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Hui Li, Ying Wang, Jiali Yang, Xiaoming Liu, Juan Shi
BACKGROUND: The incidence of lung cancer is gradually increased, and the cystic fibrosis transmembrane conductance regulator (CFTR) has recently demonstrated to have an implication in the deoncogenesis and malignant transformation of many types of cancers. The aim of this study is to investigate impacts of CFTR on the malignant features of lung adenocarcinoma A549 cells. METHODS: The capacity of cell proliferation, migration, invasion and clonogenicity of non-small cell lung cancer A549 cells were detected by CCK8 cell proliferation assay, cell scratch assay, Transwell cell invasion assay and clone formation assay, respectively...
February 20, 2018: Zhongguo Fei Ai za Zhi, Chinese Journal of Lung Cancer
Wenzhe Li, Huailei Ma, Jin Zhang, Ling Zhu, Chen Wang, Yanlian Yang
A correction to this article has been published and is linked from the HTML and PDF versions of this paper. The error has been fixed in the paper.
March 6, 2018: Scientific Reports
Liang Liu, Lin Yang, Wei Yan, Jing Zhai, Donald Pizzo, Peiguo Chu, Andrew R Chin, Meng Shen, Chuan Dong, Xianhui Ruan, Xiubao Ren, George Somlo, Shizhen Emily Wang
PURPOSE: Preoperative or neoadjuvant therapy (NT) is increasingly used in patients with locally advanced or inflammatory breast cancer (BC) to allow optimal surgery and aim for pathological response. However, many BCs are resistant or relapse after treatment. Here, we investigated conjunctive chemotherapy-triggered events occurring systemically and locally, potentially promoting a cancer stem-like cell (CSC) phenotype and contributing to tumor relapse. EXPERIMENTAL DESIGN: We started by comparing the effect of paired pre- and post-NT patient sera on the CSC properties of BC cells...
March 2, 2018: Clinical Cancer Research: An Official Journal of the American Association for Cancer Research
Björn Logi Isfoss, Bo Holmqvist, Elin Sand, Johan Forsell, Helena Jernström, Håkan Olsson
BACKGROUND: It is not known whether stromal cells in benign breast tissue can mediate risk of breast cancer. We recently described aldehyde dehydrogenase 1 A1 (ALDH1) positive (+) cells in morphologically normal breast stroma of premenopausal women, and the data indicated that their distribution is associated with clinical risk factors for breast cancer. The aim of the present study was to define the identities of these cells using histologic and immunohistologic methods, and to investigate associations between those cells and hormonal and genetic risk factors in pre- and postmenopausal women...
February 27, 2018: BMC Cancer
Timothy Henderson, Mingyi Chen, Morgan A Darrow, Chin-Shang Li, Chi-Lu Chiu, Arta M Monjazeb, William J Murphy, Robert J Canter
BACKGROUND: Cancer stem cells (CSCs) have been shown to resist chemotherapy and promote metastasis after cytotoxic therapies. We sought to determine if the expression of CSC markers (aldehyde dehydrogenase [ALDH], CD44, and epidermal growth factor receptor [EGFR]) predicted outcomes in soft-tissue sarcoma (STS) patients. METHODS: We queried an institutional database of 23 STS patients and evaluated immunohistochemical expression of CSC markers ALDH, CD44, and EGFR...
March 2018: Journal of Surgical Research
Jingxia Chen, Hongfen Chen, Hanbing Yang, Huizhen Dai
In this study, we investigated the functional role and prognostic value of spindle pole body component 25 (SPC25) in non-small cell lung cancer (NSCLC). SPC25 expression profile in lung adenocarcinoma (LUAD), lung squamous cell carcinoma (LUSC) and normal lung tissues was examined by using data from the Cancer Genome Atlas (TCGA) and the Human Protein Atlas (HPA). LUAD A549 cells and LUSC H520 cells were used to investigate the influence of SPC25 on cancer stem cell (CSC) properties in terms of the proportion of CD133+ cells, tumorsphere formation and CSC markers, including CD133, ALDH1 and Sox2...
February 9, 2018: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
Claudia Corrò, Holger Moch
Characterised by high intra- and inter-tumor heterogeneity, metastatic renal cell carcinoma (RCC) is resistant to chemo- and radiotherapy. Therefore, the development of new prognostic and diagnostic markers for RCC patients is needed. Cancer stem cells (CSCs) are a small population of neoplastic cells within a tumor which present characteristics reminiscent of normal stem cells. CSCs are characterised by unlimited cell division, maintenance of the stem cell pool (self-renewal), and capability to give rise to all cell types within a tumor; and contribute to metastasis in vivo (tumourigenicity), treatment resistance and recurrence...
January 2018: Journal of Pathology. Clinical Research
Yong Wha Moon, Hee-Jung An, Ja Seung Koo, Gun Min Kim, Hyunju Han, Seho Park, Seung Il Kim, Hyung Seok Park, Sewha Kim, Seung Ki Kim, Seung Ah Lee, Sohyun Hwang, Gun Woo Son, Joohyuk Sohn
CD44+ /CD24- or aldehyde dehydrogenase 1 (ALDH1) has been suggested as a potential marker for breast cancer stem cells. In the cohort of 819 patients with resected ER-positive breast cancer, the '5-year relapse group' within 5 years postsurgery during adjuvant tamoxifen treatment and the 'non-relapse group' longer than 9 years postsurgery were defined. Paraffin-embedded tumor tissues were available in 31 patients from 5-year relapse group and 68 from the non-relapse group. CD44/ CD24 and ALDH1 expression was evaluated by immunohistochemical staining...
January 5, 2018: Oncotarget
Shan Xu, Xiaobo Du, Gang Feng, Yu Zhang, Jie Li, Binwei Lin, Linglin Yang, Shaozhi Fu, Jingbo Wu
Background and Purpose: We aimed to explore the anti-tumor effect and mechanism of the combination of cisplatin (DDP)-containing thermosensitive hydrogel (PEG-PCL-PEG, or PECE) and paclitaxel (PTX)-loaded MPEG-PCL polymeric micelles called PDMP on human cervical carcinoma (HeLa) cell. In our previous studies, we found that PDMP in situ treatment of lung cancer will be liable to have potential in Lung cancer patients. Results: Compared with other treatments, PDMP was most effective in prolonging survival time (P < 0...
January 2, 2018: Oncotarget
Qiang Wang, Jun Jiang, Guoguang Ying, Xiao-Qing Xie, Xia Zhang, Wei Xu, Xuemin Zhang, Erwei Song, Hong Bu, Yi-Fang Ping, Xiao-Hong Yao, Bin Wang, Shilei Xu, Ze-Xuan Yan, Yanhong Tai, Baoquan Hu, Xiaowei Qi, Yan-Xia Wang, Zhi-Cheng He, Yan Wang, Ji Ming Wang, You-Hong Cui, Feng Chen, Kun Meng, Zhaoyi Wang, Xiu-Wu Bian
The 66 kDa estrogen receptor alpha (ERα66) is the main molecular target for endocrine therapy such as tamoxifen treatment. However, many patients develop resistance with unclear mechanisms. In a large cohort study of breast cancer patients who underwent surgery followed by tamoxifen treatment, we demonstrate that ERα36, a variant of ERα66, correlates with poor prognosis. Mechanistically, tamoxifen directly binds and activates ERα36 to enhance the stemness and metastasis of breast cancer cells via transcriptional stimulation of aldehyde dehydrogenase 1A1 (ALDH1A1)...
February 2, 2018: Cell Research
Ugo Testa, Eleonora Petrucci, Luca Pasquini, Germana Castelli, Elvira Pelosi
Four main histological subtypes of ovarian cancer exist: serous (the most frequent), endometrioid, mucinous and clear cell; in each subtype, low and high grade. The large majority of ovarian cancers are diagnosed as high-grade serous ovarian cancers (HGS-OvCas). TP53 is the most frequently mutated gene in HGS-OvCas; about 50% of these tumors displayed defective homologous recombination due to germline and somatic BRCA mutations, epigenetic inactivation of BRCA and abnormalities of DNA repair genes; somatic copy number alterations are frequent in these tumors and some of them are associated with prognosis; defective NOTCH, RAS/MEK, PI3K and FOXM1 pathway signaling is frequent...
February 1, 2018: Medicines (Basel, Switzerland)
Milene Pereira Moreira, Letícia da Conceição Braga, Geovanni Dantas Cassali, Luciana Maria Silva
The cancer stem cell (CSC) concept is currently employed to explain the mechanism of multidrug resistance that is implicated in the reduced efficacy of many chemotherapeutic agents, consequently leading to metastatic spread and disease relapse. We searched for potential predictive markers of doxorubicin (DOX) resistance in breast cancer stem cells (BCSCs) of the BT-549 human triple-negative breast cancer (TNBC) cell line classified as a claudin-low subtype. In this study, we show that BT-549 presents a BCSCs-like subset determined by a CD44+/high/CD24-/low/ALDH1+ phenotype...
January 15, 2018: Experimental Cell Research
Hilla Solomon, Nathan Dinowitz, Ioannis S Pateras, Tomer Cooks, Yoav Shetzer, Alina Molchadsky, Meital Charni, Stav Rabani, Gabriela Koifman, Ohad Tarcic, Ziv Porat, Ira Kogan-Sakin, Naomi Goldfinger, Moshe Oren, Curtis C Harris, Vassilis G Gorgoulis, Varda Rotter
Emerging notion in carcinogenesis ascribes tumor initiation and aggressiveness to cancer stem cells (CSCs). Specifically, colorectal cancer (CRC) development was shown to be compatible with CSCs hypothesis. Mutations in p53 are highly frequent in CRC, and are known to facilitate tumor development and aggressiveness. Yet, the link between mutant p53 and colorectal CSCs is not well-established. In the present study, we set to examine whether oncogenic mutant p53 proteins may augment colorectal CSCs phenotype...
January 18, 2018: Oncogene
Hiroshi Nagata, Soichiro Ishihara, Junko Kishikawa, Hirofumi Sonoda, Koji Murono, Shigenobu Emoto, Manabu Kaneko, Kazuhito Sasaki, Kensuke Otani, Takeshi Nishikawa, Toshiaki Tanaka, Tomomichi Kiyomatsu, Keisuke Hata, Kazushige Kawai, Hiroaki Nozawa
Despite extensive research on cancer stem cells in colorectal cancer, the impact of stem cell markers on patient survival remains unclear, particularly in those with distant metastasis. In this study, we focused on colon cancer with peritoneal metastasis and investigated the association between the expression of CD133, aldehyde dehydrogenase-1 (ALDH1) and leucine-rich repeating G-protein coupled receptor-5 (Lgr5), and disease prognosis. Putative stem cell marker expression was immunohistochemically evaluated in samples from 142 primary tumours and 75 peritoneal nodules...
January 8, 2018: International Journal of Oncology
Sarah A Bliss, Sunirmal Paul, Piotr W Pobiarzyn, Seda Ayer, Garima Sinha, Saumya Pant, Holly Hilton, Neha Sharma, Maria F Cunha, Daniel J Engelberth, Steven J Greco, Margarette Bryan, Magdalena J Kucia, Sham S Kakar, Mariusz Z Ratajczak, Pranela Rameshwar
This study proposes that a novel developmental hierarchy of breast cancer (BC) cells (BCCs) could predict treatment response and outcome. The continued challenge to treat BC requires stratification of BCCs into distinct subsets. This would provide insights on how BCCs evade treatment and adapt dormancy for decades. We selected three subsets, based on the relative expression of octamer-binding transcription factor 4 A (Oct4A) and then analysed each with Affymetrix gene chip. Oct4A is a stem cell gene and would separate subsets based on maturation...
January 10, 2018: Scientific Reports
Aline Brito de Lima, Luciana Maria Silva, Nikole Gontijo Gonçales, Maria Raquel Santos Carvalho, Agnaldo Lopes da Silva Filho, Letícia da Conceição Braga
Epithelial ovarian cancer (EOC) is the most lethal gynecological malignancy, and the lack of chemoresistance biomarkers contributes to the poor prognosis. Cancer stem cells (CSC) have been investigated in EOC to understand its relationship with chemoresistance and recurrence. In this context, in vitro cultivation-models are important tools for CSC studies. MicroRNAs (miRNAs) play key roles in cancer, CSC regulation and apoptosis. Thus, this study aims to evaluate the tumorsphere model as CSC-enrichment method in EOC studies and investigate apoptosis-related miRNAs in tumorspheres-derived EOC cell lines...
January 6, 2018: Cancer Microenvironment: Official Journal of the International Cancer Microenvironment Society
Tahani Louhichi, Hanene Saad, Myriam Ben Dhiab, Sonia Ziadi, Mounir Trimeche
BACKGROUND: Previous investigations have indicated that CD10 is associated with biological aggressivity in human cancers, but the use of this marker for diagnosis and prognosis is more complex. The aim of this study was to evaluate the expression of CD10 in breast cancer and its association with the clinicopathological features. In addition, we investigated whether a relationship exists between CD10 expression and cancer stem cells. METHODS: CD10 expression was examined by the immunohistochemistry in a series of 133 invasive breast carcinoma cases...
January 6, 2018: BMC Cancer
Jin Won Park, Kyung-Ho Jung, Jin Hee Lee, Seung Hwan Moon, Young Seok Cho, Kyung-Han Lee
We hypothesized that aldehyde dehydrogenase1 (ALDH1) protects cancer cells from retinaldehyde-induced cytotoxicity, and that targeting this enzyme would enhance the therapeutic effect of retinaldehyde. ALDEFLUOR™ assays showed high ALDH activity in A549 and H522 cancer cells and low activity in H1666 and T47D cancer cells. Immunoblots showed that expression of ALDH1A1 and ALDH1A3 was high in A549 and H522 cells, but low in H1666 cells. HPLC confirmed that N, N-diethylaminobenzaldehyde (DEAB) inhibits ALDH-mediated disposal of retinaldehyde in A549 cells and lysates...
November 21, 2017: Oncotarget
Mairobys Socorro, Angela Criscimanna, Patricia Riva, Manuj Tandon, Krishna Prasadan, Ping Guo, Abhinav Humar, Sohail Z Husain, Steven D Leach, George K Gittes, Farzad Esni
Multipotent epithelial cells with high Aldehyde dehydrogenase activity have been previously reported to exist in the adult pancreas. However, whether they represent true progenitor cells remains controversial. In this study, we isolated and characterized cells with ALDH activity in the adult mouse or human pancreas during physiological conditions or injury. We found that cells with ALDH activity are abundant in the mouse pancreas during early postnatal growth, pregnancy, and in mouse models of pancreatitis and type 1 diabetes (T1D)...
December 13, 2017: Scientific Reports
Xiaotang Yu, Fan Zhang, Jun Mao, Ying Lu, Jiazhi Li, Wei Ma, Shujun Fan, Chunying Zhang, Qing Li, Bo Wang, Bo Song, Lianhong Li
Protein tyrosine phosphatase receptor-type δ (PTPRD) is frequently inactivated in human cancers. This study investigated the role of PTPRD in the regulation of stemness, epithelial-mesenchymal transition (EMT), and migration and invasion in breast cancer cells. In vitro , PTPRD silencing using siRNA enhanced the stem cell-like properties of breast cancer cells, including their mammosphere- and holoclone-forming abilities, and it promoted tumorigenicity in vivo . PTPRD knockdown also increased the CD44+ /CD24- breast cancer stem cell (BCSC) population and the expression of the stem cell markers ALDH1 and OCT4...
November 17, 2017: Oncotarget
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