Related Experiment Video
Updated: Jun 26, 2025

09:24
3-D Cell Culture System for Studying Invasion and Evaluating Therapeutics in Bladder Cancer
Published on: September 13, 2018
9.0K
Nuclear matrix protein 22 in bladder cancer
Kun Cheng1, Shun Wan1, Si-Yu Chen1
1Department of Urology, Lanzhou University Second Hospital, Lanzhou 730000, PR China; Gansu Province Clinical Research Center for Urology, Lanzhou 730000, PR China.
Summary
New biosensors offer a non-invasive way to detect bladder cancer (BC) using Nuclear Matrix Protein 22 (NMP22). While promising, sensor design needs optimization for widespread clinical use.
Area of Science:
- Biomedical Engineering
- Oncology
- Analytical Chemistry
Background:
- Bladder cancer (BC) is a significant global health issue, with over 570,000 new cases annually.
- Current diagnostic methods like cystoscopy are invasive and costly, necessitating alternative approaches.
- Nuclear Matrix Protein 22 (NMP22) is an FDA-approved biomarker for non-invasive BC detection.
Purpose of the Study:
- To review NMP22 biosensors developed over the last decade.
- To evaluate their potential for clinical translation.
- To suggest design improvements for future NMP22 detection devices.
Main Methods:
- Review of electrochemical, colorimetric, and fluorescence biosensors for NMP22 detection.
- Analysis of sensor performance, sensitivity, and limitations.
- Discussion of clinical applicability and future research directions.
Main Results:
- Various NMP22 biosensors demonstrate enhanced sensitivity compared to traditional methods.
- Electrochemical, colorimetric, and fluorescence approaches show promise for BC detection.
- Existing devices often have limitations hindering clinical adoption.
Conclusions:
- NMP22 biosensors represent a significant advancement in non-invasive bladder cancer diagnostics.
- Optimizing sensor design is crucial for successful clinical translation.
- Further development can leverage NMP22 as a legacy biomarker for improved patient outcomes.
Related Concept Videos
Abnormal Proliferation
4.5K
Under normal conditions, most adult cells remain in a non-proliferative state unless stimulated by internal or external factors to replace lost cells. Abnormal cell proliferation is a condition in which the cell's growth exceeds and is uncoordinated with normal cells. In such situations, cell division persists in the same excessive manner even after cessation of the stimuli, leading to persistent tumors. The tumor arises from the damaged cells that replicate to pass the damage to the...
4.5K
The Retinoblastoma Gene
4.1K
Tumor suppressor genes are normal genes that can slow down cell division, repair DNA mistakes, or program the cells for apoptosis in case of irreparable damage. Hence, they play an essential role in preventing the proliferation of damaged cells.
The first-ever tumor suppressor gene called Rb was identified in retinoblastoma - a rare eye tumor in children. In inherited forms of the disease, a child inherits one defective copy of the Rb gene, which predisposes them to retinoblastoma. However,...
The first-ever tumor suppressor gene called Rb was identified in retinoblastoma - a rare eye tumor in children. In inherited forms of the disease, a child inherits one defective copy of the Rb gene, which predisposes them to retinoblastoma. However,...
4.1K
Nuclear Localization Signals and Import
5.7K
Proteins targeted to the nucleus carry short stretches of amino acid sequences called the nuclear localization signal or NLS. Classical nuclear localization signals are of two types: monopartite and bipartite NLS. Monopartite classical NLS (cNLS) consists of a single cluster of 4-8 amino acids. Bipartite cNLS consists of two clusters of 2-3 amino acids and a 9-12 residue long proline-rich linker bridging the two clusters. Signal clusters are rich in positively charged amino acids such as...
5.7K
The Intrinsic Apoptotic Pathway
6.5K
Internal cellular stress, such as cellular injury or hypoxia, triggers intrinsic apoptosis. The B-cell lymphoma 2 (Bcl-2) family of proteins are the primary regulators of the intrinsic apoptotic pathway. For example, during DNA damage, checkpoint proteins, such as Ataxia Telangiectasia Mutated (ATM protein) and Checkpoints Factor-2 (Chk2) proteins, are activated. These proteins phosphorylate p53 which further activates pro-apoptotic proteins, such as Bax, Bak, PUMA, and Noxa, and inhibits...
6.5K

