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"ABSTRACTStage I non-small cell lung cancer (NSCLC) is a localized disease without metastasis; therefore, it can be treated effectively with local therapies. Pulmonary resection is the most frequent treatment, performed as pulmonary wedge resection, segmentectomy, lobectomy, or pneumonectomy. Some retrospective clinical studies of pulmonary wedge resection suggest that its outcome may be inferior to that of anatomical pulmonary resection, whereas other recent studies, which assess surgical margin status, leveled acceptable outcomes. Since the outcome of pulmonary wedge resection for lung cancer may depend on tumor size, distance from the surgical margin to the tumor, tumor size/margin distance ratio, and margin cytology results, a prospective study assessing these parameters is ongoing. This will allow us to identify the clinical implications of these factors and predict which patients are likely to have a good outcome."

"Latar Belakang : Pasien kanker paru sering mengalami pneumonia, hal ini terjadikarena penurunan daya tahan tubuh. Pneumonia menyulitkan penanganan,memperburuk kualitas hidup, mengurangi survival dan seringkali merupakanpenyebab langsung kematian pasien kanker paru. Penangananan pneumonia padapasien NSCLC(non small cell lung cancer) dengan antimikroba yang terus menerustanpa memperhatikan kultur sensisitivitas akan menyebabkan resistensi dari kumanpenyebab pneumonia tersebut.Tujuan : Penelitian ini bertujuan untuk mengetahui, pola kuman penyebabpneumonia pada pasien NSCLC, dan membandingkan kesintasan pasien NSCLCyang menderita pneumonia yang disebabkan oleh bakteri MDR (multidrugresistance) dengan yang disebabkan oleh bakteri non-MDR.Metode : Penelitian ini merupakan kohort retrospektif dengan subjek penelitianadalah pasien NSCLC dengan pneumonia yang disebabkan oleh bakteri MDR dannon-MDR yang dirawat di Rumah Sakit Dr Cipto Mangunkusumo bulan Januari2013-Desember 2017. Analisis dilakukan dengan analisis multivariat regressi cox.Hasil: Setelah dilakukan pemeriksaan kultur BAL(Bronchoalveolar lavage), cairanpleura dan sputum, diperoleh 32 subjek hasil kulturnya hanya bakteri MDR, 14subjek tumbuh bakteri MDR dan non-MDR, dan 23 subjek hanya tumbuh bakterinon-MDR. Bakteri non-MDR terbanyak penyebab pneumonia pada pasienNSCLC adalah Klebsiella pneumoniae sebanyak 37,3%, sedangkan bakteri MDRyang terbanyak menyebabkan pneumonia pada pasien NSCLC adalahAcinetobacter baumannii sebanyak 23,2%. Median survival Pasien NSCLCdengan pneumonia yang disebabkan oleh bakteri MDR adalah 57 hari(43,707-70,293) sedangkan yang oleh bakteri non-MDR 92 hari(58,772-125,228).Simpulan : kesintasan pasien NSCLC dengan pneumonia yang disebabkan olehbakteri MDR lebih singkat daripada yang disebabkan oleh bakteri non-MDR.

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Back Ground: Lung cancer patients often experience pneumonia. This is due tothe decrease in body endurance of the patients. Pneumonia complicatestreatment, worsens the quality of life, reduces survival and is often a direct causeof death for lung cancer patients. Dealing with pneumonia in non-small cell lungcancer (NSCLC) patients with continuous antimicrobials treatment withoutregard to culture sensitivity will cause resistance of germs that cause pneumonia.Objectives: This study aims to study the pattern of germs that cause pneumoniain NSCLC patients, and to compare the survival of NSCLC patients sufferingfrom pneumonia caused by MDR (multidrug resistance) bacteria with thosecaused by non-MDR bacteria.Methods: This study was a retrospective cohort with research subjects wasNSCLC patients with pneumonia caused by MDR and non-MDR bacteria whowere treated at Dr. Cipto Mangunkusumo Hospital from January 2013 toDecember 2017. Analysis was performed with multivariate cox regressionanalysis.Results: The results of the culture examination of BAL(Bronchoalveolar lavage),pleural fluid and sputum showed that 32 subjects were infected only from MDRbacteria, 14 subjects infected by both MDR and non MDR bacteria, and 23subjects were infected by only non MDR bacteria. The most non-MDR bacteriathat cause pneumonia in NSCLC patients was Klebsiella pneumoniae as much as37,3%, while the most MDR bacteria that cause pneumonia in NSCLC patientswas Acinetobacter baumannii as much as 23,2%. Median survival of NSCLCpatients with pneumonia caused by MDR bacteria was 57 days(43,707-70,293)while those by non-MDR bacteria was 92 days (58,772-125,228).Conclusions: The survival of NSCLC patients with pneumonia caused by MDRbacteria is shorter than that caused by non-MDR bacteria."

"Latar Belakang : Kanker paru karsinoma bukan sel kecil (KPKBSK) merupakan jenis kanker paru yang terbanyak. Kesintasan kanker paru terutama ditentukan oleh jenis dan stage kanker. Pada jenis dan stage yang sama masih terdapat perbedaan kesintasan. Inflamasi telah lama diketahui sebagai faktor yang memengaruhi kesintasan pada pasien KPKBSK. Pemeriksaan profil leukosit merupakan pemeriksaan yang murah, cepat dan rutin dikerjakan. Terdapat beberapa penelitian di luar negeri yang meneliti hubungan rasio neutrofil limfosit, rasio trombosit limfosit dan rasio limfosit monosit namun dengan hasil dan titik potong yang beragam. Metode : Penelitian ini menggunakan metode kohort retrospektif pada 148 pasien KPKBSK stage lanjut dengan mutasi epidermal growth factor receptor (EGFR) wild type atau tidak diketahui yang berobat ke RSRRN Persahabatan antara tahun 2018-2019, yang mendapatkan kemoterapi minimal 2 siklus. Dilakukan pencatatan data profil leukosit berupa RNL, RTL dan RLM sebelum menjalani kemoterapi pertama, kemudian diikuti respons klinis berupa kesintasan PFS dan OS. Analisis hubungan antar variabel menggunakan uji korelasi Spearman dan analisis kesintasan menggunakan kurva Kaplan Meier. Hasil : Sampel penelitian 148 pasien KPKBSK stage IIIB-IV dengan proporsi laki-laki 107 orang (72,3%) dan perempuan 41 orang (27,7%). Median usia 57 tahun (16-77 tahun). Didapatkan kanker paru jenis karsinoma sel skuamosa (KSS) sebanyak 83 (56,1%), adenokarsinoma 62 (41,9%) dan adenoskuamosa 3 (2%) dengan performance status (PS) 0-2. Terdapat hubungan yang bermakna antara RNL, RTL dan RLM dengan PFS dan OS. Pasien dengan RNL≥4 memiliki PFS yang lebih rendah (HR=1,689, IK95%:1,189-2,399, p=0,003) dan OS lebih rendah (HR=2,028, IK95%:1,423-2,891, p<0,001). Pasien dengan RTL≥125 memiliki PFS yang lebih rendah (HR=2,229, IK95%:1,226-4,053, p=0,009) dan OS lebih rendah (HR=2,286, IK95%:1,259-4,148, p=0,007). Pasien dengan RLM≥2,5 memiliki PFS yang lebih tinggi (HR=0,464, IK95%:0,316 - 0,682, p<0,001) dan OS lebih tinggi (HR=0,383, IK95%:0,259 - 0,565, p<0,001) Kesimpulan : Nilai RNL, RTL dan RLM memiliki hubungan dengan PFS dan OS pada pasien KPKBSK stage lanjut yang mendapatkan kemoterapi. Baik RNL, RTL maupun RLM dapat digunakan sebagai faktor prognostik pada pasienKPKBSK stage lanjut yang mendapatkan kemoterapi Kata kunci Kemoterapi, KPKBSK, prognosis, rasio neutrofil limfosit (RNL), rasio trombosit limfosit (RTL), rasio limfosit monosit (RLM)

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Background : Non small cell lung cancer (NSCLC) is the most common type of lung cancer. Lung cancer survival is mainly determined by the type and stage of cancer. At the same type and stage, there are still differences in survival. Inflammation has long been recognized as a factor that affects survival in patients with NSCLC. Examination of the leucocyte profile is an inexpensive, fast and routine examination. There are several studies that examine the relationship between the ratio of neutrophil to lymphocytes (NLR), the ratio of platelets to lymphocytes (PLR) and the ratio lymphocytes to monocyte (LMR) but with varying results and cut points. Methods : This study used a retrospective cohort method on 148 advanced stage NSCLC patients with wild type or unknown mutations of epidermal growth factor receptor (EGFR) who were treated at RSRRN Persahabatan between 2018-2019, who received at least 2 cycles of chemotherapy. Leukocyte profile data were recorded in the form of NRL, PLR and LMR before undergoing the first chemotherapy, followed by clinical responses in the form of PFS and OS survival. Analysis of the relationship between variables using the Spearman correlation test and survival analysis using the Kaplan Meier curve. Results : Total sample was 148 NSCLC patients IIIB-IV with the proportion of 107 men (72,3%) and 41 women (27,7%). The median age was 57 years (16-77 years). There were 83 (56,1%) squamous cell carcinoma (SCC) cases, 62 (41,9%) adenocarcinoma cases and 3 (2%) adenosquamous cases with performance status (PS) of 0-2. There is a significant relationship between NLR, PLR and LMR with PFS and OS. Patients with NLR≥4 had lower PFS (HR=1,689, 95% CI:1,189-2,399, p=0,003) and lower OS (HR=2,028, 95% CI:1,423-2,891, p<0,001). Patients with PLR≥125 had lower PFS (HR=2,229, 95% CI:1,226-4,053, p=0,009) and lower OS (HR=2,286, 95% CI:1,259-4,148, p=0,007). Patients with LMR≥2,5 had higher PFS (HR=0,464, 95% CI: 0,316-0.682, p<0,001) and higher OS (HR=0,383, 95% CI: 0,259-0,565, p<0,001) Conclusion : NLR, PLR and LMR values ​​were associated with PFS and OS in advanced stage NSCLC patients receiving chemotherapy. Both NLR, PLR and LMR could be used as prognostic factors in advanced stage NSCLC patients receiving chemotherapy"

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Latar Belakang : Pasien kanker paru sering mengalami pneumonia, hal ini terjadi karena penurunan daya tahan tubuh. Pneumonia menyulitkan penanganan, memperburuk kualitas hidup, mengurangi survival  dan seringkali merupakan penyebab  langsung kematian pasien kanker paru. Penangananan pneumonia pada pasien NSCLC(non small cell lung cancer) dengan antimikroba yang terus menerus tanpa memperhatikan kultur sensisitivitas akan menyebabkan resistensi dari kuman penyebab pneumonia tersebut.

Tujuan : Penelitian ini bertujuan untuk mengetahui karakteristik pasien NSCLC, pola kuman penyebab pneumonia pada pasien NSCLC, dan membandingkan kesintasan pasien NSCLC yang menderita pneumonia yang disebabkan oleh bakteri MDR (multidrug resistance) dengan yang disebabkan oleh bakteri non-MDR.

Metode : Penelitian ini merupakan kohort retrospektif dengan subjek penelitian adalah pasien NSCLC dengan pneumonia yang disebabkan oleh bakteri MDR dan non-MDR yang dirawat di Rumah Sakit Dr Cipto Mangunkusumo bulan Januari 2013–Desember 2017. Analisis dilakukan dengan analisis multivariat regressi cox.

Hasil: Setelah dilakukan pemeriksaan kultur BAL(Bronchoalveolar lavage), cairan pleura dan sputum, diperoleh 32 subjek hasil  kulturnya hanya bakteri MDR, 14 subjek  tumbuh bakteri MDR dan non-MDR, dan 23 subjek hanya tumbuh bakteri non-MDR.  Bakteri non- MDR terbanyak penyebab pneumonia pada pasien NSCLC adalah Klebsiella pneumoniae sebanyak 37,3%, sedangkan bakteri MDR yang terbanyak menyebabkan pneumonia pada pasien NSCLC adalah  Acinetobacter baumannii  sebanyak 23,2%. Median survival Pasien NSCLC dengan pneumonia yang disebabkan oleh bakteri MDR adalah 57 hari(43,707-70,293) sedangkan yang oleh bakteri non-MDR 92 hari(58,772-125,228). 

Simpulan : kesintasan pasien NSCLC dengan pneumonia yang disebabkan  oleh bakteri MDR lebih singkat daripada yang disebabkan oleh bakteri non-MDR.

 

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Back Ground: Lung cancer patients often experience pneumonia. This is due to the decrease in body endurance of the patients. Pneumonia complicates treatment, worsens the quality of life, reduces survival and is often a direct cause of death for lung cancer patients. Dealing with pneumonia in non-small cell lung cancer (NSCLC) patients with continuous antimicrobials treatment without regard to culture sensitivity will cause resistance of germs that cause pneumonia.

Objectives: This study aims to study the characteristics of NSCLC patients, the pattern of germs that cause pneumonia in NSCLC patients, and to compare the survival of NSCLC patients suffering from pneumonia caused by MDR (multidrug resistance) bacteria with those caused by non-MDR bacteria.

Methods: This study was a retrospective cohort with research subjects was NSCLC patients with pneumonia caused by MDR and non-MDR bacteria who were treated at Dr. Cipto Mangunkusumo Hospital from January 2013 to December 2017. Analysis was performed with multivariate cox regression analysis.

Results: The results of the culture examination of BAL(Bronchoalveolar lavage), pleural fluid and sputum showed that 32 subjects were infected only from MDR bacteria, 14 subjects infected by both MDR and non MDR bacteria, and 23 subjects were infected by only non MDR bacteria. The most non-MDR bacteria that cause pneumonia in NSCLC patients was Klebsiella pneumoniae as much as 37,3%, while the most MDR bacteria that cause pneumonia in NSCLC patients was Acinetobacter baumannii as much as 23,2%. Median survival of NSCLC patients with pneumonia caused by MDR bacteria was 57 days(43,707-70,293) while those by non-MDR bacteria was 92 days (58,772-125,228).

Conclusions: The survival of NSCLC patients with pneumonia caused by MDR bacteria is shorter than that caused by non-MDR bacteria.

 

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"ABSTRAKLatar Belakang : Paduan kemoterapi berbasis platinum dengan generasi ketiga khususnya karboplatin-vinorelbin sudah sering digunakan sebagai kemoterapi paliatif pada pasien KPKBSK stage lanjut di Indonesia khususnya Rumah Sakit Umum Pusat RSUP Persahabatan namun sampai saat ini belum terdapat data mengenai efikasi dan toksisiti paduan kemoterapi ini di RSUP Persahabatan.Metode : Desain penelitian ini adalah survey observasional retrospektif pada pasien KPKBSK stage lanjut IIIB dan IV yang menjalani kemoterapi lini I di RSUP Persahabatan dengan paduan kemoterapi karboplatin-vinorelbin sejak 1 Januari 2015 sampai 30 Maret 2017.Hasil : Total subjek dalam penelitian ini adalah 38 pasien yang mendapatkan paduan kemoterapi Karboplatin AUC-5 pada hari ke-1 dan vinorelbin 30 mg/m2 pada hari ke1 dan ke-8. Paduan kemoterapi karboplatin-vinorelbin mempunyai efikasi yang baik dengan Objective overall response rate ORR 12,5 dan clinical benefit rate CBR 87,5 . Overall survival OS pada penelitian ini adalah 34,2 dengan masa tengah tahan hidup 387 hari 12,9 bulan dan progression free survival 323 hari 10,7 bulan. Toksisiti hematologi dan nonhematologi yang paling sering terjadi adalah anemia derajat 1 38,4 dan keluhan mual, muntah derajat 2 57,9 . Pada penelitian ini terdapat 2 kasus perdarahan saluran cerna derajat 2 namun pasien masih dapat melanjutkan kemoterapi. Kami juga mendapatkan komplikasi tindakan kemoterapi berupa phlebitis ringan pada 24 pasien 65,7 dan phlebitis sedang pada 1pasien 2,6 .Kesimpulan: Paduan karboplatin-vinorelbin sebagai kemoterapi lini I memiliki efikasi yang baik serta efek toksisiti yang masih dapat ditoleransi sehingga aman diberikan pada pasien KPKBSK stage lanjut. Kata kunci: efikasi, toksisiti, hematologi, nonhematologi, objective overall response rate, clinical benefit rate, overall survival, MTTH, TTP, PFS

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ABSTRAK Background Combination of platinum base and third generation drugs Carboplatin and vinorelbine chemotherapy are frequently used as paliative chemotherapy for Non small cell lung cancer NSCLC patients in Indonesia especially in Persahabatan Hospital. But there are still no data about the activity and tolerability of this regiment in Persahabatan Hospital. This study is conducted to evaluate the efficacy and toxicity of this regiment as first line chemotherapy for advanced NSCLC patients in Persahabatan Hospital.Method This study is an observational survey retrospective study for advanced NSCLC patientswho receive carboplatin vinorelbine regiment as fisrt line chemotherapy since 1st January 2015 to 30th March 2017.Result We observea total of 38 patients who receive carboplatin 5 AUC on day 1 and vinorelbine 30mg m2 on day 1 and 8. This regiment has a good efficacy with overall response rate ORR 12,5 and clinical benefit rate CBR 87,5 . The overall survival OS is 34,2 with median of survival time 387 days 12,9 moths and PFS 323 days 10,7 moths . We found grade 1 anemia 38,4 and grade 2 nausea vomiting 57,9 as hematological and non hematological toxicity that frequently occur in this study. We found 2 cases of grade 2 gastrointestinal bleeding but the patients are still able to continue the chemotherapy after doing some correction for the haemoglobin Hb . We also found mild phlebitis in 24 patients 65,7 and 1 moderate phlebitis in 1 patient 2,6 as procedural complication of this chemotherapyConclusion Combination ofcarboplatin and vinorelbine as first line chemotherapy has a good efficacy and tolerability for advanced NSCLC patients. Key word efficacy, toxicity, haematological, non hematological, overall objective response rate ORR , clinical benefit rate CBR , overall survival OS , median time of survival, time to progression TTP and progression free survival PFS ."

"Latar Belakang: Tingginya angka kejadian kanker paru menyebabkan diperlukan pemanfaatan suatu penanda biologis spesifik kanker paru untuk menilai progresifitas penyakit. Transforming growth factor-β adalah protein yang disekresi untuk meregulasi proliferasi, diferensiasi dan kematian dari berbagai jenis sel. Semua jenis sel kekebalan termasuk sel B, sel T, sel dendritik dan makrofag mensekresi TGF-β. Jenis TGF-β yang terbanyak adalah TGF-β1. Diperlukan pengukuran kadar TGF-β1 serum darah tepi sebagai faktor prognostik pada kanker paru khususnya KPKBSK stage lanjutMetode: Penelitian ini merupakan studi perbandingan dengan disain potong lintang pada pasien kanker paru yang telah tegak diagnosis dan bersedia diambil serum darah tepi untuk pemeriksaan kadar TGF-β1 serum menggunakan Human TGF-β1 Quantikine ELISA kit dari R D. Kadar TGF-β1 serum diukur pada 68 subjek yang terdiri dari 30 subjek kelompok kanker paru dan 38 subjek kelompok bukan kanker paru.Hasil: Kadar TGF-β1 serum pada kelompok kanker paru meningkat signifikan lebih tinggi dibandingkan kelompok bukan kanker paru (median; min-max) (3601.85; 2006.87-14995.25 pg/mL vs 2510.11; 646.31-5584.07 pg/mL) (P = 0.000). Tidak ditemukan hubungan antara kadar TGF-β1 serum dengan jenis kelamin, umur, riwayat merokok, gejala klinis, gambaran bronkoskopi, jenis sitologi/histopatologi, KPKBSK stage lanjut, dan status tampilan umum. Median Survival Time (95% CI) TGF-β1 < 3601.85 pg/mL adalah 9.7 (2.4-16.9) bulan sedangkan TGF-β1 ≥ 3601.85 pg/mL adalah 16.7 (7.7-25.7) bulan. Over all survival TGF-β1 13.3 (5.8-20.8) bulanKesimpulan: Kadar TGF-β1 serum meningkat pada kelompok kanker paru dibandingkan kelompok bukan kanker paru. Kadar TGF-β1 serum belum dapat digunakan sebagai marker prognostik kanker paru.

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Beckground: The high incidence rate of lung cancer leads to the utilization of a specific biological marker of lung cancer to assess disease progression. Transforming growth factor-β is a secreted protein to regulate the proliferation, differentiation and death of different cell types. Types of immune cells are B cells, T cells, dendritic cells and macrophages secreting TGF-β. The most common type of TGF-β is TGF-β1. Therefore, measurement of serum level of TGF-β1 as a prognostic factors in lung cancer, especially advanced stage NSCLC, to assess progressivity of lung cancer is needed. Method: This study is a comparative study with cross-sectional design in lung cancer patients who had been diagnosed and were willing to be taken for examination of peripheral blood serum levels of TGF-β1 using the Quantikine Human TGF-β1 ELISA kit from R&D system. TGF-β1 serum levels were measured in 68 subjects consisted of 30 subjects with lung cancer group and 38 subjects controlled group. Result: Serum level of TGF-β1 in lung cancer group increased significantly higher than control group (median; min-max) (3601.85; 2006.87-14995.25 pg/mL vs. 2510.11; 646.31-5584.07 pg/mL) (P = 0.000). There was no association between serum level of TGF-β1 with gender, age, smoking history, clinical symptoms, bronchoscopy, cytology/histopathology, advanced stage of NSCLC, and performance status. Median Survival Time (95% CI) TGF-β1 <3601.85 pg/mL was 9.7 (2.4-16.9) months while TGF-β1 ≥ 3601.85 pg/mL was 16.7 (7.7-25.7) months. Over all survival TGF-β1 13.3 (5.8-20.8) months. Conclusion: Serum level of TGF-β1 is higher in the lung cancer group compared to controlled group. Serum TGF-β1 levels can not be used as a prognostic markers of lung cancer."

"Latarbelakang: Cell-free DNA (cfDNA) sebagai liquid biopsy dapat digunakan sebagai alat diagnostik noninvasif pada kanker paru. Cell-free DNA membawa informasi genetik sel kanker dan berkorelasi dengan karakteristik tumor. Penelitian ini mengevaluasi perancf DNA dalam menentukan prognosis pada pasien Kanker Paru Bukan Karsinoma Sel Kecil (KPKBSK).Metode: Cell-free DNA diisolasidari 23 serum pasien adenokarsinoma paru di Hiroshima University Hospital pada tahun 2006-2018. Mutasi gen EGFR ekson 19 E745-A750del dan ekson 21 L858R pada tumor diperiksa pada saat diagnosis. Deteksimutasi gen EGFR ekson 19 E745-A750del dan ekson 21 L858R pada cfDNA dilakukan dengan menggunakan droplet digital PCR.Hasil: Dari total 23 pasien, 10 pasien dengan delesi E745-A750del dan 13 pasien dengan mutasi L858R terdeteksi pada tumor. Delesi E745-A750del dan mutasi L858R pada cfDNA terdeteksi pada 6 dan 8 pasien, secara berurutan. Variant allele frekuency yang terdeteksis ebesar 0,01%-18,6%. Median angka tahan hidup untuk pasien yang terdeteksi cfDNA adalah 42 bulan dan pasien yang tidak terdeteksi cfDNA adalah 76 bulan. (p=0,29).Kesimpulan: Terdeteksi nya cfDNA merupakan petanda noninvasif prognosis yang lebihburuk pada pasien KPKBSK.

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Background: Cell-free DNA (cfDNA) as liquid biopsy can be used as a nonivasive diagnostic tool in lung cancer. Cell-free DNA carries genetic information from cancer cells and correlated with the tumor characteristics. The present study evaluated the role of cfDNA to predict the prognosis in the nonsmall cell lung cancer (NSCLC

Methods: Cell-free DNA were isolated from 23 serum from lung adenocarcinoma patients in Hiroshima University Hospital in 2006-2018. EGFR exon 19 E740-A750 del and exon 21 L858R in the tumor were analyzed at the time of diagnosis. EGFR exon 19 E740-A750 del and exon 21 L858R in cfDNA were detected using droplet digital PCR.

Results: Of 23 patients. 10 patients with E745-A750del and 13 patients with L858R. E745-A750 del and L858R mutations on cfDNA were detected in 6 and 8, respectively. Variant allele frequency detected ranged from 0.01% to 18.6%. Median overall survival in patient with detected cfDNA was 42 months and in patient with no cfDNA detected was 76 months (p=0.29).

Conclusions: Cell-free DNA detected in the serum is a noninvasif biomarker for worse prognosis in NSCLC."

"Asam galat adalah senyawa yang memiliki efek anti kanker termasuk pada kanker paru. Diduga, efektivitas asam galat sebagai agen sitotoksik dapat ditingkatkan dengan perubahan gugus samping. Penelitian ini bertujuan untuk menguji aktivitas sitotoksik asam galat dan turunan asam galat (alkil ester galat dan asam metoksi galat). Pada penelitian ini, sel A549 diberikan asam galat dan turunannya lalu diinkubasi selama 48 jam lalu akan diukur persentase viabilitas sel terhadap kontrol menggunakan MTS (3-(4,5-dimethylthiazol-2-yl)-5-(3-carboxymethoxyphenyl)-2-(4-sulfophenyl)-2H-tetrazolium) assay. Data kemudian dianalisis menggunakan GraphPad Prism untuk mendapatkan inhibitory concentration (IC50).Hasil penelitian menunjukkan bahwa asam galat, metil galat, etil galat, propil galat, butil galat, isobutil galat, t-butil galat, dan amil galat tidak memiliki aktivitas sitotoksik. Sedangkan isoamil galat menunjukkan aktivitas sitotoksik namun IC50 dari isoamil galat kemungkinan >51,2 μg/ml. Heptil galat dan oktil galat adalah dua senyawa yang memiliki efek sitotoksik pada sel A549 dengan nilai IC50 <51,2 μg/ml yaitu 19,11 μg/ml dan 41,23 μg/ml secara berurutan. Disimpulkan bahwa heptil galat dan oktil galat memiliki aktivitas sitotoksik yang lebih baik dari asam galat pada sel A549, sedangkan asam metoksi galat tidak memiliki aktivitas sitotoksik pada sel A549.

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Gallic acid is a substance with anti-cancer activity including lung cancer. The potency of gallic acid as a cytotoxic agent can be improved by modifying its side chains. This study was aimed to examine the cytotoxic activity of gallic acid and its derivates in lung cancer cells, A549. In this study, cells were treated with gallic acid and its derivates and were incubated for 48 hour. After incubation period, percentage of cell viability over control were tested using MTS (3-(4,5-dimethylthiazol-2-yl)-5-(3-carboxymethoxyphenyl)-2-(4-sulophenyl)-2Htetrazolium) assay. Afterwards, data were analysed using GraphPad Prism to obtain inhibitory concentration (IC50).The result showed gallic acid, methyl gallate, ethyl gallate, propyl gallate, butyl gallate, isobutyl gallate, t-butyl gallate, and amyl gallate did not have cytotoxic activity. Isoamyl gallate showed cytotoxic activity, but the IC50 value was probably >51,2 μg/ml. That gallic acid derivatives with cytotoxic activities and IC50 <51,2 μg/ml were heptyl gallate and octyl gallate with IC50 values of 19,11 μg/ml and 41,23 μg/ml, respectively. However, methoxy gallate (monometohoxy gallate, dimethoxy gallate, and trimethoxy gallate) did not show any cytotoxic activity. We conclude that heptyl gallate and octyl gallate have better cytotoxic activity in A549 cells compared to gallic acid, while methoxy gallates do not have cytotoxic activity in cell A549."

"ABSTRACTLung cancer is a devastating disease with a high incidence, mortality and morbidity rate, especially in developing countries. Conventional treatment with cytotoxic chemotherapy has some limitations attributed to chemoresistance and toxicity. Recent advances have shown that first generation Tyrosine Kinase Inhibitor (TKI), Gefitinib and Erlotinib, and the newest available second generation Tyrosine Kinase Inhibitor (TKI), Afatinib, have the potential to be an option in the management of patients with epidermal growth factor receptor/ EGFR mutation positive advanced/ metastatic non-small cell lung cancer. Afatinib works by binding to EGFR irreversibly, thus inactivating the tyrosine kinase receptor. Some studies demostrated that Afatinib first-line may result in longer progression free survival (PFS) and better disease control, and as an alternative for patients who intolerance to Gefitinib or Erlotinib. In Indonesia, the era of National Health Insurance has been implemented and National Health Insurance has covered treatment for cancer, including first generation TKIs, Gefitinib dan erlotinib, for patients with EGFR mutation positive advanced/ metastatic non-small cell lung cancer at Cipto Mangunkusumo National Hospital. Afatinib, as one of the newest available second generation TKI, may be given free of charge too as an alternative if the National Health Insurance will be covered in the future. Further research is needed to know the efficacy and adverse effects that may occur in patients from developing countries."