I was culturing them for the past 9 days and was about to passage them after 2-3 days. However, I observed a sudden decrease in cell number and clump formation.
I have never seen like this. Were they growing first 9 days well?
Dear Sumanta,
It was documented that temperature and calcium ions affect aggregation of mesenchymal stem cells in phosphate buffered saline.
For more details please see the attached publication.
Hoping this will be helpful,
Rafik
Yes. They were growing and exhibiting the morphology as they should. But, all of a sudden they started to form aggregates.
Thank you, rafik.
yes, it happened with me many a times when the culture grows old.
Thanks, parinita. So how exactly did you get rid of the problem ? You had to passage the cells or change the media ?
Do the cells look not attached to the surface of flask? I have initiated MCF7 cell culture 2 days ago. I have used DMEM/f-12 supplemented with 10% FBS, 1% MEM non-essential amino acids, 10 ug/ml...
01 February 2017 2,415 5 View
I would like to know the right combination.MCF-7/hMSCs or MDA-MB-231/hMSCs if I want to get tumor formation on a 3D scaffold.
08 September 2015 440 5 View
What are the emerging trends and opportunities for STEM education and careers in the online space?
10 August 2024 507 0 View
I have carried out MFC experiments on three different volumes, 50, 500 and 1000 mL of wastewater. Results after MFC treatment shows that TDS and EC are more in larger volumes of water i.e. TDS and...
09 August 2024 9,621 0 View
Hello everyone! I observed in my culture (htert-RPE1 cells) an orange- red particle at the bottom of the dish. It is visible to the naked eye as a very very small red dot. Could it be a...
09 August 2024 2,824 3 View
I am working in fungal fermentation of soybean meal and there is bacterial growth in them at times. I am trying to quantify fungal cell counts and bacterial cells; but I haven't been able to do at...
07 August 2024 7,535 4 View
Hi, I have a question about normalizing the MTT OD values for doing the statistical analysis. So, if we have 3 different plates and we call them 3 different replicates, so, first we would...
07 August 2024 8,106 4 View
Previously when I co-coluture anti-CD19(FMC63) CAR-Jurkat with Raji with E:T=5:1, Jurkat can eliminate Raji in 24h. However, when I test another CAR construct, although I can dectect totally CD69...
06 August 2024 641 2 View
After immunohistochemistry of previously fixed in PFA and EtOH and then frozen 20 μm sections of zebrafish brain, DAPI staining is very weak (right) compared to the same sections stained without...
05 August 2024 9,637 2 View
I have tried several times to isolate lymphocytes from mouse spleen, but all attempts have been unsuccessful. I tried most available protocols. I used different dissociation media (HBSS with Ca...
04 August 2024 9,913 7 View
I have protein-membrane simulations (PDB, PSF, DCD) and have noticed that water molecules near the protein are not visible in the simulations. How can I fix this issue? Is there a way to place the...
04 August 2024 1,200 2 View
Hi, I am isolating monocytes from the bone marrow using the Mouse Monocyte EasySep kit. I want to treat these cells and monitor expression of specific markers over the course of 10 days. I will...
04 August 2024 7,282 2 View