Publications by authors named "Lu-Sheng Xin"

Ostreid herpesvirus 1 (OsHV-1), a member of the family (order ), is a major pathogen of bivalves. However, the molecular details of the malacoherpesvirus infection cycle and its overall similarity to the replication of mammalian herpesviruses (family ) remain obscure. Here, to gain insights into the OsHV-1 biology, we performed long-read sequencing of infected blood clams, , which yielded over one million OsHV-1 long reads.

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Article Synopsis
  • OsHV-1 is a virus that severely affects various important bivalve species in aquaculture, with heightened mass mortality events in blood clams since 2012.
  • This study aimed to track the distribution of OsHV-1 in five organs (mantle, hepatopancreas, gill, foot, and adductor muscle) using methods like quantitative PCR and histopathology.
  • Findings showed that viral loads increased significantly over time, with tissue damage primarily in connective tissues and gills, while specific cell types responded to the infection.
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The application of oncolytic peptides has become a powerful approach to induce complete and long-lasting remission in multiple types of carcinomas, as affirmed by the appearance of tumor-associated antigens and adenosine triphosphate (ATP) in large quantities, which jumpstarts the cancer-immunity cycle. However, the ATP breakdown product adenosine is a significant contributor to forming the immunosuppressive tumor microenvironment, which substantially weakens peptide-driven oncolytic immunotherapy. In this study, a lipid-coated micelle (CA@TLM) loaded with a stapled oncolytic peptide (PalAno) and an adenosine 2A receptor (A2AR) inhibitor (CPI-444) is devised to enact tumor-targeted oncolytic immunotherapy and to overcome adenosine-mediated immune suppression simultaneously.

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The Pacific oyster is one of the most important cultured marine species around the world. Production of Pacific oysters in China has depended primarily on hatchery produced seeds since 2016, with the successful introduction and development of triploid oysters. However, the seed supply of Pacific oysters is threatened by recurring mass mortality events in recent years.

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Perkinsosis has been recognized as one of the major threats to natural and farmed bivalve populations, many of which are of commercial as well as environmental significance. Three Perkinsus species have been identified in China, and the Manila clam (Ruditapes philippinarum) was the most frequently infected species in northern China. Although the occurrence and seasonal variation of Perkinsus spp.

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This study constructed a nano-drug delivery system, A3@GMH, by co-delivering the stapled anoplin peptide(Ano-3, A3) with the light-harvesting material graphene oxide(GO), and evaluated its oncolytic immunotherapy effect on triple-negative breast cancer(TNBC). A3@GMH was prepared using an emulsion template method and its physicochemical properties were characterized. The in vivo and in vitro photothermal conversion abilities of A3@GMH were investigated using an infrared thermal imager.

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Article Synopsis
  • The Pacific oyster aquaculture in China has rapidly expanded, experiencing periodic mass mortalities affecting different life stages, particularly hatchery larvae, linked to the Ostreid herpesvirus-1 (OsHV-1).
  • During a two-year study (2020-2021), dominant bacteria associated with these mass mortalities were identified as two strains, CgA1-1 and CgA1-2, which showed faster growth and higher pathogenicity at warmer temperatures.
  • The findings demonstrate that OsHV-1 poses a significant threat to larval hatchery production and that bacterial pathogens also contribute to mortality across various life stages of Pacific oysters in Northern China.
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Ostreid herpesvirus 1 (OsHV-1) infection caused mortalities with relevant economic losses in bivalve aquaculture industry worldwide. Initially described as an oyster pathogen, OsHV-1 can infect other bivalve species, like the blood clam Scapharca broughtonii. However, at present, little is known about the molecular interactions during OsHV-1 infection in the blood clam.

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The highly versatile group of Herpesviruses cause disease in a wide range of hosts. In invertebrates, only two herpesviruses are known: the malacoherpesviruses HaHV-1 and OsHV-1 infecting gastropods and bivalves, respectively. To understand viral transcript architecture and diversity we first reconstructed full-length viral genomes of HaHV-1 infecting and OsHV-1 infecting by DNA-seq.

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  • The study focuses on the effects of Haliotid herpesvirus 1 (HaHV-1) on abalone, specifically the pathological changes associated with abalone viral ganglioneuritis (AVG).
  • Researchers investigated the distribution of the HaHV-1-CN2003 variant across different organs in small abalone at various time points after infection, using histopathological examination and in situ hybridization (ISH) methods.
  • Findings showed that HaHV-1 primarily affected the pedal ganglia but could also infiltrate other tissues like the mantle and hepatopancreas, with viral particles found in blood cells, indicating a more extensive impact than just the nervous system.
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Background: The blood clam, Scapharca (Anadara) broughtonii, is an economically and ecologically important marine bivalve of the family Arcidae. Efforts to study their population genetics, breeding, cultivation, and stock enrichment have been somewhat hindered by the lack of a reference genome. Herein, we report the complete genome sequence of S.

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Haliotid herpesvirus-1 (HaHV-1) is the first identified gastropod herpesvirus, causing a highly lethal neurologic disease of abalone species. The genome of HaHV-1 has been sequenced, but the functions of the putative genes and their roles during infection are still poorly understood. In the present study, transcriptomic profiles of at 0, 24 and 60 h post injection (hpi) with HaHV-1 were characterized through high-throughput RNA sequencing.

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Article Synopsis
  • Haliotid herpesvirus-1 (HaHV-1) is responsible for a severe illness in abalone, impacting aquaculture, and is classified in a herpesvirus family related to other viruses.
  • This study presents the first transcriptional data from HaHV-1 following an infection in a specific abalone species, along with the sequencing of the Chinese variant's genome, revealing significant genetic variations and new gene predictions.
  • The research identifies key genes related to viral expression and infection dynamics, showcasing synchronized viral activity in the infected animals and differentiating early from late viral gene expressions.
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  • Abalone viral ganglioneuritis (AVG), caused by Haliotid herpesvirus-1 (HaHV-1), has led to significant mortality in wild and farmed abalone in Taiwan and Australia since 2003.
  • A study tested two cultivated abalone species in China, finding that Haliotis diversicolor supertexta is highly susceptible to HaHV-1, while Haliotis discus hannai showed no susceptibility.
  • The research used various methods to analyze the infection's effects, revealing that HaHV-1 targets both neural tissue and haemocytes in the affected abalone.
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  • Ostreid herpesvirus 1 (OsHV-1) causes significant deaths in marine mollusks and is hard to study due to lack of suitable cell lines for viral replication.
  • Researchers developed a method using long-range PCR to enrich OsHV-1 DNA for High-Throughput Sequencing (HTS), designing 23 primer pairs to cover almost the entire genome.
  • Sequencing using both Illumina and PacBio platforms showed high genetic diversity in OsHV-1 variants and found that the virus's evolution is primarily influenced by the species of its host rather than geographical factors.
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The ark shell, Scapharca (Anadara) broughtonii, is an economically important marine shellfish species in Northwestern Pacific. Mass mortalities of ark shell adults related to Ostreid herpesvirus-1 (OsHV-1) infection have occurred frequently since 2012. However, due to the lack of transcriptomic resource of ark shells, the molecular mechanisms underpinning the virus-host interaction remains largely undetermined.

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To synthesize salbutamol immunogen and develop an enzyme immunoassay (ELISA), a new salbutamol immunogen was synthesized using 4-aminobenzoic acid as a linker to connect hapten with carrier protein. An enzyme immunoassay based on the antibody prepared was developed and applied to detect salbutamol residue spiked in swine liver. An unusual coating antigen, clenbuterol-ovalbumin (OVA) conjugate instead of salbutamol-OVA conjugate, was used in the immunoassay and the results were discussed based on the structures of related compounds.

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