Penilaian microsatellite instability melalui ekspresi PMS2 dan MSH6 serta tumor infiltrating-lymphocytes pada kanker kolorektal kiri dan kanan = Assessment of microsatellite instability trough PMS2 and MSH6 expression and tumor infiltrating-lymphocytes in left and right sided colorectal cancer
Chandra Dewi Kartika Setyaningsih;
Ening Krisnuhoni, supervisor; Kusmardi, supervisor; Diah Rini Handjari, supervisor
(Fakultas Kedokteran Universitas Indonesia, 2015)
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ABSTRAK Latar Belakang :Karsinoma kolorektal (KKR) merupakan penyebab kematian kedua di dunia dari seluruh jeniskanker. KKR dapat disebabkan oleh defek dari MMR DNA. Microsatellite instability (MSI)adalah penanda defek MMR DNA. KKR MSI-H memiliki gambaran karakteristik tertentu.Tumor-infiltrating-lymphocyte (TIL) merupakan faktor prognosis. Hilangnya ekspresi PMS2 danMSH6 dapat sebagai penanda MSI. Penelitian ini bertujuan untuk menilai terjadinya MSI padaKKR di sisi kiri dan sisi kanan kolon melalui Hilangnya ekspresi PMS2 dan MSH6, sertamengetahui hubungan antara TIL dengan MSI-H.Bahan dan Metode :Dilakukan pulasan IHK PMS2 dan MSH6, serta penghitungan TIL. Penilaian dilakukan denganmenghitung hilangnya ekspresi PMS2 dan MSH6 pada inti sel dan dikelompokkan ke dalamkelompok mutasi dan tidak mutasi .Penghitungan TIL juga dikelompokkan ke dalam TIL tinggidan rendah, berdasarkan nilai titik potong Hasil : Didapatkan 27,8% kasus menunjukkan hilangnya ekspresi PMS2 dan MSH6 dengan 14,4%kasus di distal kolon. TIL terbanyak di distal kolon 30% kasus. Tidak terdapat perbedaanbermakna antara mutasi PMS2 dan MSH6 dengan lokasi (p=0,829) dan TIL (p=0,187). Terdapatperbedaan bermakna antara usia dan lokasi (p=0,020) serta peningkatan ekspresi PMS2 denganMSH6 (p=0,06).Kesimpulan :MSI-H ditemukan pada 27,8% kasus. Penggunaan PMS2 dan MSH6 pada penelitian ini belumdapat menggantikan 4 panel IHK. Terdapat kecenderungan dimana adenokarsinoma NOSmemiliki frekuensi mutasi lebih tinggi dari adenokarsinoma musinosum.ABSTRACT Background : Colorectal carcinoma (CRC) is the world second leading cause of death from all types of cancer.CRC can be caused by a defect of MMR DNA. Microsatellite instability (MSI) is a marker ofDNA MMR defect. CRC MSI-H has a certain characteristic figures. Tumor-infiltratinglymphocytes (TIL) isone of prognostic factor. Loss expression of the PMS2 and MSH6 can beuse as a marker of MSI. This study aims to assess the occurrence of MSI in CRC on the left sideand the right side of the colon through the loss of expression of PMS2 and MSH6, anddetermine the relationship between TIL with MSI-H. Materials and Methods :Immunohistochemical staining using two marker, there is PMS2 and MSH6. We also countingthe number of TIL. Assessment by calculating the loss expression of PMS2 and MSH6 in the cellnuclei and divided into two groups, the mutations and non mutations . TIL result also groupedinto high and low, based on the cutoff point. Result :There are 27.8% of cases showed loss of expression of PMS 2 and MSH6 with 14.4% of cases inthe distal colon. About 30% TIL cases located in distal colon. There were no significantdifferences between PMS2 and MSH6 mutation with the location (p = 0.829) and TIL (p =0.187). There are significant differences between age and location (p = 0.020) and increasedexpression of PMS2 with MSH6 (p = 0.06). \ Conclusion :MSI-H was found in 27.8% of cases. The use of PMS2 and MSH6 in this study have not beenable to replace 4 panels of IHC. There is a tendency where the adenocarcinoma NOS have ahigher mutation frequency than mucinous adenocarcinoma. ;Background :Colorectal carcinoma (CRC) is the world second leading cause of death from all types of cancer.CRC can be caused by a defect of MMR DNA. Microsatellite instability (MSI) is a marker ofDNA MMR defect. CRC MSI-H has a certain characteristic figures. Tumor-infiltratinglymphocytes (TIL) isone of prognostic factor. Loss expression of the PMS2 and MSH6 can beuse as a marker of MSI. This study aims to assess the occurrence of MSI in CRC on the left sideand the right side of the colon through the loss of expression of PMS2 and MSH6, anddetermine the relationship between TIL with MSI-H. Materials and Methods :Immunohistochemical staining using two marker, there is PMS2 and MSH6. We also countingthe number of TIL. Assessment by calculating the loss expression of PMS2 and MSH6 in the cellnuclei and divided into two groups, the mutations and non mutations . TIL result also groupedinto high and low, based on the cutoff point. Result :There are 27.8% of cases showed loss of expression of PMS 2 and MSH6 with 14.4% of cases inthe distal colon. About 30% TIL cases located in distal colon. There were no significantdifferences between PMS2 and MSH6 mutation with the location (p = 0.829) and TIL (p =0.187). There are significant differences between age and location (p = 0.020) and increasedexpression of PMS2 with MSH6 (p = 0.06). \ Conclusion :MSI-H was found in 27.8% of cases. The use of PMS2 and MSH6 in this study have not beenable to replace 4 panels of IHC. There is a tendency where the adenocarcinoma NOS have ahigher mutation frequency than mucinous adenocarcinoma. ;Background :Colorectal carcinoma (CRC) is the world second leading cause of death from all types of cancer.CRC can be caused by a defect of MMR DNA. Microsatellite instability (MSI) is a marker ofDNA MMR defect. CRC MSI-H has a certain characteristic figures. Tumor-infiltratinglymphocytes (TIL) isone of prognostic factor. Loss expression of the PMS2 and MSH6 can beuse as a marker of MSI. This study aims to assess the occurrence of MSI in CRC on the left sideand the right side of the colon through the loss of expression of PMS2 and MSH6, anddetermine the relationship between TIL with MSI-H. Materials and Methods :Immunohistochemical staining using two marker, there is PMS2 and MSH6. We also countingthe number of TIL. Assessment by calculating the loss expression of PMS2 and MSH6 in the cellnuclei and divided into two groups, the mutations and non mutations . TIL result also groupedinto high and low, based on the cutoff point. Result :There are 27.8% of cases showed loss of expression of PMS 2 and MSH6 with 14.4% of cases inthe distal colon. About 30% TIL cases located in distal colon. There were no significantdifferences between PMS2 and MSH6 mutation with the location (p = 0.829) and TIL (p =0.187). There are significant differences between age and location (p = 0.020) and increasedexpression of PMS2 with MSH6 (p = 0.06). \ Conclusion :MSI-H was found in 27.8% of cases. The use of PMS2 and MSH6 in this study have not beenable to replace 4 panels of IHC. There is a tendency where the adenocarcinoma NOS have ahigher mutation frequency than mucinous adenocarcinoma. |
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No. Panggil : | SP-PDF |
Entri utama-Nama orang : | |
Entri tambahan-Nama orang : | |
Entri tambahan-Nama badan : | |
Subjek : | |
Penerbitan : | Depok: Fakultas Kedokteran Universitas Indonesia, 2015 |
Program Studi : |
Bahasa : | ind |
Sumber Pengatalogan : | LibUI ind rda |
Tipe Konten : | text |
Tipe Media : | computer |
Tipe Carrier : | online resource |
Deskripsi Fisik : | xv, 69 pages : illustration + appendix |
Naskah Ringkas : | |
Lembaga Pemilik : | Universitas Indonesia |
Lokasi : | Perpustakaan UI, Lantai 3 |
No. Panggil | No. Barkod | Ketersediaan |
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SP-PDF | 16-18-649939628 | TERSEDIA |
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