Is the lectin binding pattern of human breast and colon cancer cells influenced by modulators of sialic acid metabolism?

1996 ◽  
Vol 106 (6) ◽  
pp. 599-604
Author(s):  
U. Schumacher ◽  
Dhia Mukhtar ◽  
Peer Stehling ◽  
Werner Reutter
2012 ◽  
Vol 200 (1) ◽  
pp. 38-44 ◽  
Author(s):  
Mundekkad Deepa ◽  
Thavamani Sureshkumar ◽  
Padikara Kutty Satheeshkumar ◽  
Sulochana Priya

Cancers ◽  
2021 ◽  
Vol 13 (13) ◽  
pp. 3216
Author(s):  
Julita Kulbacka ◽  
Nina Rembiałkowska ◽  
Anna Szewczyk ◽  
Helena Moreira ◽  
Anna Szyjka ◽  
...  

(1) Background: Calcium electroporation (CaEP) is based on the application of electrical pulses to permeabilize cells (electroporation) and allow cytotoxic doses of calcium to enter the cell. (2) Methods: In this work, we have used doxorubicin-resistant (DX) and non-resistant models of human breast cancer (MCF-7/DX, MCF-7/WT) and colon cancer cells (LoVo, LoVo/DX), and investigated the susceptibility of the cells to extracellular Ca2+ and electric fields in the 20 ns–900 ns pulse duration range. (3) Results: We have observed that colon cancer cells were less susceptible to PEF than breast cancer cells. An extracellular Ca2+ (2 mM) with PEF was more disruptive for DX-resistant cells. The expression of glycoprotein P (MDR1, P-gp) as a drug resistance marker was detected by the immunofluorescent (CLSM) method and rhodamine-123 efflux as an MDR1 activity. MDR1 expression was not significantly modified by nanosecond electroporation in multidrug-resistant cells, but a combination with calcium ions significantly inhibited MDR1 activity and cell viability. (4) Conclusions: We believe that PEF with calcium ions can reduce drug resistance by inhibiting drug efflux activity. This phenomenon of MDR mechanism disruption seems promising in anticancer protocols.


2020 ◽  
Vol 34 (S1) ◽  
pp. 1-1 ◽  
Author(s):  
Eman Abu-Gharbieh ◽  
Waseem El-Huneidi ◽  
Naglaa G. Shehab ◽  
Khuloud Bajbouj ◽  
Arya Vinod ◽  
...  

2020 ◽  
Vol 881 ◽  
pp. 173210 ◽  
Author(s):  
Elena Monti ◽  
Emanuela Marras ◽  
Pamela Prini ◽  
Marzia Bruna Gariboldi

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