Walter Basso

Dr. Walter Basso


Research Focus & Metrics

Academic Career Length

28Years (1999-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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13 February 2015 in BMC Genomics
Verified
Journal Article
Open access
PDF file
AHAdrian B Hehl
Adrian B Hehl
WBWalter Basso
Walter Basso
CLChristoph Lippuner
Christoph Lippuner
CRChandra Ramakrishnan
Chandra Ramakrishnan
MOMichal Okoniewski
Michal Okoniewski
PDPeter Deplazes
Peter Deplazes
The apicomplexan parasite Toxoplasma gondii is cosmopolitan in nature, largely as a result of its highly flexible life cycle. Felids are its only definitive hosts and a wide range of mammals and birds serve as intermediate hosts. The latent bradyzoite stage is orally infectious in all warm-blooded vertebrates and establishes chronic, transmissible infections. When bradyzoites are ingested by felids, they transform into merozoites in enterocytes and expand asexually as part of their coccidian life cycle. In all other intermediate hosts, however, bradyzoites differentiate exclusively to tachyzoites, and disseminate extraintestinally to many cell types. Both merozoites and tachyzoites undergo rapid asexual population expansion, yet possess different effector fates with respect to the cells and tissues they develop in and the subsequent stages they differentiate into. To determine whether merozoites utilize distinct suites of genes to attach, invade, and replicate within feline enterocytes, we performed comparative transcriptional profiling on purified tachyzoites and merozoites. We used high-throughput RNA-Seq to compare the merozoite and tachyzoite transcriptomes. 8323 genes were annotated with sequence reads across the two asexually replicating stages of the parasite life cycle. Metabolism was similar between the two replicating stages. However, significant stage-specific expression differences were measured, with 312 transcripts exclusive to merozoites versus 453 exclusive to tachyzoites. Genes coding for 177 predicted secreted proteins and 64 membrane- associated proteins were annotated as merozoite-specific. The vast majority of known dense-granule (GRA), microneme (MIC), and rhoptry (ROP) genes were not expressed in merozoites. In contrast, a large set of surface proteins (SRS) was expressed exclusively in merozoites. The distinct expression profiles of merozoites and tachyzoites reveal significant additional complexity within the T. gondii life cycle, demonstrating that merozoites are distinct asexual dividing stages which are uniquely adapted to their niche and biological purpose.

8 December 2007 in Parasitology Research
Verified
Journal Article
Closed access
PDF file
GMGastón Moré
Gastón Moré
WBWalter Basso
Walter Basso
DBD. Bacigalupe
D. Bacigalupe
MVM. C. Venturini
M. C. Venturini
LVL. Venturini
L. Venturini

21 January 2011 in Veterinary Parasitology
Verified
Journal Article
Closed access
WBWalter Basso
Walter Basso
Gereon ScharesGereon Schares
Gereon Schares
NGN.S. Gollnick
N.S. Gollnick
MRM. Rütten
M. Rütten
PDP. Deplazes
P. Deplazes

1 August 2002 in Veterinary Parasitology
Verified
Journal Article
Closed access
DMDadin Moore
Dadin Moore
CCCarlos Manuel Campero
Carlos Manuel Campero
AOAnselmo Carlos Odeón
Anselmo Carlos Odeón
MPMarı́a Adela Posso
Marı́a Adela Posso
DCDora Cano
Dora Cano
ESErnesto Späth
Ernesto Späth

17 March 2010 in Veterinary Parasitology
Verified
Journal Article
Closed access
Gereon ScharesGereon Schares
Gereon Schares
WBWalter Basso
Walter Basso
MMM. Majzoub
M. Majzoub
ARA. Rostaher
A. Rostaher
JSJ.C. Scharr
J.C. Scharr
NGN.S. Gollnick
N.S. Gollnick

1 June 2013 in International Journal for Parasitology
Verified
Journal Article
Closed access
WBWalter Basso
Walter Basso
SHSonja Hartnack
Sonja Hartnack
LPLais Pardini
Lais Pardini
PMPavlo Maksimov
Pavlo Maksimov
BKBretislav Koudela
Bretislav Koudela
PDPeter Deplazes
Peter Deplazes