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"Psoriasis merupakan penyakit autoimun yang disebabkan kelainan genetik dan dipicu faktor lingkungan, penyakit ini menyerang kulit dan sistemik seperti sendi dan kuku. Sel punca mesenkim (SPM) asal tali pusat manusia memiliki kapasitas proliferasi yang tinggi, imunomodulator yang luas dan imunogenitas yang rendah. Penelitian ini menggunakan model tikus psoriasis yang diinduksi dengan krim imiquimod 5% selama 6 hari. Tikus dibagi menjadi kelompok 5 kelompok yang diberi SPM atau Phosphate Nuffer Saline (PBS) secara intradermal atau subkutan serta kontrol normal. Pemberian SPM dan PBS dilakukan sebelum pengolesan krim. Penilaian harian kulit tikus dilakukan dengan skoring modified Psoriasis Area and Severity Index (mPASI). Setelah pembedahan, kulit tikus dianalisa terhadap ekspresi relatif gen Interleukin (IL)-17 dan IL-10. Sebagian kulit difiksasi dengan formalin dan dilakukan pemeriksaan histologi dan imunohistokimia dengan antibodi Anti-CD11b. Analisa statistik memperlihatkan skor mPASI kelompok SPM mengalami penurunan bermakna dibanding kelompok PBS. Ekspresi relatif gen IL-17 menurun dan gen IL-10 meningkat pada kelompok SPM dibandingkan PBS. Pewarnaan Hematoksilin dan Eosin memperlihatkan rerata tebal epidermis dan jumlah kapiler mengalami penurunan pada kelompok SPM dibanding PBS. Rerata jumlah infiltrasi sel CD11b+ kelompok SPM menurun secara bermakna dibandingkan PBS. Penyuntikan SPM terutama intradermal mampu menyebabkan remisi pada lesi lokal kulit psoriasis pada model tikus Wistar.

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Psoriasis is a chronic inflammatory disease affecting mainly the skin and other parts such as nails and joints. Human umbilical cord-derived mesenchymal stem cells (hUC-MSCs) are highly proliferative immunomodulator cells with low immunogenicity. The Psoriasis rat model was induced with 5% imiquimod cream for 6 days. The rats were divided into 5 groups receiving intradermal or subcutaneous injections of hUC-MSCs or Phosphate Buffer Saline (PBS), and a normal control group. MSCs and PBS were administered before cream application. Daily skin assessments were performed using a modified Psoriasis Area and Severity Index (mPASI) scoring system. After harvest, rat skin was analyzed for relative expression of Interleukin (IL)-17 and IL-10 genes. Some skin samples were fixed with formalin for histological examination and immunohistochemistry with Anti-CD11b antibodies. Statistical analysis showed a significant reduction in mPASI scores in the hUC-MSCs group compared to the PBS group. Histology staining revealed a decrease in epidermal thickness and capillary in the hUC-MSCs group. The infiltration of CD11b+ cells significantly decreased in the hUC-MSCs group.  The relative gen expression of IL-17 decreased, while IL-10 gene increased in the hUC-MSCs group. Particularly, intradermal injection of hUC-MSCs induced remission of local psoriasis skin lesions in the rat model."

"Sel Punca Mesenkim (SPM) dianggap sebagai sel yang sangat menjanjikan untuk terapi penyakit berdasar inflamasi karena potensi proliferasi multilineagenya, imunogenisitas rendah, migrasi spesifik ke jaringan yang cedera, dan efek imunomodulator potensialnya. Diperlukan data pendukung mengenai potensi imunomodulasi SPM dalam menghadapi kondisi proinflamasi sebelum digunakan dalam uji klinis. Dilakukan desain penelitian eksperimental in vitro kultur sel untuk menilai potensi imunomodulasi SPM yang berasal dari tali pusat (SPM-TP) dan asal jaringan adiposa (SPM-AD). Untuk menciptakan kondisi inflamasi, menggunakan kultur PBMC yang distimulasi dengan mitogen PHA, diikuti oleh kokultur dengan dua jenis SPM. Pengujian proliferasi dengan Ki67 dilakukan dengan qRT-PCR, pengujian sitokin proinflamasi IFN-γ, IL-1β, dan antiinflamasi IL-10 dilakukan dengan metode Luminex dan pengujian sitokin TGF-β dan IDO dilakukan mnggunakan metode ELISA. Hasil studi menunjukkan adanya perbedaan signifikan antara kelompok dengan perlakuan dan tanpa perlakuan, tetapi tidak terdapat perbedaan signifikan diantara dua kelompok perlakuan (SPM- TP dan SPM-AD). Namun, berdasarkan kemampuan untuk menekan proliferasi PBMC terlihat bahwa SPM-TP menunjukkan kemampuan yang lebih baik dibandingkan SPM-AD.

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The Mesenchymal Stem Cells (MSCs) are considered highly promising for inflammatory disease therapy due to their multilineage proliferation potential, low immunogenicity, specific migration to injured tissues, and potential immunomodulatory effects. Supporting data on the immunomodulatory potential of MSCs in facing proinflammatory conditions are required before their use in clinical trials. An experimental in vitro cell culture research design was conducted to assess the immunomodulatory potential of MSCs derived from umbilical cord (UC-MSCs) and adipose tissue (AD-MSCs). To induce inflammatory conditions, peripheral blood mononuclear cells (PBMCs) were stimulated with PHA mitogen, followed by co-culture with the two types of MSCs. Proliferation testing using Ki67 was performed with qRT-PCR, proinflammatory cytokine testing (IFN-γ, IL-1β) and anti-inflammatory cytokine (IL-10) were conducted using the Luminex method, and TGF-β and IDO cytokine testing were performed using the ELISA method. The study results indicated significant differences between the treated and untreated groups, although no significant differences were observed between the two treatment groups (UC-MSCs and AD-MSCs). However, based on the ability to suppress PBMC proliferation, it was evident that UC-MSCs exhibited superior capabilities compared to AD-MSCs."