Mass Spectrometry in Advancement of Redox Precision Medicine

Author(s):  
Xiaofei Chen ◽  
Jingyun Lee ◽  
Hanzhi Wu ◽  
Allen W. Tsang ◽  
Cristina M. Furdui
Author(s):  
Pedro Cutillas ◽  
Benedikt M. Kessler

Methodologies for proteomics and metabolomics are providing an unprecedented wealth of insights into cancer molecular biology. Although different techniques for proteomics and metabolomics exist, molecular snapshots in cancer metabolism and alterations in the proteome are mainly possible due to advancements in state-of-the-art mass spectrometry technologies. In this chapter, we describe examples of how proteo-metabolomic approaches are contributing to our understanding of the molecular biology of cancer progression, signalling, survival mechanisms, angiogenesis, and metastasis. We also provide an overview of the translational information (including biomarkers) and clinically relevant insights that proteomics and metabolomics strategies may be able to deliver, despite limitations and technical challenges that still exist. A better understanding of cancer progression and an improvement of clinical outcomes will benefit from precision medicine initiatives, in which appropriate application of proteo-metabolomic methods are key for their success.


2019 ◽  
Vol 498 ◽  
pp. 38-46 ◽  
Author(s):  
Mia Yang Ang ◽  
Teck Yew Low ◽  
Pey Yee Lee ◽  
Wan Fahmi Wan Mohamad Nazarie ◽  
Victor Guryev ◽  
...  

2021 ◽  
Vol 19 (1) ◽  
pp. 1-14
Author(s):  
Phan Van Chi ◽  
Le Thi Bich Thao

In this review, we briefly discuss proteogenomics, the integration of proteomics with genomics and transcriptomics, whereby the underlying technologies are next-generation sequencing (NGS) and mass spectrometry (MS) with processing the resulting data, an emerging field that promises to accelerate fundamental research related to transcription and translation, as well as its applicability. By combining genomic and proteomic information, scientists are achieving new results due to a more complete and unified understanding of complex molecular biological processes. Part of this review introduces some of the results of using proteogenomics in solving problems such as annotation, gene/genome re-annotation, including editing of open reading frames (ORFs), or improving a process to detect new genes in a number of different organisms, including humans. In particular, the paper also discusses the potential of proteogenomics through research achievements on human genome/proteome in precision medicine, especially in projects on phylogenetic and diagnostic research. and cancer treatment. The challenges and future of proteogenomics are also discussed and documented.


Author(s):  
Sara L. Banerjee ◽  
Ugo Dionne ◽  
Ana I. Osornio-Hernandez ◽  
Nicolas Bisson

2016 ◽  
Vol 62 (1) ◽  
pp. 70-76 ◽  
Author(s):  
Nigel J Clarke

Abstract BACKGROUND Precision medicine is becoming a major topic within the medical community and is gaining traction as a standard approach in many disciplines. This approach typically revolves around the use of a patient's genetic makeup to allow the physician to choose the appropriate course of treatment. In many cases the genetic information directs the drug to be used to treat the patient. In other cases the genetic markers associated with enzyme function may inform dosage recommendations. However there is a second way in which precision medicine can be practiced—that is, by therapeutic drug monitoring (TDM). CONTENT A review of the use of mass spectrometry for TDM in the arena of precision medicine is undertaken. Because the measurement of a drug or its metabolites provides the physician with a snapshot of the therapeutic exposure the patient is undergoing, these concentrations can be thought of as an actual phenotype measurement based around the patient's genetics coupled with all of the environmental, pharmacological, and nutritional variables. The outcome of a TDM measurement by mass spectrometry provides the patient's current phenotype vs the potential phenotype imputed by the genetics. SUMMARY The use of mass spectrometry can provide an understanding of how a drug is interacting with the patient, and is orthoganol to the information provided by pharmacogenomic assays. Further, the speed and relatively low expense of drug monitoring by mass spectrometry makes it an ideal test for precision medicine patient management.


2021 ◽  
Author(s):  
Yechen Hu ◽  
Zhongcheng Wang ◽  
Liang Liu ◽  
Jianhua Zhu ◽  
Dongxue Zhang ◽  
...  

An overview of MS-based chemical mapping and profiling, indicating its contributions to the molecular understanding of diseases in precision medicine by answering "what", "where", "how many" and "whose” chemicals underlying clinical phenotypes.


Author(s):  
Philippe Fragu

The identification, localization and quantification of intracellular chemical elements is an area of scientific endeavour which has not ceased to develop over the past 30 years. Secondary Ion Mass Spectrometry (SIMS) microscopy is widely used for elemental localization problems in geochemistry, metallurgy and electronics. Although the first commercial instruments were available in 1968, biological applications have been gradual as investigators have systematically examined the potential source of artefacts inherent in the method and sought to develop strategies for the analysis of soft biological material with a lateral resolution equivalent to that of the light microscope. In 1992, the prospects offered by this technique are even more encouraging as prototypes of new ion probes appear capable of achieving the ultimate goal, namely the quantitative analysis of micron and submicron regions. The purpose of this review is to underline the requirements for biomedical applications of SIMS microscopy.Sample preparation methodology should preserve both the structural and the chemical integrity of the tissue.


Author(s):  
K.K. Soni ◽  
D.B. Williams ◽  
J.M. Chabala ◽  
R. Levi-Setti ◽  
D.E. Newbury

In contrast to the inability of x-ray microanalysis to detect Li, secondary ion mass spectrometry (SIMS) generates a very strong Li+ signal. The latter’s potential was recently exploited by Williams et al. in the study of binary Al-Li alloys. The present study of Al-Li-Cu was done using the high resolution scanning ion microprobe (SIM) at the University of Chicago (UC). The UC SIM employs a 40 keV, ∼70 nm diameter Ga+ probe extracted from a liquid Ga source, which is scanned over areas smaller than 160×160 μm2 using a 512×512 raster. During this experiment, the sample was held at 2 × 10-8 torr.In the Al-Li-Cu system, two phases of major importance are T1 and T2, with nominal compositions of Al2LiCu and Al6Li3Cu respectively. In commercial alloys, T1 develops a plate-like structure with a thickness <∼2 nm and is therefore inaccessible to conventional microanalytical techniques. T2 is the equilibrium phase with apparent icosahedral symmetry and its presence is undesirable in industrial alloys.


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