{"id":3582,"date":"2024-03-06T06:23:08","date_gmt":"2024-03-06T06:23:08","guid":{"rendered":"https:\/\/www.tcm-vet.com\/?p=3582"},"modified":"2024-03-06T06:23:16","modified_gmt":"2024-03-06T06:23:16","slug":"understanding-melanoma-in-dogs-and-cats-insights-and-treatment","status":"publish","type":"post","link":"https:\/\/www.tcm-vet.com\/sv\/understanding-melanoma-in-dogs-and-cats-insights-and-treatment\/","title":{"rendered":"F\u00f6rst\u00e5 melanom hos hundar och katter: Insikter och behandling"},"content":{"rendered":"

Melanom, en form av cancer som h\u00e4rr\u00f6r fr\u00e5n pigmentproducerande melanocyter, \u00e4r ett betydande h\u00e4lsoproblem hos hundar och, i mindre utstr\u00e4ckning, hos katter. Den h\u00e4r omfattande guiden syftar till att belysa egenskaperna, diagnosen och potentiella behandlingsalternativ f\u00f6r melanom hos dessa djur, vilket ger v\u00e4rdefull information f\u00f6r b\u00e5de djur\u00e4gare och veterin\u00e4rer.<\/p>\n\n\n\n

Vad \u00e4r melanom?<\/h2>\n\n\n\n

Melanom \u00e4r en cancer som har sitt ursprung i melanocyter, de celler som ansvarar f\u00f6r pigmentproduktionen i huden och andra delar av kroppen. Hos hundar \u00e4r det en relativt vanlig cancer, s\u00e4rskilt hos raser med betydande hudpigmentering. Till skillnad fr\u00e5n hundar \u00e4r melanom s\u00e4llsyntare hos katter men tenderar att vara mer maligna n\u00e4r det uppst\u00e5r.<\/p>\n\n\n\n

Vanliga webbplatser och utseenden<\/h3>\n\n\n\n

Hos hundar finns melanom oftast p\u00e5 den h\u00e5rh\u00e5riga huden, som upptr\u00e4der som sm\u00e5, bruna till svarta massor. De kan ocks\u00e5 visas som st\u00f6rre, platta och skrynkliga massor. Prim\u00e4ra melanom hos hundar kan ocks\u00e5 utvecklas i munh\u00e5lan, nagelb\u00e4dden, trampdynan, \u00f6gat, mag-tarmkanalen, n\u00e4sh\u00e5lan, anals\u00e4cken eller mukokutana f\u00f6rbindelser. Den vanligaste platsen f\u00f6r oralt melanom hos hundar inkluderar tandk\u00f6ttet, l\u00e4pparna, tungan och h\u00e5rda gommen.<\/p>\n\n\n\n

Riskfaktorer och orsaker<\/h3>\n\n\n\n

Till skillnad fr\u00e5n m\u00e4nskliga melanom, som ofta \u00e4r kopplade till exponering f\u00f6r UV-ljus, \u00e4r hundmelanom mindre troligt att tillskrivas solljus p\u00e5 grund av den skyddande h\u00e5rp\u00e4lsen hos de flesta raser. De exakta riskfaktorerna f\u00f6r melanom hos hund \u00e4r dock inte v\u00e4l etablerade. Hos katter \u00e4r melanom mindre vanligt och dess orsaker \u00e4r lika komplexa och inte helt klarlagda.<\/p>\n\n\n\n

Diagnos och patologi<\/h2>\n\n\n\n

Att diagnostisera melanom kan vara utmanande, s\u00e4rskilt anaplastiska amelanotiska melanom som liknar mjukdelssarkom. Immunhistokemiska metoder anv\u00e4nds ofta f\u00f6r att \u00f6ka diagnostisk precision, med antikroppar som PNL2 och tyrosinas, f\u00f6rutom Melan A och S-100.<\/p>\n\n\n\n

Molekyl\u00e4rbiologiska insikter<\/h3>\n\n\n\n

Hund- och kattmelanom har en begr\u00e4nsad molekyl\u00e4r karakt\u00e4risering j\u00e4mf\u00f6rt med m\u00e4nskliga melanom. Vid orala maligna melanom hos hundar \u00e4r BRAF-mutationer vanliga i humant hudmelanom ovanliga. ERK-aktiveringslikheter i m\u00e4nskliga och hundar MMs tyder dock p\u00e5 potentiella paralleller i molekyl\u00e4ra v\u00e4gar. Forskare har ocks\u00e5 identifierat andra molekyl\u00e4ra abnormiteter i hund- och kattmelanom, vilket ger nya v\u00e4gar f\u00f6r behandlingsforskning.<\/p>\n\n\n\n

Behandlingsalternativ och forskning<\/h2>\n\n\n\n

Behandlingen av melanom hos hundar och katter beror p\u00e5 olika faktorer, inklusive tum\u00f6rens plats, storlek, stadium och histologiska egenskaper. N\u00e5gra av behandlingsalternativen inkluderar:<\/p>\n\n\n\n

    \n
  1. Kirurgi:<\/strong> Den prim\u00e4ra behandlingen f\u00f6r lokaliserat melanom, som syftar till att ta bort hela tum\u00f6ren.<\/li>\n\n\n\n
  2. Str\u00e5lbehandling:<\/strong> Anv\u00e4nds ofta f\u00f6r tum\u00f6rer som inte kan avl\u00e4gsnas helt kirurgiskt.<\/li>\n\n\n\n
  3. Kemoterapi:<\/strong> Anv\u00e4nds i fall d\u00e4r melanomet har spridit sig, \u00e4ven om dess effektivitet kan variera.<\/li>\n\n\n\n
  4. Immunterapi:<\/strong> Ett nyare tillv\u00e4gag\u00e5ngss\u00e4tt, s\u00e5som anv\u00e4ndningen av Oncept-vaccin hos hundar, speciellt utformad f\u00f6r hundmelanom.<\/li>\n<\/ol>\n\n\n\n

    Framtida terapeutiska m\u00e5l<\/h3>\n\n\n\n

    Ny transkriptomanalys i hundmelanom har avsl\u00f6jat nya terapeutiska m\u00e5l i fokal adhesion och PI3K-Akt signalv\u00e4gar. Dessutom \u00f6ppnar n\u00e4rvaron av exon 11 c-kit-genmutationer hos vissa hundar med malignt melanom m\u00f6jligheten f\u00f6r riktad terapi med hj\u00e4lp av KIT-h\u00e4mmare av sm\u00e5 molekyler.<\/p>\n\n\n\n

    V\u00e4gen framf\u00f6r<\/h3>\n\n\n\n

    Fortsatt forskning om molekyl\u00e4rbiologin hos hund- och kattmelanom lovar utvecklingen av mer effektiva behandlingar. Att f\u00f6rst\u00e5 somatiska mutationer i gener som NRAS och PTEN, som liknar humana melanom hotspots, kan erbjuda nya terapeutiska v\u00e4gar.<\/p>\n\n\n\n

    Melanom hos hundar och katter utg\u00f6r en unik upps\u00e4ttning utmaningar inom veterin\u00e4rmedicin. P\u00e5g\u00e5ende forskning och framsteg inom molekyl\u00e4rbiologi \u00e4r nyckeln till att f\u00f6rb\u00e4ttra diagnostik och behandling. Djur\u00e4gare b\u00f6r vara medvetna om tecknen och r\u00e5dfr\u00e5ga en veterin\u00e4r f\u00f6r tidig uppt\u00e4ckt och optimal v\u00e5rd.<\/p>","protected":false},"excerpt":{"rendered":"

    Melanoma, a form of cancer arising from pigment-producing melanocytes, is a significant health concern in dogs and, to a lesser extent, in cats. This comprehensive guide aims to shed light on the characteristics, diagnosis, and potential treatment options for melanoma in these animals, providing valuable information for pet owners and veterinary professionals alike. What is […]<\/p>\n","protected":false},"author":1,"featured_media":3583,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_et_pb_use_builder":"off","_et_pb_old_content":"","_et_gb_content_width":"1080","_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[4],"tags":[1555,1557,1559,786,601,1558,1556,1554,632,1553,717,752,852],"class_list":["post-3582","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-dog-cancer-and-tumor","tag-braf-mutations","tag-cancer","tag-cats","tag-chemotherapy","tag-dogs","tag-erk-activation","tag-immunohistochemistry","tag-melanocytes","tag-melanoma","tag-molecular-biology","tag-pet-health","tag-radiation-therapy","tag-veterinary-medicine"],"jetpack_featured_media_url":"https:\/\/www.tcm-vet.com\/wp-content\/uploads\/2024\/03\/\u5fae\u4fe1\u56fe\u7247_20240306142146.jpg","jetpack-related-posts":[{"id":18534,"url":"https:\/\/www.tcm-vet.com\/sv\/canine-melanoma-which-breeds-are-more-prone-to-this-aggressive-cancer\/","url_meta":{"origin":3582,"position":0},"title":"Canine Melanom: Vilka raser \u00e4r mer ben\u00e4gna att drabbas av denna aggressiva cancer?","author":"TCMVET","date":"januari 26, 2025","format":false,"excerpt":"Melanom \u00e4r en av de mest oroande cancerformerna hos hundar, som ofta f\u00f6rekommer i munnen, p\u00e5 huden, i klob\u00e4ddarna och till och med i \u00f6gonen.","rel":"","context":"I \u201dDog Cancer & Tumors\u201d","block_context":{"text":"Dog Cancer & Tumors","link":"https:\/\/www.tcm-vet.com\/sv\/category\/dog-cancer-and-tumor\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/www.tcm-vet.com\/wp-content\/uploads\/2025\/01\/DALL%C2%B7E-2025-01-26-19.09.16-A-detailed-digital-illustration-of-various-dog-breeds-prone-to-melanoma-including-Scottish-Terrier-Golden-Retriever-Labrador-Retriever-Cocker-Span.webp?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.tcm-vet.com\/wp-content\/uploads\/2025\/01\/DALL%C2%B7E-2025-01-26-19.09.16-A-detailed-digital-illustration-of-various-dog-breeds-prone-to-melanoma-including-Scottish-Terrier-Golden-Retriever-Labrador-Retriever-Cocker-Span.webp?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/www.tcm-vet.com\/wp-content\/uploads\/2025\/01\/DALL%C2%B7E-2025-01-26-19.09.16-A-detailed-digital-illustration-of-various-dog-breeds-prone-to-melanoma-including-Scottish-Terrier-Golden-Retriever-Labrador-Retriever-Cocker-Span.webp?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/www.tcm-vet.com\/wp-content\/uploads\/2025\/01\/DALL%C2%B7E-2025-01-26-19.09.16-A-detailed-digital-illustration-of-various-dog-breeds-prone-to-melanoma-including-Scottish-Terrier-Golden-Retriever-Labrador-Retriever-Cocker-Span.webp?resize=700%2C400&ssl=1 2x"},"classes":[]},{"id":4423,"url":"https:\/\/www.tcm-vet.com\/sv\/metastatic-melanoma-in-dogs-an-in-depth-scientific-guide\/","url_meta":{"origin":3582,"position":1},"title":"Metastatic Melanoma in Dogs: An In-Depth Scientific Guide","author":"TCMVET","date":"maj 30, 2024","format":false,"excerpt":"Metastatisk melanom hos hundar \u00e4r en mycket aggressiv form av cancer som har sitt ursprung i pigmentproducerande celler (melanocyter) och sprider sig till andra delar av kroppen. 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Medan melanom kan utvecklas hos vilken hund som helst, \u00e4r vissa raser mer ben\u00e4gna att drabbas av denna sjukdom p\u00e5 grund av deras genetiska sammans\u00e4ttning. 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