scholarly journals Inhibitory effects of a new bisphosphonate, minodronate, on proliferation and invasion of a variety of malignant bone tumor cells

2006 ◽  
Vol 24 (6) ◽  
pp. 1138-1144 ◽  
Author(s):  
Tadahiko Kubo ◽  
Shoji Shimose ◽  
Toshihiro Matsuo ◽  
Kumi Tanaka ◽  
Yuji Yasunaga ◽  
...  
Keyword(s):  
Tumor Cells ◽  
Bone Tumor ◽  
Malignant Bone Tumor ◽  
Inhibitory Effects ◽  
Proliferation And Invasion

scholarly journals Inhibitory Effects of a Reengineered Anthrax Toxin on Canine Oral Mucosal Melanomas

Toxins ◽  
2020 ◽  
Vol 12 (3) ◽  
pp. 157 ◽  
Author(s):  
Adriana Tomoko Nishiya ◽  
Marcia Kazumi Nagamine ◽  
Ivone Izabel Mackowiak da Fonseca ◽  
Andrea Caringi Miraldo ◽  
Nayra Villar Scattone ◽  
...  
Keyword(s):  
Tumor Cells ◽  
Evaluation Criteria ◽  
Anthrax Toxin ◽  
Treatment Modalities ◽  
Inhibitory Effects ◽  
Upa Receptor ◽  
New Treatment ◽  
Oral Malignancy

Canine oral mucosal melanomas (OMM) are the most common oral malignancy in dogs and few treatments are available. Thus, new treatment modalities are needed for this disease. Bacillus anthracis (anthrax) toxin has been reengineered to target tumor cells that express urokinase plasminogen activator (uPA) and metalloproteinases (MMP-2), and has shown antineoplastic effects both, in vitro and in vivo. This study aimed to evaluate the effects of a reengineered anthrax toxin on canine OMM. Five dogs bearing OMM without lung metastasis were included in the clinical study. Tumor tissue was analyzed by immunohistochemistry for expression of uPA, uPA receptor, MMP-2, MT1-MMP and TIMP-2. Animals received either three or six intratumoral injections of the reengineered anthrax toxin prior to surgical tumor excision. OMM samples from the five dogs were positive for all antibodies. After intratumoral treatment, all dogs showed stable disease according to the canine Response Evaluation Criteria in Solid Tumors (cRECIST), and tumors had decreased bleeding. Histopathology has shown necrosis of tumor cells and blood vessel walls after treatment. No significant systemic side effects were noted. In conclusion, the reengineered anthrax toxin exerted inhibitory effects when administered intratumorally, and systemic administration of this toxin is a promising therapy for canine OMM.

scholarly journals Melatonin as an Adjuvant to Antiangiogenic Cancer Treatments

Cancers ◽  
2021 ◽  
Vol 13 (13) ◽  
pp. 3263
Author(s):  
Alicia González ◽  
Carolina Alonso-González ◽  
Alicia González-González ◽  
Javier Menéndez-Menéndez ◽  
Samuel Cos ◽  
...  
Keyword(s):  
Synergistic Effect ◽  
Protective Effect ◽  
Cancer Cells ◽  
Tumor Cells ◽  
Chemotherapeutic Agents ◽  
Inhibitory Effects ◽  
Anticancer Effect ◽  
Cancer Treatments ◽  
Melatonin Administration ◽  
Effects Of Radiation

Melatonin is a hormone with different functions, antitumor actions being one of the most studied. Among its antitumor mechanisms is its ability to inhibit angiogenesis. Melatonin shows antiangiogenic effects in several types of tumors. Combination of melatonin and chemotherapeutic agents have a synergistic effect inhibiting angiogenesis. One of the undesirable effects of chemotherapy is the induction of pro-angiogenic factors, whilst the addition of melatonin is able to overcome these undesirable effects. This protective effect of the pineal hormone against angiogenesis might be one of the mechanisms underlying its anticancer effect, explaining, at least in part, why melatonin administration increases the sensitivity of tumors to the inhibitory effects exerted by ordinary chemotherapeutic agents. Melatonin has the ability to turn cancer totally resistant to chemotherapeutic agents into a more sensitive chemotherapy state. Definitely, melatonin regulates the expression and/or activity of many factors involved in angiogenesis which levels are affected (either positively or negatively) by chemotherapeutic agents. In addition, the pineal hormone has been proposed as a radiosensitizer, increasing the oncostatic effects of radiation on tumor cells. This review serves as a synopsis of the interaction between melatonin and angiogenesis, and we will outline some antiangiogenic mechanisms through which melatonin sensitizes cancer cells to treatments, such as radiotherapy or chemotherapy.

Therapy and regeneration-combined bone cements for minimally invasive treatment of neoplastic bone defects

2021 ◽  
Author(s):  
Yu Qu ◽  
Hui Zhuang ◽  
Meng Zhang ◽  
Yufeng Wang ◽  
Dong Zhai ◽  
...  
Keyword(s):  
Calcium Phosphate ◽  
Minimally Invasive ◽  
Tumor Cells ◽  
Bone Tumor ◽  
Tumor Resection ◽  
Bone Defects ◽  
Bone Cements ◽  
Invasive Treatment ◽  
Calcium Phosphate Cements ◽  
Bone Tumor Resection

Although calcium phosphate cements (CPC) have been clinically used to repair bone defects caused by bone tumor resection, traditional CPC cannot kill the remaining tumor cells after surgery and prevent...

scholarly journals Bone tumor-targeted delivery of theranostic 195mPt-bisphosphonate complexes promotes killing of metastatic tumor cells

2020 ◽  
pp. 100088
Author(s):  
Robin A. Nadar ◽  
Gerben M. Franssen ◽  
Natasja W.M. Van Dijk ◽  
Karlijn Codee-van der Schilden ◽  
Mirjam de Weijert ◽  
...  
Keyword(s):  
Tumor Cells ◽  
Bone Tumor ◽  
Targeted Delivery ◽  
Metastatic Tumor

Delayed Initiation of Treatment Is Associated With Metastasis of Malignant Bone Tumor

2021 ◽  
Vol 41 (6) ◽  
pp. 2993-2999
Author(s):  
YOSHIHIRO ARAKI ◽  
NORIO YAMAMOTO ◽  
KATSUHIRO HAYASHI ◽  
AKIHIKO TAKEUCHI ◽  
SHINJI MIWA ◽  
...  
Keyword(s):  
Bone Tumor ◽  
Malignant Bone Tumor ◽  
Delayed Initiation
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