{"title":"Transcriptional factor KLF9 overcomes 5-fluorouracil resistance in breast cancer via PTEN-dependent regulation of aerobic glycolysis.","authors":"Liang Xu, Jing Sun, Junlan Guo, Shengnan Guo, Jiangli Li, Yijun Tang, Xiaohui Liu","doi":"10.1080/1120009X.2024.2421701","DOIUrl":"https://doi.org/10.1080/1120009X.2024.2421701","url":null,"abstract":"<p><p>The emergence of resistance to 5-Fluorouracil (5-FU) is a staple in breast cancer chemotherapy. This paper delves into the role of PTEN in breast cancer resistance to 5-FU and examines the underlying molecular pathways. PTEN expression was detected in bioinformatics databases and upstream transcription factors (TFs) were identified. PTEN mRNA and protein levels, aerobic glycolysis proteins, lactate production, glucose consumption, and cell viability were measured. Binding interactions were confirmed, and cell proliferation assessed. In breast cancer cells, PTEN expression was downregulated. PTEN overexpression counteracted 5-FU resistance through the suppression of aerobic glycolysis. KLF9, as a TF upstream of PTEN, enhanced the levels of PTEN. In conclusion, the TF KLF9 inhibits the aerobic glycolysis level of breast cancer cells by up-regulating PTEN expression, thereby reducing their resistance to 5-FU. The discovery of this mechanism provides a new theoretical basis for the treatment of breast cancer.</p>","PeriodicalId":15338,"journal":{"name":"Journal of Chemotherapy","volume":" ","pages":"1-12"},"PeriodicalIF":1.9,"publicationDate":"2024-11-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142568790","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Xiaoping Zheng, Huiying Li, Jian Lin, Ping Li, Xuexi Yang, Zhumei Luo, Li Jin
{"title":"METTL3-mediated m6A modification promotes chemoresistance of intrahepatic cholangiocarcinoma by up-regulating NRF2 to inhibit ferroptosis in cisplatin-resistant cells.","authors":"Xiaoping Zheng, Huiying Li, Jian Lin, Ping Li, Xuexi Yang, Zhumei Luo, Li Jin","doi":"10.1080/1120009X.2024.2421700","DOIUrl":"https://doi.org/10.1080/1120009X.2024.2421700","url":null,"abstract":"<p><p>This study explores the relationship between m6A modification and ferroptosis in intrahepatic cholangiocarcinoma (ICC) and its impact on cisplatin resistance. We established cisplatin-resistant cells. CCK-8 and Transwell assays were conducted to evaluate the effects of METTL3 on drug resistance, migration, and invasion. RT-qPCR and Western blotting were used to measure target gene expression and the effects of overexpression and suppression. RIP, luciferase reporter assay, and other experiments were utilized to investigate the interaction between METTL3 and NRF2. Additionally, rescue experiments were performed to confirm the role of the METTL3/NRF2 axis in tumor drug resistance. METTL3 was found to be highly expressed in cisplatin-resistant cells, enhancing m6A modification levels, stabilizing NRF2 mRNA, and increasing NRF2 protein expression to inhibit ferroptosis. These findings indicate that the METTL3/NRF2 axis inhibits ferroptosis in cisplatin-resistant cells, thereby promoting chemotherapy resistance in ICC. This provides a potential direction for future research and treatment of ICC.</p>","PeriodicalId":15338,"journal":{"name":"Journal of Chemotherapy","volume":" ","pages":"1-11"},"PeriodicalIF":1.9,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142557957","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Journal of ChemotherapyPub Date : 2024-11-01Epub Date: 2024-01-19DOI: 10.1080/1120009X.2024.2302741
Indrani Biswas, Daisy Precilla S, Shreyas S Kuduvalli, Bhavani K, Sivachandran R, Anitha T S
{"title":"Ultrastructural and immunohistochemical insights on the anti-glioma effects of a dual-drug cocktail in an <i>in vivo</i> experimental model.","authors":"Indrani Biswas, Daisy Precilla S, Shreyas S Kuduvalli, Bhavani K, Sivachandran R, Anitha T S","doi":"10.1080/1120009X.2024.2302741","DOIUrl":"10.1080/1120009X.2024.2302741","url":null,"abstract":"<p><p>Glioma coined as 'butterfly tumor' exhibits intense heterogeneity at the molecular and cellular levels. Although, Temozolomide exerted a long-ranging and prevailing therapeutic effect against glioma, albeit it has provided modest survival outcome. Fucoidan, (marine brown algal derivative) has demonstrated potent anti-tumor effects including glioma. Nevertheless, there is paucity of studies conducted on Fucoidan to enhance the anti-glioma efficacy of Temozolomide. The present study aimed to explore the plausible synergistic anti-glioma efficacy of Fucoidan in combination with Temozolomide in an in vivo experimental model. The dual-drug combination significantly inhibited tumor growth in in vivo and prolonged the survival rate when compared with the other treatment and tumor-control groups, via down-regulation of inflammatory cascade- IL-6/T LR4 and JAK/STAT3 as per the immunohistochemistry findings. Furthermore, the ultrastructural analysis indicated that the combinatorial treatment had restored the normal neuronal architecture of glioma-induced rats. Overall, the dual-drug cocktail might enhance the therapeutic outcome in glioma patients.</p>","PeriodicalId":15338,"journal":{"name":"Journal of Chemotherapy","volume":" ","pages":"593-606"},"PeriodicalIF":1.9,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139491447","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Journal of ChemotherapyPub Date : 2024-11-01Epub Date: 2024-01-23DOI: 10.1080/1120009X.2024.2305066
Osman Köstek, Ahmet Demirel, Muhammet Bekir Hacıoğlu, Didem Tastekin, Senem Karabulut, Abidin Gündogdu, Nadiye Sever, Murat Ayhan, Abdussamed Çelebi, Nargiz Majidova, Alper Yaşar, Yeşim Ağyol, Pınar Erel, Erkam Kocaaslan, Ali Kaan Güren, Rukiye Arıkan, Selver Isık, Ozlem Ercelep, Sema Sezgin Goksu, Celal Alandag, İrem Bilgetekin, Burcu Caner, Ahmet Bilge Sahin, Ahmet Gulmez, Baran Akagunduz, Fatih Kose, Muhammet Ali Kaplan, Ender Dogan, Teoman Sakalar, Deniz Can Guven, Mustafa Gurbuz, Yakup Ergun, Mustafa Karaagac, Sema Turker, Ozlem Ozkul, Birol Yıldız, Süleyman Sahin, Atike Gokcen Demiray, Murat Sari, Bülent Erdogan, İlhan Hacıbekiroglu, Ömür Berna Çakmak Öksüzoğlu, Saadettin Kilickap, Ahmet Bilici, İbrahim Vedat Bayoglu, Sernaz Topaloglu, İrfan Cicin
{"title":"The prognostic factors in patients with advanced hepatocellular carcinoma: impact of treatment sequencing.","authors":"Osman Köstek, Ahmet Demirel, Muhammet Bekir Hacıoğlu, Didem Tastekin, Senem Karabulut, Abidin Gündogdu, Nadiye Sever, Murat Ayhan, Abdussamed Çelebi, Nargiz Majidova, Alper Yaşar, Yeşim Ağyol, Pınar Erel, Erkam Kocaaslan, Ali Kaan Güren, Rukiye Arıkan, Selver Isık, Ozlem Ercelep, Sema Sezgin Goksu, Celal Alandag, İrem Bilgetekin, Burcu Caner, Ahmet Bilge Sahin, Ahmet Gulmez, Baran Akagunduz, Fatih Kose, Muhammet Ali Kaplan, Ender Dogan, Teoman Sakalar, Deniz Can Guven, Mustafa Gurbuz, Yakup Ergun, Mustafa Karaagac, Sema Turker, Ozlem Ozkul, Birol Yıldız, Süleyman Sahin, Atike Gokcen Demiray, Murat Sari, Bülent Erdogan, İlhan Hacıbekiroglu, Ömür Berna Çakmak Öksüzoğlu, Saadettin Kilickap, Ahmet Bilici, İbrahim Vedat Bayoglu, Sernaz Topaloglu, İrfan Cicin","doi":"10.1080/1120009X.2024.2305066","DOIUrl":"10.1080/1120009X.2024.2305066","url":null,"abstract":"<p><p>The prognosis of patients with advanced HCC can vary widely depending on factors such as the stage of the cancer, the patient's overall health, and treatment regimens. This study aimed to investigate survival outcomes and associated factors in patients with hepatocellular carcinoma (HCC). In this retrospective study, data from 23 medical oncology clinics were analyzed. Progression-free survival (PFS) and overall survival (OS) values were estimated using the Kaplan-Meier method. Prognostic factors associated with survival which were identified in univariate analysis were subsequently evaluated in a multivariate Cox-regression survival analysis was conducted using the backward stepwise (Conditional LR) method to determine the independent predictors of PFS and OS. Of 280 patients, 131 received chemotherapy and 142 received sorafenib, 6 received atezolizumab plus bevacizumab and 1 received nivolumab for first-line setting. The median follow-up time was 30.4 (95%CI 27.1-33.6) months. For-first line, median PFS was 3.1 (95%CI2.7-3.5) months, and it was significantly longer in patients who received sorafenib or atezolizumab-bevacizumab or nivolumab (PFS 5.8 (95%CI 4.2-7.5) than in those received chemotherapy (PFS 2.1 (95%CI 1.9-2.3) in the first-line setting (p < 0.001). Multivariate analysis revealed that male gender (HR: 2.75, 95% CI: 1.53-4.94, p = 0.01), poor ECOG performance score (HR: 1.88, 95% CI: 1.10-3.21, p = 0.02), higher baseline AFP level (HR: 2.38, 95% CI: 1.54-3.67, p < 0.001) and upfront sorafenib treatment (HR,0.38; 95% CI: 0.23-0.62, p < 0.001) were significantly associated with shorter PFS. The median OS was 13.2 (95%CI 11.1-15.2) months. It was significantly longer in patients who received sorafenib or atezolizumab-bevacizumab or nivolumab in the first-line setting followed by TKIs (sorafenib or regorafenib, OS 18.6 (95%CI 13.8-23.5)) compared to those who received chemotherapy (OS 10.3 (95%CI 6.6-14.1)) in the first-line setting. The multivariate analysis revealed that upfront chemotherapy treatment approach, male gender (HR: 1.77, 95% CI: 1.07-2.94, p = 0.02), poor ECOG performance score (HR: 1.96, 95% CI: 1.24-3.09, p = 0.004) and Child-Pugh score, presence of extrahepatic disease (HR: 1.54, 95% CI: 1.09-2.18, p = 0.01), and higher baseline AFP value (HR: 1.50, 95% CI: 1.03-2.19, p = 0.03) were significantly associated with poor prognosis. Additionally, regarding of treatment sequence, upfront sorafenib followed by regorafenib showed a significantly lower risk of mortality (HR: 0.40, 95% CI: 0.25-0.66, p < 0.001). Sorafenib followed by regorafenib treatment was associated with a significantly lower risk of mortality rather than upfront sorafenib followed by BSC group or upfront chemotherapy followed by TKIs. These findings underscore the importance of the optimal treatment sequences to improve survival in patients with advanced HCC.</p>","PeriodicalId":15338,"journal":{"name":"Journal of Chemotherapy","volume":" ","pages":"613-621"},"PeriodicalIF":1.9,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139541653","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Journal of ChemotherapyPub Date : 2024-11-01Epub Date: 2024-01-17DOI: 10.1080/1120009X.2024.2302736
Mustafa Wasifuddin, Nosakhare Paul Ilerhunmwuwa, Henry Becerra, Narek Hakobyan, Saad Wasifuddin, Hayder Al Asadi, Jen Chin Wang
{"title":"Review of real-world experience with lurbinectedin in relapsed/refractory small cell lung cancer.","authors":"Mustafa Wasifuddin, Nosakhare Paul Ilerhunmwuwa, Henry Becerra, Narek Hakobyan, Saad Wasifuddin, Hayder Al Asadi, Jen Chin Wang","doi":"10.1080/1120009X.2024.2302736","DOIUrl":"10.1080/1120009X.2024.2302736","url":null,"abstract":"<p><p>Lurbinectedin, a novel antineoplastic agent, was granted the orphan drug designation by the United States Food and Drug Administration (US FDA) and approved for use in relapsed/refractory small cell lung cancer in June 2020. The approval was granted after its efficacy was demonstrated in a multicenter open-label, multi-cohort study enrolling 105 participants. Since then, real-world studies have examined the efficacy and safety profiles of lurbinectedin in clinical practice. By examining these outcomes, this review aims to provide clinicians with the tools necessary to make informed clinical decisions.</p>","PeriodicalId":15338,"journal":{"name":"Journal of Chemotherapy","volume":" ","pages":"587-592"},"PeriodicalIF":1.9,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139484443","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Journal of ChemotherapyPub Date : 2024-11-01Epub Date: 2023-12-26DOI: 10.1080/1120009X.2023.2298153
Yinfeng Gu, Jinjin Li, Hongjun Guan, Changpeng Sun
{"title":"Prognostic and immunological values of SKA3 for overall survival in lung adenocarcinoma and its RNA binding protein involved mechanisms.","authors":"Yinfeng Gu, Jinjin Li, Hongjun Guan, Changpeng Sun","doi":"10.1080/1120009X.2023.2298153","DOIUrl":"10.1080/1120009X.2023.2298153","url":null,"abstract":"<p><p>This article aimed to investigate the correlations among SKA3 expression and prognosis, clinical relevance, tumor immunity, and RNA-binding protein (RBP)-involved mechanisms for overall survival (OS) in lung adenocarcinoma (LUAD). To explore the SKA3 expression level in LUAD by analyzing the genomic data as well as related clinical characteristics from the database of TCGA. Nomogram and gene set enrichment analysis (GSEA) were applied, respectively, to evaluate the performance of SKA3 in LUAD. Correlations between SKA3 and immunity and RBP-involved mechanisms were also performed. SKA3 had a higher expression level in LUAD samples than in adjacent normal lung samples, with shorter survival times in the high-SKA3-expressed LUAD subgroup (P < 0.05). qRT-PCR results remained consistent (P < 0.05). Uni-/multivariate Cox analyses revealed that SKA3 could have independent prognostic ability for LUAD (both P < 0.05). The nomogram model constructed with clinical pathological parameters and SKA3 expression levels predicted OS rates for LUAD and GSEA revealed SKA3-related pathways. In aspects of tumor immunity, SKA3 was significantly involved with tumor neoantigen burden, tumor mutational burden, immune cell pathways, and immune checkpoint inhibitor (ICI) molecules (all P < 0.05). The CellMiner database also found significant correlations between SKA3 and the antitumor drug sensitivity of chemotherapy, fenretinide, and PX-316. Besides, a total of nine LncRNA/RBP/SKA3 networks were revealed in LUAD for their RBP-involved mechanisms. SKA3 could serve as a potential biomarker for OS prognosis and immunotherapy in LUAD. LncRNA/RBP/SKA3 networks were identified in LUAD for their RBP-involved mechanisms, paving the way for further experimental verifications.</p>","PeriodicalId":15338,"journal":{"name":"Journal of Chemotherapy","volume":" ","pages":"566-579"},"PeriodicalIF":1.9,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139037677","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Journal of ChemotherapyPub Date : 2024-11-01Epub Date: 2024-01-08DOI: 10.1080/1120009X.2023.2298156
Juxian Sun, Chang Liu, Dandan He, Dafeng Jiang, Shuqun Cheng, Jie Shi
{"title":"A new chemotherapy strategy for advanced hepatocellular carcinoma with exrahepatic metastasis: predictors of long-term survival.","authors":"Juxian Sun, Chang Liu, Dandan He, Dafeng Jiang, Shuqun Cheng, Jie Shi","doi":"10.1080/1120009X.2023.2298156","DOIUrl":"10.1080/1120009X.2023.2298156","url":null,"abstract":"<p><p>The prognosis of hepatocellular carcinoma (HCC) with extrahepatic metastasis (EHM) is extremely poor. This study aimed to identify prognostic factors for systemic chemotherapy of HCC with EHM. Eighty-five patients who received systemic chemotherapy for HCC with EHM between May 2014 and October 2021 were retrospectively evaluated. Patient demographic data and characteristics of hepatic tumors and EHM were assessed to identify factors that were significantly associated with prognosis. Of the 85 patients, 68 (80.0%) had pulmonary metastasis, 11 (12.9%) had abdominal lymph node metastasis, 7 (8.2%) had abdominal metastasis, and 4 (4.7%) had bone metastasis. The median overall survival (OS) was 17.0 months, and the median progression-free survival (PFS) was 5.1 months. Univariate analysis of OS showed that synchronous EHM-HCC, serum albumin level<35 g/l and number of hepatic tumors>1 were significantly associated with poorer OS. The results of the multivariate analysis indicated that the serum albumin level and number of hepatic tumors were independent prognostic factors. Subgroup analysis of patients with 0, 1, or 2 of these independent prognostic factors showed that the median OS was 24.0 months, 16.2 months and 7.7 months and that the ORR was 38.3%, 22.6% and 0, respectively. Systemic chemotherapy is beneficial for well-selected HCC patients with EHM. The number of hepatic tumors and serum albumin level were independent risk factors for prognosis, and the number of risk factors significantly influenced OS. Therefore, these factors need to be considered before administering systemic chemotherapy for HCC patients with EHM.</p>","PeriodicalId":15338,"journal":{"name":"Journal of Chemotherapy","volume":" ","pages":"580-586"},"PeriodicalIF":1.9,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139377713","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Journal of ChemotherapyPub Date : 2024-11-01Epub Date: 2023-12-20DOI: 10.1080/1120009X.2023.2294582
Shijie Wu, Ting Luo, Xiaoyong Lei, Xiaoyan Yang
{"title":"Emerging role of competing endogenous RNA in lung cancer drug resistance.","authors":"Shijie Wu, Ting Luo, Xiaoyong Lei, Xiaoyan Yang","doi":"10.1080/1120009X.2023.2294582","DOIUrl":"10.1080/1120009X.2023.2294582","url":null,"abstract":"<p><p>Lung cancer remains one of the most common malignant cancers worldwide, and its survival rate is extremely low. Chemotherapy, the mainstay of lung cancer treatment, is not as effective as it could be due to the development of cellular resistance. The molecular mechanisms of drug resistance in lung cancer remain to be elucidated. Accumulating evidence suggests that ceRNAs are involved in various carcinogenesis and development. CeRNA is a transcript that regulates each other through competition with miRNA. However, the relationship between ceRNAs and chemoresistance in lung cancer remains unclear. In this narrative review, we provided a summary of treatment approaches that focus on ceRNA networks to overcome drug resistance.</p>","PeriodicalId":15338,"journal":{"name":"Journal of Chemotherapy","volume":" ","pages":"546-565"},"PeriodicalIF":1.9,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138829898","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Evaluation of predictors of third-generation cephalosporin non-susceptibility and factors affecting recurrence or death in bacteremia caused by <i>Citrobacter freundii</i> complex<i>, Enterobacter cloacae</i> complex, and <i>Klebsiella aerogenes</i>.","authors":"Kazuhiro Kobayashi, Atsuko Hata, Waki Imoto, Shigeki Kakuno, Wataru Shibata, Koichi Yamada, Hiroshi Kawaguchi, Norihiro Sakurai, Toshikazu Ito, Kazuya Uenoyama, Tamotsu Takahashi, Satoru Ueda, Toshiro Katayama, Masahide Onoue, Hiroshi Kakeya","doi":"10.1080/1120009X.2024.2323326","DOIUrl":"10.1080/1120009X.2024.2323326","url":null,"abstract":"<p><p>Factors involved in the susceptibility of third-generation cephalosporins (3GCs) to bacteremia caused by <i>Citrobacter freundii</i> complex, <i>Enterobacter cloacae</i> complex, and <i>Klebsiella aerogenes</i> were investigated based on a case-case-control design. Antimicrobial therapy administered 30 days prior to bacteremia and hospitalization within 90 days were common risk factors for the 3GC susceptible and 3GC non-susceptible groups, while hospitalization from an institution or another hospital was a specific risk factor for the 3GC non-susceptible group. We also attempted to examine the factors affecting the clinical outcome of bacteremia. Hospitalization more than 14 days before the onset of bacteremia was an independent factor indicating poor clinical outcome. In contrast, the implementation of source control was an independent predictor of successful treatment. Although a longer hospital stay before the onset of bacteremia was associated with worse clinical outcomes, implementation of source control may have contributed to improved treatment outcomes for bacteremia.</p>","PeriodicalId":15338,"journal":{"name":"Journal of Chemotherapy","volume":" ","pages":"521-531"},"PeriodicalIF":1.9,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140049632","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Journal of ChemotherapyPub Date : 2024-11-01Epub Date: 2024-01-22DOI: 10.1080/1120009X.2024.2305062
Faruk Tas, Akin Ozturk, Kayhan Erturk
{"title":"Timing of chemotherapy after diagnosis of small cell lung cancer.","authors":"Faruk Tas, Akin Ozturk, Kayhan Erturk","doi":"10.1080/1120009X.2024.2305062","DOIUrl":"10.1080/1120009X.2024.2305062","url":null,"abstract":"<p><p>Systemic chemotherapy is the backbone of therapeutic management in small cell lung cancer (SCLC) and delay of treatment may lead to adverse patient outcomes. This study was conducted to determine the time elapsed between pathological diagnosis and initiation of chemotherapy in SCLC patients and to evaluate its clinical significance. A total of 323 pathologically confirmed SCLC patients were enrolled in the study and analyzed retrospectively. The median value of the patients' time to treatment was used as the cut-off value in distinguishing between early and late chemotherapy. The median (range) of the time interval between the pathological diagnosis and the initiation of chemotherapy was 18 days (1-257). Compared with other clinical variables, only the performance status of patients was significantly associated with the time from diagnosis to initiation of chemotherapy; patients with poor prognostic factors received chemotherapy earlier than other patients (32.9 <i>vs</i> 18.9%, <i>p</i> = 0.004, and 14.5 <i>vs</i> 19 days, <i>p</i> = 0.006). Although patients who received early treatment were found to live less, there was no statistically significant difference in overall survival in patients according to the timing of chemotherapy administration (<i>p</i> = 0.08). In conclusion, there are controversial results about the timing of chemotherapy administration to SCLC patients. More standardized definitions and guides for calculation of the time interval between diagnosis and treatment are needed to better understand the delays in the treatment of patients with clinically rapidly disseminating SCLC.</p>","PeriodicalId":15338,"journal":{"name":"Journal of Chemotherapy","volume":" ","pages":"607-612"},"PeriodicalIF":1.9,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139512026","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}