elastase used for in research?

Porcine elastase is instilled intratracheally in animal models, primarily pigs and rats, to reproducibly induce emphysema and model chronic obstructive pulmonary disease (COPD). It cleaves alveolar elastin, reducing alveolar surface area by approximately 14% and increasing lung compliance by 37.6%, creating a controlled experimental disease state.

### How does porcine elastase damage lung tissue?

Porcine elastase cleaves elastin at hydrophobic residue sites (alanine, valine), dismantling the alveolar wall scaffold and triggering secondary neutrophil infiltration and MMP-9 upregulation. This proteolytic cascade is self-amplifying, as recruited neutrophils release endogenous elastase, further degrading remaining connective tissue and expanding alveolar spaces characteristic of emphysema.

### Is porcine elastase the same as digestive enzyme supplements from pork?

No. Although both originate from porcine pancreas, porcine elastase is a purified, isolated serine protease used only in laboratory settings. Porcine-derived digestive enzyme supplements (pancreatin) contain a broad mixture of lipase, amylase, and proteases formulated for human gastrointestinal use, and they are not equivalent to purified research-grade elastase.

### What animal models use porcine elastase and what are the results?

Studies have used intratracheal porcine elastase instillation in pigs (n=6) and rats (n=9) to generate emphysema models. Quantified outcomes include a 37.6% increase in static lung compliance and approximately 14% reduction in alveolar surface area, with statistically significant results (P<0.05) confirming reliable disease induction for pulmonary research purposes.

### Is porcine elastase approved by the FDA as a dietary supplement?

Porcine elastase is not approved or marketed as a dietary supplement for human consumption by the FDA. It is exclusively available and used as a research-grade reagent for laboratory and preclinical animal studies. No commercial supplement formulations containing porcine elastase exist because it has no established human health applications outside of experimental research settings.

### Why do researchers use porcine elastase instead of human elastase in emphysema studies?

Porcine elastase is preferred in research because it is cost-effective, readily available, and biochemically similar enough to human elastase to reliably induce comparable lung damage in animal models. Its consistent ability to degrade elastin and produce reproducible emphysema-like pathology in both rats and pigs makes it a standardized tool for testing potential therapeutic interventions before human trials. The well-characterized dose-response relationship in animal studies also allows researchers to control the severity and progression of experimental lung disease.

### What is the difference between porcine elastase used in research versus pancreatic elastase from pork digestive enzyme supplements?

Research-grade porcine elastase is a highly purified, pharmaceutically manufactured protein specifically designed to degrade elastin in lung tissue for experimental purposes, whereas pancreatic elastase in digestive supplements is formulated to break down elastin in food during digestion. The research form is not intended for human consumption and would be unsafe to ingest, while pancreatic elastase supplements are designed for oral use and function in the gastrointestinal tract rather than the respiratory system. The two products are produced differently, have different purity levels, and serve entirely different purposes.

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