instruction:
In this task, you're given a paragraph from the research paper and your task is to generate a suitable title for the research paper based on the given paper. Under 100 words is a good title length.
question:
Muscle wasting is one of the main features of cancer cachexia, a multifactorial syndrome frequently occurring in oncologic patients. The onset of cachexia is associated with reduced tolerance and response to antineoplastic treatments, eventually leading to clinical conditions that are not compatible with survival. Among the mechanisms underlying cachexia, protein and energy dysmetabolism play a major role. In this regard, several potential treatments have been proposed, mainly on the basis of promising results obtained in preclinical models. However, at present, no treatment yet reached validation to be used in the clinical practice, although several drugs are currently tested in clinical trials for their ability to improve muscle metabolism in cancer patients. Along this line, the results obtained in both experimental and clinical studies clearly show that cachexia can be effectively approached by a multidirectional strategy targeting nutrition, inflammation, catabolism, and inactivity at the same time. In the present study, approaches aimed to modulate muscle metabolism in cachexia will be reviewed.
answer:
Modulating Metabolism to Improve Cancer-Induced Muscle Wasting


question:
The respiratory syncytial virus (RSV) fusion (F) glycoprotein is a major target of neutralizing antibodies arising from natural infection, and antibodies that specifically bind to the prefusion conformation of RSV F generally demonstrate the greatest neutralization potency. Prefusion-stabilized RSV F variants have been engineered as vaccine antigens, but crystal structures of these variants have revealed conformational differences in a key antigenic site located at the apex of the trimer, referred to as antigenic site Ø. Currently, it is unclear if flexibility in this region is an inherent property of prefusion RSV F or if it is related to inadequate stabilization of site Ø in the engineered variants. Therefore, we set out to investigate the conformational flexibility of antigenic site Ø, as well as the ability of the human immune system to recognize alternative conformations of this site, by determining crystal structures of prefusion RSV F bound to neutralizing human-derived antibodies AM22 and RSD5. Both antibodies bound with high affinity and were specific for the prefusion conformation of RSV F. Crystal structures of the complexes revealed that the antibodies recognized distinct conformations of antigenic site Ø, each diverging at a conserved proline residue located in the middle of an α-helix. These data suggest that antigenic site Ø exists as an ensemble of conformations, with individual antibodies recognizing discrete states. Collectively, these results have implications for the refolding of pneumovirus and paramyxovirus fusion proteins and should inform development of prefusion-stabilized RSV F vaccine candidates. Respiratory syncytial virus (RSV) is a pervasive pathogen that causes severe lower respiratory tract infections, leading to~100,000 deaths globally each year and hundreds of millions of dollars in healthcare costs. However, despite its prevalence, there is no vaccine for RSV and the only available therapy is limited to high-risk infants, leaving the vast majority of people with no effective means of prevention or treatment. The RSV fusion (F) protein is a major target of neutralizing antibodies, including extremely potent antibodies that PLOS Pathogens | https://doi.recognize prefusion-specific epitopes. In this study, we determined the crystal structures of two neutralizing human antibodies bound to prefusion RSV F. Our results reveal that each antibody recognizes a different conformation of a neutralization-sensitive epitope, suggesting that this region is inherently flexible and may be important for RSV F function. These results should guide future vaccine-design efforts and help elucidate the mechanisms of RSV F triggering and fusion. Conformational flexibility of antigenic site Ø PLOS Pathogens | https://doi.
answer:
Alternative conformations of a major antigenic site on RSV F


question:
Viruses employ different strategies to circumvent the antiviral actions of the innate immune response. SARS coronavirus (SARS-CoV), a virus that causes severe lung damage, encodes an array of proteins able to inhibit induction and signaling of type-I interferons. However, recent studies have demonstrated that interferons are produced during SARS-CoV infection in humans and macaques. Furthermore, nuclear translocation of activated STAT1 and a range of interferon-stimulated genes could be demonstrated in the lungs of SARS-CoV-infected macaques. In line with these observations, plasmacytoid dendritic cells have been shown to produce interferons upon SARS-CoV infection in vitro. Given the pivotal role of interferons during viral infections, (differential) induction of interferons may affect the outcome of the infection. Therefore, the functional implication of interferon production during SARS-CoV infection remains to be re-investigated. innate immunity; interferon; plasmacytoid dendritic cell; SARS coronavirus SARS emerged late 2002-early 2003 in Guangdong Province, China, and spread rapidly to several countries in Asia, North America and Europe causing disease in 8096 people, of whom 774 died [ 101 ] . Although the number of deaths caused by SARS remained relatively low compared with, for example, flu pandemics, the impact of the SARS epidemic was quite high.
answer:

Website 101 World Health Organization statistics. Future Virol