---
title: "Capítulo 8: Péptidos antimicrobianos (PAMs) y su rol en la defensa inmune de los peces"
description: "Péptidos antimicrobianos en peces teleósteos: tipos, mecanismos de acción y relevancia de las catelicidinas frente a Piscirickettsia salmonis en salmónidos."
image: https://www.mnl-group.com/hubfs/AI-Generated%20Media/Images/Atlantic%20Salmon%20Skin%20Macro%20with%20Mucus%20Texture%20and%20Water%20Droplets-1.png
---

[Skip to content](https://www.mnl-group.com/es/blog/salmon-immunology-series-capitulo-8-peptidos-antimicrobianos-pams-peces#main-content)

[![Logo MNL Group](https://www.mnl-group.com/hubfs/Logo_MNLGROUP-3.svg "Logo MNL Group")](https://mnl-group.com/?hsLang=es)

- Maqui Berry 
  
    - [The Maqui](https://www.mnl-group.com/en/maqui?hsLang=es)
    - [What is Maqui Berry](https://www.mnl-group.com/en/what-is-maqui?hsLang=es)
    - [Science Behind Maqui-Berry](https://www.mnl-group.com/en/science-behind-maqui?hsLang=es)
- Products 
  
    - [Delphinol®](https://www.mnl-group.com/en/delphinol?hsLang=es)
    - [MaquiBright®](https://www.mnl-group.com/en/maquibright?hsLang=es)
    - [Maqui XT®](https://www.mnl-group.com/en/maqui-xt?hsLang=es)
    - [Freeze-Dried Maqui](https://www.mnl-group.com/en/freeze-dried-maqui-berry-powder?hsLang=es)
    - [Futerpenol®](https://www.mnl-group.com/en/futerpenol?hsLang=es)
- Company 
  
    - [About MNL Group](https://www.mnl-group.com/en/company?hsLang=es)
    - [Global Partners & Clients](https://www.mnl-group.com/en/global-partners-clients?hsLang=es)
    - [Sustainability & Sourcing](https://www.mnl-group.com/en/sustainability-sourcing?hsLang=es)
    - [Our Process](https://www.mnl-group.com/en/process?hsLang=es)
- [Clinical Studies](https://www.mnl-group.com/en/clinical-studies?hsLang=es)
- [Find Products](https://www.mnl-group.com/en/find-products?hsLang=es)
- [News & Articles](https://www.mnl-group.com/en/blog?hsLang=es)
- [Contact](https://www.mnl-group.com/en/contact?hsLang=es)
- <https://www.linkedin.com/company/mnl-group-cl>
- <https://www.instagram.com/mnlgroup/>

![Capa de mucus en piel de salmón del Atlántico, fuente de péptidos antimicrobianos — Salmon Immunology Series Capítulo 8](https://www.mnl-group.com/hubfs/AI-Generated%20Media/Images/Atlantic%20Salmon%20Skin%20Macro%20with%20Mucus%20Texture%20and%20Water%20Droplets-1.png)

Salmon Immunology Series ·  may 12, 2026

# Capítulo 8: Péptidos antimicrobianos (PAMs) y su rol en la defensa inmune de los peces

[Aqua Health by MNL Group](https://www.mnl-group.com/es/blog/author/aqua-health-by-mnl-group)

Los péptidos antimicrobianos (PAMs) son uno de los componentes humorales más versátiles del sistema inmune innato. Presentes en múltiples tejidos y fluidos corporales, actúan como una defensa química de amplio espectro frente a bacterias, virus y hongos. Este octavo capítulo de la **Salmon Immunology Series** detalla su estructura, clasificación y mecanismos de acción en peces teleósteos.

## ¿Qué son los PAMs?

Los PAMs son oligopéptidos de carga generalmente positiva, con un número variable de aminoácidos. Su mecanismos de acción incluyen la disrupción directa de membranas bacterianas y la formación de poros que comprometen la integridad del patógeno. Adicionalmente, ejercen efectos tanto proinflamatorios como antiinflamatorios, contribuyendo a modular la respuesta inmune innata según el contexto de la infección.

## Diversidad y clasificación

Hasta la fecha se han identificado más de 90 tipos de PAMs en peces. Entre los más estudiados se encuentran:

- **Beta-defensinas**
- **Catelicidinas**
- **Epsdinas**
- **Péptidos derivados de histonas**
- **Pisdinas**

Cada uno exhibe un perfil propio de actividades antivirales y antibacterianas. La diversidad de PAMs en teleósteos refleja una convergencia evolutiva con los sistemas de defensa de otros vertebrados.

## Relevancia para la salmonicultura

Un ejemplo de aplicación directa es la **catelicidina**, que ha demostrado actividad antimicrobiana efectiva contra *Piscirickettsia salmonis* en trucha arcoíris y salmón del Atlántico — uno de los patógenos de mayor impacto económico en la industria salmonícola chilena. Comprender el rol de los PAMs abre líneas de investigación orientadas al fortalecimiento de estas defensas naturales mediante estrategias nutricionales e inmunomodulación preventiva.

*Salmon Immunology Series es una iniciativa educativa de **Aqua Health by MNL Group** en asociación con **Pathovet Labs**, orientada a profesionales de la industria acuícola.*

##### Spread the word

- [Share this blog post on Twitter](https://twitter.com/intent/tweet?text=I+found+this+interesting+blog+post&url=https://www.mnl-group.com/es/blog/salmon-immunology-series-capitulo-8-peptidos-antimicrobianos-pams-peces)
- [Share this blog post on Facebook](http://www.facebook.com/share.php?u=https://www.mnl-group.com/es/blog/salmon-immunology-series-capitulo-8-peptidos-antimicrobianos-pams-peces)
- [Share this blog post on LinkedIn](http://www.linkedin.com/shareArticle?mini=true&url=https://www.mnl-group.com/es/blog/salmon-immunology-series-capitulo-8-peptidos-antimicrobianos-pams-peces)

##### [Aqua Health by MNL Group](https://www.mnl-group.com/es/blog/author/aqua-health-by-mnl-group)

##### Leave a comment

[![Logo MNL Group](https://www.mnl-group.com/hubfs/Logo_MNLGROUP-3.svg "Logo MNL Group")](https://mnl-group.com/?hsLang=es)

Follow us and get in touch to stay up to date with our latest news.

<https://www.instagram.com/mnlgroup/> <https://www.linkedin.com/company/mnl-group-cl> [mailto:info@mnl-group.com](mailto:info@mnl-group.com)

 

[+56 222 479 647](tel:+56222479647)

Av. del Valle 576, of 504, Huechuraba, Santiago, Chile

MNL GROUP Copyright 2026   |   All rights reserved 

 [Terms of Services](https://www.mnl-group.com/terms-of-service?hsLang=es)   |    [Privacy Policy](https://www.mnl-group.com/privacy-policy?hsLang=es)  
<https://50538125.hs-sites.com/en/home-1?hsLang=es>

- Maqui Berry 
    - [The Maqui](https://www.mnl-group.com/en/maqui)
    - [What is Maqui Berry](https://www.mnl-group.com/en/what-is-maqui)
    - [Science Behind Maqui](https://www.mnl-group.com/en/science-behind-maqui)
- Products 
    - [Delphinol®](https://www.mnl-group.com/en/delphinol)
    - [MaquiBright®](https://www.mnl-group.com/en/maquibright)
    - [Maqui XT®](https://www.mnl-group.com/en/maqui-xt)
    - [Freeze-Dried Maqui Berry Powder](https://www.mnl-group.com/en/freeze-dried-maqui-berry-powder)
    - [Futerpenol®](https://www.mnl-group.com/en/futerpenol)
- Company 
    - [About MNL Group](https://www.mnl-group.com/en/company)
    - [Global Partners & Clients](https://www.mnl-group.com/en/global-partners-clients)
    - [Sustainability & Sourcing](https://www.mnl-group.com/en/sustainability-sourcing)
    - [Our Process](https://www.mnl-group.com/en/process)

 

[These statements have not been evaluated by the Food and Drug Administration. These products are not intended to diagnose, treat, cure, or prevent any disease.](tel:+56222479647)

![](https://www.facebook.com/tr?id=1255961423375294&ev=PageView&noscript=1)

```json
{
      "@context": "https://schema.org",
      "@type": "BlogPosting",
      "headline": "Capítulo 8: Péptidos antimicrobianos (PAMs) y su rol en la defensa inmune de los peces",
      
        "image": [
          "https://50538125.fs1.hubspotusercontent-na1.net/hubfs/50538125/AI-Generated%20Media/Images/Atlantic%20Salmon%20Skin%20Macro%20with%20Mucus%20Texture%20and%20Water%20Droplets-1.png"
        ],
      
      
        "description": "<p>Los péptidos antimicrobianos (PAMs) son uno de los componentes humorales más versátiles del sistema inmune innato. Presentes en múltiples tejidos y fluidos corporales, actúan como una defensa química de amplio espectro frente a bacterias, virus y hongos. Este octavo capítulo de la <strong>Salmon Immunology Series</strong> detalla su estructura, clasificación y mecanismos de acción en peces teleósteos.<br><br></p>
",
      
      "datePublished": "2026-05-12T15:19:42",
      "dateModified": "2026-05-12T15:20:53",
      "author": [{
          "@type": "Person",
          "name": "Aqua Health by MNL Group",
          "url": "https://www.mnl-group.com/es/blog/author/aqua-health-by-mnl-group"
        }]
    }
```

```json
{
  "@context" : "https://schema.org",
  "@type" : "BlogPosting",
  "author" : {
    "@type" : "Person",
    "name" : "Aqua Health by MNL Group",
    "url" : "https://www.mnl-group.com/es/blog/author/aqua-health-by-mnl-group"
  },
  "dateModified" : "2026-05-12T15:20:53.450Z",
  "datePublished" : "2026-05-12T15:19:42.000Z",
  "headline" : "Capítulo 8: Péptidos antimicrobianos (PAMs) y su rol en la defensa inmune de los peces",
  "image" : [ "https://www.mnl-group.com/hubfs/AI-Generated%20Media/Images/Atlantic%20Salmon%20Skin%20Macro%20with%20Mucus%20Texture%20and%20Water%20Droplets-1.png" ],
  "mainEntityOfPage" : {
    "@id" : "https://www.mnl-group.com/es/blog/salmon-immunology-series-capitulo-8-peptidos-antimicrobianos-pams-peces",
    "@type" : "WebPage"
  },
  "publisher" : {
    "@type" : "Organization",
    "logo" : {
      "@type" : "ImageObject",
      "url" : "https://www.mnl-group.com/hubfs/Logo_MNLGROUP-3.svg"
    },
    "name" : "MNL GROUP"
  }
}
```

```json
{
  "@context" : "https://schema.org",
  "@id" : "https://www.mnl-group.com/en/blog#blog",
  "@type" : "Blog",
  "about" : {
    "@id" : "https://www.mnl-group.com/en/what-is-maqui#taxon"
  },
  "author" : {
    "@id" : "https://www.mnl-group.com/#organization"
  },
  "description" : "News, research, and milestones from MNL Group's work in Maqui Berry innovation, partnerships, and global development. Covering nutraceutical science, antioxidant research, metabolic health, skin vitality, eye health, and sustainable sourcing from Patagonia.",
  "inLanguage" : "en",
  "name" : "MNL Group Blog — Insights & Updates",
  "publisher" : {
    "@id" : "https://www.mnl-group.com/#organization"
  },
  "url" : "https://www.mnl-group.com/en/blog"
}
```

```json
{
  "@context" : "https://schema.org",
  "@id" : "https://www.mnl-group.com/en/blog#webpage",
  "@type" : "WebPage",
  "about" : {
    "@id" : "https://www.mnl-group.com/en/blog#blog"
  },
  "breadcrumb" : {
    "@type" : "BreadcrumbList",
    "itemListElement" : [ {
      "@type" : "ListItem",
      "item" : "https://www.mnl-group.com/en/",
      "name" : "Home",
      "position" : 1
    }, {
      "@type" : "ListItem",
      "item" : "https://www.mnl-group.com/en/blog",
      "name" : "News & Articles",
      "position" : 2
    } ]
  },
  "description" : "Explore MNL Group's blog: science-backed articles on Maqui Berry benefits, clinical research, nutraceutical innovation, skin health, metabolic wellness, eye health, and sustainable sourcing from Patagonia.",
  "inLanguage" : "en",
  "isPartOf" : {
    "@id" : "https://www.mnl-group.com/#website"
  },
  "name" : "News & Articles — Maqui Berry Science, Innovation & Updates | MNL Group Blog",
  "url" : "https://www.mnl-group.com/en/blog"
}
```