Intracellular actions of gonadotropic and peptide hormones and the therapeutic value of GnRH-agonists in ovarian cancer

Author(s):  
Günter Emons ◽  
Olaf Ortmann ◽  
Gurcharan S. Pahwa ◽  
Reinhard Hackenberg ◽  
F. Oberheuser ◽  
...  
1988 ◽  
Vol 95 (12) ◽  
pp. 1231-1236 ◽  
Author(s):  
KAMMA BERTELSEN ◽  
MOGENS KERN HANSEN ◽  
POUL HJORTKAER PEDERSEN ◽  
GORM LARSEN ◽  
MOGENS NYLAND ◽  
...  

1973 ◽  
Vol 59 (4) ◽  
pp. 259-267 ◽  
Author(s):  
Luciano Luciani ◽  
Giuseppe Maria de Palo ◽  
Umberta Conti ◽  
Franco Mattavelli ◽  
Francesco Di Re

The effect of triethylene thiophosphoramide (Thio-TEPA), an alkylating agent structurally related to nitrogen mustard, has been described in 39 cases of very advanced ovarian carcinoma. Of the 39 cases treated, 21 had been previously treated and 18 were new cases. In the 39 cases, 42 cycles were evaluable (table 1). 8 cases showed a varying degree of improvement. Marked regression of growth and improvement of symptoms (regression exceeding 50%) was achieved in 7 cases (table 1). Regression of less than 50 % was achieved in 1 case (table 1). The clinical regression is only temporary. A high percentage of cases had side-effects. Of the 42 evaluable, 29 (69%) had one or more side-effects; particularly 28 showed leukopenia, 11 trombocytopenia, 13 anemia and 3 oral or gastrointestinal toxicity (table 2). In conclusion the therapeutic value of Thio-TEPA in ovarian cancer is small. A review of the literature has not shown that other drugs offer longer survival. The control of advanced disease can reasonably be more optimistic when randomized, prospective, clinical trials are performed. A plan for investigation in this direction is in preparation.


2020 ◽  
Author(s):  
Xinwei Sun ◽  
Mengyue Chen ◽  
Bin Liao ◽  
Zhiqing Liang

Abstract Background: Ovarian cancer (OC) is the most lethal malignancy of females worldwide. Unlimited proliferation is a fundamental feature of OC cells. The genes associated with cell proliferation are potential histopathological biomarkers and targets of anti-tumor therapeutic strategies. In the present study, we aimed to identify proliferation-associated biomarkers with potential prognostic, diagnostic, and therapeutic value and reveal the underlying molecular mechanism of the candidate gene involved in OC by a combination of bioinformatic and experimental methods.Results: KIF15 was upregulated in early-stage OC tissues and could predict poor prognosis of patients of Stage I and II. The knockdown of KIF15 significantly inhibited cell proliferation, tumor formation, and growth as well as promoted apoptosis of OC cells. A combination of experimental and bioinformatic analyses revealed KIF15 knockdown promoted cell apoptosis via activating crosstalk of multi-pathways in OC.Conclusion: In this study, KIF15, an early-stage prognostic gene, was identified as a potential histopathological biomarker and therapeutic target of OC.


2020 ◽  
Author(s):  
Huan Wang ◽  
Yimin Han

Abstract Background: This study aimed to compare the efficacy of albumin-bound paclitaxel combined with carboplatin (Nab-TC) with that of traditional solvent-based paclitaxel combined with carboplatin (TC) as a neoadjuvant chemotherapy regimen for primary epithelial ovarian cancer. Methods: Seventy-six patients with advanced primary epithelial ovarian cancer admitted for treatment at the Third Affiliated Hospital of Harbin Medical University from January 2015 to August 2020 were retrospectively selected. All patients underwent surgery after two courses of neoadjuvant chemotherapy with a combination of paclitaxel and carboplatin. Among the patients included for study, 34 were in the Nab-TC program and 42 in the TC program. Results: After two courses of chemotherapy, the ORR value was 52.38% in the TC group and 58.82% in the Nab-TC group (P=0.355). The CA125 value of the Nab-TC group decreased by 88.28% and that of the TC group by 86.99% (P=0.358). Overall operation time, intraoperative blood loss and postoperative hospital time of patients in the Nab-TC group were lower (P>0.05) and length of total hospital stay was significantly lower (P<0.05) relative to the TC group. Moreover, incidence of bone marrow suppression, abnormal liver function, arrhythmia and hyperglycemia in the Nab-TC group were lower (P>0.05) and total incidence of nausea and vomiting as well as grade III and IV stages were significantly lower (P<0. 05) than those in the TC group. However, the frequency of acral numbness in Nab-TC group was higher compared to the TC group (P<0.05). Conclusion: The efficacy of the Nab-TC regimen as neoadjuvant chemotherapy for advanced primary epithelial ovarian cancer was equivalent to that of the TC regimen, along with a lower incidence of adverse reactions, supporting its therapeutic value in the clinic.


Author(s):  
Xiao Wei ◽  
Hua Lou ◽  
Dongchen Zhou ◽  
Yijuan Jia ◽  
Huayi Li ◽  
...  

Abstract Background Ovarian cancer (OC) progression is an unmet medical challenge. Since omental metastases were palpated harder than their primary counterparts during cytoreductive surgery of patients with epithelial ovarian cancer (EOC), we were inspired to investigate OC progression from the perspective of biomechanics. Methods Atomic Force Microscope (AFM) was used to measure the Young’s modulus of tissues. The collagen-coated polyacrylamide hydrogel (PA gel) system was prepared to mimic the soft and stiff substrates in vitro. The effect of TAGLN was evaluated both in vitro and in vivo using transwell assay, immunofluorescence, western blot analysis and immunohistochemistry. Results We quantitatively confirmed that omental metastases were stiffer and more abundant in desmoplasia compared with paired primary tumors, and further demonstrated that matrix stiffness could notably regulate OC progression. Remarkably, TAGLN, encoding an actin cross-linking/gelling protein, was identified as a potent mechanosensitive gene that could form a regulation loop with Src activation reacting to environmental stiffness, thus mediating stiffness-regulated OC progression through regulating RhoA/ROCK pathway. Conclusions These data demonstrate that targeting extra-cellular matrix (ECM) stiffness could probably hamper OC progression, and of note, targeting TAGLN might provide promising clinical therapeutic value for OC therapy.


2021 ◽  
Vol 11 (4) ◽  
pp. 316
Author(s):  
Chia-Jung Li ◽  
Li-Te Lin ◽  
Pei-Yi Chu ◽  
An-Jen Chiang ◽  
Hsiao-Wen Tsai ◽  
...  

This paper investigates the expression of the CREB1 gene in ovarian cancer (OV) by deeply excavating the gene information in the multiple databases and the mechanism thereof. In short, we found that the expression of the CREB1 gene in ovarian cancer tissue was significantly higher than that of normal ovarian tissue. Kaplan–Meier survival analysis showed that the overall survival was significantly shorter in patients with high expression of the CREB1 gene than those in patients with low expression of the CREB1 gene, and the prognosis of patients with low expression of the CREB1 gene was better. The CREB1 gene may play a role in the occurrence and development of ovarian cancer by regulating the process of protein. Based on differentially expressed genes, 20 small-molecule drugs that potentially target CREB1 with abnormal expression in OV were obtained from the CMap database. Among these compounds, we found that naloxone has the greatest therapeutic value for OV. The high expression of the CREB1 gene may be an indicator of poor prognosis in ovarian cancer patients. Targeting CREB1 may be a potential tool for the diagnosis and treatment of OV.


2015 ◽  
Vol 58 ◽  
pp. 115-131 ◽  
Author(s):  
Ayane Motomitsu ◽  
Shinichiro Sawa ◽  
Takashi Ishida

The ligand–receptor-based cell-to-cell communication system is one of the most important molecular bases for the establishment of complex multicellular organisms. Plants have evolved highly complex intercellular communication systems. Historical studies have identified several molecules, designated phytohormones, that function in these processes. Recent advances in molecular biological analyses have identified phytohormone receptors and signalling mediators, and have led to the discovery of numerous peptide-based signalling molecules. Subsequent analyses have revealed the involvement in and contribution of these peptides to multiple aspects of the plant life cycle, including development and environmental responses, similar to the functions of canonical phytohormones. On the basis of this knowledge, the view that these peptide hormones are pivotal regulators in plants is becoming increasingly accepted. Peptide hormones are transcribed from the genome and translated into peptides. However, these peptides generally undergo further post-translational modifications to enable them to exert their function. Peptide hormones are expressed in and secreted from specific cells or tissues. Apoplastic peptides are perceived by specialized receptors that are located at the surface of target cells. Peptide hormone–receptor complexes activate intracellular signalling through downstream molecules, including kinases and transcription factors, which then trigger cellular events. In this chapter we provide a comprehensive summary of the biological functions of peptide hormones, focusing on how they mature and the ways in which they modulate plant functions.


2020 ◽  
Vol 159 ◽  
pp. 346-347
Author(s):  
W.Y. Hwang ◽  
S.I. Kim ◽  
M. Lee ◽  
K. Kim ◽  
J.H. No ◽  
...  

Sign in / Sign up

Export Citation Format

Share Document