HeLa Cells News and Research

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Exposure to titanium dioxide nanoparticles increases bacterial infection of HeLa cells

When human cells are exposed to titanium dioxide without the presence of UV light from the sun, the risk for bacterial infection more than doubles. This finding by a Stony Brook University-led research team, published early online in the Journal of Nanobiotechnology, raises concerns about exposure to titanium dioxide, a nanoparticle commonly used in millions of products worldwide ranging from cosmetics to toothpaste, gum, food coloring, and medicines.

27 Apr 2016

New fluorescent dye could serve as powerful tool to visualize biological events in living cells

A new photostable fluorescent dye for super resolution microscopy could serve as a powerful tool to visualize biological events and structural details in living cells at real-time for prolonged recording periods.

27 Oct 2015

Cells expressing faulty CFTR channel to TNF-α can 'fix' cystic fibrosis cells

Scientific experiments examining what happens to the faulty channel protein that causes cystic fibrosis during inflammation have yielded unexpected and exciting results. The study, conducted by Sara Bitam and her colleagues at INSERM in France, has just passed peer review on open science publishing platform F1000Research.

3 Sep 2015

Correlated Light & Electron Microscopy at the Universities of Delft and Groningen

DELMIC develops and manufactures products which are focused on high performance, user friendly, integrated microscopy solutions. Users of Delmic's SECOM solution for Correlated Light & Electron Microscopy (CLEM) have recently published a review in Nature Methods that illustrates the power of CLEM in the world of biology.

From Delmic B.V. 14 Jul 2015

Scientists build artificial cells programmed to eat their undesirable neighbors

A team of researchers has devised a Pac-Man-style power pellet that gets normally mild-mannered cells to gobble up their undesirable neighbors. The development may point the way to therapies that enlist patients’ own cells to better fend off infection and even cancer, the researchers say. A description of the work will be published July 15 in the journal Science Signaling.

16 Jul 2014

Engineering breakthrough allows cancer researchers to create living tumors

Drexel's Wei Sun, PhD, Albert Soffa chair professor in the College of Engineering, has devised a method for 3D printing tumors that could soon be taking cancer research out of the petri dish.

26 Apr 2014

Research team discovers new water-soluble fluorescent system for early detection of cancer cells

A research team lead by Academy Professor Kari Rissanen at the University of Jyväskylä has discovered a new water-soluble fluorescent detection system that is extremely sensitive to pyrophosphate (PPi).

25 Apr 2014

Rice University research targets Parkinson's, Huntington's and other proteasomal diseases

Synthetic genetic circuitry created by researchers at Rice University is helping them see, for the first time, how to regulate cell mechanisms that degrade the misfolded proteins implicated in Parkinson's, Huntington's and other diseases.

9 Apr 2014

Researchers create new probe that freezes cells to "see" at greater detail without damaging

It's an odd twist. For scientists to determine if a cell is functioning properly, they must destroy it. This is what happens in X-ray fluorescence microscopy when biological specimens are exposed to ionizing radiation, which provides images with a level of detail that conventional microscopes just can't match.

26 Feb 2014

Engineers place tiny synthetic motors inside live human cells

For the first time, a team of chemists and engineers at Penn State University have placed tiny synthetic motors inside live human cells, propelled them with ultrasonic waves and steered them magnetically. It's not exactly "Fantastic Voyage," but it's close. The nanomotors, which are rocket-shaped metal particles, move around inside the cells, spinning and battering against the cell membrane.

11 Feb 2014

TSRI scientists use new technique to discover two antibodies that protect human cells from cold virus

Scientists at The Scripps Research Institute (TSRI) have demonstrated the power of a new drug discovery technique, which allows them to find-relatively quickly and cheaply-antibodies that have a desired effect on cells. The TSRI scientists used the technique to discover two antibodies that protect human cells from a cold virus.

20 Jan 2014

New study by bioethicists indicates patients give "broad endorsement" to iPSC research

In an early indication of lay opinions on research with induced pluripotent stem cells, which are stem cells made from skin or other tissues, a new study by bioethicists at Johns Hopkins University indicates that despite some ethical concerns, patients give the research "broad endorsement".

6 Jan 2014

Viewpoints: Obama overlooking legal constraints on employer mandate delay; Bush's 'unnecessary' heart procedure; discrimination against people with mental illnesses

In his Friday remarks, Mr. Obama also claimed that he had the "executive authority" for the mandate delay. But if he really believes that, then why did he say he would normally ask for a legislative "tweak." Either the fix requires legislation or it doesn't. His comments are certainly revealing about his attitudes on Presidential power and the constraints of the U.S. Constitution. Article II, Section 3 instructs him to take care that the laws be faithfully executed, not merely what he thinks is "the essence" of laws (8/10).

13 Aug 2013

Researchers unveil comprehensive portrait of the genome of world's first immortal cell line

A team from the University of Washington has unveiled a comprehensive portrait of the genome of the world's first immortal cell line, known as HeLa. The cell line was derived in 1951 from an aggressive cervical cancer that killed Henrietta Lacks, a 31-year-old African-American tobacco farmer and mother of five - the subject of the 2010 New York Times bestseller, The Immortal Life of Henrietta Lacks.

8 Aug 2013

Researchers develop new method for delivering molecules into targeted single cells through temporary holes

Northwestern University researchers have developed a new method for delivering molecules into single, targeted cells through temporary holes in the cell surface. The technique could find applications in drug delivery, cell therapy, and related biological fields.

22 May 2013

Toxins and cell death: Interview with Professor Denise Montell

There are multiple kinds of cell death. Cells can undergo programmed cell death, which is a series of events that undergoes a predictable order at certain times during development.

6 Jul 2012

Faulty conclusions due to contamination, misidentification and redundancy in widely available cell lines

Modern cancer therapies start in cells - researchers compare cancer samples to healthy cells to discover how cancer is genetically different, and use cell lines to test promising new drugs. However, a University of Colorado Cancer Center study published this week in the journal Gynecologic Oncology shows that due to a high rate of contamination, misidentification and redundancy in widely available cell lines, researchers may be drawing faulty conclusions.

22 Jun 2012

Irreversible Electroporation can more effectively kill cancer cells with BNNTs

A new study has shown that adding boron-nitride nanotubes to the surface of cancer cells can double the effectiveness of Irreversible Electroporation, a minimally invasive treatment for soft tissue tumors in the liver, lung, prostate, head and neck, kidney and pancreas.

27 Apr 2012

Researchers develop new 3D bone marrow culture systems

Stromal cells, as distinct from hematopoietic cells, are an essential component of the bone marrow microenvironment and are necessary for the long-term maintenance of hematopoietic stem cells (HSCs) in vitro.

2 Nov 2011

New top-down method can quickly separate, identify thousands of protein molecules

A team led by Northwestern University chemical biologist Neil Kelleher has developed a new "top-down" method that can separate and identify thousands of protein molecules quickly. Many have been skeptical that such an approach, where each protein is analyzed intact instead of in smaller parts, could be done on such a large scale.

31 Oct 2011